RIA46-A1C1A

TI00142R/09/EN/07.22-00 71584473 2022-08-31 

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Products 

Services 

## Technical Information RIA46 

## Field meter 

## Digital field meter with control unit for monitoring and visualizing analog measured values 

## Application 

- Process recording and supervision 

- Process control 

- Signal adjustment and signal conversion 

- Optional Ex approval 

- WHG compliant limit signal transmitter 

- Min./max. value saved 

- 1 or 2 calculated values 

- One linearization table with 32 points for each calculated value 

- 1 or 2 analog outputs 

- Digital status output (open collector) 

- Operation using 3 keys 

- Configuration via interface and FieldCare software 

## Your benefits 

   - SIL2 approval (optional) 

- 5-digit, 7-segment backlit LC display 

- User-configurable dot matrix display range for bar graph, units and tag name 

- 1 or 2 universal inputs 

- 2 relays (optional) 

RIA46 

## Function and system design 

## Application 

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- _ 1 Example for "differential pressure" application_ 

The RIA46 field meter supplies transmitters and processes analog signals from transmitters, primarily from process instrumentation. These signals are monitored, evaluated, calculated, saved, separated, linked, converted and displayed. The signals, intermediate values and the results of calculations and analysis are transmitted by digital or analog means. 

## Measuring system 

The RIA46 is a process transmitter, which is controlled by a microcontroller, and exhibits a display, analog inputs for process and status signals, analog and digital outputs, as well as an interface for configuration. 

Connected sensors (e.g. temperature, pressure) can be powered by the integrated transmitter power supply system. The signals to be measured are converted from analog to digital signals, processed digitally in the device, and then converted from digital to analog signals and made available to the various outputs. All measured values, and values calculated in any way, are available as a signal source for the display, all outputs, relays and the interface. It is possible to make multiple use of the signals and results (e.g. a signal source as an analog output signal and limit value for a relay). 

## Mathematics functions 

The following mathematics functions are available in RIA46: 

- Sum 

- Difference 

- Multiplication 

- Mean 

- Linearization 

## Linearization function 

Up to 32 user-definable points are available in the device per calculated value to linearize the input, e.g. for tank linearization. In the case of the two-channel device (option), mathematics channel M2 can be used to linearize mathematics channel M1. 

Linearization is also available in the FieldCare configuration software. 

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||Input|
|---|---|
|Measured variable|Current, voltage, resistance, resistance thermometer, thermocouples|
|Measuring ranges|Current:|
||• 0/4 to 20 mA +10% overrange|
||• Short-circuit current: max. 150 mA|
||• Load: 10 Ω|
||Voltage:|
||• 0 to 10 V, 2 to 10 V, 0 to 5 V, 0 to 1 V, 1 to 5 V, ±1 V, ±10 V, ±30 V, ±100 mV|
||• Max. permitted input voltage:|
||Voltage ≥ 1 V: ±35 V|
||Voltage < 1 V: ±12 V|
||• Input impedance: > 1 000 kΩ|
||Resistance:|
||30 to 3 000 Ω|
||Resistance thermometer:|
||• Pt100 as per IEC60751, GOST, JIS1604|
||• Pt500 and Pt1000 as per IEC60751|
||• Cu100, Cu50, Pt50, Pt46, Cu53 as per GOST|
||• Ni100, Ni1000 as per DIN 43760|
||Thermocouple types:|
||• Typ J, K, T, N, B, S, R as per IEC60584|
||• Typ U as per DIN 43710|
||• Typ L as per DIN 43710, GOST|
||• Typ C, D as per ASTM E998|
|Number of inputs|One or two universal inputs|
|Update time|200 ms|
|Galvanic isolation|Towards all other circuits|
||Output|
|Output signal|One or two analog outputs, galvanically isolated|
||Current/voltage output|
||Current output:|
||• 0/4 to 20 mA|
||• Overrange up to 22 mA|
||Voltage:|
||• 0 to 10 V, 2 to 10 V, 0 to 5 V, 1 to 5 V|
||• Overrange: up to 11 V, short-circuit proof, Imax< 25 mA|
||HART®|
||HART® signals are not affected|
|Loop power supply|• Open-circuit voltage: 24 VDC(+15% /-5%)|
||• Hazardous area version: > 14 V at 22 mA|
||• Non-hazardous area version: > 16 V at 22 mA|
||• Maximum 30 mA short-circuit-proof and overload-resistant|
||• Galvanically isolated from system and outputs|
|Switching output|Open collector for monitoring the device state as well as open circuit and alarm notification. The OC|
||output is closed in the fault-free operating state. In error state, the OC output is opened.|



