PTC31B-AA7M1SGFVWJJ

Pressure Switch, Gauge, NPT Male, -1 bar, 40 bar

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
Manufacturer: ENDRESS+HAUSER
Product type: Pressure Switches
SVHC: No SVHC (27-Jun-2024)
Deadband Max: -
Deadband Min: -
Pressure Type: Gauge
Product Range: Ceraphant PTC31B Series
Pressure Port Size: 1/2"
Pressure Port Type: NPT Male
Contact Configuration: -
Switching Current Max: 250mA
Switching Voltage Max: -
Operating Pressure Max: 40bar
Operating Pressure Min: -1bar
Operating Temperature Max: 70°C
Operating Temperature Min: -20°C
Transducer Connection / Termination: M12 Connector
Delivery and price
Units per pack	50
Price	305.21 €
Current stock	10+
Lead time	30 days
Datasheet
TI01130P/00/EN/07.23-00 71621496 2023-07-11 

Products 

Solutions 

Services 

## Technical Information Ceraphant PTC31B, PTP31B 

Process pressure measurement 

Pressure switch for safe measurement and monitoring of absolute and gauge pressure 

## Application 

The Ceraphant is a pressure switch for the measurement of absolute and gauge pressure in gases, vapors, liquids and dust. The Ceraphant can be used internationally thanks to a wide range of approvals and process connections. 

## Your benefits 

- High reproducibility and long-term stability 

- Reference accuracy: up to 0.3% 

- Customized measuring ranges 

- Turn down up to 5:1 

- Sensor for measuring ranges up to 400 bar (6 000 psi) 

- Housing and process isolating diaphragm made of 316L 

- Optionally available with IO-Link 

Operation and electrical connection in accordance with VDMA 24574-1:2008 

Ceraphant PTC31B, PTP31B 

## Table of contents 

|About this document . . . . . . . . . . . . . . . . . . . . . . . .|4|
|---|---|
|Document function . . . . . . . . . . . . . . . . . . . . . . . . . . . .|4|
|Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|4|
|Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|4|
|Terms and abbreviations . . . . . . . . . . . . . . . . . . . . . . . .|6|
|Turn down calculation . . . . . . . . . . . . . . . . . . . . . . . . . .|6|
|Function and system design . . . . . . . . . . . . . . . . . . .|7|
|Measuring principle - process pressure measurement . . . . .|7|
|Measuring system . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|7|
|Device features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|8|
|Product design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|9|
|System integration . . . . . . . . . . . . . . . . . . . . . . . . . . .|10|
|Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|11|
|Measured variable . . . . . . . . . . . . . . . . . . . . . . . . . . . .|11|
|Measuring range. . . . . . . . . . . . . . . . . . . . . . . . . . . .|11|
|Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br>Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br>Range of adjustment . . . . . . . . . . . . . . . . . . . . . . . . . .<br>Relay switching capacity . . . . . . . . . . . . . . . . . . . . . . . .|13<br>13<br>13<br>13|
|Signal range 4 to 20 mA . . . . . . . . . . . . . . . . . . . . . . . .|13|
|Load (for devices with analog output) . . . . . . . . . . . . . . .|13|
|Signal on alarm 4 to 20 mA . . . . . . . . . . . . . . . . . . . . . .|14|
|Dead time, time constant . . . . . . . . . . . . . . . . . . . . . . .|14|
|Dynamic behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . .|14|
|Dynamic behavior of switch output . . . . . . . . . . . . . . . . .|15|
|Damping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|15|



|Energy supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|16|
|---|---|
|Terminal assignment . . . . . . . . . . . . . . . . . . . . . . . . . .|16|
|Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|17|
|Current consumption and alarm signal . . . . . . . . . . . . . .|17|
|Power supply fault . . . . . . . . . . . . . . . . . . . . . . . . . . . .|17|
|Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . .|17|
|Cable specification (analog) . . . . . . . . . . . . . . . . . . . . . .|18|
|Residual ripple . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|18|
|Influence of power supply . . . . . . . . . . . . . . . . . . . . . . .|18|
|Overvoltage protection. . . . . . . . . . . . . . . . . . . . . . . .|18|



## Performance characteristics of the ceramic 

|Performance characteristics of the ceramic||
|---|---|
|process membrane . . . . . . . . . . . . . . . . . . . . . . . . .|19|
|Reference conditions . . . . . . . . . . . . . . . . . . . . . . . . . .<br>Uncertainty of measurement for small absolute pressure|19|
|ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br>Influence of orientation . . . . . . . . . . . . . . . . . . . . . . . .|19<br>19|
|Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br>Reference accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . .|19<br>19|
|Thermal change of the zero output and the output span . . .<br>Long-term stability . . . . . . . . . . . . . . . . . . . . . . . . . . .|19<br>19|
|Switch-on time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|20|



## Performance characteristics of metallic process 

|Performance characteristics of metallic process||
|---|---|
|membrane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|21|
|Reference conditions . . . . . . . . . . . . . . . . . . . . . . . . . .|21|



|Uncertainty of measurement for small absolute pressure||
|---|---|
|ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|21|
|Influence of orientation . . . . . . . . . . . . . . . . . . . . . . . .|21|
|Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|21|
|Reference accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . .|21|
|Thermal change of the zero output and the output span. . .|21|
|Long-term stability. . . . . . . . . . . . . . . . . . . . . . . . . . .|21|
|Switch-on time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|21|
|Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|22|
|Installation conditions . . . . . . . . . . . . . . . . . . . . . . . . .|22|
|Influence of orientation . . . . . . . . . . . . . . . . . . . . . . . .|22|
|Mounting location . . . . . . . . . . . . . . . . . . . . . . . . . . . .|22|
|Mounting instructions for oxygen applications . . . . . . . . .|24|
|Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|25|
|Ambient temperature range . . . . . . . . . . . . . . . . . . . . .|25|
|Storage temperature range . . . . . . . . . . . . . . . . . . . . . .|25|
|Climate class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|25|
|Degree of protection . . . . . . . . . . . . . . . . . . . . . . . . . .|25|
|Vibration resistance . . . . . . . . . . . . . . . . . . . . . . . . . . .|25|
|Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . .|25|
|Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|26|
|Process temperature range for devices with ceramic||
|process membrane . . . . . . . . . . . . . . . . . . . . . . . . . . . .|26|
|Process temperature range for devices with metallic||
|process membrane. . . . . . . . . . . . . . . . . . . . . . . . . . .|26|
|Pressure specifications . . . . . . . . . . . . . . . . . . . . . . . . .|26|
|Mechanical construction . . . . . . . . . . . . . . . . . . . .|27|
|Design, dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . .|27|
|Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . .|27|
|Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|28|
|Process connections with internal, ceramic process||
|membrane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|29|
|Process connections with internal, ceramic process||
|membrane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|30|
|Process connections with internal, ceramic process||
|membrane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|31|
|Process connections with internal, ceramic process||
|membrane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br>Process connections with internal, metal process|31|
|membrane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|32|
|Process connections with internal, metal process||
|membrane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|33|
|Process connections with internal, metal process||
|membrane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|34|
|Process connections with internal, metal process||
|membrane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|34|
|Process connections with flush mount, metal process||
|membrane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|35|
|Materials in contact with process . . . . . . . . . . . . . . . . . .|36|
|Materials not in contact with process . . . . . . . . . . . . . . .|37|
|Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|38|
|Operability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|39|
|IO-Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|39|



Endress+Hauser 

2 

Ceraphant PTC31B, PTP31B 

|Operation with local display . . . . . . . . . . . . . . . . . . . . .|39|
|---|---|
|Device Search (IO-Link) . . . . . . . . . . . . . . . . . . . . . . . .|40|
|Certificates and approvals . . . . . . . . . . . . . . . . . . .|41|
|CE mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|41|
|RoHS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|41|
|RCM marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|41|
|Pressure Equipment Directive 2014/68/EU (PED) . . . . . . .|41|
|Other standards and guidelines . . . . . . . . . . . . . . . . . . .|42|
|CRN approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|42|
|Calibration unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|42|
|Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|43|
|Inspection certificates . . . . . . . . . . . . . . . . . . . . . . . . . .|43|
|Ordering information . . . . . . . . . . . . . . . . . . . . . . .|43|
|Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|43|
|Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|44|
|Weld-in adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|44|
|M12 plug-in jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|44|
|Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . .|45|
|Field of activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|45|
|Technical Information . . . . . . . . . . . . . . . . . . . . . . . . .|45|
|Registered trademarks . . . . . . . . . . . . . . . . . . . . . .|45|



Endress+Hauser 

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Ceraphant PTC31B, PTP31B 

## About this document 

|About this document|About this document|About this document|About this document|
|---|---|---|---|
|Document function<br>The document contains all the technical data on the device and provides an overview of the||||
|accessories and other products that can be ordered for the device.||||
|Symbols used<br>Safety symbols||||
|**DANGER**||||
|This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in serious or||||
|fatal injury.||||
|**WARNING**||||
|This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in serious or||||
|fatal injury.||||
|**CAUTION**||||
|This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in minor or||||
|medium injury.||||
|**NOTICE**||||
|This symbol contains information on procedures and other facts which do not result in personal||||
|injury.||||
|Electrical symbols||||
|Protective earth (PE)||||
|Ground terminals, which must be grounded prior to establishing any other connections. The ground||||
|terminals are located on the inside and outside of the device.||||
|Ground||connection||
|Grounded clamp, which is grounded via a grounding system.||||
|Symbols|for||certain types of information|
|Permitted||||
|Procedures, processes or actions that are permitted.||||
|Forbidden||||
|Procedures, processes or actions that are forbidden.||||
|Tip||||
|Indicates|additional information|||
|Reference to documentation||||
|1.,<br>2.,<br>3.Series of steps<br>_Reference to page:_||||
|_Result of_|_an individual step:_|||
|Symbols|in graphics|||
|A, B, C ...View||||
|1, 2, 3 ...|Item numbers|||
|1.,<br>2.,<br>3.Series of steps||||



Documentation 

The following document types are available in the Downloads area of the Endress+Hauser website (www.endress.com/downloads): 

For an overview of the scope of the associated Technical Documentation, refer to the following: 

- _Device Viewer_ (www.endress.com/deviceviewer): Enter the serial number from the nameplate 

- _Endress+Hauser Operations app_ : Enter serial number from nameplate or scan matrix code on nameplate. 

Endress+Hauser 

4 

Ceraphant PTC31B, PTP31B 

Brief Operating Instructions (KA) 

Guide that takes you quickly to the 1st measured value 

The Brief Operating Instructions contain all the essential information from incoming acceptance to initial commissioning. 

Operating Instructions (BA) 

Your reference guide 

These Operating Instructions contain all the information that is required in various phases of the life cycle of the device: from product identification, incoming acceptance and storage, to mounting, connection, operation and commissioning through to troubleshooting, maintenance and disposal. 

