Universal 1-channel Programmable 2-wire Transmitters

IPAQ-21LX is a 1-channel, universal, isolated 2-wire transmitter for Ex-applications.
No zener barriers or Ex power supplies are needed, which reduces costs for purchase, design and maintenance.
IPAQ-21L is a 1-channel version for non-Ex-applications.

  • Very cost effective Ex-solution
  • Fully universal, linearized and isolated
  • Accepts RTD, T/C, mV and Ω
  • Sensor error and system (sensor/transmitter) error correction for
    highest total accuracy
  • Full access to all features while in operation
  • NAMUR compliant
  • Consistent sensor break function
  • Simplified loop check-up with calibration output
  • IPRO, easy-to-use Windows configuration software
  • Fixed terminals or plug-in terminals with coding

Technical specification

Type Rail-mounted
Input RTD, Thermocouple, Universal
Input RTD Pt100, Pt1000, Ni100, Ni120, Ni1000, Cu10
Input Thermocouple Type B, C, E, J, K, L, N, R, S, T, U
Type Of Transmitter Digital
Output 4-20 mA
Isolation Isolated
Measuring channels 1 channel
Sensor connection 3-, 4-wire connection
Power supply 8 to 36 VDC
Approvals ATEX
Typical accuracy 0.1% of span



  • PC-configurations kit