LCD Display Electronic Preset Counter

RC series

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72-mm□ 5-digit 7-segment LED, One-stage Preset, AC Power Supply RC2-21K




Operation method

Addition, subtraction, addition and subtraction

Operation mode

Overcount, auto reset, rotary, range distinction

Return method

Manual reset, external reset, automatic reset (in auto reset mode)

Display power

7-segment LED (character height: 14 mm)

Number of digits

5-digit display (zero suppression method), -9,999 to 99,999*1

Prescale function


1 to 99 is counted per pulse input


1 is counted per 1 to 99,999 pulse inputs

Power off memory time

Approx 10 years (at 20°C 68°F)



Separate, instruction, phase difference

Mounting method

Panel mount (embedding)

External calibration input signal


No-voltage input (with contacts, without contacts [count input, inhibit input, reset input])

Highest counting speed

With contacts: 50 Hz, without contacts: 500 Hz, 5 kHz, 50 kHz (switchable; 1:1 ON:OFF ratio)

Control output

One-shot output time

0.01 s to 9.99 s (variable)


Relay output: 13 ms (when set to 50 Hz), 4 ms (when set to 500 Hz), 4 ms (when set to 5 kHz), 4 ms (when set to 50 kHz)

DC output

12 VDC ± 10%, 100 mA maximum


Power voltage

100 to 240 VAC ±10 %, 50/60 Hz

Power consumption

12VA or less

Environmental resistance

Insulation resistance

100 MΩ or more (tested with a 500 VDC megger) between all the AC external terminals and the case

Noise resistance

Square wave noise generated by a noise simulator, between the power supply terminals, 1 kV for 1 µs

Environmental resistance

Ambient temperature

0 to +50 °C 32 to 122 °F

Relative humidity

35 to 85 % RH (No condensation)

Withstand voltage

500 VAC for 1 minute (between all the external terminals and the case)


Approx. 320 g

*1 Display uses the zero suppression method.

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