Pre select counter/ high frequency monitor dislay and count a pre-set number of pulses dislay and monitor frequencies up to 10000Hz


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This device may be configured for counting or frequency monitoring functions.
Using the "save" function, the state of the counter is saved to non-volatile memory during power failures. This allows the device to continue from where it left off before the power was removed.
A 10V - 24V DC supply (± 30mA) is included for use with NPN proximity switches.
Pulses can be acknowledged when the pulse pins are either shorted OR released.
A pre-scaler of up to 200 is included. (the device reads the "pre scale" amount of pulses before updating the counter value).
The post-scaler multiplies the pulses received by up to 200.
Pulses may be displayed as lapsed (up-counting), remaining (down counting) or frequency (even if configured for counting).
Using the reset timer the device can automatically be reset between 0.1 and 99.9 seconds after the pre-set number of pulses have been counted. This eliminates the need to generate reset pulses manually.


  • relay operates (or gives a pulse) upon reaching the pre-set number of pulses
  • reversed relay action to open contacts when count is reached
  • interfaces with NPN proxy, photo switches (10-30V 30mA power supply included)
  • select leading or trailing edge of pulse (when pulse open or closes)
  • reset via external pulse or BUILT-IN timer (0.1 - 99.9sec after count is reached)
  • pre-scaler divedes pulses automatically (one item = multiple pulses)
  • post scaler multiplies pulses automatically (multiple items = 1 pulse)
  • display lapsed or remaining pulses
  • selectable save status (after power failure, device can either continue from where it left or reset)
  • configurable to monitor frequency of pulses
  • keypad lock


FUNCTION:                                                        counter/frequency
SET POINT:                                                       1-49999 pulses
RELAY OUTPUT:                                                continous/pulse
REVERSE RELAY (relay status after counting): open/close
PRE-SCALE (pulses/count):                             1-200 pulses
POST-SCALE (count/pulses):                            1-200
INPUT PULSE SPEED:                                        mechanical/fast
PULSE EDGE (leading/trailing):                        close/open


Input range:                           0-9999 pulses,0-9999 RPM,0-5000Hz, 0-9999 pulses per hour
Maximum display value:         9999
Pre-scale:                               1-1000 pulses
Post-scale:                             1-1000
Decimal pointer:                     9999, 9.999, 99.99, 999,9
Accuracy:                                Counter mode : 100%
Freq, RPM,PPh : ±0.05%
Display Resolution:                Counter: 0.001 to 9999
Freq, RPM, PPh: 1
Input voltage:                         ±15% of rated voltage
Led indication:                        Relay status
Reset time:                             0.5 sec (power supply reset) 0.05 sec (reset pulse)
Response time:                       Counter: <0.02s
Freq, RPM, PPh: <1.1s
Input frequency                      “FASt”: 0-8000 Hz “SLO”: 0-5 Hz

Pulse source type mechanical switch or NPN proximity

All parameters are saved to non-volatile eeprom memory, thus eliminating the need to re-program after a power failure

incorporates a crystal oscillator to maintain accurate timing

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