TMR31-A1BBABAB1AAA

TI00123R/09/EN/21.24-00 71655124 2024-04-01 

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## Technical Information Compact thermometer TMR31, TMR35 

For general (TMR31) or hygienic applications (TMR35), with Pt100, class A sensor and 4-wire connection 

Optionally with integrated 4 to 20 mA transmitter, PC programmable 

## Applications 

- Designed for universal use in general or hygienic applications in the Food & Beverages and Life Sciences industries. Preferred installation locations include compact vessels and pipes - anywhere a compact thermometer design with short immersion lengths and reliable measurement offers additional advantages. 

- Measuring range: –50 to +150 °C (–58 to +302 °F), with extension neck up to 200 °C (392 °F) 

- Pressure range: up to 100 bar (1 450 psi) 

- Protection class: IP69K 

- Output 

- Without electronics: Pt100 (4-wire connection) 

- With electronics: 4 to 20 mA 

## Your benefits 

Quick installation and easy commissioning: 

- Small, compact design, made entirely of stainless steel 

- M12 connection with IP69K protection for easy electrical connection 

- Pt100, 4-wire connection or PC-programmable transmitter with 4 to 20 mA output 

- Can also be ordered with preconfigured measuring range 

- Variable installed lengths from 40 to 600 mm (1.57 to 23.6 in) 

Outstanding measurement properties thanks to innovative sensor technology: 

- Extremely short response times 

- Very accurate even with short immersion lengths 

- Thinfilm sensor element Pt100, accuracy class A (IEC 60751) 

Safe operation with certificates and approvals: 

- Device safety according to EN 61010-1 

- Electromagnetic compatibility as per NAMUR NE21 

- Failure information in the event of sensor break or sensor short circuit, configurable according to NAMUR NE43 

- TMR35: hygiene-compliant design with 3-A mark, EHEDG certification, ASME BPE conformity, FDA, EC 1935/2004, EN 2023/2006, TSE/ADI 

- Marine approval according to DNV GL 

Compact thermometer TMR31, TMR35 

## Table of contents 

|Document information . . . . . . . . . . . . . . . . . . . . . . .|3|
|---|---|
|Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|3|
|Function and system design . . . . . . . . . . . . . . . . . . .<br>Measuring principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br>Measuring system . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br>Equipment architecture . . . . . . . . . . . . . . . . . . . . . . . . .|3<br> 3<br>3<br>4|
|Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br>Measuring range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|4<br> 4|
|Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|5|
|Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|5|
|Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br>Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<br>Linearization/transmission behavior . . . . . . . . . . . . . . . . .|5<br>5<br> 5|



|Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|5|
|---|---|
|Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|5|
|Power supply failure . . . . . . . . . . . . . . . . . . . . . . . . . . .|5|
|Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . .|5|
|Input current required . . . . . . . . . . . . . . . . . . . . . . . . . .|6|
|Maximum current consumption . . . . . . . . . . . . . . . . . . . .|6|
|Switch-on delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|6|
|Overvoltage protection . . . . . . . . . . . . . . . . . . . . . . . . . .|6|



|Performance characteristics . . . . . . . . . . . . . . . . . . . <br>Reference operating conditions . . . . . . . . . . . . . . . . . . . .<br>Maximum measured error . . . . . . . . . . . . . . . . . . . . . . .<br>Long-term drift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br>Operating influences . . . . . . . . . . . . . . . . . . . . . . . . . . .<br>Sensor response time . . . . . . . . . . . . . . . . . . . . . . . . . . .|6<br>6<br>7<br> 7<br>7<br> 7|
|---|---|
|Electronics response time . . . . . . . . . . . . . . . . . . . . . . . .|7|
|Sensor current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|7|
|Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|8|
|Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|8|
|Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|8|
|Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . .|8|
|Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|11|
|Ambient temperature range . . . . . . . . . . . . . . . . . . . . .|11|
|Storage temperature . . . . . . . . . . . . . . . . . . . . . . . . . .|11|
|Operating altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . .|11|
|Climate class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|11|
|Degree of protection . . . . . . . . . . . . . . . . . . . . . . . . . .|11|
|Shock and vibration resistance . . . . . . . . . . . . . . . . . . . .|11|
|Electromagnetic compatibility (EMC) . . . . . . . . . . . . . . .|11|
|Electrical safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|11|
|Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|11|
|Process temperature range . . . . . . . . . . . . . . . . . . . . . .|11|
|Process pressure range . . . . . . . . . . . . . . . . . . . . . . . . .|12|
|Medium - state of aggregation . . . . . . . . . . . . . . . . . . . .|13|



|Mechanical construction . . . . . . . . . . . . . . . . . . . .|13|
|---|---|
|Design, dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . .|13|
|esign, dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . .|15|
|Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|16|
|Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|16|
|Surface roughness . . . . . . . . . . . . . . . . . . . . . . . . . . . .|16|
|Process connections for hygienic applications . . . . . . . . . .|16|
|Thermowell design, dimensions . . . . . . . . . . . . . . . . . . .|20|
|Human interface . . . . . . . . . . . . . . . . . . . . . . . . . . .|20|
|Local operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|20|
|Local display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|21|
|Remote operation . . . . . . . . . . . . . . . . . . . . . . . . . . . .|21|



|Certificates and approvals . . . . . . . . . . . . . . . . . . .|21|
|---|---|
|CE mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|21|
|EAC mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|21|
|Hygiene standard . . . . . . . . . . . . . . . . . . . . . . . . . . . .|21|
|Materials in contact with food/product (FCM) . . . . . . . . .|21|
|Marine approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|21|
|Other standards and guidelines . . . . . . . . . . . . . . . . . . .|21|
|Material certification . . . . . . . . . . . . . . . . . . . . . . . . . .|21|
|Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|21|
|UL approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|21|



|Ordering information . . . . . . . . . . . . . . . . . . . . . . .|22|
|---|---|
|Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|22|
|Device-specific accessories . . . . . . . . . . . . . . . . . . . . . .|22|
|Communication-specific accessories . . . . . . . . . . . . . . . .|25|
|Service-specific accessories . . . . . . . . . . . . . . . . . . . . . .|26|
|System components . . . . . . . . . . . . . . . . . . . . . . . . . . .|26|
|Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . .|27|



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Compact thermometer TMR31, TMR35 

## Document information 

## Symbols 

## Symbols for certain types of information 

|Symbol|Meaning|
|---|---|
||Permitted<br>Procedures, processes or actions that are permitted.|
||Preferred<br>Procedures, processes or actions that are preferred.|
||Forbidden<br>Procedures, processes or actions that are forbidden.|
||Tip<br>Indicates additional information.|
||Reference to documentation|
|**A**|Reference to page|
||Reference to graphic|
||Visual inspection|



## Symbols in graphics 

|Symbol|Meaning|Symbol|Meaning|
|---|---|---|---|
|1, 2, 3,...|Item numbers|1.,<br>2.,<br>3.…|Series of steps|
|A, B, C, ...|Views|A-A, B-B, C-C, ...|Sections|
|-|Hazardous area|.|Safe area (non-hazardous area)|



## Function and system design 

## Measuring principle Resistance thermometer (RTD): 

This insert uses a Pt100 according to IEC 60751 as the temperature sensor. The temperature sensor is a temperature-sensitive platinum resistor with a resistance of 100 Ω at 0 °C (32 °F) and a temperature coefficient α = 0.003851 °C[-1] . 