Endress+Hauser 

5 

Ceraphant PTC31B, PTP31B 

Terms and abbreviations 

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1<br>2<br>3<br>4<br>p<br>0<br>LRL LRV URV URL MWP OPL<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
  A0029505<br>**----- End of picture text -----**<br>


- _1 OPL: The OPL (over pressure limit = sensor overload limit) for the measuring device depends on the lowestrated element, with regard to pressure, of the selected components, i.e. the process connection has to be taken into consideration in addition to the measuring cell. Observe pressure-temperature dependency. The OPL may only be applied for a short period of time._ 

- _2 MWP: The MWP (maximum working pressure) for the sensors depends on the lowest-rated element, with regard to pressure, of the selected components, i.e. the process connection has to be taken into consideration in addition to the measuring cell. Observe pressure-temperature dependency. The maximum working pressure may be applied at the device for an unlimited period. The MWP can be found on the nameplate._ 

- _3 The maximum sensor measuring range corresponds to the span between the LRL and URL. This sensor measuring range is equivalent to the maximum calibratable/adjustable span._ 

- _4 The calibrated/adjusted span corresponds to the span between the LRV and URV. Factory setting: 0 to URL. Other calibrated spans can be ordered as customized spans._ 

_p Pressure LRL Lower range limit URL Upper range limit LRV Lower range value URV Upper range value TD Turn down. Example - see the following section._ 

## Turn down calculation 

1 = 2 3 LRL LRV URV URL A0029545 

- _1 Calibrated/adjusted span 2 Zero point-based span 3 Upper range limit_ 

## Example: 

- Measuring cell: 10 bar (150 psi) 

- Upper range limit (URL) = 10 bar (150 psi) 

- Calibrated/adjusted span: 0 to 5 bar (0 to 75 psi) 

- Lower range value (LRV) = 0 bar (0 psi) 

- Upper range value (URV) = 5 bar (75 psi) 

URL TD = |URV - LRV| 

In this example, the TD is 2:1. This span is based on the zero point. 

Endress+Hauser 

6 

Ceraphant PTC31B, PTP31B 

## Function and system design 

Measuring principle - process pressure measurement 

## Devices with ceramic process isolating diaphragm (Ceraphire[®] ) 

The ceramic sensor is an oil-free sensor, i.e. the process pressure acts directly on the robust ceramic process isolating diaphragm and causes it to deflect. A pressure-dependent change in capacitance is measured at the electrodes of the ceramic substrate and the process isolating diaphragm. The measuring range is determined by the thickness of the ceramic process isolating diaphragm. 

## Advantages: 

- Guaranteed overload resistance up to 40 times the nominal pressure 

- The ultrapure 99.9% ceramic (Ceraphire[®] , see also "www.endress.com/ceraphire") ensures: 

- Extremely high chemical durability 

- High mechanical durability 

- Can be used in absolute vacuum 

- Small measuring ranges 

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1 2 3 4<br>p<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
  A0020465<br>**----- End of picture text -----**<br>


- _1 Air pressure (gauge pressure sensors)_ 

- _2 Ceramic substrate_ 

- _3 Electrodes_ 

- _4 Ceramic process isolating diaphragm_ 

## Devices with metallic process isolating diaphragm 

The process pressure deflects the metal process isolating diaphragm of the sensor and a fill fluid transfers the pressure to a Wheatstone bridge (semiconductor technology). The pressure-dependent change in the bridge output voltage is measured and evaluated. 

## Advantages: 

- Can be used for high process pressures 

- Fully welded sensor 

- Slim, flush-mounted process connections available 

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**----- Start of picture text -----**<br>
1<br>2<br>3<br>4<br>p<br>  A0016448<br>**----- End of picture text -----**<br>


- _1 Silicon measuring element, substrate_ 

- _2 Wheatstone bridge_ 

- _3 Channel with fill fluid_ 

- _4 Metal process isolating diaphragm_ 

Measuring system 

A complete measuring system comprises: 

Endress+Hauser 

7 

Ceraphant PTC31B, PTP31B 

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**----- Start of picture text -----**<br>
1 2 3<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
  A0021924<br>**----- End of picture text -----**<br>


- _1 PLC (programmable logic controller)_ 

- _2 E.g., RMA42/RIA45 (if required)_ 

- _3 Device_ 

Device features 

## Field of application 

Gauge pressure and absolute pressure 

## Process connections 

PTC31B: 

- Thread 

- Thread ANSI 

- Thread M24 x 1.5 

- Thread JIS 

PTP31B: 

- Thread ISO 228, also flush mount 

- Thread ASME 

- Thread DIN 13 

- Thread ASME 

- Thread JIS 

## Measuring ranges 

• PTC31B: from 0 to +100 mbar (0 to +1.5 psi) to 0 to +40 bar (0 to +600 psi). 

- PTP31B: from 0 to +400 mbar (0 to +6 psi) to 0 to +400 bar (0 to +5 800 psi). 

OPL (depends on the measuring range) 

- PTC31B: max. 0 to +60 bar (0 to +900 psi) 

- PTP31B: max. –1 to +600 bar (–15 to +9 000 psi) 

## MWP 

Max. 1 to +400 bar (15 to +6 000 psi) 

Process temperature range (temperature at process connection) 

- PTC31B: –25 to +100 °C (–13 to +212 °F) 

- PTP31B: –40 to +100 °C (–40 to +212 °F) 

## Ambient temperature range 

–20 to +70 °C (–4 to +158 °F) (in the range of the temperature limits with restrictions in optical properties, such as display speed and contrast) 

## Reference accuracy 

- Standard: up to 0.5 % 

- Platinum: up to 0.3 % 

## Supply voltage 

• Analog: 10 to 30 VDC 

- IO-Link: 10 to 30 VDC on a direct current power unit 

IO-Link communication is guaranteed only if the supply voltage is at least 18 V. 

## Output 

Devices with IO-Link: C/Q output for communication (SIO mode (switch output)) 

Endress+Hauser 

8 

Ceraphant PTC31B, PTP31B 

- 1 x PNP switch output (three-wire) (not with IO-Link) 

- 2 x PNP switch output (four-wire), IO-Link 

- 1 x PNP switch output + 4 to 20 mA output (four-wire), IO-Link 

## Material 

PTC31B: 

- Housing made of 316L (1.4404) 

- Process connections made of 316L 

- Process membrane made of Al2O3 aluminum-oxide ceramic, (Ceraphire[®] ), ultrapure 99.9 % 

PTP31B: 

- Housing made of 316L (1.4404) 

- Process connections made of 316L (1.4404) 

- Process membrane made of 316L (1.4435) 

## Options 

PTC31B: 

- Calibration certificate 

- Cleaned of oil and grease 

- Min. alarm current setting 

- 3.1 Material certificates 

- Cleaned for O2 applications 

- IO-Link 

PTP31B: 

- Calibration certificate 

- Cleaned of oil and grease 

- Min. alarm current setting 

- 3.1 Material certificates 

- IO-Link 

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**----- Start of picture text -----**<br>
Product designOverview of product design for analog communication version Item Description<br>A B C A Valve plug<br>B Cable<br>C M12 plug<br>Housing cap made of plastic<br>  A0022015   A0037236<br>  A0037238<br>D D Housing<br>E Process connection (sample illustration)<br>E<br>  A0027226<br>D<br>E<br>  A0027215<br>**----- End of picture text -----**<br>


Endress+Hauser 

9 

Ceraphant PTC31B, PTP31B 

|Overview of product design for IO-Link communication version|Item|Description|
|---|---|---|
|**C**<br>A0037238<br>**D**<br>**E**<br>A0027226<br>**D**<br>**E**<br>A0027215|C|M12 plug<br>Housing cap made of plastic|
||D<br>E|Housing<br>Process connection (sample illustration)|



System integration 

The device can be given a tag name (max. 32 alphanumeric characters). 

|Name<br>Measuring point (TAG), see additional specifications|Option1)|
|---|---|
||Z1|



1) Product Configurator, order code for "Marking" 

For devices with IO-Link, an IO-DD is available in the Downloads area of the Endress+Hauser website →   39. 

Endress+Hauser 

10 

Ceraphant PTC31B, PTP31B 

## Input 

Measured variable Measured process variable Gauge pressure and absolute pressure Calculated process variable Pressure Measuring range Ceramic process membrane 

## _Devices for gauge pressure measurement_ 

|Sensor|Device|Maximum<br>sensor measuring range|Maximum<br>sensor measuring range|Smallest<br>calibratable<br>1)|MWP|OPL|Factory settings2)|Option3)|
|---|---|---|---|---|---|---|---|---|
|||lower (LRL)|upper (URL)|span|||||
|||[bar (psi)]|[bar (psi)]|[bar (psi)]|[bar (psi)]|[bar (psi)]|||
|100 mbar (1.5 psi)4)|PTC31B|–0.1 to –1.5|+0.1 (+1.5)|0.02 (0.3)|2.7 (40.5)|4 (60)|0 to 100 mbar (0 to 1.5 psi)|1C|
|250 mbar (4 psi)5)|PTC31B|–0.25 (–4)|+0.25 (+4)|0.05 (1)|3.3 (49.5)|5 (75)|0 to 250 mbar (0 to 4 psi)|1E|
|400 mbar (6 psi)6)|PTC31B|–0.4 (–6)|+0.4 (+6)|0.08 (1.2)|5.3 (79.5)|8 (120)|0 to 400 mbar (0 to 6 psi)|1F|
|1 bar (15 psi)6)|PTC31B|–1 (–15)|+1 (+15)|0.2 (3)|6.7 (100.5)|10 (150)|0 to 1 bar (0 to 15 psi)|1H|
|2 bar (30 psi)6)|PTC31B|–1 (–15)|+2 (+30)|0.4 (6)|12 (180)|18 (270)|0 to 2 bar (0 to 30 psi)|1K|
|4 bar (60 psi)6)|PTC31B|–1 (–15)|+4 (+60)|0.8 (12)|16.7 (250.5)|25 (375)|0 to 4 bar (0 to 60 psi)|1M|
|10 bar (150 psi)6)|PTC31B|–1 (–15)|+10 (+150)|2 (30)|26.7 (400.5)|40 (600)|0 to 10 bar (0 to 150 psi)|1P|
|40 bar (600 psi)6)|PTC31B|–1 (–15)|+40 (+600)|8 (120)|40 (600)|60 (900)|0 to 40 bar (0 to 600 psi)|1S|



- 1) Highest turn down that can be set at the factory: 5:1. The turn down is preset and cannot be changed. 

- 2) Other measuring ranges (e.g.–1 to +5 bar (–15 to 75 psi)) can be ordered with customer-specific settings (see the Product Configurator, order code for "Calibration; Unit" option "U"). It is possible to invert the output signal (LRV = 20 mA; URV = 4 mA). Prerequisite: URV < LRV 

- 3) Product Configurator, order code for "Sensor range" 

- 4) Vacuum resistance: 0.7 bar (10.5 psi) abs. 

- 5) Vacuum resistance: 0.5 bar (7.5 psi) abs. 

- 6) Vacuum resistance: 0 bar (0 psi) abs. 

## _Devices for absolute pressure measurement_ 

|Sensor|Device|Maximum<br>sensor measuring range|Maximum<br>sensor measuring range|Smallest<br>calibratable<br>1)|MWP|OPL|Factory settings2)|Option3)|
|---|---|---|---|---|---|---|---|---|
|||lower (LRL)|upper (URL)|span|||||
|||[bar (psi)]|[bar (psi)]|[bar (psi)]|[bar (psi)]|[bar (psi)]|||
|100 mbar (1.5 psi)|PTC31B|0|+0.1 (+1.5)|0.1 (1.5)|2.7 (40.5)|4 (60)|0 to 100 mbar (0 to 1.5 psi)|2C|
|250 mbar (4 psi)|PTC31B|0|+0.25 (+4)|0.25 (4)|3.3 (49.5)|5 (75)|0 to 250 mbar (0 to 4 psi)|2E|
|400 mbar (6 psi)|PTC31B|0|+0.4 (+6)|0.4 (6)|5.3 (79.5)|8 (120)|0 to 400 mbar (0 to 6 psi)|2F|
|1 bar (15 psi)|PTC31B|0|+1 (+15)|0.4 (6)|6.7 (100.5)|10 (150)|0 to 1 bar (0 to 15 psi)|2H|
|2 bar (30 psi)|PTC31B|0|+2 (+30)|0.4 (6)|12 (180)|18 (270)|0 to 2 bar (0 to 30 psi)|2K|
|4 bar (60 psi)|PTC31B|0|+4 (+60)|0.8 (12)|16.7 (250.5)|25 (375)|0 to 4 bar (0 to 60 psi)|2M|
|10 bar (150 psi)|PTC31B|0|+10 (+150)|2 (30)|26.7 (400.5)|40 (600)|0 to 10 bar (0 to 150 psi)|2P|
|40 bar (600 psi)|PTC31B|0|+40 (+600)|8 (120)|40 (600)|60 (900)|0 to 40 bar (0 to 600 psi)|2S|



- 1) Highest turn down that can be set at the factory: 5:1. The turn down is preset and cannot be changed. 

- 2) Other measuring ranges (e.g.–1 to +5 bar (–15 to 75 psi)) can be ordered with customer-specific settings (see the Product Configurator, order code for "Calibration; Unit" option "U"). It is possible to invert the output signal (LRV = 20 mA; URV = 4 mA). Prerequisite: URV < LRV 

- 3) Product Configurator, order code for "Sensor range" 

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_Maximum turn down which can be ordered for absolute pressure and gauge pressure sensors_ 

Devices for gauge pressure measurement 

- 6 bar (90 psi), 16 bar (240 psi), 25 bar (375 psi): TD 1:1 to TD 2.5:1 

- All other measuring ranges: TD 1:1 to TD 5:1 

Devices for absolute pressure measurement 

- 100 mbar (1.5 psi), 250 mbar (4 psi), 400 mbar (6 psi): TD 1:1 

- 1 bar (15 psi): TD 1:1 to TD 2.5:1 

- All other measuring ranges: TD 1:1 to TD 5:1 

## Metallic process membrane 

## _Devices with gauge pressure measurement_ 

|Sensor|Device|Maximum<br>sensor measuring range|Maximum<br>sensor measuring range|Smallest<br>calibratable<br>1)|MWP|OPL|Factory settings2)|Option3)|
|---|---|---|---|---|---|---|---|---|
|||lower (LRL)|upper (URL)|span|||||
|||[bar (psi)]|[bar (psi)]|[bar (psi)]|[bar (psi)]|[bar (psi)]|||
|400 mbar (6 psi)4)|PTP31B|–0.4 (–6)|+0.4 (+6)|0.4 (6)|1 (15)|1.6 (24)|0 to 400 mbar (0 to 6 psi)|1F|
|1 bar (15 psi)4)|PTP31B|–1 (–15)|+1 (+15)|0.4 (6)|2.7 (40.5)|4 (60)|0 to 1 bar (0 to 15 psi)|1H|
|2 bar (30 psi)4)|PTP31B|–1 (–15)|+2 (+30)|0.4 (6)|6.7 (100.5)|10 (150)|0 to 2 bar (0 to 30 psi)|1K|
|4 bar (60 psi)4)|PTP31B|–1 (–15)|+4 (+60)|0.8 (12)|10.7 (160.5)|16 (240)|0 to 4 bar (0 to 60 psi)|1M|
|10 bar (150 psi)4)|PTP31B|–1 (–15)|+10 (+150)|2 (30)|25 (375)|40 (600)|0 to 10 bar (0 to 150 psi)|1P|
|40 bar (600 psi)4)|PTP31B|–1 (–15)|+40 (+600)|8 (120)|100 (1500)|160 (2400)|0 to 40 bar (0 to 600 psi)|1S|
|100 bar (1 500 psi)4)|PTP31B|–1 (–15)|+100 (+1500)|20 (300)|100 (1500)|160 (2400)|0 to 100 bar (0 to 1 500 psi)|1U|
|400 bar (6 000 psi)4)|PTP31B|–1 (–15)|+400 (+6000)|80 (1200)|400 (6000)|600 (9000)|0 to 400 bar (0 to 6 000 psi)|1W|



- 1) Highest turn down that can be set at the factory: 5:1. The turn down is preset and cannot be changed. 

- 2) Other measuring ranges (e.g.–1 to +5 bar (–15 to 75 psi)) can be ordered with customer-specific settings (see the Product Configurator, order code for "Calibration; Unit" option "U"). It is possible to invert the output signal (LRV = 20 mA; URV = 4 mA). Prerequisite: URV < LRV 

- 3) Product Configurator, order code for "Sensor range" 

- 4) Vacuum resistance: 0.01 bar (0.145 psi) abs. 

## _Devices with absolute pressure measurement_ 

|Sensor|Device|Maximum<br>sensor measuring range|Maximum<br>sensor measuring range|Smallest<br>calibratable<br>1)|MWP|OPL|Factory settings2)|Option3)|
|---|---|---|---|---|---|---|---|---|
|||lower (LRL)|upper (URL)|span|||||
|||[bar (psi)]|[bar (psi)]|[bar (psi)]|[bar (psi)]|[bar (psi)]|||
|400 mbar (6 psi)|PTP31B|0 (0)|0.4 (+6)|0.4 (6)|1 (15)|1.6 (24)|0 to 400 mbar (0 to 6 psi)|2F|
|1 bar (15 psi)|PTP31B|0 (0)|1 (+15)|0.4 (6)|2.7 (40.5)|4 (60)|0 to 1 bar (0 to 15 psi)|2H|
|2 bar (30 psi)|PTP31B|0 (0)|2 (+30)|0.4 (6)|6.7 (100.5)|10 (150)|0 to 2 bar (0 to 30 psi)|2K|
|4 bar (60 psi)|PTP31B|0 (0)|4 (+60)|0.8 (12)|10.7 (160.5)|16 (240)|0 to 4 bar (0 to 60 psi)|2M|
|10 bar (150 psi)|PTP31B|0 (0)|10 (+150)|2 (30)|25 (375)|40 (600)|0 to 10 bar (0 to 150 psi)|2P|
|40 bar (600 psi)|PTP31B|0 (0)|+40 (+600)|8 (120)|100 (1500)|160 (2400)|0 to 40 bar (0 to 600 psi)|2S|
|100 bar (1 500 psi)|PTP31B|0 (0)|+100 (+1500)|20 (300)|100 (1500)|160 (2400)|0 to 100 bar (0 to 1 500 psi)|2U|
|400 bar (6 000 psi)|PTP31B|0 (0)|+400 (+6000)|80 (1200)|400 (6000)|600 (9000)|0 to 400 bar (0 to 6 000 psi)|2W|



- 1) Highest turn down that can be set at the factory: 5:1. The turn down is preset and cannot be changed. 

- 2) Other measuring ranges (e.g.–1 to +5 bar (–15 to 75 psi)) can be ordered with customer-specific settings (see the Product Configurator, order code for "Calibration; Unit" option "U"). It is possible to invert the output signal (LRV = 20 mA; URV = 4 mA). Prerequisite: URV < LRV 

- 3) Product Configurator, order code for "Sensor range" 

_Maximum turn down which can be ordered for absolute pressure and gauge pressure sensors_ 

Ranges 0.5%/0.3%: TD 1:1 to TD 5:1 

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## Output 

||Output||
|---|---|---|
|Output signal|Name|Option1)|
||PNP switch output + 4 to 20 mA output (4-wire) IO-Link (SSP Ed.2 V1.1)|A|
||2 x PNP switch output + 4 to 20 mA output (4-wire) IO-Link (SSP Ed.2 V1.1)|B|
||PNP switch output (3-wire)|4|
||PNP switch output + 4 to 20 mA output (4-wire), IO-Link|7|
||2 x PNP switch output (4-wire), IO-Link|8|
||1)<br>Product Configurator, order code for "Output"||
|Range of adjustment|• Switch output<br>Switch point (SP): 0.5 to 100 % in increments of 0.1% (min. 1 mbar * (0.015 psi)) of the upper<br>range limit (URL) switchback point (RSP): 0 to 99.5% in increments of 0.1% (min. 1 mbar * (0.015<br>psi)) of the upper range limit (URL)<br>Minimum distance between SP and RSP: 0.5 % URL<br>• Analog output (if available)<br>Lower range value (LRV) and upper range value (URV) can be set anywhere within the sensor<br>range (LRL - URL). Turn down for analog output up to 5:1 of upper sensor limit (URL).<br>• Factory setting (if no customer-specific setting is ordered):<br>Switch point SP1: 90 %; switchback point RP1: 10 %;<br>Switch point SP2: 95 %; switchback point RP2: 15 %;<br>Analog output: LRV 0 %; URV 100 %<br>* For measuring ranges with a negative gauge pressure up to 4 bar (60 psi), the increment when<br>setting the switch point is min. 10 mbar (0.15 psi)||
|Relay switching capacity|• Switch state ON: Ia≤ 250 mA; switch state OFF: Ia≤1 mA<br>• Devices with IO-Link: Switch state ON1): Ia≤ 200 mA2); Switch state OFF: Ia≤100 μA<br>• Switch cycles: >10,000,000<br>• Voltage drop PNP: ≤2 V<br>• Overload protection: Automatic load testing of switching current;<br>• Max. capacitance load: 14 μF at max. supply voltage (without resistive load)<br>• Devices with IO-Link: Max. capacitance load: 1 μF at max. supply voltage (without resistive load)<br>• Max. cycle duration: 0.5 s; min. ton: 4 ms<br>• Max. cycle duration: 0.5 s; min. ton: 40 μs<br>• Periodic disconnection from protective circuit in the event of overcurrent (f = 2 Hz) and "F804"<br>displayed||
|Signal range 4 to 20 mA|3.8 to 20.5 mA||
|Load (for devices with analog<br>output)|In order to guarantee sufficient terminal voltage, a maximum load resistance RL(including line<br>resistance) must not be exceeded depending on the supply voltage UBof the supply unit.<br>The maximum load resistance depends on the terminal voltage and is calculated according to the<br>following formula:||



> 1) For switch outputs "2 x PNP" and "1 x PNP + 4 to 20 mA output", 100 mA can be guaranteed over the entire temperature range. For lower ambient temperatures, higher currents are possible but cannot be guaranteed. Typical value at 20 °C (68 °F) approx. 200 mA. For switch output "1 x PNP", 200 mA can be guaranteed over the entire temperature range. 

> 2) Deviating from the IO-Link standard, larger currents are supported. 

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**==> picture [242 x 137] intentionally omitted <==**

**----- Start of picture text -----**<br>
RLmax<br>[�]<br>1022<br>587 2 RLmax � U B � 6.5V<br>23mA<br>152<br>0 10 20 30 UB<br>1 [V]<br>**----- End of picture text -----**<br>


**==> picture [22 x 4] intentionally omitted <==**

**----- Start of picture text -----**<br>
  A0031107<br>**----- End of picture text -----**<br>


- _1 Power supply 10 to 30 V DC_ 

- _2 RLmax maximum load resistance_ 

- _UB Supply voltage_ 

## If load is too great: 

- failure current is output and "S803" displayed (output: MIN alarm current) 

- Periodic checking to establish if it is possible to quit fault state 

- In order to guarantee sufficient terminal voltage, a maximum load resistance RL (including line resistance) must not be exceeded depending on the supply voltage UB of the supply unit. 

Signal on alarm 4 to 20 mA 

The response of the output to error is regulated in accordance with NAMUR NE 43. 

The behavior of the current output in the event of errors is defined in the following parameters: 

- Alarm Current FCU "MIN": Lower alarm current (≤3.6 mA) (optional, see the following table) 

- Alarm Current FCU "MAX" (factory setting): Upper alarm current (≥21 mA) 

- Alarm Current FCU "HLD" (HOLD) (optional, see the following table): Last measured current value is held. When the device starts, the current output is set to "Lower alarm current" (≤3.6 mA). 