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- Imax = 200 mA 

- Umax = 28 V 

- Uon/max = 2 V at 200 mA 

Galvanic isolation to all circuits, test voltage 500 V 

## Relay output 

## Relay output for limit monitoring 

|Relay contact|Changeover|
|---|---|
|Maximum contact load DC|30 V / 3 A (permanent state, without destruction of the input)|
|Maximum contact load AC|250 V / 3 A (permanent state, without destruction of the input)|
|Minimum contact load|500 mW (12 V/10 mA)|
|Galv. isolation towards all other circ|uits<br>Test voltage 1 500 VAC|
|Switching cycles|> 1 million|



## Power supply 

## Terminal assignment 

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- _ 2 Interior view and terminal assignment of the process indicator_ 

- _1 Connection socket for interface cable_ 

- _2 Terminal for supply voltage_ 

- _3 Terminal for relay 1 (optional)_ 

- _4 Terminal for relay 2 (optional)_ 

- _5 Terminal for analog and status output_ 

- _6 Terminal for analog input 1_ 

- _7 Terminal for analog input 2 (optional) 8 HART® connection sockets 9 Laser labeling of terminal assignment_ 

Supply voltage 

Power consumption 

Wide range power supply 24 to 230 V AC/DC (-20 % / +10 %) 50/60 Hz 

Max. 21.5 VA / 6.9 W 

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Interface connection data 

Commubox FXA291 PC USB interface 

- Connection: 4-pin socket 

- Transmission protocol: FieldCare 

- Transmission rate: 38,400 baud 

Interface cable TXU10-AC PC USB interface 

- Connection: 4-pin socket 

- Transmission protocol: FieldCare 

- Order configuration: interface cable with FieldCare Device Setup DVD incl. all Comm DTMs and Device DTMs 

## Performance characteristics 

Reference operating Power supply: 230 VAC, 50/60 Hz conditions Ambient temperature: 25 °C (77 °F) ± 5 °C (9 °F) Humidity: 20 %...60 % rel. humidity 