## Thin film resistance sensors (TF): 

A very thin, ultrapure platinum layer, approx. 1 µm thick, is vaporized in a vacuum on a ceramic substrate and then structured photolithographically. The platinum conductor paths formed in this way create the measuring resistance. Additional covering and passivation layers are applied and reliably protect the thin platinum layer from contamination and oxidation, even at high temperatures. The primary advantages of thin film temperature sensors are their smaller sizes and better vibration resistance. 

## Measuring system 

The compact thermometer measures the process temperature with a Pt100 sensor element (class A, 4-wire). An optional built-in transmitter converts the Pt100 input signal to an 4 to 20 mA output signal. 

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Compact thermometer TMR31, TMR35 

A broad portfolio of optimized components for the temperature measuring point is available to ensure seamless integration of the measuring point: 

- Power supply unit/barrier 

- Display units 

- Overvoltage protection 

For more detailed information, see the brochure "System Products and Data Managers - Solutions for the loop (FA00016K/EN)." 

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_ 1 M12 connection with 4 to 20 mA analog output_ 

## Equipment architecture 

|Design|Design|Options|
|---|---|---|
|1<br>2<br>3<br>4<br>5<br>6<br>A0044946<br>~~——J~~<br>~~—~~<br>Vi<br>in<br>ll<br>ah<br>_||1: Electrical<br>connection,<br>output signal<br>2: Transmitter<br>housing|Your benefits:<br>• M12, 4-pin connector, reduced cost and effort, incorrect wiring is<br>prevented<br>• Optimum protection, IP69K as standard<br>• Compact, integrated transmitter (4 to 20 mA)|
||3: Extension neck|Optionally available if process temperature is too high for the electronics|
||4: Process<br>connection<br>→   16|Over 25 different versions for industrial and hygienic applications.|
||5: Thermowell|• Versions with and without thermowell (insert in direct contact with process)<br>• Thermowell diameter 6 mm (0.25 in)|
||6: Insert with<br>Pt100 (TF):|Your benefits:<br>• Minimization of necessary immersion length: better product protection<br>thanks to improved process flow<br>• Excellent cost-performance ratio<br>• Insert: ⌀3 mm (¹⁄₈ in) or ⌀6 mm (¹⁄₄ in)|



## Input 

Measuring range 

Pt100 (TF) according to IEC 60751 

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Compact thermometer TMR31, TMR35 

|Without extension neck|–50 to +150 °C (–58 to +302 °F)|
|---|---|
|With extension neck|–50 to +200 °C (–58 to +392 °F)|



Min. span = 10 K (18 °F) 

## Output 

||Output|||
|---|---|---|---|
|Output signal|Sensor output|Pt100, 4-wire connection, class A||
||Analog output|4 to 20  mA; variable measuring range||
|||||
|Signal on alarm|The signal on alarm is generated if the measuring information is missing or not valid.<br>In the 4 to 20 mA mode, the device transmits the failure information according to NAMUR NE43:|||
||Underranging||Linear drop from 4.0 to 3.8 mA|
||Overranging||Linear increase from 20.0 to 20.5 mA|
||Failure e.g. sensor defective||≤ 3.6 mA (low) or ≥ 21 mA (high) can be selected<br>Thehighalarm setting can be set between 21.5 mA and<br>23 mA, thus providing the flexibility needed to meet the<br>requirements of various control systems.|
|||||
|Load||||
||Rb max.= (Ub max.- 10 V) / 0.023 A (current<br>output)||Ub<br>30 V<br>870<br>610<br>250<br>10 V<br>0<br>24 V<br>15.75 V<br>VDC<br>Ω<br>A0048582|
|||||
|Linearization/transmission<br>behavior|Temperature - linear|||



## Power supply 

||Power supply||
|---|---|---|
|Supply voltage|Ub|10 to 35 VDC|
||||
|Power supply failure|• To meet electrical safety according to CAN/CSA-C22.2 No. 61010-1 or UL 61010-1, the device<br>may only be powered by a power supply unit with a limited energy electric circuit in accordance<br>with UL/EN/IEC 61010-1 chapter 9.4 or Class 2 according to UL 1310, "SELV or Class 2 circuit".<br>• Behavior in the event of overvoltage (> 30 V)<br>The device works continuously up to 35 VDCwithout any damage. If the supply voltage is exceeded,<br>the specified characteristics are no longer guaranteed.<br>• Behavior in the event of undervoltage<br>If the supply voltage falls below the minimum value ~ 7 V, the device switches off in a defined<br>manner (status as if not supplied with power).||
|Electrical connection|According to the 3-A Sanitary Standard and the EHEDG, electrical connecting cables must be<br>smooth, corrosion-resistant and easy to clean.||



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1 +<br>2 nc<br>3 -<br>4 nc<br>4 3<br>M12x1<br>0 V<br>(4...20 mA)<br>�<br>Pt100<br>1 2<br>10...35 VDC<br>(4...20 mA)<br>A B<br>**----- End of picture text -----**<br>


- A0020176 

- _ 2 Pin assignment, device plug_ 

- _A Version with transmitter, M12 plug, 4-pin_ 

- _B Version without transmitter, Pt100, 4-wire connection_ 

- 1: Pin 1 Power supply 10 to 35 VDC Current output 4 to 20 Cable connection, wire color brown = BN 

- 2: Pin 2 Connection of PC configuration cable - shortened pin Cable connection, wire color white = WH 

- 3: Pin 3 Power supply 0 VDC Current output 4 to 20 Cable connection, wire color blue = BU 

- 4: Pin 4 Connection of PC configuration cable - shortened pin Cable connection, wire color black = BK 

Input current required ≤ 3.5 mA for 4 to 20 mA 

Maximum current ≤ 23 mA for 4 to 20 mA consumption 

Switch-on delay 2 s 

Overvoltage protection 

To protect against overvoltage in the power supply and signal/communication cables for the thermometer electronics, the manufacturer offers the HAW562 surge arrester for DIN rail mounting. 

For more detailed information, see Technical Information HAW562 surge arrester (TI01012K) . 

## Performance characteristics 

Reference operating conditions 

|Adjustment temperature<br>(ice bath)|0 °C (32 °F) for sensor|
|---|---|
|Ambient temperature<br>range|25 °C ± 3 °C(77 °F ± 5 °F) for electronics|
|Supply voltage|24 VDC± 10 %|
|Relative humidity|< 95 %|



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Compact thermometer TMR31, TMR35 

## Maximum measured error 

According to DIN EN 60770 and the reference conditions specified above. The measured error data correspond to ±2 σ (Gaussian distribution). The data include non-linearities and repeatability. 

|T| = Numerical value of the temperature in °C without regard to algebraic sign. 