## Alarm current 

|Name|Option|
|---|---|
|Min. alarm current set|IA1)|
|1 low ≤3.6 mA<br>2 high ≥21 mA<br>3 last current value|U2)|



- 1) Product Configurator, order code for "Service" 2) Product Configurator order code for "Calibration/unit" 

Dead time, time constant 

Presentation of the dead time and the time constant: 

**==> picture [387 x 126] intentionally omitted <==**

**----- Start of picture text -----**<br>
I<br>100 %<br>90 %<br>63 %<br>t1 t2 t<br>t3<br>  A0019786<br>**----- End of picture text -----**<br>


Dynamic behavior 

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## Analog electronics 

|Dead time (t1) [ms]|Time constant (T63), t2[ms]|Time constant (T90), t3[ms]|
|---|---|---|
|7 ms|11 ms|16 ms|



Dynamic behavior of switch PNP switch output and 2 x PNP switch output: response time ≤20 ms output 

Damping Once the supply voltage has been applied, damping for the first measured value is at 0, i.e. the first measured value present always corresponds to the actual measured value (regardless of damping). A damping affects all outputs (output signal, display): • Via local display infinitely variable 0 to 999.9 s • Factory setting: 2.0 s 

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## Energy supply 

## L[WARNING] 

An incorrect connection compromises electrical safety! 

- ‣ A suitable circuit breaker must be provided for the device in accordance with IEC/EN 61010. 

- ‣ Protective circuits against reverse polarity, HF influences and overvoltage peaks are installed. 

- ‣ The device must be operated with a 630 mA fine-wire fuse (slow-blow). 

## Terminal assignment 

## _1 x PNP switch output R1 (not with IO-Link functionality)_ 

**==> picture [387 x 172] intentionally omitted <==**

**----- Start of picture text -----**<br>
M12 plug Valve plug Cable<br>0.63A 0.63A 1 0.63A<br>L+ 1 L+ L+<br>2 1 2a<br>3<br>3 4 R1 4 � R1<br>L– R1 3 L–<br>  A0029268 2 L– 4 �<br>  A0023271 2b (a)<br>  A0022801<br>1 brown = L+<br>2a black = switch output 1<br>2b white = not used<br>3 blue = L-<br>4 green/yellow = ground<br>(a) reference air hose<br>**----- End of picture text -----**<br>


## _2 x PNP switch output R1 and R2_ 

**==> picture [387 x 172] intentionally omitted <==**

**----- Start of picture text -----**<br>
M12 plug Valve plug Cable<br>0.63A - 1 0.63A<br>L+ L+<br>2a<br>2 1<br>2b<br>3 4 R1 R1<br>R2<br>L– 3<br>L–<br>R2 4<br>�<br>  A0023248 (a)<br>  A0023282<br>1 brown = L+<br>2a black = switch output 1<br>2b white = switch output 2<br>3 blue = L-<br>4 green/yellow = ground<br>(a) reference air hose<br>**----- End of picture text -----**<br>


## _IO-Link: 2 x PNP switch output R1 and R2_ 

**==> picture [387 x 107] intentionally omitted <==**

**----- Start of picture text -----**<br>
M12 plug<br>0.63 A<br>L+<br>2 1<br>IO-Link<br>Q2 C/Q 1<br>3 4<br>SIO<br>L–<br>R1<br>  A0036997<br>**----- End of picture text -----**<br>


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## _1 x PNP switch output R1 with additional analog output 4 to 20 mA (active)_ 

**==> picture [387 x 176] intentionally omitted <==**

**----- Start of picture text -----**<br>
M12 plug Valve plug Cable<br>0.63A - 1 0.63A<br>L+ L+<br>2a<br>2 1<br>2b<br>3 4 R1 R1<br>L–<br>3<br>L–<br>4<br>�<br>  A0023249 (a)<br>  A0030519<br>1 brown = L+<br>2a black = switch output 1<br>2b white = analog output 4 to 20 mA<br>3 blue = L-<br>4 green/yellow = ground<br>(a) reference air hose<br>**----- End of picture text -----**<br>


## _IO-Link: 1 x PNP switch output R1 with additional analog output 4 to 20 mA (active)_ 

**==> picture [387 x 89] intentionally omitted <==**

**----- Start of picture text -----**<br>
M12 plug<br>0.63 A<br>L+<br>2 1<br>IO-Link<br>C/Q<br>3 4<br>SIO<br>L–<br>  A0036998<br>**----- End of picture text -----**<br>


Supply voltage Supply voltage: 10 to 30 V DC at a DC power unit Supply voltage IO-Link: 10 to 30 V DC at a DC power unit IO-Link communication is guaranteed only if the supply voltage is at least 18 V. 

Current consumption and alarm signal 

|Intrinsic power consumption|Alarm current (for devices with analog output)1)|
|---|---|
|≤ 60 mA|≥21 mA (factory setting)|
|Devices with IO-Link: Maximum current consumption: ≤ 300 mA||
|1)<br>Setting min. alarm current ≤3.6mA can be ordered via the product order structure. Min. alarm current<br>≤3.6mA can be configured at the device or via IO-Link.||



Power supply fault 

- Behavior in the event of overvoltage (>30 V): The device works continuously up to 34 V DC without damage. If the supply voltage is exceeded, the specified characteristics are no longer guaranteed. 

- Behavior in the event of undervoltage: If the supply voltage falls below the minimum value, the device switches off in a defined manner. 

Electrical connection 

Degree of protection 

|Communication version|Connection|Degree of<br>protection|Option1)|
|---|---|---|---|
|Analog|Cable 5 m (16 ft)|IP66/67 NEMA<br>Type 4X enclosure|D|
||Cable 10 m (33 ft)|IP66/67 NEMA<br>Type 4X enclosure|E|
||Cable 25 m (82 ft)|IP66/67 NEMA<br>Type 4X enclosure|F|
||Valve plug ISO4400<br>M16|IP65 NEMA Type 4X<br>enclosure|U|



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Ceraphant PTC31B, PTP31B 

||Communication version|Connection|Degree of<br>protection|Option1)|
|---|---|---|---|---|
||Valve plug ISO4400<br>NPT ½||IP65 NEMA Type 4X<br>enclosure|V|
||Analog, IO-Link<br>M12 plug||IP65/67 NEMA<br>Type 4X enclosure|M|
||1)<br>Product Configurator, order code for "Electrical connection"||||
|Cable specification (analog)|For valve plug: < 1.5 mm2(16 AWG) and Ø 4.5 to 10 mm (0.18 to 0.39 in)||||
|Residual ripple|The device operates within the reference accuracy up to ±5 % of the residual ripple of the supply<br>voltage, within the permitted voltage range.||||
|Influence of power supply|≤0.005 % of URV/1 V||||
|Overvoltage protection|The device does not contain any special elements to protect against overvoltage ("wire to ground").<br>Nevertheless the requirements of the applicable EMC standard EN 61000-4-5 (testing voltage 1kV<br>EMC wire/ground) are met.||||



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## Performance characteristics of the ceramic process membrane 

||Performance characteristics of the ceramic process<br>membrane|Performance characteristics of the ceramic process<br>membrane|Performance characteristics of the ceramic process<br>membrane|Performance characteristics of the ceramic process<br>membrane|Performance characteristics of the ceramic process<br>membrane|Performance characteristics of the ceramic process<br>membrane|Performance characteristics of the ceramic process<br>membrane|Performance characteristics of the ceramic process<br>membrane|Performance characteristics of the ceramic process<br>membrane|
|---|---|---|---|---|---|---|---|---|---|
|Reference conditions|• As per IEC 60770<br>• Ambient temperature TA= constant, in the range of: +21 to +33 °C (+70 to +91 °F)<br>• Humidity φ = constant, in the range of 5 to 80 % rH<br>• Atmospheric pressure pA= constant, in the range of: 860 to 1 060 mbar (12.47 to 15.37 psi)<br>• Position of the measuring cell = constant, in the range of: horizontal ±1° (see also "Influence of<br>orientation" section)<br>• Zero based span<br>• Material of process membrane: Al2O3(aluminum-oxide ceramic, Ceraphire®)<br>• Supply voltage: 24 V DC ±3 V DC<br>• Load: 320 Ω (at 4 to 20 mA output)|||||||||
|Uncertainty of measurement<br>for small absolute pressure<br>ranges|The smallest extended uncertainty of measurement that can be delivered by our standards is<br>• in the range of 1 to 30 mbar (0.0145 to 0.435 psi): 0.4 % of reading<br>• in the range of < 1 mbar (0.0145 psi): 1 % of reading.|||||||||
|Influence of orientation|→   22|||||||||
|Resolution|Current output: min. 1.6 μA<br>Display: can be set (factory setting: presentation of the maximum accuracy of the transmitter)|||||||||
|Reference accuracy|The reference accuracy includes the non-linearity [DIN EN 61298-2 3.11] including the pressure<br>hysteresis [DIN EN 61298-23.13] and non-repeatability [DIN EN 61298-2 3.11] in accordance with<br>the limit point method as per [DIN EN 60770].|||||||||
||Device|||% of the calibrated span to the maximum turn down||||||
|||||Reference accuracy||Non-linearity1)|||Non-repeatability|
||PTC31B - standard|||±0.5||±0.1|||±0.1|
||PTC31B - platinum|||±0.3||±0.1|||±0.1|
||1)<br>The non-linearity for the 40 bar (600 psi) sensor can be up to ± 0.15% of the calibrated span up to the<br>maximum turn down.<br>Overview of the turn down ranges →   12<br>_Ordering information_|||||||||
||Name|||||||Option1)||
||Platinum (on request)|||||||D||
||Standard|||||||G||
||1)<br>Product Configurator, order code for "Reference accuracy"|||||||||
|Thermal change of the zero<br>output and the output span|Measuring cell|–20 to +85 °C (–4 to +185 °F)|||||–40 to –20 °C (–40 to –4 °F)<br>+85 to +100 °C (+185 to +212 °F)|||
|||% of the URL for TD 1:1||||||||
||<1 bar (15 psi)|<1|||||<1.2|||
||≥1 bar (15 psi)|<0.8|||||<1|||
|||||||||||
|Long-term stability|1 year||5 years||8 years|||||
|||% of the URL||||||||
||±0.2||±0.4||Under development|||||



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Switch-on time 

≤2 s 

For small measuring ranges, pay attention to the thermal compensation effects. 