## Maximum measured error 

## Universal input: 

|Accuracy|Input:|Range:|Maximum measured error of measuring<br>range (oMR):|
|---|---|---|---|
||Current|0 to 20 mA, 0 to 5 mA, 4 to 20 mA; Overrange: up<br>to 22 mA|±0.05%|
||Voltage ≥ 1 V|0 to 10 V, 2 to 10 V, 0 to 5 V, 1 to 5 V, 0 to 1 V,<br>±1 V, ±10 V, ±30 V|±0.1%|
||Voltage < 1 V|±100 mV|±0.05%|
||Resistance measurement|30 to 3 000 Ω|4-wire: ± (0.10% oMR + 0.8 Ω)<br>3-wire: ± (0.10% oMR + 1.6 Ω)<br>2-wire: ± (0.10% oMR + 3 Ω)|
||RTD|Pt100, –200 to 850 °C (–328 to 1 562 °F)<br>(IEC60751, α=0.00385)<br>Pt100, –200 to 850 °C (–328 to 1 562 °F)<br>(JIS1604, w=1.391)<br>Pt100, –200 to 649 °C (–328 to 1 200 °F) (GOST,<br>α=0.003916)<br>Pt500, –200 to 850 °C (–328 to 1 562 °F)<br>(IEC60751, α=0.00385)<br>Pt1000, –200 to 600 °C (–328 to 1 112 °F)<br>(IEC60751, α=0.00385)|4-wire: ± (0.10% oMR + 0.3 K (0.54 °F))<br>3-wire: ± (0.10% oMR + 0.8 K (1.44 °F))<br>2-wire: ± (0.10% oMR + 1.5 K (2.7 °F))|
|||Cu100, –200 to 200 °C (–328 to 392 °F) (GOST,<br>w=1.428)<br>Cu50, –200 to 200 °C (–328 to 392 °F) (GOST,<br>w=1.428)<br>Pt50, –200 to 1 100 °C (–328 to 2 012 °F) (GOST,<br>w=1.391)<br>Pt46, –200 to 850 °C (–328 to 1 562 °F) (GOST,<br>w=1.391)<br>Ni100, –60 to 250 °C (–76 to 482 °F) (DIN43760,<br>α=0.00617)<br>Ni1000, –60 to 250 °C (–76 to 482 °F)<br>(DIN43760, α=0.00617)|4-wire: ± (0.10% oMR + 0.3 K (0.54 °F))<br>3-wire: ± (0.10% oMR + 0.8 K (1.44 °F))<br>2-wire: ± (0.10% oMR + 1.5 K (2.7 °F))|
|||Cu53, –50 to 200 °C (–58 to 392 °F) (GOST,<br>w=1.426)|4-wire: ± (0.10% oMR + 0.3 K (0.54 °F))<br>3-wire: ± (0.10% oMR + 0.8 K (1.44 °F))<br>2-wire: ± (0.10% oMR + 1.5 K (2.7 °F))|
||Thermocouples|Typ J (Fe-CuNi),<br>–210 to 1 200 °C (–346 to 2 192 °F) (IEC60584)|± (0.10% oMR +0.5 K (0.9 °F))<br>from –100 °C (–148 °F)|



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|Accuracy|Input:|Range:|Maximum measured error of measuring<br>range (oMR):|
|---|---|---|---|
|||Typ K (NiCr-Ni),<br>–200 to 1 372 °C (–328 to 2 502 °F) (IEC60584)|± (0.10% oMR +0.5 K (0.9 °F))<br>from –130 °C (–202 °F)|
|||Typ T (Cu-CuNi), –270 to 400 °C (–454 to 752 °F)<br>(IEC60584)|± (0.10% oMR +0.5 K (0.9 °F))<br>from –200 °C (–328 °F)|
|||Typ N (NiCrSi-NiSi),<br>–270 to 1 300 °C (–454 to 2 372 °F) (IEC60584)|± (0.10% oMR +0.5 K (0.9 °F))<br>from –100 °C (–148 °F)|
|||Typ L (Fe-CuNi),<br>–200 to 900 °C (–328 to 1 652 °F) (DIN43710,<br>GOST)|± (0.10% oMR +0.5 K (0.9 °F))<br>from –100 °C (–148 °F)|
|||Typ D (W3Re/W25Re),<br>0 to 2 495 °C (32 to 4 523 °F)(ASTME998)|± (0.15% oMR +1.5 K (2.7 °F))<br>from 500 °C (932 °F)|
|||Typ C (W5Re/W26Re),<br>0 to 2 320 °C (32 to 4 208 °F) (ASTME998)|± (0.15% oMR +1.5 K (2.7 °F))<br>from 500 °C (932 °F)|
|||Typ B (Pt30Rh-Pt6Rh),<br>0 to 1 820 °C (32 to 3 308 °F) (IEC60584)|± (0.15% oMR +1.5 K (2.7 °F))<br>from 600 °C (1 112 °F)|
|||Typ S (Pt10Rh-Pt),<br>–50 to 1 768 °C (–58 to 3 214 °F) (IEC60584)|± (0.15% oMR +3.5 K (6.3 °F))<br>for –50 to 100 °C (–58 to 212 °F)<br>± (0.15% oMR +1.5 K (2.7 °F))<br>from 100 °C (212 °F)|
|||Typ U (Cu-CuNi),<br>–200 to 600 °C (–328 to 1 112 °F) (DIN 43710)|± (0.15% oMR +1.5 K (2.7 °F))<br>from 100 °C (212 °F)|
|AD converter resolution||16 bit||
|Temperature drift||Temperature drift: ≤ 0.01%/K (0.1%/18 °F) oMR<br>≤ 0.02%/ K (0.2%/18 °F) oMR for Cu100, Cu50, Cu53, Pt50 and Pt46||