## _Thermometer without electronics_ 

|Standard|Designation|Designation|Measuring range|Measured error ME (±)|Measured error ME (±)|Measured error ME (±)|Measured error ME (±)|
|---|---|---|---|---|---|---|---|
|||||Maximum1)||Based on measured value2)||
|IEC 60751|Pt100 Cl. A||–50 to +200 °C<br>(–58 to +392 °F)|0.55 K (0.99 °F)||ME = ± (0.15 K (0.27 °F) +<br>0.002 * |T|)||
|1)<br>Maximum measured error for the specified measuring range.<br>2)<br>Deviations from maximum measured error possible due to rounding.<br>_Thermometer with electronics_||||||||
|Standard||Designation|||Measuring range||Measured error (±)1)|
|IEC 60751||Pt100 Cl. A|||–50 to +200 °C<br>(–58 to +392 °F)||0.1 K (0.18 °F) or 0.08 %|
|1)<br>Percentage refers to the set span. The larger value is valid.||||||||



_Total measured error of thermometer (sensor + electronics)_ 

||Standard|Designation|Designation|Measuring range|Measuring range|Measured error ME (±)1)|
|---|---|---|---|---|---|---|
||IEC 60751|Pt100 Cl. A||• –50 to +150 °C<br>(–58 to +302 °F) without<br>extension neck<br>• –50 to +200 °C<br>(–58 to +392 °F) with<br>extension neck||ME = ± (0.25 K (0.48 °F) +<br>0.002 * |T|)|
||1)<br>Deviations from maximum measured error possible due to rounding.||||||
|Long-term drift|Electronics:<br>≤  0.1 K (0.18 °F)/year or 0.05 %/year<br>Data under reference operating conditions. % refers to the set span. The larger value is valid.||||||
|Operating influences|_The measured error data correspond to ±2_s_(Gaussian distribution)._||||||
||Ambient temperature||T = ±(15 ppm/K * (full scale value + 200) + 50 ppm/K * set measuring range) * DT<br>DT = deviation of ambient temperature from the reference operating conditions||||
||Supply voltage||≤ ± 0.01%/V deviation from 24 V1)||||
||Load||± 0.02%/100 Ω1)||||
||1)<br>Specifications in percent refer to the full scale value of the measuring range||||||
|Sensor response time|Tests in water at 0.4 m/s (1.3 ft/s) according to IEC 60751; temperature changes in increments of<br>10 K. Response times measured for the version without electronics.||||||
||t50||||t90||
||< 1 s||||< 2 s||
||||||||
|Electronics response time|Max. 1 s<br>When recording step responses, it is important to bear in mind that the response times of the<br>sensor might be added to the specified times.||||||
|Sensor current|≤ 0.6 mA||||||



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Compact thermometer TMR31, TMR35 

## Calibration 

## Calibration of thermometers 

Calibration involves comparing the measured values of a device under test (DUT) with those of a more precise calibration standard using a defined and reproducible measurement method. The aim is to determine the deviation of the DUT's measured values from the true value of the measured variable. Two different methods are used for thermometers: 

- Calibration at fixed-point temperatures, e.g. at the freezing point of water at 0 °C 

- Calibration compared against a precise reference thermometer 

The thermometer to be calibrated must display the fixed point temperature or the temperature of the reference thermometer as accurately as possible. Temperature-controlled calibration baths with very homogeneous thermal values, or special calibration furnaces into which the DUT and the reference thermometer, where necessary, can project to a sufficient degree, are typically used for thermometer calibrations. 

## Sensor-transmitter-matching 

The resistance/temperature curve of platinum resistance thermometers is standardized but in practice it is rarely possible to keep to the values precisely over the entire operating temperature range. For this reason, platinum resistance sensors are divided into tolerance classes, such as class A, AA or B as per IEC 60751. These tolerance classes describe the maximum permissible deviation of the specific sensor characteristic curve from the standard curve, i.e. the maximum temperaturedependent characteristic error that is permitted. The conversion of measured sensor resistance values at temperatures in temperature transmitters or other meter electronics is often susceptible to considerable errors as the conversion is generally based on the standard characteristic curve. 

When temperature transmitters are used, this conversion error can be reduced significantly by sensor-transmitter-matching: 

- Calibration at least at three temperatures and determination of the actual temperature sensor characteristic curve 

- Adjustment of the sensor-specific polynomial function using appropriate Calendar-van-Dusen (CvD) coefficients 

- Configuration of the temperature transmitter with the sensor-specific CvD coefficients for resistance/temperature conversion, and 

- another calibration of the reconfigured temperature transmitter with the connected resistance thermometer 

The manufacturer offers this sensor-transmitter-matching as a separate service. Furthermore, the sensor-specific polynomial coefficients of platinum resistance thermometers are indicated on every calibration protocol where possible, e.g.  at least three calibration points. 

For the device, the manufacturer offers standard calibrations at a reference temperature of –50 to +200 °C (–58 to +392 °F) based on the ITS90 (International Temperature Scale). Calibrations in other temperature ranges are available from your local sales center on request. Calibrations are traceable to national and international standards. The calibration certificate is referenced to the serial number of the device. 

## Installation 

## Orientation 

Installation instructions 

No restrictions. However, self-draining in the process must be guaranteed. If there is an opening to detect leaks at the process connection, this opening must be at the lowest possible point. 

The immersion length of the compact thermometer can considerably influence the accuracy. If the immersion length is too short, measurement errors can occur as a result of heat conduction via the process connection and the vessel wall. Therefore, if installing in a pipe, the immersion length should ideally correspond to half of the pipe diameter. 

Installation possibilities: pipes, tanks or other plant components. 

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Compact thermometer TMR31, TMR35 

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- _ 3 Installation examples_ 

- _1, 2 Perpendicular to flow direction, installed at a minimum angle of 3 °, to ensure self-draining 3 On elbows_ 

- _4 Inclined installation in pipes with a small nominal diameter_ 

- _L Insertion length_ 

The requirements of the EHEDG and the 3-A Sanitary Standard must be adhered to. 

- Installation instruction EHEDG/cleanability: Lt ≤  (Dt-dt) 

Installation instruction 3-A/cleanability: Lt ≤ 2(Dt-dt) 

In the case of pipes with a small nominal diameter, it is advisable for the tip of the thermometer to project well into the process so that it extends past the pipe axis. Installation at an angle (4) could be another solution. When determining the immersion or insertion length, all the parameters of the thermometer and of the medium to be measured must be taken into account (e.g. Flow velocity, process pressure). 

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Compact thermometer TMR31, TMR35 

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- _ 4 Detailed installation instructions for hygiene-compliant installation_ 

- _A Milk pipe connection according to DIN 11851, only in conjunction with EHEDG-certified, self-centering sealing ring_ 

- _1 Sensor with milk pipe connection_ 

- _2 Groove slip-on nut 3 Counterpart connection_ 

- _4 Centering ring 5 R0.4 6 R0.4_ 

- _7 Sealing ring B Varivent[®] process connection for VARINLINE[®] housing_ 

- _8 Sensor with Varivent connection_ 

- _9 Counterpart connection_ 

- _10 O-ring C Clamp according to ISO 2852_ 

- _11 Molded seal_ 

- _12 Counterpart connection_ 

- _D Process connection Liquiphant-M G1", horizontal installation_ 

- _13 Weld-in adapter_ 

- _14 Vessel wall_ 

- _15 O-ring_ 

- _16 Thrust collar_ 

## NOTICE 

The following actions must be taken if a sealing ring (O-ring) or seal fails: 

- ‣ The thermometer must be removed. 

- ‣ The thread and the O-ring joint/sealing surface must be cleaned. 

- ‣ The sealing ring or seal must be replaced. 

- ‣ CIP must be performed after installation. 

In the case of weld-in connections, exercise the necessary degree of care when performing the welding work on the process side: 

1. Use suitable welding material. 

2. Flush-weld or weld with welding radius ≥ 3.2 mm (0.13 in). 

3. Avoid crevices, folds or gaps. 

4. Ensure the surface is honed and mechanically polished, Ra ≤ 0.76 µm (30 µin). 

Pay attention to the following when installing the thermometer to ensure that the cleanability is not affected: 

1. The installed sensor is suitable for CIP (cleaning in place). Cleaning is performed together with the pipe or tank. In the case of internal tank fixtures using process connection nozzles, it is important to ensure that the cleaning assembly sprays this area directly so that it is cleaned properly. 

2. The Varivent® connections enable flush-mounted installation. 

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Compact thermometer TMR31, TMR35 

## Environment 

||Environment||
|---|---|---|
|Ambient temperature range|Ta|–40 to +85 °C (–40 to +185 °F)|
||||
|Storage temperature|||
||Ts|–40 to +85 °C (–40 to +185 °F)|
||||
|Operating altitude|Up to 2 000 m (6 600 ft) above sea level||
|Climate class|In accordance with IEC/EN 60654-1, class C||
|Degree of protection|As per IEC/EN 60529: IP67 with coupling and connecting cable (not evaluated by UL). Depends on<br>the degree of protection of the connection cable. →   25||
|Shock and vibration<br>resistance|4g in the range from 2 to 150 Hz as per DIN EN 60068-2-6||
|Electromagnetic<br>compatibility (EMC)|EMC to all relevant requirements of the IEC/EN 61326-series and NAMUR Recommendation EMC<br>(NE21). For details, refer to the Declaration of Conformity.<br>Maximum fluctuations during EMC-tests: < 1 % of measuring span.<br>Interference immunity to IEC/EN 61326-series, requirements for industrial areas<br>Interference emission to IEC/EN 61326-series, electrical equipment Class B||
|Electrical safety|• Protection class III<br>• Overvoltage category II<br>• Pollution level 2<br>Process||
|Process temperature range|The thermometer electronics must be protected against temperatures over 85 °C (185 °F) by an<br>extension neck of the appropriate length.<br>Device version without electronics||
||Independent of the<br>extension neck|–50 to +200 °C (–58 to +392 °F)|
||Device version with electronics||
||Without extension neck|–50 to +150 °C (–58 to +302 °F)|
||With extension neck|–50 to +200 °C (–58 to +392 °F)|
||The following restrictions apply for the thermometer for general applications with a process<br>connection, depending on the process connection and ambient temperature:<br>• If mounting with process connections with an adjustable insertion length, e.g. compression fitting<br>with sealing taper, a corresponding extension neck length must be taken into consideration when<br>installing. →   22<br>• Ambient temperatures must be taken into consideration||



|Maximum ambient temperature|Maximum process temperature|Maximum process temperature|
|---|---|---|
||Without extension neck|With extension neck length 35 mm (1.38 in)|
|≤ 25 °C (77 °F)|150 °C (302 °F)|200 °C (392 °F)|
|≤ 40 °C (104 °F)|135 °C (275 °F)|180 °C (356 °F)|



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Compact thermometer TMR31, TMR35 

|Maximum ambient temperature|Maximum process temperature|Maximum process temperature|
|---|---|---|
||Without extension neck|With extension neck length 35 mm (1.38 in)|
|≤ 60 °C (140 °F)|120 °C (248 °F)|160 °C (320 °F)|
|≤ 85 °C (185 °F)|100 °C (212 °F)|133 °C (271 °F)|



## Process pressure range 

The maximum possible process pressure depends on various influencing factors, such as the design, process connection and process temperature. Maximum possible process pressures for the individual process connections. →   16 

**==> picture [337 x 187] intentionally omitted <==**

**----- Start of picture text -----**<br>
P (psi) P (bar)<br>1500<br>100<br>1200<br>80<br>900<br>60<br>600 40<br>300 20<br>0 0<br>0 30 60 90 120 150 180 210 240 270 300<br>L (mm)<br>0 1 2 3 4 5 6 7 8 9 10 11 12<br>L (in)<br>**----- End of picture text -----**<br>


**==> picture [22 x 3] intentionally omitted <==**

**----- Start of picture text -----**<br>
  A0008063<br>**----- End of picture text -----**<br>


- _ 5 Maximum permitted process pressure_ 

- _L Insertion length p Process pressure_ 

The diagram not only considers the overpressure but also the pressure load caused by the flow, wherein a safety factor of 1.9 has been specified for operation with flow. The maximum permitted static operating pressure is lower for longer insertion lengths due to the increased bending load caused by the flow. The calculation assumes the maximum permitted flow velocity for the respective insertion length (see the diagram below). 

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Compact thermometer TMR31, TMR35 

**==> picture [387 x 243] intentionally omitted <==**

**----- Start of picture text -----**<br>
v (ft/s) v (m/s)<br>135<br>40<br>120<br>35<br>105<br>30<br>90<br>25<br>75<br>20 B<br>60<br>15<br>45<br>A<br>10<br>30<br>15 5<br>0 0<br>0 30 60 90 120 150 180 210 240 270 300<br>L (mm)<br>0 1 2 3 4 5 6 7 8 9 10 11 12<br>L (in)<br>  A0008065<br> 6 Permitted flow velocity depending on the insertion length<br>**----- End of picture text -----**<br>


- _L Insertion length during flow_ 

- _v Flow velocity_ 

- _A Medium: water at T = 50 °C (122 °F)_ 

_B Medium: superheated steam at T = 200 °C (392 °F)_ 

The permitted flow velocity is the minimum from the resonance velocity (resonance distance 80%) and the load or buckling caused by flow, which would result in the failure of the thermometer tube or the undershooting of the safety factor (1.9). The calculation was performed for the specified limit operating conditions of T = 200 °C (392 °F) and process pressure p ≤ 100 bar (1 450 psi). 

It is possible to verify the mechanical loading capacity as a function of the installation and process conditions using the online TW Sizing Module for thermowells in the Endress+Hauser Applicator software. →   22 

Medium - state of aggregation 

Gaseous or liquid (also with high viscosity, e.g. yogurt). 

## Mechanical construction 

Design, dimensions 

Thermometer for general applications 

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Compact thermometer TMR31, TMR35 

**==> picture [352 x 237] intentionally omitted <==**

**----- Start of picture text -----**<br>
M12x1<br>M12x1<br>M12x1 M12x1 M12x1<br>�H<br>M12x1<br>�H �H �H �H<br>�H 3<br>1 2<br>�D �D �D �D �D �D<br>A B C D E F<br>L1<br>L1 L1<br>L2<br>50 (1.97)<br>LH<br>71 (2.8)<br>61 (2.4) 65 (2.56) 65 (2.56)<br>41  (1.61) 12 (0.47)<br>L<br>**----- End of picture text -----**<br>


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

**----- Start of picture text -----**<br>
  A0020192<br>**----- End of picture text -----**<br>


- _ 7 Dimensions in mm (in)_ 

- _L Insertion length L, variable 40 to 600 mm (1.6 to 23.6 in) ⌀D Diameter D 6 mm (0.25 in)_ 

