Universal f/I-f/f converter

Model : PR 4225

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

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Catalogue
Specifications
Function

Digital to Analog Converter, Digital to Digital Converter, Frequency Converter

Brand

PR Electronics

Number of Inputs

1

Input Type

Contact, NAMUR, NPN, PNP, Pulse, Switch, Tacho, TTL

Number of Outputs

1

Output Type

DC Current, DC Voltage, NPN, PNP, Pulse, Relay

Interface

PR 4500 Modules

Protocol

MODBUS RTU

Transmission Rate

2400 to 115200 bit/s

Programming

4500 series devices

Accuracy

< 0.06% of span

Certification

UL

Power Supply

25…250VDC / 20…300VAC

Isolation Voltage

2.3 kVAC

Operating Temperature

-20 to +60°C

Temperature Coefficient

< ±0.01% of span /°C

Protection Degree

IP 20

Dimension

109×23.5×104 mm

Weight

160g

Other product features
Outputs

2xRelay, Analog + frequency, Analog + Relay

Weight

160 g

Dimensions

175 × 150 × 35 mm

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:

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