Process display with digital output, monitoring and pump control functions


11-35 Pcs.



  • Input with two-wire loop power supply and intrinsic safety option

  • Pump control function

  • Monitoring function via status inputs

  • Digital output with integration

7-digit/14 segment


ATEX II (1) GD [EEx ia] IIC optional

Standard Dimensions:

9696 mm

4 or 8 (optional)


Linearisation, pump control function, integration


Optional 1 analog output

Product/VersionPrice/pcs. in NZ$Order code
Process indicator RIA452
ApprovalMeasuring SignalOutput1 to 34 to 1011 to 35
Non-hazardous areaUniversal U,I,R,RTD,TC8x relay SPDT limit + 1x analog + 1x pulse + integration + linearisation for open channel1500.-1395.-1320.-RIA452-A224A11A
The above model is ex stock. Please ask for pricing and delivery time of other RIA452 versions.
Product/VersionPrice/pcs. in NZ$Order code
Accessories1 to 34 to 1011 to 35
Configuration kit TXU10- for PC-programmable devices. set-up programme+interface cable for PC with USB-Port.300.-TXU10-BA

Prices are net, ex store Auckland, GST additional and valid until 30/9/2016.
EMC's standard Terms and Conditions of Supply are applicable.


The RIA452 process display interprets and displays process signals with high resolution and accuracy. It can also be used to automate control tasks via limit values or analogue and digital outputs.


Up to eight presettable relays monitor the measured value for any infringement (undershooting/overstepping) of the preset limit values. Further operation modes for the relays are sensor or device errors, batch and pump control functions (e.g. alternating pump control). The scalable analog output offers wide options to transfer the input signal: zoom function, linearisation, offset, inverting and signal conversion (conversion in-/output). The optional impuls output offers the possibility to create integrated process values. Simple setting up using a serial interface and PC programme or manually using the configurating dial on the front of the unit.

Application example

Technical data

  • Analog input
10/4 to 20 mA (impedance 5 Ω)
  • Universal input
0/4 to 20 mA, 0 to 5 mA, 40 mV, 150 mV, 600 mV,
2,5 V, 0 to 10 V, 0 to 5 V, 10 V, 30 to 3000 Ω
resistance thermometer Pt100/500/1000, Cu50/100, Pt50
thermocouple types J, K, T, N, B, S, R to IEC 584;
D, C to ASTM E998;
L to DIN 43710, GOST
  • Digital input
4, max. 10 Hz
  • Accuracy
0.1 % of the measurement range end value
  • Transmitter supply
24 V DC, 250 mA, on option intrinsically safe 124 V DC,
22 mA in addition
  • Analog output
10/4 to 20 mA, 0 to 10 V DC
  • Output impedance
Max. ≤ 600 Ω
  • Digital output
1 open collector passive 12.5 kHz 4 relays (changeover contact), 250 V AC/30 V DC, 3A; expandable to 8 relays (option)
  • Linearity
≤ 0.1 % of the measurement range end value
Operating conditions
  • Ambient temperature
-20 to +60 C
  • Storage temperature
-30 to +70 C
  • Climatic class
To IEC 60 654-1 class B2 bedewing is forbidden
  • EMC
Interference immunity to IEC 61326 (industrial environment) and NAMUR NE 21;
interference emissions to IEC 61326 Class A
  • Ingress protection
Front IP 65, Terminals IP 20
Power supply
  • Supply voltage
20 to 36 V DC/ 20 to 28 V AC, 50/60 Hz
Mechanical construction
  • Electrical connection
Plug on screw terminals, size 1.5 m solid, 1.0 mm multi with ferrule
  • Materials used
Housing front: ABS plastic, electro-plated
Housing casing: PC10GF plastic
User interface
  • Display
7 digit 14-segment LC-display in white (10 mm);
engineering unit with 977 Dot Matrix display;
42-parts bargraph in yellow with over- and under range in red;
limit value markings in yellow;
status display
  • Range of display
-99999 to +99999
  • Operation
via Jog-Shuttle or using RS232 and PC software ReadWin 2000
  • Features
Linearisation with 32 points, elapsed hour indicator, alternating pump control, tendency analysis, batch-function, integration, min/max value storage
  • Ex approval
ATEX II (1) GD [EEx ia] IIC

Dimensions (in mm)

Installation according to instruction manual

Electrical connection

Universal input

a) Current input 0...20 mA

b) Voltage input +/- 1 V

c) Voltage input +/- 30 V

d) Thermocouples

e) RTD 4-wire

f) RTD 3-wire

Technical datasheet