- _⌀H Sleeve diameter 18 mm (0.71 in)_ 

|Item|Version|Thread length L1<br>|Thread length L2|Pmax.|
|---|---|---|---|---|
|A|Shortened sleeve (without built-in<br>transmitter, without extension neck,<br>without process connection). For<br>suitable welding bosses and<br>compression fittings, see the<br>Accessories section.|-|-|-|
|B|With extension neck; LH= Extension<br>neck length 35 mm or 50 mm (1.38<br>in or 1.97 in), without process<br>connection. For suitable welding<br>bosses and compression fittings, see<br>the Accessories section.|-|-|-|
|C|Without extension neck, without<br>process connection. For suitable<br>welding bosses and compression<br>fittings, see the Accessories section.|-|-|-|
|D|Without extension neck, metric<br>threaded process connection:<br>• M14x1.5 (1 = SW/AF19)<br>• M18x1.5 (1 = SW/AF24)|12 mm (0.47 in)|-|100 bar<br>(1 450 psi)|
|E|Without extension neck, threaded<br>process connection, cylindrical as<br>per ISO 228:<br>• G¼" (2 = SW/AF19)<br>• G½" (2 = SW/AF27)|12 mm (0.47 in)<br>14 mm (0.55 in)<br><br>|-<br>-||
|F|Without extension neck, threaded<br>process connection in inches,<br>conical:<br>• ANSI NPT ¼" (3 = SW/AF19)<br>• ANSI NPT ½" (3 = SW/AF27)<br>• BSPT R ½" (3 = SW/AF/22)|14.3 mm (0.56 in)<br>19 mm (0.75 in)<br>19 mm (0.75 in)<br> <br> <br>|5.8 mm (0.23 in)<br>8.1 mm (0.32 in)<br>8.1 mm (0.32 in)||



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Compact thermometer TMR31, TMR35 

## esign, dimensions 

Thermometer for hygienic applications 

**==> picture [387 x 668] intentionally omitted <==**

**----- Start of picture text -----**<br>
M12x1<br>M12x1<br>M12x1<br>�H<br>M12x1<br>�H �H<br>�H<br>L<br>�6 �6 �6 �6<br>(0.25) (0.25) (0.25) (0.25)<br>A B C D<br>  A0018283<br> 8 Dimensions in mm (in)<br>L Insertion length L, variable 40 to 600 mm (1.6 to 23.6 in)<br>⌀H Sleeve diameter 18 mm (0.71 in)<br>M12x1 M12x1 M12x1<br>M12x1<br>�H �H<br>�H �H<br>SW/AF SW/AF<br>22 32 SW/AF SW/AF<br>19 19<br>”<br>G½ G¾”/ G3/8” G3/8”<br>G1”<br>L �3<br>�6 �6 �3<br>(0.12)<br>(0.25) (0.25) (0.12)<br>E F G H<br>  A0044938<br> 9 Dimensions in mm (in)<br>L Insertion length L, variable 40 to 600 mm (1.6 to 23.6 in)<br>⌀H Sleeve diameter 18 mm (0.71 in)<br>Item Version<br>A Shortened sleeve (without built-in transmitter, without extension neck), with 1" clamp process<br>connection (example for minimum length)<br>B Without extension neck, process connection Varivent F<br>C Without extension neck, process connection according to DIN 11851<br>D With extension neck 35 mm (1.38 in), with APV-INLINE process connection (example for<br>maximum length)<br>E Shortened sleeve (without built-in transmitter, without extension neck), process connection metal<br>sealing system for hygienic processes, G½" thread. Suitable welding boss available as an accessory.<br>F Shortened sleeve (without built-in transmitter, without extension neck), process connection for<br>hygienic processes, G¾" or G1" thread, material 316L (1.4404). Suitable Liquiphant weld-in<br>adapter available as an accessory.<br>37 (1.46)<br>26.4<br>(1.04)<br>32.9 (1.3)<br>25.5 (1)<br>20.8 (0.82)<br>13 (0.51)<br>43.4<br>(1.71)<br>48.9 (1.93) 115 (4.53)<br>77.9 (3.07)<br>72.9 (2.87)<br>18 (0.71) 19 (0.75)<br>61<br>39 (2.4)<br>(1.54)<br>35<br>(1.38)<br>35<br>(1.38)<br>35<br>(1.38)<br>38<br>(1.5)<br>83 (3.27)<br>**----- End of picture text -----**<br>


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Compact thermometer TMR31, TMR35 

|Item|Version|
|---|---|
|G|Shortened sleeve (without built-in transmitter), with extension neck, insertion length<br>83 mm (3.27 in)|
|H|With extension neck, insertion length 38 mm (1.5 in)|



Weight 

0.2 to 2.5 kg (0.44 to 5.5 lbs) for standard versions 

Material 

The temperatures for continuous operation specified in the following table are only intended as reference values for use of the various materials in air and without any significant compressive load. The maximum operating temperatures can be reduced considerably in cases where abnormal conditions such as high mechanical load occur or in aggressive media. 

|Description|Short form|Recommended max.<br>temperature for<br>continuous use in air|Properties|
|---|---|---|---|
|AISI 316L<br>(corresponds to 1.4404<br>or 1.4435)|X2CrNiMo17-13-2,<br>X2CrNiMo18-14-3|650 °C (1 202 °F)1)|• Austenitic, stainless steel<br>• High corrosion resistance in general<br>• Particularly high corrosion resistance in chlorine-based<br>and acidic, non-oxidizing atmospheres through the<br>addition of molybdenum (e.g. phosphoric and sulfuric<br>acids, acetic and tartaric acids with a low concentration)<br>• Increased resistance to intergranular corrosion and<br>pitting|



- 1) Can be used to a limited extent up to 800 °C (1472 °F) for low compressive loads and in non-corrosive media. More information is available from the sales organization. 

|Surface roughness|_Values for wetted surfaces:_||
|---|---|---|
||Standard surface, mechanically polished1)|Ra≤  0.76 µm (30 µin)|
||Mechanically polished1), buffed2)|Ra≤ 0.38 µm (15 µin)|
||Mechanically polished1), buffed and electropolished|Ra≤ 0.38 µm (15 µin)+ electropolished|
||1)<br>Or equivalent treatment that guarantees Ramax||
||2)<br>Not compliant with ASME BPE||
|Process connections for|All dimensions in mm (in).||
|hygienic applications|||



**==> picture [387 x 142] intentionally omitted <==**

**----- Start of picture text -----**<br>
�D<br>h<br>L<br>�d<br>  A0045089<br> 10 Aseptic pipe union according to DIN 11864-1, Form A<br>�i �a<br>**----- End of picture text -----**<br>


|Vi|Dimensions|Dimensions|Dimensions|Dimensions|Dimensions|Thil ti|
|---|---|---|---|---|---|---|
|erson|d|D|i|a|h|ecnca properes|
|DN25|26 mm (1.02 in)|42.9 mm (1.7 in)|26 mm (1.02 in)|29 mm (1.14 in)|9 mm (0.35 in)|• Pmax.= 40 bar (580 psi)<br>• 3-A® marked and EHEDG<br>certified<br>• ASME BPE compliance|



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Compact thermometer TMR31, TMR35 

**==> picture [387 x 127] intentionally omitted <==**

**----- Start of picture text -----**<br>
�D<br>B 1 2<br>R0.4 R0.4<br>A<br>L<br>�i �a<br>�d<br>  A0045090<br>**----- End of picture text -----**<br>


- _ 11 Milk pipe connection according to DIN 11851_ 

- _1 Centering ring 2 Sealing ring_ 

- 3-A® marked and EHEDG certified (only with EHEDG-certified and self-centering sealing ring). 