## Analog output: 

|Current|0/4 to 20 mA, overrange up to 22 mA|±0.05% of measuring range|
|---|---|---|
||Max. load|500 Ω|
||Max. inductivity|10 mH|
||Max. capacity|10 µF|
||Max. ripple|10 mVpp at 500 Ω, frequency < 50 kHz|
|Voltage|0 to 10 V, 2 to 10 V<br>0 to 5 V, 1 to 5 V<br>Overrange: up to 11 V, shortcircuit proof, Imax< 25 mA|±0.05% of measuring range<br>±0.1 % of measuring range|
||Max. ripple|10 mVpp at 1 000 Ω, frequency < 50 kHz|
|Resolution|13 bit||
|Temperature drift|≤ 0.01%/K (0.1%/18 °F) of measuring range||
|Galvanic isolation|Testing voltage of 500 V towards all other circuits||



## Installation 

Mounting location 

Field, direct wall mounting and wall or pipe mounting[ 1)] using the optional mounting plate. 

Orientation 

No restrictions. 

The orientation is determined by the readability of the display. 

1) According to UL approval panel or surface mounting only. 

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Max. viewing angle range +/- 45° from the central display axis in every direction. 

## Environment 

||Environment|
|---|---|
|Ambient temperature range|NOTICE|
||The life-time of the display is shortened when operated in the upper temperature range.|
||‣<br>To avoid heat accumulation, always make sure the device is sufficiently cooled.|
||Non-Ex/Ex devices: –40 to 60 °C (–40 to 140 °F)|
||UL devices: –40 to 50 °C (–40 to 122 °F)|
||At temperatures below –30 °C (–22 °F) the readability of the display can no longer be<br>guaranteed.|
|Storage temperature|–40 to 85 °C (–40 to 185 °F)|
|Altitude|< 2 000 m (6 560 ft) above MSL|
|Climate class|As per IEC 60654-1, Class B2|
|Degree of protection|IP 67 / NEMA 4x (not evaluated by UL)|
|Impact resistance|3g at 2-150 Hz as per IEC 60068-2-6|
|Electrical safety|Protection class I, overvoltage protection category II, pollution degree 2 for aluminum housing|
||Protection class II, overvoltage protection category II, pollution degree 2 for plastic housing|
|Condensation|Permitted|
|Electromagnetic|CE compliance|
|compatibility (EMC)|Electromagnetic compatibility in accordance with all the relevant requirements of the IEC/EN 61326|
||series and NAMUR Recommendation EMC (NE21). For details refer to the EU Declaration of|
||Conformity.|
||• Maximum measured error < 1% of measuring range|
||• Interference immunity as per IEC/EN 61326 series, industrial requirements|
||• Interference emission as per IEC/EN 61326 series (CISPR 11) Group 1 Class A|
||This unit is not intended for use in residential environments and cannot guarantee adequate<br>protection of the radio reception in such environments.|



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## Mechanical construction 

Design, dimensions 

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- _ 3 Dimensions of the field meter in mm (in)_ 

- _A Drill-hole for direct wall mounting or on optional mounting plate with 4 screws 5 mm (2 in)_ 

## Weight 

- Plastic housing: approx. 600 g (1.32 lb) 

- Aluminum housing: approx. 1 700 g (3.75 lb) 

## Material 

## Terminals 

|Housing|Nameplate|
|---|---|
|Fiber-glass reinforced plastic PBT-GF30|Laser marking|
|Optional: Aluminum (AlSi12, AC-44100 or AlSi10Mg(Fe), AC-4|3400)<br>Laser-writable foil, polyester|



- Spring terminals, 2.5 mm[2] (14 AWG); auxiliary voltage with plug-in screw terminals 0.1 to 4 mm[2] (30 to 12 AWG), torque 0.5 to 0.6 Nm (0.37 to 0.44 lbf ft). 

