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B&R X20AI1744-3

I/O module, 1 full-bridge strain gauge input

MPN: X20AI1744-3
Category: Analog inputs

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What is the B&R X20AI1744-3?

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.

Specifications

Short description

I/O module

1 full-bridge strain gauge input

General information

Diagnostics – Module run/error	Yes, using LED status indicator and software
Diagnostics – Open circuit	Yes, using LED status indicator and software
Diagnostics – Input	Yes, using LED status indicator and software
Power consumption – Bus	0.01 W
Power consumption – Internal I/O	0.5 W
Certifications – CE	Yes
Certifications – UKCA	Yes
Certifications – CRA (Cyber Resilience Act)	In preparation
Certifications – ATEX	Zone 2, II 3G Ex nA nC IIA T5 Gc; IP20, Ta (see X20 user's manual); FTZÚ 09 ATEX 0083X
Certifications – UL	cULus E115267; Industrial control equipment
Certifications – HazLoc	cCSAus 244665; Process control equipment; for hazardous locations; Class I, Division 2, Groups ABCD, T5
Certifications – KC	Yes
B&R ID code	0xA4EF
Status indicators	Channel status, operating state, module status
Additional power dissipation caused by actuators (resistive) [W]	Max. +0.36 (note: Depends on the full-bridge strain gauge being used.)

Full-bridge strain gauge

Input filter – Cutoff frequency	5 Hz
Input filter – Order	3
Input filter – Slope	60 dB
Output of digital value – Broken bridge supply line	Value approaching 0
Output of digital value – Broken sensor line	Value approaching ±end value (status bit "Line monitoring" is set in register "Module status")
Output of digital value – Valid range of values	0xFF800001 to 0x007FFFFF (-8,388,607 to 8,388,607)
Strain gauge supply – Voltage	5.5 VDC / Max. 65 mA
Strain gauge supply – Short-circuit and overload-proof	Yes
Strain gauge supply – Voltage drop for short-circuit protection	Max. 0.2 VDC at 65 mA and 25°C
Quantization – 2 mV/V	336 nV (note: Quantization depends on the strain gauge factor.)
Quantization – 4 mV/V	671 nV (note: Quantization depends on the strain gauge factor.)
Quantization – 8 mV/V	1.343 µV (note: Quantization depends on the strain gauge factor.)
Quantization – 16 mV/V	2.686 µV (note: Quantization depends on the strain gauge factor.)
Quantization – 32 mV/V	5.371 μV (note: Quantization depends on the strain gauge factor.)
Quantization – 64 mV/V	10.74 μV (note: Quantization depends on the strain gauge factor.)
Quantization – 128 mV/V	21.48 μV (note: Quantization depends on the strain gauge factor.)
Quantization – 256 mV/V	42.97 μV (note: Quantization depends on the strain gauge factor.)
Quantization – 2 mV/V	1.31 nV (note: Quantization depends on the strain gauge factor.)
Quantization – 4 mV/V	2.62 nV (note: Quantization depends on the strain gauge factor.)
Quantization – 8 mV/V	5.25 nV (note: Quantization depends on the strain gauge factor.)
Quantization – 16 mV/V	10.49 nV (note: Quantization depends on the strain gauge factor.)
Quantization – 32 mV/V	20.98 nV (note: Quantization depends on the strain gauge factor.)
Quantization – 64 mV/V	41.96 nV (note: Quantization depends on the strain gauge factor.)
Quantization – 128 mV/V	83.92 nV (note: Quantization depends on the strain gauge factor.)
Quantization – 256 mV/V	167.85 nV (note: Quantization depends on the strain gauge factor.)
Strain gauge factor	2 to 256 mV/V, configurable using software
Connection	4- or 6-wire connectionsConnection examples")."> (note: With 6-wire connections, line compensation does not function (see section)
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 (f DATA )
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". (note: Sensor cable with twisted and shielded conductors, cable length as short as possible, cable routing separate from load circuits, without intermediate terminal to the sensor.)
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 V eff
Conversion procedure	Sigma-delta
Max. gain drift	12 ppm/°C (note: Based on the current measured value.)
Max. offset drift	2 ppm/°C (note: Based on the entire measurement range.)
Nonlinearity	<10 ppm (note: Based on the entire measurement range.)

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
Mounting orientation – Vertical	Yes
Installation elevation above sea level – 0 to 2000 m	No limitation
Installation elevation above sea level – >2000 m	Reduction of ambient temperature by 0.5°C per 100 m
Degree of protection per EN 60529	IP20

Ambient conditions

Temperature – Horizontal mounting orientation	-25 to 60°C
Temperature – Vertical mounting orientation	-25 to 50°C
Temperature – Derating	See section "Hardware configuration"
Temperature – Storage	-40 to 85°C
Temperature – Transport	-40 to 85°C
Relative humidity – Operation	5 to 95%, non-condensing
Relative humidity – Storage	5 to 95%, non-condensing
Relative humidity – 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

Accessories

Required accessories (order separately)

X20BM15	Bus modules — The bus module is the base for all X20 24 VDC I/O modules; The internal I/O supply is interconnected; Manual node number assignment; Indepe…
X20BM11	Bus modules — Bus module for 24 VDC I/O modules; The internal I/O power supply is connected through. The bus module is the base for all 24 VDC I/O module…
X20TB12	Terminal blocks — Tool-free wiring with push-in technology; Simple wire release using lever; Ability to label each terminal; Plain text labeling also possibl…

Downloads & documentation

Official documents from B&R, downloaded directly from the manufacturer.

Data sheets & manuals

CAD & dimension drawings

Certificates (8)

X20AI1744-3: frequently asked questions

When can X20AI1744-3 be shipped?

X20AI1744-3 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up X20AI1744-3 in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for X20AI1744-3 and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for X20AI1744-3, subject to availability and destination.