Universal Frequency Converter 4225

Model : PR 4225B
Brand: PR Electronics

Conversion of frequency into standard Digital or Analog signals
Frequency input measurement range: 0.001Hz to 100kHz
Input sensors: NAMUR, NPN, PNP, Tacho, TTL & S0
Relay output functions: Setpoint, Window, Sensor error, Latch, Power and Off
DC Current and Voltage output
NPN / PNP / Push-Pull output
Frequency output range: 0.001Hz…100kHz
Programming and process monitoring via PR 4500 display series
3kVAC galvanic isolation
Fast response time < 30ms
Universally powered by 21.6…253 VAC / 19.2…300 VDC
Download the manuals and Get

Share as :

Functional highlights

  • Measures frequencies up to 100 kHz.
  • Active and passive current output ±23 mA / 0…23 mA.
  • Buffered voltage output ±10 VDC.
  • Linearization: Linear or square root function.
  • 2-point process calibration.
  • Programmable trigger levels -0.05…6.5 V.
  • Programmable sensor supply 5…17 V.
  • NAMUR sensor error detection.
  • Advanced configurable input limits for increased safety.
  • Digital output: NPN & PNP; 0…100 kHz with programmable logic level 5…24 V.
  • Output relay with windows, setpoint, and latch functionality.
  • Simulation of process value during commissioning and maintenance.
  • All terminals are over-voltage protected (24 VDC), polarity protected, and short-circuit protected.

Technical highlights

  • Accuracy < 0.06% / span.
  • Temperature coefficient 0.006% / °C.
  • Response time < 30 ms.
  • 2.3 kVAC, 3-port galvanic isolation.
  • NAMUR NE21 and NE43.

Programming

  • Configuration, monitoring, and diagnostics using the PR 4500 detachable communication interfaces. Product-specific functionality includes communication via Modbus and Bluetooth using our PR Process Supervisor (PPS) application, available for iOS and Android.
  • All programming can be password protected.
  • Scrolling helps text in 7 languages.

Mounting

  • Units can be mounted side by side, horizontally and vertically, without an air gap on a standard DIN rail – even at 60°C ambient temperature.

Source: PR4225 Official Page

Product Documents:

Certifications:

PR Electronics Solutions: