ABB X20AI1744-3 B&R full-bridge strain gauge input

Material number:

X20AI1744-3

Description:

1 full-bridge strain gauge input

Data output rate configurable from 0.1 Hz to 7.5 kHz

Special operating modes (synchronous mode and multiple sampling)

Configurable filter level

This module works with both 4-wire and 6-wire strain gauge load cells. The concept applied by the module requires compensation in the measurement system. This compensation eliminates the absolute uncertainty in the measurement circuit, such as component tolerances, effective bridge voltage or zero point offset. The measurement precision refers to the absolute (compensated) value, which will only change as a result of changes in the operating temperature.

Short description

I/O module 1 full-bridge strain gauge input

General information

B&R ID code 0xA4EF

Status indicators Channel status, operating state, module status

Diagnostics

Module run/error Yes, using LED status indicator and software

Open circuit Yes, using LED status indicator and software

Input Yes, using LED status indicator and software

Power consumption

Bus 0.01W

Internal I/O 0.5W

Additional power dissipation caused by actuators (resistive) [W] Max. +0.36

Certifications

CE Yes

UKCA Yes

ATEX Zone 2, II 3G Ex nA nC IIA T5 Gc

IP20, Ta (see X20 user's manual)

FTZU 09 ATEX 0083X

UL cULus E115267

Industrial control equipment

HazLoc cCSAus 244665

Process control equipment

for hazardous locations

Class I, Division 2, Groups ABCD, T5

KC Yes

Full bridge strain gauge

Strain gauge factor 2 to 256 mV/V, configurable using software

Connection 4- or 6-wire connections

Input type Differential, used to evaluate a full-bridge strain gauge

Digital converter resolution 24-bit

Conversion time depends on the configured data output rate

Data output rate 0.1 - 7500 samples per second, configurable using software (fDATA)

Input filter

Cutoff frequency 5 Hz

Order 3

Slope 60 dB

ADC filter characteristics Sigma-delta, see section "Filter characteristics of the sigma-delta A/D converter"

Operating range / Measurement sensor 85 to 5000 Ω

Influence of cable length See section "Calculation example".

Input protection RC protection

Common mode range 0 to 3 VDC

Permissible input voltage range (with regard to the electric potential strain gauge GND) on inputs "Input +" and "Input -"

Insulation voltage between input and bus 500 Veff

Conversion procedure Sigma-delta