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## Performance characteristics of metallic process membrane 

||Performance characteristics of metallic process<br>membrane|Performance characteristics of metallic process<br>membrane|Performance characteristics of metallic process<br>membrane|Performance characteristics of metallic process<br>membrane|Performance characteristics of metallic process<br>membrane|Performance characteristics of metallic process<br>membrane|Performance characteristics of metallic process<br>membrane|Performance characteristics of metallic process<br>membrane|Performance characteristics of metallic process<br>membrane|
|---|---|---|---|---|---|---|---|---|---|
|Reference conditions|• As per IEC 60770<br>• Ambient temperature TA= constant, in the range of: +21 to +33 °C (+70 to +91 °F)<br>• Humidity φ = constant, in the range of: 5 to 80 % rH<br>• Atmospheric pressure pA= constant, in the range of: 860 to 1 060 mbar (12.47 to 15.37 psi)<br>• Position of the measuring cell = constant, in the range of: horizontal ±1° (see also "Influence of<br>orientation" section)<br>• Zero based span<br>• Process membrane material: AISI 316L (1.4435)<br>• Filling oil: synthetic oil polyalphaolefin FDA 21 CFR 178.3620, NSF H1<br>• Supply voltage: 24 V DC ±3 V DC<br>• Load: 320 Ω (at 4 to 20 mA output)|||||||||
|Uncertainty of measurement<br>for small absolute pressure<br>ranges|The smallest extended uncertainty of measurement that can be delivered by our standards is<br>• in the range of 1 to 30 mbar (0.0145 to 0.435 psi): 0.4 % of reading<br>• in the range of < 1 mbar (0.0145 psi): 1 % of reading.|||||||||
|Influence of orientation|→   22|||||||||
|Resolution|Current output: min. 1.6 μA<br>Display: can be set (factory setting: presentation of the maximum accuracy of the transmitter)|||||||||
|Reference accuracy|The reference accuracy includes the non-linearity [DIN EN 61298-2 3.11] including the pressure<br>hysteresis [DIN EN 61298-23.13] and non-repeatability [DIN EN 61298-2 3.11] in accordance with<br>the limit point method as per [DIN EN 60770].|||||||||
||Device|||% of the calibrated span to the maximum turn down||||||
|||||Reference accuracy||Non-linearity|||Non-repeatability|
||PTP31B - standard|||±0.5||±0.1|||±0.1|
||PTP31B - platinum|||±0.3||±0.1|||±0.1|
||Overview of the turn down ranges →   12<br>_Ordering information_|||||||||
||Name|||||||Option1)||
||Platinum (on request)|||||||D||
||Standard|||||||G||
||1)<br>Product Configurator, order code for "Reference accuracy"|||||||||
|Thermal change of the zero<br>output and the output span|Measuring cell|–20 to +85 °C (–4 to +185 °F)|||||–40 to –20 °C (–40 to –4 °F)<br>+85 to +100 °C (+185 to +212 °F)|||
|||% of the calibrated span for TD 1:1||||||||
||<1 bar (15 psi)|<1|||||<1.2|||
||≥1 bar (15 psi)|<0.8|||||<1|||
|||||||||||
|Long-term stability|1 year||5 years||8 years|||||
|||% of the URL||||||||
||±0.2||±0.4||Under development|||||
|||||||||||
|Switch-on time|≤2 s|||||||||



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21 

Ceraphant PTC31B, PTP31B 

The following applies to IO-Link: For small measuring ranges, pay attention to the thermal compensation effects. 

## Mounting 

## Installation conditions 

- Moisture must not penetrate the housing when mounting the device, establishing the electrical connection and during operation. 

- Point the cable and connector downwards where possible to prevent moisture from entering (e.g. rain or condensation water). 

## Influence of orientation 

Any orientation is possible. However, the orientation may cause a zero point shift, i.e. the measured value does not show zero when the vessel is empty or partially full. 

|||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|**A**||||||||||||**B**|||||||||**C**|||||||||
|||||||||||||||||||||||||||||||
|||||||||||||||||||||||||||||||
|||||||||||||||||||||||||||||A0024708||



## _PTP31B_ 

|Process membrane axis is<br>horizontal (A)|Process membrane pointing<br>upwards (B)|Process membrane pointing<br>downwards (C)|
|---|---|---|
|Calibration position, no effect|Up to +4 mbar (+0.058 psi)|Up to –4 mbar (–0.058 psi)|



## _PTC31B_ 

|Type|Process membrane axis is<br>horizontal (A)|Process membrane pointing<br>upwards (B)|Process membrane pointing<br>downwards (C)|
|---|---|---|---|
|< 1 bar (15 psi)|Calibration position, no<br>effect|Up to<br>+0.3 mbar (+0.0044 psi)|Up to<br>–0.3 mbar (–0.0044 psi)|
|≥ 1 bar (15 psi)|Calibration position, no<br>effect|Up to +3 mbar (+0.0435 psi)|Up to –3 mbar (–0.0435 psi)|



A position-dependent zero point shift can be corrected on the device. 

## Mounting location 

## Pressure measurement 

## _Pressure measurement in gases_ 

Mount the device with shutoff device above the tapping point so that any condensate can flow into the process. 

**==> picture [387 x 116] intentionally omitted <==**

**----- Start of picture text -----**<br>
1<br>2<br>  A0025920<br>**----- End of picture text -----**<br>


- _1 Device 2 Shutoff device_ 

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22 

Ceraphant PTC31B, PTP31B 

## _Pressure measurement in vapors_ 

For pressure measurement in vapors, use a siphon. The siphon reduces the temperature to almost ambient temperature. Preferably mount the device with the shutoff device and siphon below the tapping point. 

Advantage: 

- defined water column causes only minor/negligible measuring errors and 

- only minor/negligible heat effects on the device. 

Mounting above the tapping point is also permitted. 

Note the max. permitted ambient temperature of the transmitter! 

Take the influence of the hydrostatic water column into consideration. 

**==> picture [55 x 128] intentionally omitted <==**

**==> picture [123 x 33] intentionally omitted <==**

**==> picture [173 x 114] intentionally omitted <==**

**----- Start of picture text -----**<br>
1<br>4<br>2<br>2<br>3<br>1<br>**----- End of picture text -----**<br>


**==> picture [22 x 4] intentionally omitted <==**

**----- Start of picture text -----**<br>
  A0025921<br>**----- End of picture text -----**<br>


- _1 Device_ 

- _2 Shutoff device 3 Siphon 4 Siphon_ 

## _Pressure measurement in liquids_ 

Mount the device with a shutoff device and siphon below or at the same height as the tapping point. Advantage: 

• defined water column causes only minor/negligible measuring errors and 

• air bubbles can be released to the process. 

Take the influence of the hydrostatic water column into consideration. 

**==> picture [387 x 190] intentionally omitted <==**

**----- Start of picture text -----**<br>
1<br>2<br>3<br>  A0025922<br>1 Device<br>2 Shutoff device<br>3 Siphon<br>**----- End of picture text -----**<br>


Level measurement 

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23 

Ceraphant PTC31B, PTP31B 

- Always install the device below the lowest measuring point. 

- Do not install the device at the following positions: 

- in the filling curtain 

- in the tank outlet 

- in the suction area of a pump 

- at a point in the tank which could be affected by pressure pulses from the agitator. 

- A functional test can be carried out more easily if you mount the device downstream from a shutoff device. 

**==> picture [165 x 129] intentionally omitted <==**

**==> picture [22 x 4] intentionally omitted <==**

**----- Start of picture text -----**<br>
  A0025923<br>**----- End of picture text -----**<br>


Mounting instructions for oxygen applications 

- Oxygen and other gases can react explosively to oils, grease and plastics, such that, among other things, the following precautions must be taken: 

- All components of the system, such as measuring devices, must be cleaned in accordance with the BAM requirements. 

- Depending on the materials used, a certain maximum temperature and a maximum pressure must not be exceeded for oxygen applications. 

- The following table lists devices (devices only, not accessories or enclosed accessories), which are suitable for gaseous oxygen applications. 

## _PTC31B_ 

|pmaxfor oxygen applications|Tmaxfor oxygen applications|Option1)|
|---|---|---|
|40 bar (600 psi)|–10 to +60 °C (+14 to +140 °F)|HB|



- 1) Product Configurator, order code for "Service" 

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Ceraphant PTC31B, PTP31B 

## Environment 

||Environment|Environment|Environment|Environment|Environment|Environment|
|---|---|---|---|---|---|---|
|Ambient temperature range|Ambient temperature range3)<br>• –20 to +70 °C (–4 to +158 °F)<br>• IO-Link: –20 to +70 °C (–4 to +158 °F)<br>(in the range of the temperature limits with restrictions in optical properties, such as display speed<br>and contrast)||||||
|Storage temperature range|–40 to +85 °C (–40 to +185 °F)||||||
|Climate class|Climate class|Note|||||
||Class 3K5|Air temperature: –5 to +45 °C (+23 to +113 °F),<br>relative humidity: 4 to 95 %<br>satisfied according to IEC 721-3-3 (condensation not possible)|||||
||||||||
|Degree of protection|Communication version|||Connection|Degree of<br>protection|Option1)|
||Analog|||Cable 5 m (16 ft)|IP66/67 NEMA<br>Type 4X enclosure|D|
|||||Cable 10 m (33 ft)|IP66/67 NEMA<br>Type 4X enclosure|E|
|||||Cable 25 m (82 ft)|IP66/67 NEMA<br>Type 4X enclosure|F|
|||||Valve plug ISO4400<br>M16|IP65 NEMA Type 4X<br>enclosure|U|
|||||Valve plug ISO4400<br>NPT ½|IP65 NEMA Type 4X<br>enclosure|V|
||Analog, IO-Link|||M12 plug|IP65/67 NEMA<br>Type 4X enclosure|M|
||1)<br>Product Configurator, order code for "Electrical connection"||||||
|Vibration resistance|Test standard||Vibration resistance||||
||IEC 60068-2-64:2008||Guaranteed for 5 to 2000Hz: 0.05g2/Hz||||
||||||||
|Electromagnetic<br>compatibility|• Interference emission as per EN 61326-1 equipment B<br>• Interference immunity as per EN 61326-1 (industrial environment)<br>• Devices with IO-Link: For intended use, the switch output can switch to the communication mode<br>for 0.2 s in the event of transient faults.||||||



- NAMUR recommendation EMC (NE 21) (not for devices with IO-Link) 

- Maximum deviation: 1.5% with TD 1:1 

For more details, please refer to the Declaration of Conformity. 

3) Exception: the following cable is designed for an ambient temperature range of –25 to +70 °C (–13 to +158 °F): Product Configurator, order code for "Accessory enclosed" option "RZ". 

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25 

Ceraphant PTC31B, PTP31B 

## Process 

Process temperature range for devices with ceramic process membrane 

- –25 to +100 °C (–13 to +212 °F) 

- For saturated steam applications, use a device with a metallic process membrane, or provide a siphon for temperature isolation when installing. 

- Observe the process temperature range of the seal. See also the following table. 

|Seal|Notes|Process temperature range|Option|
|---|---|---|---|
|FKM|-|–20 to +100 °C (–4 to +212 °F)|A1)|
|FKM|Cleaned for O2application|–10 to +60 °C (+14 to +140 °F)|A1)and HB2)|
|EPDM 70|-|–25 to +100 °C (–13 to +212 °F)|J1)|



- 1) Product Configurator, order code for "Seal" 

- 2) Product Configurator, order code for "Service" 

## Applications with jumps in temperature 

Frequent extreme changes in temperatures can temporarily cause measuring errors. Temperature compensation occurs after a few minutes. Internal temperature compensation occurs more quickly the smaller the change in temperature and the longer the time interval involved. 

For further information please contact your local Endress+Hauser Sales Center. 

Process temperature range for devices with metallic process membrane 

## –40 to +100 °C (–40 to +212 °F) 

## Applications with jumps in temperature 

Frequent extreme changes in temperatures can temporarily cause measuring errors. Internal temperature compensation occurs more quickly the smaller the change in temperature and the longer the time interval involved. 

For further information please contact your local Endress+Hauser Sales Center. 

## Pressure specifications 

## L[WARNING] 

## The maximum pressure for the measuring device depends on the lowest-rated element with regard to pressure. 

- ‣ For pressure specifications, see the "Measuring range" section and the "Mechanical construction" section. 

- ‣ The Pressure Equipment Directive (2014/68/EU) uses the abbreviation "PS". The abbreviation "PS" corresponds to the MWP (maximum working pressure) of the measuring device. 

