B&R X20AI2437

Name: B&R X20AI2437
Brand: B&R Industrial Automation
SKU: X20AI2437

2 analog current measurement inputs Electrically isolated analog channels Electrically isolated sensor supplies 16-bit digital converter resolution NetTime timestamp: Moment of measurement The module is equipped with 2 current measurement inputs with 16-bit digital converter resolution. Each current measurement input has its own sensor supply. The two channels with their respective sensor supplies are electrically isolated from each other. The user can select between the two measurement ranges 4 to 20 mA and 0 to 25 mA.

Lifecycle & replacement

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Technical specifications

Short description

I/O module

2 analog inputs 4 to 20 mA or 0 to 25 mA

General information

Diagnostics / Module run/error	Yes, using LED status indicator and software
Diagnostics / Inputs	Yes, using LED status indicator and software
Diagnostics / Sensor power supply	Yes, using LED status indicator and software
Power consumption / Bus	0.05 W
Power consumption / Internal I/O	1.15 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 / DNV	Temperature: B (0 to 55°C) Humidity: B (up to 100%) Vibration: B (4 g) EMC: B (bridge and open deck)
Certifications / CCS	Yes
Certifications / LR	ENV1
Certifications / KR	Yes
Certifications / ABS	Yes
Certifications / BV	EC33B Temperature: 5 - 55°C Vibration: 4 g EMC: Bridge and open deck
Certifications / KC	Yes
B&R ID code	0xB784
Status indicators	I/O function per channel, operating state, module status, sensor power supply per channel
Additional power dissipation caused by actuators (resistive) [W]	-

Analog inputs

Output format / 4 to 20 mA	INT 0x0000 - 0x7FFF / 1 LSB = 0x0001 = 488.281 nA
Output format / 0 to 25 mA	INT 0x0000 - 0x7FFF / 1 LSB = 0x0001 = 762.939 nA
Output format / 0 to 25000 µA	INT 0x0000 - 0x61A8 / 1 LSB = 0x0001 = 1000 nA
Max. error / Gain / 0 to 25 mA	<0.046%
Max. error / Gain / 4 to 20 mA	<0.046%
Max. error / Offset / 0 to 25 mA	<0.004%
Max. error / Offset / 4 to 20 mA	<0.013%
Common-mode rejection / DC	80 dB
Common-mode rejection / 50 Hz	Depends on the sampling rate: e.g. >130 dB for 50 samples per second
Input filter / Hardware	First-order low-pass filter / cutoff frequency 2.5 kHz
Input filter / Software	Sinc⁴ filter
Max. gain drift / 0 to 25 mA	0.003 %/°C
Max. gain drift / 4 to 20 mA	0.003 %/°C
Max. offset drift / 0 to 25 mA	0.0002 %/°C
Max. offset drift / 4 to 20 mA	0.0007 %/°C
Test voltage / Channel - Channel	1000 VAC
Test voltage / Channel - Bus	1000 VAC
Test voltage / Channel - Ground	1000 VAC
Input	4 to 20 mA or 0 to 25 mA configurable using software
Input type	Differential input
Digital converter resolution	16-bit
Data output rate	4.7 to 960 samples per second, configurable using software
Output format	INT
Load	I_IN ≥ 0.1 mA: R < 8000 Ω I_IN ≥ 1 mA: R < 1100 Ω I_IN ≥ 4 mA: R < 510 Ω
Input protection	Up to 30 VDC, reverse polarity protection (max. 0.1 A)
Open-circuit detection	Yes, using software
Permissible input signal	0 to 25 mA
Output of digital value during overload	Configurable
Conversion procedure	Sigma-delta
Common-mode range	0 to 7 V
Nonlinearity	<0.003%

Sensor power supply

Max. voltage ripple / Up to 100 kHz	≤2.2 mV
Max. voltage ripple / Up to 1 MHz	≤22 mV
Max. voltage ripple / Higher	≤100 mV
Short-circuit current / Typical	<50 mA
Short-circuit current / Maximum	60 mA
Power consumption	0.75 W per channel
Nominal voltage	25 V ±2%
Nominal output current	Max. 30 mA
Short-circuit proof	Yes, continuous
Behavior on short circuit	Current limiting

Electrical properties

Electrical isolation

Channel isolated from channel and bus Sensor power supply isolated from sensor power supply Sensor power supply not isolated from channel

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 / Operation / Horizontal mounting orientation	-25 to 60°C
Temperature / Operation / Vertical mounting orientation	-25 to 50°C
Temperature / Derating	-
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

Documentation & CAD

Files hosted by B&R Industrial Automation; links open the official download page.

Datasheets

Data sheet X20AI2437(de)
Data sheet X20AI2437(en)

Manuals

3D CAD models

ECAD / EPLAN

X20 EPLAN P8 from V2.4

Certificates

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Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.