- • ASME BPE compliance 

||Type|Type|Type|Type|Type|Technical properties|
|---|---|---|---|---|---|---|
|Version1)|Dimensions<br>D<br>A<br>B<br>i<br>a|||||Pmax.|
||D|A|B|i|||
|DN25|44 mm<br>(1.73 in)|30 mm<br>(1.18 in)|10 mm<br>(0.39 in)|26 mm<br>(1.02 in)|29 mm<br>(1.14 in)<br>4|0 bar (580 psi)|
|DN40|56 mm<br>(2.2 in)|42 mm<br>(1.65 in)|10 mm<br>(0.39 in)|38 mm<br>(1.5 in)|41 mm<br>(1.61 in)<br>4|0 bar (580 psi)|
|DN50|68 mm<br>(2.68 in)|54 mm<br>(2.13 in)|11 mm<br>(0.43 in)|50 mm<br>(1.97 in)|53 mm<br>(2.1 in)<br>2|5 bar (363 psi)|



- 1) Pipes in accordance with DIN 11850 

**==> picture [387 x 164] intentionally omitted <==**

**----- Start of picture text -----**<br>
�D �D A<br>L<br>�d<br>Form A<br>�d<br>Form B<br>  A0045091<br> 12 Clamp according to ISO 2852<br>R0.8<br>R1.2<br>R0.8<br>R0.5<br>L 2.16 ± 0.1<br>0.8 ± 0.1<br>�a<br>1.6<br>0.4<br>**----- End of picture text -----**<br>


- _A Form A: in compliance with ASME BPE Type A and Form B: in compliance with ASME BPE Type B and ISO 2852_ 

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17 

Compact thermometer TMR31, TMR35 

|Version|Dimensions|Dimensions|Thil ti|Cfit|
|---|---|---|---|---|
|d:1)|D|a|ecnca properes|onormy|
|Microclamp2)DN8-18<br>(0.5"-0.75")3), Form A|25 mm (0.98 in)|-|• Pmax.= 16 bar (232 psi),<br>depends on clamp ring and<br>suitable seal<br>• 3-A® marked|ASME BPE Type A|
|Clamp DN25-38 (1"-1.5"),<br>Form B|50.5 mm<br>(1.99 in)|29 to 42.4 mm<br>(1.14 to 1.67 in)|• Pmax.= 16 bar (232 psi),<br>depends on clamp ring and<br>suitable seal<br>• 3-A® marked and EHEDG<br>certified (combined with<br>Combifit seal)<br>• Can be used with "Novaseptic<br>Connect (NA Connect)"<br>which enables flush-mount<br>installation|ASME BPE Type B; ISO 2852|
|Clamp DN40-51 (2"),<br>Form B|64 mm (2.52 in)|44.8 to 55.8 mm<br>(1.76 to 2.2 in)||ASME BPE Type B; ISO 2852|
|Clamp DN63,5 (2.5"),<br>Form B|77.5 mm<br>(3.05 in)|68.9 to 75.8 mm<br>(2.71 to 2.98 in)||ASME BPE Type B; ISO 2852|



- 1) Pipes in accordance with ISO 2037 and BS 4825 Part 1 

- 2) Microclamp (not in ISO 2852); no standard pipes 

- 3) DN8 (0.5") only possible with thermowell diameter = 6 mm (¼ in) 

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

**----- Start of picture text -----**<br>
1<br>G L1<br>A<br>L<br>  A0045092<br> 13 Thread according to ISO 228 for weld-in adapter Liquiphant<br>**----- End of picture text -----**<br>


|Vi G|Dimensions|Dimensions|Dimensions|Thil ti|
|---|---|---|---|---|
|erson|L1 thread length|A|1 (SW/AF)|ecnca properes|
|G¾" for FTL20/31/33<br>adapter|16 mm (0.63 in)|25.5 mm (1 in)|32|• Pmax.= 25 bar (362 psi) at<br>max. 150 °C (302 °F)<br>• Pmax.= 40 bar (580 psi) at<br>max. 100 °C (212 °F)<br>• 3-A® marked and EHEDG<br>certified in conjunction with<br>FTL31/33/50 adapter<br>• ASME BPE compliance|
|G¾" for FTL50 adapter|||||
|G1" for FTL50 adapter|18.6 mm (0.73 in)|29.5 mm (1.16 in)|41||



**==> picture [387 x 125] intentionally omitted <==**

**----- Start of picture text -----**<br>
�B<br>M<br>h<br>�d L<br>�A<br>  A0045093<br> 14 APV Inline<br>**----- End of picture text -----**<br>


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Compact thermometer TMR31, TMR35 

|Vi|Dimensions|Dimensions|Dimensions|Dimensions|Dimensions|Thil ti|
|---|---|---|---|---|---|---|
|erson|d|A|B|M|h|ecnca properes|
|DN50|69 mm (2.72 in)|99.5 mm<br>(3.92 in)|82 mm (3.23 in)|2xM8|19 mm (0.75 in)|• Pmax.= 25 bar (362 psi)<br>• 3-A® marked and EHEDG<br>certified<br>• ASME BPE compliance|



**==> picture [387 x 112] intentionally omitted <==**

**----- Start of picture text -----**<br>
�A<br>�B<br>L<br>�D<br>  A0045094<br> 15 Varivent [®]<br>h<br>**----- End of picture text -----**<br>


|Vi|Dimensions|Dimensions|Dimensions|Dimensions|Technical properties|Technical properties|
|---|---|---|---|---|---|---|
|erson|D|A|B|h|Pmax.||
|Type F|50 mm (1.97 in)|145 mm<br>(5.71 in)|135 mm<br>(5.31 in)|24 mm (0.95 in)|10 bar (145 psi)|• 3-A® marked and EHEDG<br>certified<br>• ASME BPE compliance|
|Type N|68 mm (2.67 in)|165 mm (6.5 in)|155 mm (6.1 in)|24.5 mm<br>(0.96 in)|||



The VARINLINE[®] housing connection flange is suitable for weld-in into the conical or torispherical head in tanks or vessels with a small diameter (≤ 1.6 m (5.25 ft)) and up to a wall thickness of 8 mm (0.31 in). 

Varivent® Type F cannot be used for installations in pipes in combination with the VARINLINE[®] housing connection flange. 

**==> picture [517 x 162] intentionally omitted <==**

**----- Start of picture text -----**<br>
Type Version Technical properties<br>Metal sealing system<br>G½"<br>G3/8"<br>Pmax. = 16 bar (232 psi)<br>G½” Thermowell diameter 6 mm (¼ in)  [Maximum torque =]<br>10 Nm (7.38 lbf ft)<br>L<br>  A0045095<br>22.5°<br>37 (1.46)<br>T = 60 (2.36)<br>14 8 (0.31)<br>(0.55)<br>�6 (¼)<br>18<br>�<br>(0.71)<br>**----- End of picture text -----**<br>


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Compact thermometer TMR31, TMR35 

**==> picture [517 x 563] intentionally omitted <==**

**----- Start of picture text -----**<br>
Type Version Technical properties<br>Process adapter D45 -<br>�50 (1.97)<br>�45 (1.77)<br>L<br>  A0045096<br>Type Version Technical properties<br>Spring-loaded cap-nut G3/8" thread for mounting in a thermowell -<br>SW/AF19<br>G3/8"<br>�d<br>  A0044937<br>Thermowell design, Thermometer for hygienic applications<br>dimensions<br>�3<br>�3 (0.12)<br>(0.12)<br>G 3/8”<br>G 3/8”<br>G ½“<br>�13<br>(0.51)<br>�18 (0.71)<br>�5.3      (0.21) �5.3      (0.21)<br>1 2<br>  A0018305<br>5   (0.20)<br>20 35 (1.38)<br>(0.79)<br>TL<br>85 (3.35) 25<br>(0.98)<br>25<br>20 (0.79) (0.98)<br>21<br>(0.83)<br>14<br>(0.55)<br>**----- End of picture text -----**<br>


- _ 16 Thermowell for connection to the compact thermometer with spring-loaded cap-nut and G3/8" thread. Dimensions in mm (in)_ 

- _1 Cylindrical thermowell, TL = 70 mm (2.76 in),option WA or 85 mm (3.35 in),option WB, with 3-A® symbol, Pmax. = 250 bar (3 626 psi) with maximum flow velocity of 40 m/s (131 ft/s)_ 

- _2 Thermowell, metal-to-metal seal, Pmax. = 16 bar (232 psi)_ 

## Human interface 

Local operation 

There are no operating elements directly on the device. The temperature transmitter is configured via remote operation. 

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Compact thermometer TMR31, TMR35 

|Local display|There are no display elements directly on the device. The measured value and diagnostic messages,|
|---|---|
||for instance, can be accessed via the interface with PC software.|
|Remote operation|Configuration via configuration set TXU10, for PC-programmable thermometer - with setup|
||software (ReadWin 2000) and interface for PC with USB port.|
||The software can be downloaded free of charge from the following website:|
||www.endress.com/readwin|
||Certificates and approvals|
|CE mark|The product meets the requirements of the harmonized European standards. As such, it complies|
||with the legal specifications of the EC directives. The manufacturer confirms successful testing of the|
||product by affixing to it the CE-mark.|
|EAC mark|The product meets the legal requirements of the EEU guidelines. The manufacturer confirms the|
||successful testing of the product by affixing the EAC mark.|
|Hygiene standard|• EHEDG certification, type EL CLASS I. EHEDG-certified/tested process connections. →   16|
||• 3-A Authorization No. 1144, 3-A Sanitary Standard 74-07. Listed process connections. →   16|
||• ASME BPE, declaration of conformity can be ordered for options indicated|
||• FDA-compliant|
||• All surfaces in contact with the medium are free from materials derived from bovine animals or|
||other livestock (ADI/TSE)|
|Materials in contact with|The materials of the thermometer in contact with food/product (FCM) comply with the following|
|food/product (FCM)|European regulations:|
||• (EC) No. 1935/2004, Article 3, paragraph 1, Articles 5 and 17 on materials and articles intended|
||to come into contact with food.|
||• (EC) No. 2023/2006 on good manufacturing practice for materials and articles intended to come|
||into contact with food.|
||• (EU) No. 10/2011 on plastic materials and articles intended to come into contact with food.|
|Marine approval|Information on the Type Approval Certificates currently available (DNVGL, BV, etc.) can be obtained|
||from the sales organization.|
|Other standards and|• IEC 60529:|
|guidelines|Degrees of protection provided by enclosures (IP code)|
||• IEC/EN 61010-1:|
||Safety requirements for electrical equipment for measurement, control, and laboratory use|
||• IEC/EN 61326 series:|
||Electromagnetic compatibility (EMC requirements)|
|Material certification|The material certificate 3.1 (according to EN 10204) can be requested separately. The short form|
||certificate includes a simplified declaration with no enclosures of documents related to the materials|
||used in the design of the individual sensor, but guarantees the traceability of the materials through|
||the identification number of the thermometer. The data regarding the origin of the materials can|
||subsequently be requested by the client if necessary.|
|Calibration|The factory calibration is performed according to an internal procedure in a laboratory of the|
||manufacturer that is accredited by the European Accreditation Organization (EA) according to|
||ISO/IEC 17025. A calibration which is performed according to EA guidelines (SIT/Accredia or DKD/|
||DAkkS) can be requested separately. The calibration is performed on the replaceable insert of the|
||thermometer. In the case of thermometers without a replaceable insert, the entire thermometer -|
||from the process connection to the tip of the thermometer - is calibrated.|
|UL approval|More information under UL Product iq™, search for keyword "E225237")|



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Compact thermometer TMR31, TMR35 

## Ordering information 

Detailed ordering information is available from your nearest sales organization www.addresses.endress.com or in the Product Configurator at www.endress.com: 

1. Select the product using the filters and search field. 

2. Open the product page. 

3. Select Configuration. 

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 

## Accessories 

Various accessories, which can be ordered with the device or subsequently from Endress+Hauser, are available for the device. Detailed information on the order code in question is available from your local Endress+Hauser sales center or on the product page of the Endress+Hauser website: www.endress.com. 

All dimensions in mm (in). 

## Device-specific accessories 

|Accessories|Description|
|---|---|
|Welding boss with sealing taper<br>G½~~”~~<br>25 (0.98)<br>36 (1.42)<br>�30(1.18)<br>�6 (0.24)<br>4<br>3<br>2<br>1<br>A0048610<br>_1_<br>_Pressure screw, 303/304, width across_<br>_flats 24 mm_<br>_2_<br>_Washer, 303/304_<br>_3_<br>_Sealing taper, PEEK_<br>_4_<br>_Collar welding boss, 316L_|• Collar welding boss movable with sealing taper, washer and<br>pressure screw G½"<br>• Material of parts in contact with the process 316L, PEEK<br>• Max. process pressure 10 bar (145 psi)<br>• Order number with pressure screw 51004751<br>• Order number without pressure screw 51004752|



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Accessories Description<br>Collar welding boss • Material of parts in contact with the process 316L<br>• Order number without pressure screw 51004752<br>G½”<br>�6               (0.24)<br>�30 (1.18)<br>  A0020710<br>Accessories Description<br>Compression fitting • Adjustable clamping ring, for process connections G½", G¾",<br>G1", NPT ½", etc.<br>�6 (0.24) • Material of compression fitting and parts in contact with the<br>process, 316L<br>• Order number TA50-HB (other versions can be configured in<br>1 the TA50 structure)<br>2<br>G½”<br>  A0048609<br>1 AF14<br>2 AF27<br>25 (0.98)<br>)<br>+0.04<br>(1.77<br>15 (0.59)<br>+1<br>45<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
Accessories Description<br>Welding boss with sealing taper (metal- • Welding boss for G½" or M12x1.5 thread<br>metal) • Metal-sealing; conical<br>• Material of parts in contact with the process 316L/1.4435<br>�30 (1.18) • Max. process pressure 16 bar (232 PSI)<br>• Order number 71424800 (G½")<br>G½”<br>  A0006621<br>M12x1.5<br>�7.6   (0.3)<br>�20 (0.8)<br>  A0018236<br>Dummy plug • Dummy plug for G½” or M12x1.5 conical metal-sealing<br>welding boss<br>• Material: SS 316L/1.4435<br>• Order number 60022519 (G½")<br>1<br>G½”/<br>M12x1.5<br>�18<br>(0.71)<br>  A0045726<br>1 AF22<br>Weld-in adapter<br>For more information about order codes and hygienic compliance of the adapters and spare<br>parts, see Technical Information (TI00426F).<br>Weld-in<br>adapter<br>  A0008246   A0008251   A0008256   A0011924   A0008248   A0008253<br>G ¾", d=29 for G ¾", d=50 for G ¾", d=55 with G 1", d=53 without G 1", d=60 with<br>G 1" adjustable<br>pipe-mounting vessel-mounting flange flange flange<br>37 (1.46)<br>(0.31)<br>8<br>16 (0.63)<br>34 (1.34)<br>15 (0.6)<br>13 (0.51)<br>17 (0.67)<br>**----- End of picture text -----**<br>