- ‣ MWP (maximum working pressure): The MWP (maximum working pressure) is specified on the nameplate. This value is based on a reference temperature of +20 °C (+68 °F) and may be applied to the device for an unlimited period of time. Observe the temperature dependency of the MWP. 

- ‣ OPL (over pressure limit): The test pressure corresponds to the over pressure limit of the sensor and may only be applied temporarily to ensure that the measurement is within the specifications and no permanent damage develops. In the case of sensor range and process connections where the over pressure limit (OPL) of the process connection is smaller than the nominal value of the sensor, the device is set at the factory, at the very maximum, to the OPL value of the process connection. If you want to use the entire sensor range, select a process connection with a higher OPL value. 

- ‣ Devices with ceramic process isolating diaphragm: avoid steam hammering! Steam hammering can cause zero point drifts. Recommendation: Residue (water droplets or condensation) may remain on the process isolating diaphragm following CIP cleaning and can result in local steam hammering the next time steam cleaning takes place. In practice, drying the process isolating diaphragm (e.g. by blowing) has proved to prevent steam hammering. 

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26 

Ceraphant PTC31B, PTP31B 

## Mechanical construction 

For the dimensions, see the Product Configurator: www.endress.com 

Search for product → click "Configuration" to the right of the product image → after configuration click "CAD" 

The following dimensions are rounded values. For this reason, they may deviate slightly from the dimensions given on www.endress.com. 

## Design, dimensions 

## Device height 

The device height is calculated from 

- the height of the electrical connection 

- the height of the housing and 

- the height of the individual process connection. 

The individual heights of the components are listed in the following sections. To calculate the device height simply add up the individual heights of the components. Where applicable also take into consideration the installation distance (space that is used to install the device). You can use the following table for this purpose: 

|Section|Page|Height|Example|
|---|---|---|---|
|Electrical connection|→   27|(A)|**A**<br>**B**<br>**C**<br>**D**<br>A0022828<br>**A**<br>**B**<br>**C**<br>**D**<br>A0027269|
|Housing height|→   28|(B)||
|Process connection height|→   29<br>→   32|(C)||
|Installation distance|-|(D)||



## Electrical connection 

**==> picture [517 x 133] intentionally omitted <==**

**----- Start of picture text -----**<br>
A B 26 (1.02) C 36 (1.42)<br>r �120 (4.72)<br>ø41 (1.61)<br>ø41 (1.61) ø41 (1.61)<br>  A0022842<br>  A0022840   A0022836<br>Engineering unit mm (in)<br>M12x1<br>56 (2.2)<br>56 (2.2) 56 (2.2)<br>35 (1.38)<br>**----- End of picture text -----**<br>


|Item|Designation|Material|Weight kg (lbs)|Option1)|
|---|---|---|---|---|
|A|M12 plug IP65/67<br>(Additional dimensions →   44)|Housing cap made of plastic|0.012 (0.03)|M<br>Plug connector with cable<br>can be ordered as an accessory →   44|
|B|Cable 5 m (16 ft)|PUR (UL94V0)|0.280 (0.62)|D|
|B|Cable 10 m (33 ft)|PUR (UL94V0)|0.570 (1.26)|E|
|B|Cable 25 m (82 ft)|PUR (UL94V0)|1.400 (3.09)|F|



Endress+Hauser 

27 

Ceraphant PTC31B, PTP31B 

|Item|Designation|Material|Weight kg (lbs)|Option1)|
|---|---|---|---|---|
|C|M16 valve plug|Plastic PPSU|0.060 (0.14)|U|
|C|NPT ½ valve plug|Plastic PPSU|0.060 (0.14)|V|



1) Product Configurator, order code for "Electrical connection" 

|Housing|22 (0.87)<br>**A**<br>ø40.5 (1.59)<br>A0022244|
|---|---|
||Engineering unit mm (in)|
|||
||27 (1.06)<br>**B**<br>ø31.5 (1.24)<br>A0027287|
||Engineering unit mm (in)|



|Position<br>|Device<br>|Material|Weight kg (lbs)|
|---|---|---|---|
|A<br>|PTC31B<br>S|tainless steel 316L|0.150 (0.33)|
|B (up to 100 bar (1 500 psi))<br>|PTP31B<br>S|tainless steel 316L|0.090 (0.20)|



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28 

Ceraphant PTC31B, PTP31B 

|Process connections with<br>internal, ceramic process<br>membrane|Thread ISO 228 G|Thread ISO 228 G|
|---|---|---|
||A<br>13 (0.51)<br>45.5 (1.79)<br>2 (0.08)<br>ø3(0.12)<br>ø5 (0.2)<br>ø9.5(0.37)<br>G ¼"A<br>2 (0.08)<br>41<br>A0022236|B<br>ø23 (0.91)<br>46 (1.81)<br>15.5 (0.61)<br>13 (0.51)<br>G ¼"<br>41<br>A0022237|
||C<br>3 (0.12)<br>ø17.5 (0.69)<br>ø6 (0.24)<br>ø3 (0.12)<br>G ½" A<br>53.5 (2.11)<br>20 (0.79)<br>3 (0.12)<br>41<br>A0022238|D<br>ø17.5 (0.69)<br>G ½" A<br>23 (0.91)<br>53.5 (2.11)<br>3(0.12)<br>ø11.4 (0.45)<br>41<br>A0022239|
||Engineering unit mm (in)||



|Device|Position|Designation|Material|Weight|Option1)|
|---|---|---|---|---|---|
|||||kg (lbs)||
|PTC31B|A|Thread ISO 228 G ¼" A, EN 837|316L|0.160 (0.35)|WTJ|
|PTC31B|B|Thread ISO 228 G ¼" (female)|316L|0.180 (0.40)|WAJ|
|PTC31B|C|Thread ISO 228 G ½" A, EN 837|316L|0.180 (0.40)|WBJ|
|PTC31B|D|Thread ISO 228 G ½" A, bore11.4 mm (0.45 in)|316L|0.180 (0.40)|WWJ|



1) Product Configurator, order code for "Process connection" 

Endress+Hauser 

29 

Ceraphant PTC31B, PTP31B 

**==> picture [517 x 403] intentionally omitted <==**

**----- Start of picture text -----**<br>
Process connections with Thread ASME<br>internal, ceramic process<br>membrane A B<br>41 41<br>ø21.4 (0.84)<br>ø3 (0.12)<br>NPT ¼"<br>NPT ¼"<br>  A0022242 NPT ½"<br>  A0022241<br>C<br>41<br>ø21.4 (0.84)<br>ø11.4 (0.45)<br>ø17.3 (0.68)<br>NPT ½"<br>  A0022240<br>Engineering unit mm (in)<br>43.5 (1.71)<br>55.5 (2.19)<br>25 (0.98)<br>13 (0.51)<br>55.5 (2.19)<br>25 (0.98)<br>**----- End of picture text -----**<br>


|Device|Item|Designation|Material|Weight<br>|Approval|Option1)|
|---|---|---|---|---|---|---|
|||||kg (lbs)|||
|PTC31B|A|ASME ¼" MNPT, bore 3 mm (0.12 in)|316L|0.160 (0.35)<br>|CRN|VUJ|
|PTC31B|B|ASME ½" MNPT, ¼" FNPT (female)|316L|0.190 (0.42)<br>|CRN|VXJ|
|PTC31B|C|ASME ½" MNPT, bore 11.4 mm (0.45 in)|316L|0.190 (0.42)<br>|CRN|VWJ|



1) Product Configurator, order code for "Process connection" 

Endress+Hauser 

30 

Ceraphant PTC31B, PTP31B 

**==> picture [517 x 238] intentionally omitted <==**

**----- Start of picture text -----**<br>
Process connections with Thread DIN13<br>internal, ceramic process<br>membrane<br>41<br>ø18 (0.71)<br>ø3 (0.12)<br>ø6 (0.24)<br>ø17.5 (0.69)<br>M20x1.5<br>  A0022234<br>Engineering unit mm (in)<br>20 (0.79)<br>53.5 (2.11)<br>3 (0.12)<br>)<br>12<br>(0.<br>3<br>**----- End of picture text -----**<br>


|Device|Designation|Material|Weight|Option1)|
|---|---|---|---|---|
||||kg (lbs)||
|PTC31B|DIN 13 M20 x 1.5, EN 837, bore 3 mm (0.12 in)|316L|0.180 (0.40)|X4J|



1) Product Configurator, order code for "Process connection" 

Process connections with Thread JIS B0203 internal, ceramic process membrane 

**==> picture [271 x 180] intentionally omitted <==**

**----- Start of picture text -----**<br>
41<br>ø21.4 (0.84)<br>ø11.4 (0.45)<br>ø17.3 (0.68)<br>R ½"<br>  A0022235<br>55.5 (2.19)<br>23 (0.91)<br>**----- End of picture text -----**<br>


Engineering unit mm (in) 

|Device|Designation<br>|Material|Weight|Option1)|
|---|---|---|---|---|
||||kg (lbs)||
|PTC31B|JIS B0203 R 1/2 (male)<br>|316L|0.180 (0.40)|ZJJ|



1) Product Configurator, order code for "Process connection" 

Endress+Hauser 

31 

Ceraphant PTC31B, PTP31B 

Process connections with Thread ISO 228 G internal, metal process membrane 

**==> picture [387 x 385] intentionally omitted <==**

**----- Start of picture text -----**<br>
A B<br>SW/AF SW/AF<br>ø3 (0.12) G ¼"<br>ø5 (0.2) ø23 (0.91)<br>ø9.5 (0.37)<br>G ¼" A   A0021960<br>  A0021959<br>C D<br>SW/AF SW/AF<br>ø18 (0.71)<br>ø11.4 (0.45)<br>ø3 (0.12)<br>ø17.5 (0.69)<br>ø6 (0.24)<br>G ½" A<br>ø17.5 (0.69)<br>  A0021963<br>G ½" A<br>  A0021962<br>Engineering unit mm (in)<br>C C<br>13 (0.51)<br>2 (0.08)<br>13 (0.51) 15.5 (0.61)<br>20 (0.79) C<br>2 (0.08)<br>20 (0.79)<br>C<br>)<br>0.12<br>(<br>3<br>3 (0.12) 3 (0.12)<br>**----- End of picture text -----**<br>


|Position|Device|Description<br>|Materi|al Nominal value<br>to 100 bar (1 500 psi)|al Nominal value<br>to 100 bar (1 500 psi)|al Nominal value<br>to 100 bar (1 500 psi)|Nominal value<br>400 bar (6 000 psi)|Nominal value<br>400 bar (6 000 psi)|Nominal value<br>400 bar (6 000 psi)|Option1)|
|---|---|---|---|---|---|---|---|---|---|---|
|||||Weight<br>kg (lbs)|Height C|SW/<br>AF|Weight|Height C|SW/<br>AF||
||||||||kg (lbs)||||
|A|PTP31B|Thread ISO 228 G ¼" A, EN 837<br>|316L|0.200 (0.44)|57 (2.24)|32|0.240 (0.53|) 69 (2.72)|27|WTJ|
|B|PTP31B|Thread ISO 228 G ¼" (female)<br>|316L|0.220 (0.49)|57 (2.24)|32|0.260 (0.57|) 69 (2.72)|27|WAJ|
|C|PTP31B|Thread ISO 228 G ½" A, EN 837<br>|316L|0.220 (0.49)|65 (2.56)|32|0.270 (0.60|) 77 (3.03)|27|WBJ|
|D|PTP31B|Thread ISO 228 G ½" A,<br>bore11.4 mm (0.45 in)<br>|316L|0.220 (0.49)|62 (2.44)|32|0.260 (0.57|) 74 (2.91)|27|WWJ|



