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031-1CA20 - Signal modules analog | DMS-Module

Order no.


TypeSM 031
Module ID0841 1809

General information

FeaturesDirect connection of a resistor full bridge (DMS) or load cell
4- or 6-wire connection 16 (24) Bit resolution
Auto self calibration zero point and final value
Absolute exactness radical error ±0,1 % (± 0,01 %)
Onboard power supply 2V5, 5 V, 7V5, 10 V und 12 V

Technical data strain gauge DMS

Number of inputs1
Cable length, shielded200
Rated load voltageDC 24 V
Reverse polarity protection of rated load voltage
Current consumption from load voltage L+ (without load)85
Relative accuracy according to self-calibration+/-0.01%
Operational limit Usense+/-0.2%
Operational limit Usig+/-0.2%
Basic error limit Usense+/-0.1%
Basic error limit Usig+/-0.1%
Destruction limit voltagemax. 12V
External bridge supply possible-
Configurable bridge supply2.5V / max. 120mA
5V / max. 120mA
7.5V / max. 100mA
10V / max. 90mA
12V / max. 80mA
Resolution in bit24
Measurement principlesuccessive approximation
Basic conversion time1ms cycle, 10ms...330ms depending on the filter
Input filter HardwareLow pass 10kHz 3rd order
Input filter softwareDynamic IIR filter
configurable IIR filter 0.1Hz...1000Hz
configurable FIR filter 50Hz/60Hz
Initial data size4

Data for selection of the strain gauge DMS sensor

Bridge supply voltage EXC0...12V
Bridge differential voltage SIG+/-29mV
Rated output0.5...4mV/V
4 wire connection possible
6 wire connection possible
possible bridge configurationsymmetric full bridge


Input bytes5
Output bytes1
Parameter bytes30
Diagnostic bytes20


MaterialPC / PPE GF10
MountingProfile rail 35 mm

Mechanical data

Dimensions (WxHxD)12.9 mm x 109 mm x 76.5 mm
Net weight64 g
Weight including accessories64 g
Gross weight78 g

Environmental conditions

Operating temperature0 °C to 60 °C
Storage temperature-25 °C to 70 °C


UL certificationyes
KC certificationin preparation