
The PR 5725 Programmable Frequency Indicator is a high-performance industrial display for accurate readout, scaling, and conversion of frequency and pulse signals from field sensors. This versatile frequency display indicator supports a wide input range from 0.001 Hz up to 50 kHz, thus making it ideal for speed measurement, flow rate monitoring, and period time analysis in manufacturing, water / wastewater, and automation systems. The 5725, from PR electronics, can accept signals from NPN/PNP, NAMUR, S0, tacho, and TTL sensor types. It then processes these signals into clear digital values on a bright 4-digit, 14-segment LED display scalable from -1999 to 9999.
- The PR 5725 measures, scales, and displays frequency signals found in many process speed and flow rate applications.
- This programmable frequency indicator can measure the period of the frequency, useful for displaying the elapsed time between events.
- The 5725D model has two SPDT setpoint contacts and a 0/4-20 mA output for process control.
- The display provides IP65 environmental sealing, and additional protection is provided by the optional PR 8335 splash-proof cover.
- Also available with PR 8501 Field Enclosure for extra protection.
PR 5725 Programmable Frequency Indicator from PR electronics
Built with universal power input (21.6-253 VAC or 19.2-300 VDC) and robust IP65 front panel protection, the 5725 is suitable for harsh industrial environments. The 5725D model includes two SPDT relay outputs and a programmable 0/4-20 mA analog output for process control, alarm functions, or loop integration. With excellent accuracy (<0.05 % of range) and fast response, the PR 5725 Programmable Frequency Indicator is a dependable solution for frequency indication and control applications in industrial automation and process monitoring systems.
- 4-digit display with 13.8 mm high, 14-segment LED digits and adjustable decimal point.
- This Programmable Frequency Indicator is scalable from -1999 to 9999.
- Scrolling help text makes programming easy.
- Customizable trigger levels allow measurement of nearly any pulse sensor.
- Built-in excitation source for measuring NPN, PNP, NAMUR, and S0 sensors.
- Fast response time of 1 cycle + 100 ms, and excellent accuracy of better than 0.05% of selected range.
- The analog output current on the 5725D can be dampened from 0.1 to 60 seconds, and can handle up to 800 Ohms loop load.
- The 5725 meets NAMUR NE21 recommendations for high performance in harsh EMC environments.
- 2.3 kVAC galvanic isolation between input, output, and supply.
- Excellent signal/noise ratio of > 60dB.
Easy Mounting, Installation, and Programming
Its user-friendly front-panel programming with scrolling help text makes setup fast without tools, while 2.3 kVAC galvanic isolation between input, output, and supply ensures reliable performance in electrically noisy environments.
- Easy to mount 1/8 DIN (48x96 mm) panel meter with IP65 (type 4X) sealing.
- Features approval for marine applications.
- Fully push-button programmable.
- Password-protected.

Models of the PR 5725 Programmable Frequency Indicator
| Model ID | Configuration |
|---|---|
| PR 5725A | Digital Input; 4-Digit; Isolated. |
| PR 5725D | Digital Input; 4-Digit; Isolated; mA Output; 2 SPDT Relay Outputs. |
Special Order Options (Adders)
| Part Number Extension | Description |
|---|---|
| PR 8335 | Splash-Proof Cover. |
| PR 8501A | Field Enclosure; Aluminum; 1 Gland. |
| PR 8501B | Field Enclosure; Aluminum; 2 Glands. |
| PR 8501C | Field Enclosure; Aluminum; 3 Glands. |
| PR 8501D | Field Enclosure; Aluminum; 4 Glands. |
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