B&R X20AI2438
2 analog current measurement inputs Integrated HART protocol Supports HART variables Electrically isolated analog channels Electrically isolated sensor supplies 16-bit digital converter resolution NetTime timestamp: Moment of measurement, HART image The module is equipped with 2 current measurement inputs with 16-bit digital converter resolution. It supports the HART communication standard for data transfer, parameter configuration and diagnostics. 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.
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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 |
| Diagnostics / HART link | Yes, using LED status indicator and software |
| Diagnostics / HART error | 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 | 0xB3A9 |
| Status indicators | I/O function per channel, operating state, module status, sensor power supply per channel, HART |
| Additional power dissipation caused by actuators (resistive) [W] | - |
Analog inputs
| Data output rate / With HART | 4.7 to 10 samples per second, configurable using software |
| Data output rate / Analog | 4.7 to 100 samples per second, configurable using software |
| 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 100 Hz |
| 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 |
| 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 |
HART
| Multi-drop operation / Possible | Yes |
| Multi-drop operation / Stations | 5 nodes (when using HART slaves with a nominal current of 4 mA) Up to 15 (taking into account the maximum permissible input signal of 25 mA) |
| Transmission amplitude / Minimum | 400 mVpp |
| Transmission amplitude / Typical | 500 mVpp |
| Transmission amplitude / Maximum | 600 mVpp |
| Receiving amplitude / Minimum | 120 mVpp |
| Receiving amplitude / Maximum | 800 mVpp |
| Transfer rate | 1200 bit/s |
| Operating frequencies | 1200 Hz / 2200 Hz |
| Burst operation possible | Yes |
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
Manuals
ECAD / EPLAN
Certificates
- 2226379 CSA Certificate of Compliance X20 X67
- 64331_A1 BV Certificate of Compliance X20
- 64331_A1 BV Certificate of Compliance X20(de)
- ABS Certificate of Product Design Assessment - X20 IO Series
- CCS Type Approval Certificate - X20
- E115267 UL Certificate of Compliance X20
- EU Data Act - X20 IO - Connected Product Information Notice
- EU Declaration ATEX X20
- EU Declaration of conformity PLC X20
- FTZU 09 ATEX 0083X
- KR Type Approval Certificate MIL39390-AC003 (X20 System)
- Lloyds Register (X20 only)
Get a quote for a replacement
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Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.