B&R X20AI1744 NEW

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X20AI1744 NEW

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SKU : X20AI1744
Brand : B&R
Material number:
  • 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.

State: New
Specification :
Short description
I/O module 1 full-bridge strain gauge input
General information
B&R ID code 0x1CDE
Status indicators Channel status, operating state, module status
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 0.01 W
Internal I/O 0.5 W
Additional power dissipation caused by actuators (resistive) [W] Max. +0.36
CE Yes
ATEX Zone 2, II 3G Ex nA nC IIA T5 Gc
IP20, Ta (see X20 user's manual)
FTZÚ 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 kHz
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
Output of digital value
Broken bridge supply line Value approaching 0
Broken sensor line Value approaching ±end value (status bit "Line monitoring" is set in register "Module status")
Valid range of values 0xFF800001 to 0x007FFFFF (-8,388,607 to 8,388,607)
Strain gauge supply
Voltage 5.5 VDC / Max. 65 mA
Short-circuit and overload-proof Yes
Voltage drop for short-circuit protection Max. 0.2 VDC at 65 mA and 25°C
LSB value (16-bit)
2 mV/V 336 nV
4 mV/V 671 nV
8 mV/V 1.343 µV
16 mV/V 2.686 µV
32 mV/V 5.371 μV
64 mV/V 10.74 μV
128 mV/V 21.48 μV
256 mV/V 42.97 μV
LSB value (24-bit)
2 mV/V 1.31 nV
4 mV/V 2.62 nV
8 mV/V 5.25 nV
16 mV/V 10.49 nV
32 mV/V 20.98 nV
64 mV/V 41.96 nV
128 mV/V 83.92 nV
256 mV/V 167.85 nV
Max. gain drift 12 ppm/°C
Max. offset drift 2 ppm/°C
Nonlinearity <10 ppm
Electrical properties
Electrical isolation Bus isolated from analog input and strain gauge supply voltage
Channel not isolated from I/O power supply
Operating conditions
Mounting orientation
Horizontal Yes
Vertical Yes
Installation elevation above sea level
0 to 2000 m No limitation
>2000 m Reduction of ambient temperature by 0.5°C per 100 m
Degree of protection per EN 60529 IP20
Ambient conditions
Horizontal mounting orientation -25 to 60°C
Vertical mounting orientation -25 to 50°C
Derating See section "Hardware configuration"
Storage -40 to 85°C
Transport -40 to 85°C
Relative humidity
Operation 5 to 95%, non-condensing
Storage 5 to 95%, non-condensing
Transport 5 to 95%, non-condensing
Mechanical properties
Note Order 1x terminal block X20TB12 separately.
Order 1x bus module X20BM11 separately.
Pitch 12.5+0.2 mm
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B&R X20AI1744 NEW