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Material 316L (1.4435) 316L (1.4435) 316L (1.4435) 316L (1.4435) 316L (1.4435) 316L (1.4435) Roughness μm (μin) process ≤1.5 (59.1) ≤0.8 (31.5) ≤0.8 (31.5) ≤0.8 (31.5) ≤0.8 (31.5) ≤0.8 (31.5) side ~~=~~ Maximum process pressure for the weld-in adapters: • 25 bar (362 PSI) at maximum 150 °C (302 °F) • 40 bar (580 PSI) at maximum 100 °C (212 °F) Communication-specific accessories Coupling Accessories Description • M12x1 coupling; elbowed, for termination of 35 (1.38) connecting cable by user • Connection to M12x1 housing connector • Body materials PBT/PA ~~—~~ • Cap-nut GD-Zn, nickel-plated ~~——~~ • IP67 degree of protection (fully locked) • Order number 51006327 • Voltage: max. 250 V • Current carrying capacity: max. 4 A • Temperature: –40 to 85 °C ~~a~~ l 14.8 (0.58) A0020722 Accessories Description • PVC cable, 4 x 0.34 mm[2] (22 AWG) with M12x1 1 2 coupling, elbow plug, screw plug, length 4 3 5 m (16.4 ft) • IP69K protection (optional) 1 (BN) • Order number 71387767 2 (WH) • Voltage: max. 250 V 3 (BU) • Current carrying capacity: max. 4 A 4 (BK) • Temperature: –25 to 70 °C A0020723 Wire colors: • 1 = BN brown • 2 = WH white • 3 = BU blue • 4 = BK black ~~=o~~ Accessories Description • PVC cable, 4 x 0.34 mm[2] (22 AWG) with M12x1 1 2 coupling nut made of epoxy coated zinc, straight socket contact, screw plug, 5 m (16.4 ft) 4 3 1 (BN) • IP69K protection (optional) 2 (WH) • Order number 71217708 3 (BU) • Voltage: max. 250 V 4 (BK) • Current carrying capacity: max. 4 A A0020725 • Temperature: –20 to 105 °C Wire colors: • 1 = BN brown • 2 = WH white • 3 = BU blue • 4 = BK black 

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## Accessories 

## Description 

||Accessories<br>Description|
|---|---|
||Configuration kit for PC-programmable transmitters -|
||setup program and interface cable (4-pin connector)<br>for PC with USB port + adapter for compact<br>thermometer with M12x1 thread<br>Order code: TXU10<br>USB|
|||
||A0028635|
|||
|||
|Service-specific accessories|Accessories<br>Description<br>Applicator<br>Software for selecting and sizing Endress+Hauser measuring devices:<br>• Calculation of all the necessary data for identifying the optimum measuring<br>device: e.g. pressure loss, accuracy or process connections.<br>• Graphic illustration of the calculation results<br>Administration, documentation and access to all project-related data and<br>parameters over the entire life cycle of a project.<br>Applicator is available:<br>Via the Internet:https://portal.endress.com/webapp/applicator<br>~~P|~~|
||Accessories<br>Description<br>Configurator<br>Product Configurator - the tool for individual product configuration<br>• Up-to-the-minute configuration data<br>• Depending on the device: Direct input of measuring point-specific information<br>such as measuring range or operating language<br>• Automatic verification of exclusion criteria<br>• Automatic creation of the order code and its breakdown in PDF or Excel output<br>format<br>• Ability to order directly in the Endress+Hauser Online Shop<br>The Configurator is available on the Endress+Hauser website at:www.endress.com<br>-> Click "Corporate" -> Select your country -> Click "Products" -> Select the product<br>using the filters and search field -> Open product page -> The "Configure" button to<br>the right of the product image opens the Product Configurator.<br>~~|~~|
||Accessories<br>Description<br>W@M<br>Life cycle management for your plant<br>W@M offers assistance with a wide range of software applications over the entire<br>process: from planning and procurement to the installation, commissioning and<br>operation of the measuring devices. All the relevant information is available for<br>every measuring device over the entire life cycle, such as the device status, device-<br>specific documentation, spare parts etc.<br>The application already contains the data of your Endress+Hauser device.<br>Endress+Hauser also takes care of maintaining and updating the data records.<br>W@M is available:<br>Via the Internet:www.endress.com/lifecyclemanagement<br>~~|~~|
|||
|System components|Accessories<br>Description<br>RIA16 field indicator<br>The field indicator presents the analog measuring signal on the display. The LC<br>display shows the current measured value in digital form and as a bar graph<br>indicating a limit value violation. The indicator is looped into the 4 to 20 mA circuit<br>and gets the required energy from there.<br>For details, see Technical Information TI00144R<br>Accessories<br>Description<br>RIA15 field indicator<br>Field indicator for looping into 4 to 20 mA, panel mounting<br>For details, see Technical Information TI00143K<br>~~———~~|
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|Accessories|Description|
|---|---|
|RIA14 field indicator|Field indicator for looping into 4 to 20 mA, optionally available with Ex d approval.<br>For details, see document TI00143R|
|||
|Accessories|Description|
|RN22/RN42|RN221: 1- or 2-channel active barrier for separation of 0/4 to 20 mA standard<br>signal circuits, optionally available as a signal duplicator, 24 V DC. HART-<br>transparent<br>RN42: 1-channel active barrier with wide range power supply for safe separation of<br>0/4 to 20 mA standard signal circuits, HART-transparent<br>For details<br>• Technical Information RN22 -> TI01515K<br>• Technical Information RN42 -> TI01584K|



## Documentation 

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. 

The following documentation may be available depending on the device version ordered: 

|Document type|Purpose and content of the document|
|---|---|
|Technical Information (TI)|Planning aid for your device<br>The document contains all the technical data on the device and provides<br>an overview of the accessories and other products that can be ordered for<br>the device.|
|Brief Operating Instructions (KA)|Guide that takes you quickly to the 1st measured value<br>The Brief Operating Instructions contain all the essential information<br>from incoming acceptance to initial commissioning.|
|Operating Instructions (BA)|Your reference document<br>These Operating Instructions contain all the information that is required<br>in the various life cycle phases of the device: from product identification,<br>incoming acceptance and storage, to mounting, connection, operation<br>and commissioning, through to troubleshooting, maintenance and<br>disposal.|
|Description of Device Parameters<br>(GP)|Reference for your parameters<br>The document provides a detailed explanation of each individual<br>parameter. The description is aimed at those who work with the device<br>over the entire life cycle and perform specific configurations.|
|Safety Instructions (XA)|Depending on the approval, safety instructions for electrical equipment in<br>hazardous areas are also supplied with the device. The Safety Instructions<br>are a constituent part of the Operating Instructions.<br>Information on the Safety Instructions (XA) that are relevant for<br>the device is provided on the nameplate.|
|Supplementary device-dependent<br>documentation (SD/FY)|Always comply strictly with the instructions in the relevant<br>supplementary documentation. The supplementary documentation is a<br>constituent part of the device documentation.|



Endress+Hauser 

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*71655124* 71655124 

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