PR Electronics 5725 Programmable Frequency Indicator

Features

  • Measures NPN, PNP, Contact, NAMUR, S0, Tacho and TTL sensors
  • Programmable frequency input span of 0.001 Hz to 50 kHz
  • The 5725D has two SPDT relays and one analog output
  • Easy to read 4-digit, 14-segment LED display with scrolling help text
  • Universally powered by 21.6…253 VAC or 19.2… 300 VDC
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PR Electronics 5725 Programmable Frequency Indicator is designed for measuring, scaling, and displaying frequency signals commonly found in process speed and flow rate applications. It can also measure the period of frequency, making it useful for displaying the elapsed time between events. PR Electronics 5725D model includes additional features for process control.

Applications

  • Frequency Signal Display: Measures, scales, and displays frequency signals in process speed and flow rate applications.
  • Period Measurement: Can measure the period of frequency to display elapsed time between events.
  • Process Control: The 5725D model includes two SPDT setpoint contacts and a 0/4…20 mA output for enhanced process control.

Technical Characteristics

  • 4-Digit LED Display: Features a 4-digit display with 13.8 mm high, 14-segment LED digits and an adjustable decimal point.
  • Scalable Display: The indicator is scalable from -1999 to 9999.
  • Easy Programming: Scrolling help text simplifies programming.
  • Customizable Trigger Levels: Allows measurement of nearly any pulse sensor.
  • Excitation Source: Built-in excitation source for measuring NPN, PNP, NAMUR, and S0 sensors.
  • Fast Response Time: Offers a fast response time of 1 cycle + 100 ms.
  • High Accuracy: Ensures excellent accuracy better than 0.05% of the selected range.
  • Analog Output Damping: The analog output current on the 5725D can be dampened from 0.1 to 60 seconds, handling up to 800 Ohms loop load.
  • High Performance: Meets NAMUR NE21 recommendations for high performance in harsh EMC environments.
  • High Galvanic Isolation: Provides 2.3 kVAC galvanic isolation and an excellent signal/noise ratio of >60 dB.

Mounting / Installation / Programming

  • Panel Mounting: Easy to mount 1/8 DIN (48×96 mm) panel meter with IP65 (type 4X) sealing.
  • Marine Approved: Approved for marine applications.
  • Push-Button Programmable: Fully programmable via push-buttons.
  • Password Protection: Offers password protection for secure configuration.

PR Electronics 5725 Programmable Frequency Indicator is an ideal solution for industries requiring accurate and reliable frequency signal measurement and display, with advanced features for process control and robust performance in harsh environments.

Specification

ENVIRONMENTAL CONDITIONS
Operating temperature -20°C to +60°C
Storage temperature -40°C to +85°C
Calibration temperature 20…28°C
Relative humidity < 95% RH (non-cond.)
Protection degree IP20
Protection degree (mounted in panel) IP65 / Type 4X
Installation in Pollution degree 2 & meas. / overvoltage cat. II
MECHANICAL SPECIFICATIONS
Dimensions (HxWxD) 48 x 96 x 120 mm
Cut out dimensions 44.5 x 91.5 mm
Weight approx. 230 g
Wire size, pin 11-12 & 41-44, max. 1 x 1.5 mm2/ AWG 30…16 stranded wire
Wire size, others, max. 1 x 2.5 mm2/ AWG 30…12 stranded wire
Terminal connection Spring-cage
Vibration IEC 60068-2-6
2…13.2 Hz ±1 mm
13.2…100 Hz ±0.7 g
COMMON SPECIFICATIONS
Supply
Supply voltage, universal 21.6…253 VAC, 50…60 Hz or 19.2…300 VDC
Max. required power < 2.8 W (5725A) < 3.6 W (5725D)
Isolation voltage
Isolation voltage, test / working 2.3 kVAC / 250 VAC
Response time
Response time (0…90%, 100…10%) < 1 period + 100 ms
Signal / noise ratio > 60 dB
Accuracy Better than 0.05% of selected range
EMC immunity influence < ±0.5% of span
Extended EMC immunity: NAMUR NE21, A criterion, burst < ±1% of span
INPUT SPECIFICATIONS
Frequency range, f/I conversion function 0.001 Hz to 50 kHz
Low cut-off frequency 0.0009 Hz (default value)
Max. frequency, with input filter ON 50 Hz
Time range, period time function 999.9 s to 20 μs
Low cut off period time (time-out) 1111 s
Min. period time with input filter ON 20 ms
Input types NAMUR acc. to EN 60947-5-6 Tacho
NPN / PNP
TTL
S0 acc. to DIN 43864
Special voltage
Special current
OUTPUT SPECIFICATIONS
Display
Display readout -1999…9999 (4 digits)
Decimal point Programmable
Digit height 13.8 mm
Display updating. 2.2 times / s
Display response time, programmable 0.0…60.0 s
Input outside input range is indicated by Explanatory text
Current output
Programmable signal ranges 0…20/4…20/20…0/20…4 mA
Load (@ current output) ≤ 800 Ω
Load stability ≤ 0.01% of span / 100 Ω
Current limit ≤ 28 mA
Sensor error indication 0 / 3.5 / 23 mA / none
Output limitation, on 4…20 and 20…4 mA signals 3.8…20.5 mA
Output limitation, on 0…20 and 20…0 mA signals 0…20.5 mA
Relay output
Relay functions Setpoint
Hysteresis, in % / display counts 0…100% / 0…9999
ON and OFF delay 0…3600 s
Power On delay 0…60 s
Sensor error reaction Break / Make / Hold
Max. voltage 250 VAC / VDC
Max. current 2:00 AM
Max. AC power 500 VA
Max. DC current, resistive load ≤ 30 VDC 2 ADC
Max. DC current, resistive load > 30 VDC See manual for details
OBSERVED AUTHORITY REQUIREMENTS
EMC 2014/30/EU
LVD 2014/35/EU
EAC TR-CU 020/2011
APPROVALS
DNV-GL Marine Stand. f. Certific. No. 2.4
EU RO Mutual Recognition Type Approval MRA000000Z
UL UL 508 / C22.2 no. 14

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