PR 4222 Universal I/f Converter

The PR 4222 Universal I/f Converter is a robust industrial signal converter that transforms a wide range of analog sensor inputs into reliable frequency outputs for process control, automation, and monitoring systems. It supports inputs from RTDs, thermocouples (TC), resistance (Ohm), potentiometers, as well as mA and voltage signals. Thus, the 4222, from PR electronics, is highly adaptable for linear measurement and signal processing applications.

• Programmable via detachable display front (PR 4500 series).
• Features 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, for example, 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, for example, a PLC or a process computer.
• Galvanic separation and conversion of analog signals to frequency signals.

PR 4222 Universal I/f Converter from PR electronics

The PR 4222 Universal I/f Converter has the capability to generate frequency outputs from 0 to 25,000 Hz in NPN, PNP, or TTL formats. Thus, the 4222 enables seamless integration with PLCs, data acquisition systems, and process computers that rely on frequency-based signal processing. Its universal AC/DC power supply range and compact design allow for flexible installation across diverse industrial environments. Continuous stored data checks and status indication via a front LED ensure operational reliability, while 3-port galvanic isolation (2.3 kVAC) delivers excellent noise immunity and signal integrity in harsh environments.

• When the 4222 is used in combination with the PR 4500 display / programming fronts, all operational parameters can adjust to suit any application. 
• As the PR 4222 features electronic hardware switches, it isn't necessary to open the device for setting of DIP switches.
• A green front LED indicates normal operation.
• Continuous check of vital stored data for safety reasons.
• 3-port 2.3 kVAC galvanic isolation.

Easy Mounting, Installation, and Programming

The PR 4222 Universal I/f Converter is compatible with a detachable PR 4500 series display for easy programming, process calibration, signal simulation and diagnostics without opening the unit, thus enhancing safety and convenience for technicians. Ideal for applications like temperature linearization, resistance-to-frequency conversion, and analog to frequency signal isolation, the PR 4222 is a versatile choice for industrial automation and control systems.

• FM Approval for hazardous locations: Nonincendive for Class I, Division 2, Groups A, B, C, and D Hazardous (Classified) Indoor Locations with a T5 temperature classification; and Nonincendive for Class I, Division 2, Group IIC Hazardous (Classified) Indoor Locations with a T5 temperature classification.