B&R X20AT2222

Product Introduction X20AT2222 is a thermocouple input module from the B&R X20 system. The card acquires 2 channels of thermocouple signals with built-in cold junction compensation for temperature measurement in process and machine applications.

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Description

B&R X20AT2222

Technical Specifications

  • Product type: Thermocouple input
  • Channels: 2
  • Sensor: Type J, K, etc.
  • Resolution: 16 bit
  • Cold junction: Internal
  • Supply: X20 bus
  • Operating temperature: -25 °C to +70 °C
  • Storage temperature: -40 °C to +85 °C
  • Humidity: 5 % to 95 %, non-condensing
  • Protection: IP20
  • Installation: X20 bus
  • Accuracy: 0.1 class
  • Diagnosis: Wire break

Functional Features

  • 2 channel thermocouple
  • Cold junction compensation
  • Wire break diagnosis
  • X20 bus communication
  • Per channel LED
  • Wide temperature
  • Galvanic isolation
  • Fast sampling
  • Configurable sensor type
  • Process grade

Application Scenarios

  • Plastics machine temperature
  • Packaging oven
  • Food processing
  • HVAC
  • Test chamber

Materials and Construction

  • Housing: X20 plastic
  • PCB: FR4
  • Terminal: Screw / spring
  • Connector: Bus
  • LED: Status
  • Base: X20

Structural Features

  • X20 thin module
  • Bus base
  • Front terminals
  • LED status
  • Internal ADC
  • Clip

Working Principle Thermocouple voltage amplified and digitized. Cold junction sensor compensates. X20 bus uploads to CPU. Wire break detected.

Installation Requirements

  • Clip on X20 bus
  • Connect thermocouple
  • Ground
  • Temperature -25 °C to +70 °C
  • Configure sensor type
  • Verify channels
  • Tighten terminals

Precautions

  • Thermocouple extension wire
  • Polarity
  • ESD
  • Store dry
  • Periodic calibration
  • Isolation