1) Product Configurator, order code for "Process connection" 

Endress+Hauser 

32 

Ceraphant PTC31B, PTP31B 

**==> picture [517 x 401] intentionally omitted <==**

**----- Start of picture text -----**<br>
Process connections with Thread ASME<br>internal, metal process<br>membrane A B<br>SW/AF SW/AF<br>ø21.4 (0.84)<br>ø3 (0.12)<br>NPT ¼"<br>ø13.7 (0.54) NPT ¼"<br>  A0021965 ø17.3 (0.68)<br>NPT ½"<br>  A0021964<br>C<br>SW/AF<br>ø21.4 (0.84)<br>ø11.4 (0.45)<br>ø17.3 (0.68)<br>NPT ½"<br>  A0021966<br>Engineering unit mm (in)<br>C<br>C<br>25 (0.98)<br>12 (0.47) 13 (0.51)<br>15.5 (0.61)<br>C<br>25 (0.98)<br>19.5 (0.77)<br>**----- End of picture text -----**<br>


|Item|Device|Designation|Material|Nominal value<br>Up to 100 bar (1 500 psi)|Nominal value<br>Up to 100 bar (1 500 psi)|Nominal value<br>Up to 100 bar (1 500 psi)|Nominal value<br>400 bar (6 000 psi)|Nominal value<br>400 bar (6 000 psi)|Nominal value<br>400 bar (6 000 psi)|Approval|Option1)|
|---|---|---|---|---|---|---|---|---|---|---|---|
|||||Weight|Height C|SW/<br>AF|Weight|Height C|<br>SW/<br>AF|||
|||||kg (lbs)|||kg (lbs)|||||
|A|PTP31B|ASME ¼" MNPT, bore<br>3 mm (0.12 in)|316L|0.200 (0.44)|55 (2.17)|32|0.240 (0.53)|67 (2.64|) 27|CRN|VUJ|
|B|PTP31B|ASME ½" MNPT, ¼" FNPT<br>(female)|316L|0.230 (0.51)|67 (2.64)|32|0.260 (0.57)|79 (3.11|) 27|CRN|VXJ|
|C|PTP31B|ASME ½" MNPT, bore<br>11.4 mm (0.45 in)|316L|0.230 (0.51)|67 (2.67)|32|0.270 (0.60)|79 (3.11|) 27|CRN|VWJ|



1) Product Configurator, order code for "Process connection" 

Endress+Hauser 

33 

Ceraphant PTC31B, PTP31B 

Process connections with Thread DIN13 internal, metal process membrane 

**==> picture [272 x 183] intentionally omitted <==**

**----- Start of picture text -----**<br>
SW/AF<br>ø3 (0.12)<br>ø6 (0.24)<br>ø17.5 (0.69)<br>M20x1.5<br>  A0021968<br>20 (0.79)<br>C<br>3 (0.12)<br>)<br>12<br>(0.<br>3<br>**----- End of picture text -----**<br>


Engineering unit mm (in) 

|Description|Device|Material|Nominal value<br>to 100 bar (1 500 psi)|Nominal value<br>to 100 bar (1 500 psi)|Nominal value<br>to 100 bar (1 500 psi)|Nominal value<br>400 bar (6 000 psi)|Nominal value<br>400 bar (6 000 psi)|Nominal value<br>400 bar (6 000 psi)|Option1)|
|---|---|---|---|---|---|---|---|---|---|
||||Weight<br>H<br>kg (lbs)|eight C<br><br>|SW/<br>AF|Weight|Height C|SW/<br>AF||
|||||||kg (lbs)||||
|DIN 13 M20 x 1.5, EN 837, bore 3 mm (0.12 in)|PTP31B|316L|0.220 (0.49)<br>6|5 (2.56)<br>|32|0.260 (0.57)|77 (3.03)|27|X4J|



- 1) Product Configurator, order code for "Process connection" 

Process connections with Thread JIS B0203 internal, metal process membrane 

**==> picture [387 x 192] intentionally omitted <==**

**----- Start of picture text -----**<br>
SW/AF<br>ø21.4 (0.84)<br>ø11.4 (0.45)<br>ø17.3 (0.68)<br>R ½"<br>  A0021970<br>Engineering unit mm (in). Diameter of process isolating diaphragm: 17.2 mm (0.68 in)<br>C<br>23 (0.91)<br>16.5 (0.65)<br>**----- End of picture text -----**<br>


|Description|Device|Material|Nominal value<br>to 100 bar (1 500 psi)|Nominal value<br>to 100 bar (1 500 psi)|Nominal value<br>400 bar (6 000 psi)|Nominal value<br>400 bar (6 000 psi)|Nominal value<br>400 bar (6 000 psi)|Option1)|
|---|---|---|---|---|---|---|---|---|
||||Weight|Height C<br><br>|SW/<br>AF<br>Weight<br>kg (lbs)|Height C|SW/<br>AF||
||||kg (lbs)||||||
|JIS B0203 R ½" (male)|PTP31B|316L|0.230 (0.51)|65 (2.56)<br>|32<br>0.260 (0.57)|77 (3.03)|27|ZJJ|



- 1) Product Configurator, order code for "Process connection" 

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Ceraphant PTC31B, PTP31B 

Process connections with flush mount, metal process Thread ISO 228 G membrane 

**==> picture [380 x 151] intentionally omitted <==**

**----- Start of picture text -----**<br>
SW/AF<br>1<br>G ½" A<br>ø18 (0.71)<br>ø26 (1.02)<br>ø31.5 (1.24)<br>ET I<br>  A0021971<br>1 FKM form seal, pre-mounted<br>C<br>3.5 (0.14) 7 (0.28)<br>2 (0.08) 14 (0.55)<br>**----- End of picture text -----**<br>


Engineering unit mm (in). Diameter of process isolating diaphragm: 17.2 mm (0.68 in) 

**==> picture [511 x 323] intentionally omitted <==**

**----- Start of picture text -----**<br>
|||||||||||
|---|---|---|---|---|---|---|---|---|---|
|Device|Designation|Material|Nominal value|Nominal value|Option|[ 1)]|
|to 100 bar (1|500 psi)|400 bar (6|000 psi)|
|Weight|Height C|SW/|Weight|Height C|SW/|
|AF|AF|
|kg (lbs)|kg (lbs)|
|PTP31B|Thread ISO 228 G ½" A|316L|0.140 (0.31)|41 (1.61)|32|0.120 (0.26)|35 (1.38)|32|WJJ|
|DIN3852, shape E|
|Product Configurator, order code for "Process connection"|
|32|
|1|
|G ½" A|
|2|ø18 (0.71)|
|ø26 (1.02)|
|ø31.5 (1.24)|
|A0022802|
|1|FKM form seal, pre-mounted|
|2|FKM O-ring, pre-mounted|

**----- End of picture text -----**<br>


1) Product Configurator, order code for "Process connection" 

Engineering unit mm (in). Diameter of process isolating diaphragm: 17.2 mm (0.68 in) 

Device[ 1)] Designation Material Weight Option[ 2)] kg (lbs) PTP31B Thread ISO 228 G ½" A 316L 0.150 (0.33) WUJ O-ring seal, flush-mounted ~~a~~ 1) Suitable for weld-in adapter 52002643 and 52010172 2) Product Configurator, order code for "Process connection" 

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## Materials in contact with process 

## NOTICE 

- ‣ Device components in contact with the process are listed in the "Mechanical construction" and "Ordering information" sections. 

## TSE Certificate of Suitability 

The following applies to all device components in contact with the process: 

- They do not contain any materials derived from animals. 

- No additives or operating materials derived from animals are used in production or processing. 

## Process connections 

Endress+Hauser supplies a threaded connection made of stainless steel in accordance with AISI 316L (DIN/ EN material number 1.4404 or 1.4435). With regard to their stability-temperature property, the materials 1.4404 and 1.4435 are grouped together under 13E0 in EN 1092-1: 2001 Tab. 18. The chemical composition of the two materials can be identical. 

## Process isolating diaphragm 

|Description|Material|
|---|---|
|Ceramic process<br>isolating diaphragm|Al2O3aluminum-oxide ceramic, Ceraphire®FDA, ultrapure 99.9 % (see also<br>www.endress.com/ceraphire)<br>The US Food & Drug Administration (FDA) has no objections to the use of ceramics<br>made from aluminum oxide as a surface material in contact with foodstuffs. This<br>declaration is based on the FDA certificates of our ceramic suppliers.|
|Metal process<br>isolating diaphragm|AISI 316L (DIN/EN material number 1.4435)|



## Seals 

See the specific process connection. 

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Ceraphant PTC31B, PTP31B 

**==> picture [517 x 294] intentionally omitted <==**

**----- Start of picture text -----**<br>
Materials not in contact with Housing<br>process<br>1 2 3<br>  A0022245<br>4<br>5 6 7<br>  A0025965<br>4<br>5 6 7<br>  A0027292<br>**----- End of picture text -----**<br>


|Item number|Component|Material|
|---|---|---|
|1|Housing with valve plug<br>connection|• Seal: NBR<br>• Plug: PA<br>• Screw: V2A<br>• Adapter plate: PBT/PC<br>• Housing: PBT/PC|
|2|Housing prepared for M12<br>plug connection|• Adapter plate: PBT/PC<br>• For other materials, see the "Accessories" section<br>• Housing: PBT/PC|
|3|Housing with cable connection|• Pressure screw: PVDF<br>• Seal: TPE-V<br>• Cable: PUR (UL 94 V0)<br>• Adapter plate: PBT/PC<br>• Housing: PBT/PC|
|4|Design element|PBT/PC|
|5|Nameplates|Plastic foil (attached to housing) or directly lasered onto the<br>housing|
|6|Housing|316L (1.4404)|
|7|Pressure compensation<br>element|PBT/PC|



## Filling oil 

|Device|Filling oil|
|---|---|
|PTP31B|Synthetic oil polyalphaolefin FDA 21 CFR 178.3620, NSF H1|



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Ceraphant PTC31B, PTP31B 

## Cleaning 

|Device|Description|Option1)|
|---|---|---|
|PTC31B<br>PTP31B|Cleaned from oil+grease|HA|
|PTC31B|Cleaned for oxygen service|HB|



1) Product Configurator, order code for "Service" 

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## Operability 

IO-Link Operating concept for devices with IO-Link _Operator-oriented menu structure for user-specific tasks Reliable operation_ Operation in the following languages: Via IO-Link: English _Efficient diagnostics increase measurement reliability_ 

- Remedial measures 

- • Simulation options IO-Link information 

IO-Link is a point-to-point connection for communication between the measuring device and an IOLink master. The measuring device features an IO-Link communication interface type 2 with a second IO function on pin 4. This requires an IO-Link-compatible assembly (IO-Link master) for operation. The IO-Link communication interface enables direct access to the process and diagnostic data. It also provides the option of configuring the measuring device while in operation. Physical layer, the measuring device supports the following features: 

- IO-Link specification: Version 1.1 

- • IO-Link Smart Sensor Profile 2nd Edition • SIO mode: Yes • Speed: COM2; 38.4 kBaud • Minimum cycle time: 2.5 msec. 

- Process data width: 

- Without Smart Sensor Profile: 32 bit 

- With Smart Sensor Profile: 48 bit (float32 + 14-bit vendor spec. + 2 bits SSC) 

- • IO-Link data storage: Yes 

- Block configuration: Yes 

## IO-Link download 

http://www.endress.com/download 

- Select "Software" as the media type. 

- Select "Device Driver" as the software type. Select IO-Link (IODD). 

- In the "Text Search" field enter the device name. 

