4222 – Universal I/f converter


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Available on back-order

SKU: PRE4222 Categories: ,
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Quick Overview:

  • Input for RTD, TC, Ohm, potentiometer, mA and V
  • Frequency output NPN, PNP and TTL
  • Generates frequencies from 0.001…25000 Hz
  • 2-wire supply > 16 V
  • Universal AC or DC supply

Advanced features:

  • Programmable via detachable display front (4501), process calibration, signal simulation, password protection, error diagnostics and selection of help text in several languages.


  • Linearized, electronic temperature measurement with RTD or TC sensor.
    Conversion of linear resistance variation to a frequency signal, e.g. from solenoids and butterfly valves or linear movements with attached potentiometer.
    Power supply and signal isolator for 2-wire transmitters.
  • Process control by way of a frequency signal transmitted to e.g. a PLC or a process computer.
  • Galvanic separation and conversion of analog signals to frequency signals.


Available on backorder. Allow an extra 3 - 5 days for this product