4225B, PR Electronics Universal f/I-f/f converter Series Frequency / Current Converter, Current, Frequency Input, Relay Output

The PR Electronics universal f/I-f/f converter with 2 relay outputs is a front programmable device. It measures frequencies up to 100 kHz. It has universal power supply 21.6 to 253 VAC / 19.2 to 300 VDC and active and passive current output of ±23 mA / 23 mA. All terminals are over-voltage protected, polarity protected and short-circuit protected. Input is NAMUR, NPN, PNP, tacho, TTL & S0 and output is programmable bipolar mA / V, frequency or relay. Units can be mounted side by side, horizontally and vertically, without air gap on a standard DIN rail even at 60°C ambient temperature.

Programmable trigger levels -0.05 to 6.5 V
Programmable sensor supply 5 to 17 V
NAMUR sensor error detection
Accuracy < 0.06% / span
Temperature coefficient 0.006% / °C
Response time < 30 ms
2.3 kVAC, 3-port galvanic isolation

Datasheet - 4225B

Instruction sheet - 4225B