- https://ioddfinder.io-link.com/ Search by 

- Manufacturer 

- • Article number • Product type 

Operation with local display Overview 

A 1-line liquid crystal display (LCD) is used for display and operation. The local display shows measured values, fault messages and information messages and therefore supports the user through each operating step. 

During measuring operation, the display shows measured values, fault messages and notice messages. In addition, it is possible to switch to menu mode via the operating keys. 

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**==> picture [387 x 177] intentionally omitted <==**

**----- Start of picture text -----**<br>
4 5<br>3<br>2<br>E<br>1<br>  A0022121<br>1 Operating keys<br>2 Status LED<br>3 Switch output LEDs<br>4 Measured value<br>5 Unit<br>**----- End of picture text -----**<br>


The second switch output is not used for the device version with current output. 

## Functions: 

- 4-digit measured value display and decimal point 

- Simple and complete menu guidance due to breakdown of parameters into several levels and groups 

- Possibility to configure the display in accordance with individual wishes and requirements 

- Comprehensive diagnostic functions (fault and warning message, peak-hold indicators, etc.) 

- Quick and safe commissioning 

- The device also signals the status via LEDs. 

## Information on the operational states 

|Operational states|Function of status-LED and onsite display|
|---|---|
|Operation|• Status LED is lit green<br>• LEDs of switch output 1 and switch output 2 signal the status of each switch output<br>• No activity of LED for switch output 2 if current output is active<br>• White background lighting|
|Problem|• Status LED lit steady red<br>• Red display background<br>• LED of switch output 1 and switch output 2 off (switch output is deactivated)|
|Warning|• Status LED flashing red<br>• White display background<br>• LEDs of switch output 1 and switch output 2 signal the status of each switch output|
|For Device Search|• The green LED is lit (= operational) on the device and starts to flash with increased<br>luminosity. Flash frequency<br>• LEDs of switch output 1 and switch output 2 signal the status of each switch output<br>• Display background depending on the device status|
|IO-Link<br>communication|• Status LED flashes green as per IO-Link specification (regardless of measuring<br>operation, error or warning). Flash frequency<br>• Display background depending on the device status<br>• The state of switch output 1 is also indicated via the LED of switch output 1 at the same<br>time as the process data are displayed|



Device Search (IO-Link) 

The Device Search parameter is used to uniquely identify the device during installation. 

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## Certificates and approvals 

||Certificates and approvals|
|---|---|
|CE mark|The device meets the legal requirements of the relevant EC directives. Endress+Hauser confirms that|
||the device has been successfully tested by applying the CE mark.|
|RoHS|The measuring system complies with the substance restrictions of the Restriction on Hazardous|
||Substances Directive 2011/65/EU (RoHS 2).|
|RCM marking|The supplied product or measuring system meets the ACMA (Australian Communications and Media|
||Authority) requirements for network integrity, interoperability, performance characteristics as well|
||as health and safety regulations. Here, especially the regulatory arrangements for electromagnetic|
||compatibility are met. The products bear the RCM marking on the nameplate.|



**==> picture [47 x 36] intentionally omitted <==**

A0029561 Pressure Equipment Pressure equipment with permitted pressure ≤ 200 bar (2 900 psi) Directive 2014/68/EU (PED) Pressure equipment (maximum allowable pressure PS ≤ 200 bar (2 900 psi)) can be classified as pressure accessories in accordance with the Pressure Equipment Directive 2014/68/EU. If the maximum allowable pressure is ≤ 200 bar (2 900 psi) and the pressurized volume of the pressure equipment is ≤ 0.1 l, the pressure equipment is subject to the Pressure Equipment Directive (see Pressure Equipment Directive 2014/68/EU, Article 4, point 3). The Pressure Equipment Directive only requires that the pressure equipment shall be designed and manufactured in accordance with the "sound engineering practice of a Member State". 

## _Reasons:_ 

- Pressure Equipment Directive (PED) 2014/68/EU Article 4, point 3 

- Pressure equipment directive 2014/68/EU, Commission's Working Group "Pressure", Guideline A-05 + A-06 

## _Note:_ 

A partial examination shall be performed for pressure instruments that are part of safety equipment for the protection of a pipe or vessel from exceeding allowable limits (safety accessory in accordance with Pressure Equipment Directive 2014/68/EU, Article 2, point 4). 

## Pressure equipment with allowable pressure > 200 bar (2 900 psi) 

Pressure equipment designated for application in every process fluid having a pressurized volume of <0.1 l and a max. allowable pressure PS > 200 bar (2 900 psi) must satisfy the essential safety requirements set out in Annex I of the Pressure Equipment Directive 2014/68/EU. According to Article 13 pressure equipment shall be classified by category in accordance with Annex II. Taking into account the low volume specified above, the pressure instruments can be categorized as category I pressure equipment. They must then bear a CE mark. 

## _Reasons:_ 

- Pressure Equipment Directive 2014/68/EU, Article 13, Annex II 

- Pressure equipment directive 2014/68/EU, Commission's Working Group "Pressure", Guideline A-05 

## _Note:_ 

A partial examination shall be performed for pressure instruments that are part of safety equipment for the protection of a pipe or vessel from exceeding allowable limits (safety accessory in accordance with Pressure Equipment Directive 2014/68/EU, Article 2, point 4). 

## _The following also applies:_ 

PTP31B with threaded connection and internal process membrane PN > 200 : 

Suitable for stable gases in group 1, category I, module A 

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## Other standards and guidelines 

The applicable European guidelines and standards can be found in the relevant EU Declarations of Conformity. The following were also applied: 

## DIN EN 60770 (IEC 60770): 

Transmitters for use in industrial process control systems Part 1: Methods for performance evaluation 

Methods for evaluating the performance of transmitters for control and regulation in industrial process control systems. 

## DIN 16086: 

Electrical pressure measuring instruments, pressure sensors, pressure transmitters, pressure measuring instruments, concepts, specifications on data sheets 

Procedure for writing specifications in data sheets for electrical pressure measuring instruments, pressure sensors and pressure transmitters. 

## EN 61326-X: 

EMC product family standard for electrical equipment for measurement, control and laboratory use. 

## EN 60529: 

Degrees of protection provided by enclosures (IP code) 

NAMUR - User association of automation technology in process industries. 

NE21 - Electromagnetic Compatibility (EMC) of Industrial Process and Laboratory Control Equipment. 

NE43 - Standardization of the Signal Level for the Failure Information of Digital Transmitters. 

NE44 - Standardization of Status Indicators on PCT Instruments with the Help of Light Emitting Diodes 

NE53 - Software of Field Devices and Signal-processing Devices with Digital Electronics 

NE107 - Self-monitoring and Diagnosis of Field Devices 

## VDMA 24574-1:2008-04 

Fluid technology terms, menu navigation and electrical connection for fluid sensors, Part 1: Pressure switches 

## CRN approval 

A CRN approval is available for some device versions. A CRN-approved process connection with a CSA approval must be ordered for a CRN-approved device. The CRN-approved devices are assigned the registration number 0F18141.5C. 

Ordering information: Product Configurator, order code for "Process connection" (the CRN process connections are indicated in the "Mechanical construction" section.) 

Calibration unit 

|Designation|Option1)|
|---|---|
|Sensor range; %|A|
|Sensor range; mbar/bar|B|
|Sensor range; kPa/MPa|C|
|Sensor range; psi|F|
|Switch 1; see additional spec.|S|
|Switch 1 + 2; see additional spec.|T|
|Switch, analog output; see additional spec.|U|



1) Product Configurator, order code for "Calibration; unit" 

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Ceraphant PTC31B, PTP31B 

|Calibration|Designation|Designation|Option1)|Option1)|
|---|---|---|---|---|
||3-point certificate of calibration2)||F3||
||1)<br>Product Configurator, order code for "Calibration"<br>2)<br>No final test report for PNP outputs.||||
|Inspection certificates|Device|Designation||Option1)|
||PTC31B<br>PTP31B|3.1 Material documentation, wetted metal parts, EN10204-3.1 inspection certificate||JA|
||1)<br>Product Configurator, order code for "Test, certificate"<br>Documentation currently available on the Endress+Hauser website:www.endress.com→<br>Downloads or with the serial number of the device under Online Tools in the Device Viewer.<br>Service<br>_Printed product documentation_<br>A printed (hard copy) version of test reports, declarations and inspection certificates can optionally<br>be ordered via order code 570 "Service", option I7 "Printed product documentation". The documents<br>are then provided with the device upon delivery.||||



## Ordering information 

Detailed ordering information is available from the following sources: 

   - In the Product Configurator on the Endress+Hauser website: www.endress.com -> Click "Corporate" -> Select your country -> Click "Products" -> Select the product using the filters and search field -> Open product page -> The "Configure" button to the right of the product image opens the Product Configurator. 

   - From your Endress+Hauser Sales Center: www.addresses.endress.com Product Configurator - the tool for individual product configuration 

      - Up-to-the-minute configuration data 

      - Depending on the device: Direct input of measuring point-specific information such as measuring range or operating language 

      - Automatic verification of exclusion criteria 

      - Automatic creation of the order code and its breakdown in PDF or Excel output format 

      - • Ability to order directly in the Endress+Hauser Online Shop 

- Scope of delivery • Measuring device • Optional accessories • Brief Operating Instructions • Certificates 

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## Accessories 

## Weld-in adapter 

Various weld-in adapters are available for installation in vessels or pipes. 

|Device|Description|Option1)|Order number|
|---|---|---|---|
|PTP31B|Weld-in adapter G½, 316L|QA|52002643|
|PTP31B|Weld-in adapter G½, 316L 3.1 EN10204-3.1 material,<br>inspection certificate|QB|52010172|
|PTP31B|Weld-in tool adapter G½, brass|QC|52005082|



- 1) Product Configurator, order code for "Accessory enclosed" 

If installed horizontally and weld-in adapters with a leakage hole are used, ensure that the leakage hole is pointing down. This allows leaks to be detected as quickly as possible. 

## M12 plug-in jack 

|Plug|Degree of protection|Material|Option1)|Order number|
|---|---|---|---|---|
|M12<br>(self-terminated connection<br>at M12 plug)<br>53 (2.09)<br>ø20<br>(0.8)<br>A0024475|IP67|• Union nut: Cu Sn/Ni<br>• Body: PBT<br>• Seal: NBR|R1|52006263|
|M12 90 degrees<br>with 5m (16 ft) cable<br>27<br>(1.06)<br>40 (1.57)<br>�<br>A0024476|IP67|• Union nut: GD Zn/Ni<br>• Body: PUR<br>• Cable: PVC<br>Cable colors<br>• 1 = BN = brown<br>• 2 = WT = white<br>• 3 = BU = blue<br>• 4 = BK = black|RZ|52010285|
|M12 90 degrees<br>(self-terminated connection<br>at M12 plug)<br>35<br>(1.38)<br>28<br>(1.1)<br>20 (0.79)<br>A0024478|IP67|• Union nut: GD Zn/Ni<br>• Body: PBT<br>• Seal: NBR|RM|71114212|



- 1) Product Configurator, order code for "Accessory enclosed" 

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Ceraphant PTC31B, PTP31B 

||Documentation|
|---|---|
|Field of activities|Pressure measurement, powerful instruments for process pressure, differential pressure, level and|
||flow:|
||FA00004P|
|Technical Information|• TI00241F: EMC Test Procedures|
||• TI00426F: Weld-in adapters, process adapters and flanges (overview)|



## Registered trademarks 

is a registered trademark of the IO-Link company group. 

Endress+Hauser 

45 

*71621496* 71621496 

www.addresses.endress.com
Updated at June 9, 2026
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