## Operability 

Local operation 

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- _ 4 Display of the field meter_ 

- _1 Channel display: 1: analog input 1; 2: analog input 2; 1M: calculated value 1; 2M: calculated value 2_ 

- _2 Dot matrix display for TAG, bar graph and unit_ 

- _3 Limit value indicators in the bar graph_ 

- _4 "Operation locked" indicator_ 

- _5 Green LED; measuring device operational_ 

- _6 Red LED; error/alarm_ 

- _7 Yellow LED; status of relay 1_ 

- _8 Yellow LED; status of relay 2_ 

- _9 Minimum/maximum value indicator_ 

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- Display 5-digit, 7-segment backlit LC display Dot matrix for text/bar graph 

- Display range 

- -99999 to +99999 for measured values 

- Signaling 

- Setup security locking (lock) 

- Measuring range overshoot/undershoot 

- 2 x status relay (only if relay option was selected) 

## Operating elements 

3 keys: -, +, E 

Remote operation Configuration 

The device can be configured with the PC software or on site using the operating keys. FieldCare Device Setup is delivered together with the Commubox FXA291 or TXU10-AC (see ’Accessories’) or can be downloaded free of charge from www.endress.com. 

## Interface 

4-pin socket for the connection with a PC via Commubox FXA291 or TXU10-AC interface cable (see 'Accessories') 

## Certificates and approvals 

Current certificates and approvals that are available for the product can be selected via 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. 

Other standards and guidelines 

- IEC 60529: 

Degrees of protection provided by enclosures (IP code) 

- IEC 61010-1: 

Safety requirements for electrical equipment for measurement, control and laboratory use 

- EN 60079-11: 

Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "I" (optional) 

## 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 

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## Accessories 

Various accessories are available for the device, and can be ordered with the device or at a later stage from Endress+Hauser. Detailed information on the specific order code is available from your local Endress+Hauser sales organization or on the product page of the Endress+Hauser website: www.endress.com. 

## Device-specific accessories 

## Cable glands and adapters 

## _Adapter set, NPT_ 

1x M20x1.5 (male) - NPT1/2" (female) RIA46X-GI 4x M16x1.5 (male) - NPT1/2" (female) 

## _Plastic coupling set_ 

4x M16x1.5 + 1x M20x1.5 RIA46X-GH 

## Housing 

## _Weather protection cover_ 

## Order: 

- As an additional option in the product structure of the RIA46 

- Separately via the order code: RK01-AR 

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163.9 (6.45) 274 (10.79)<br>30<br>(1.18)<br>272 (10.71)<br>  A0021548<br> 5 Dimensions in mm (in)<br>140°<br>95°<br>180 (7.09)<br>**----- End of picture text -----**<br>


## _Mounting kit for wall/pipe mounting_ 

## Order: 

- As an additional option in the product structure of the RIA46 

- Separately via the order code: RK01-AH 

## _Pipe mounting set_ 

||Stainless steel housing W08|71091611|
|---|---|---|
||||
|Communication-specific<br>accessories|Designation||
||Interface cable||
||Commubox TXU10 incl. FieldCare Device Setup and DTM Library||
||Commubox FXA291 incl. FieldCare Device Setup and DTM Library||



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## Supplementary documentation 

The following types of documentation are available on the product pages and in the Download Area of the Endress+Hauser website (www.endress.com/downloads) (depending on the selected device version): 

|Document|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>The Operating Instructions contain all the information that is required in<br>various phases of the life cycle 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 (XA) are supplied with the<br>device. The Safety Instructions are an integral part of the Operating<br>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 an<br>integral part of the device documentation.|



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