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Keyence RC2-21K
72-mm□ 5-digit 7-segment LED, One-stage Preset, AC Power Supply. RC2-21K. Series: LCD Display Electronic Preset Counter. Series code: RC series
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Description
72-mm□ 5-digit 7-segment LED, One-stage Preset, AC Power Supply. RC2-21K. Series: LCD Display Electronic Preset Counter. Series code: RC series
Specification
| Model Name | 72-mm□ 5-digit 7-segment LED, One-stage Preset, AC Power Supply |
|---|---|
| Model Code | RC2-21K |
| Series Title | LCD Display Electronic Preset Counter |
| Series Code | RC series |
| Data Sheet URL | https://www.keyence.com/download/download/confirmation/?dlSeriesId=WS_SR_rc&dlModelId=PM_035221K&dlSiteId=1&dlLanguageId=en-US&dlLangType=en-US |
| Model | 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 - A | 1 to 99 is counted per pulse input |
| Prescale function - B | 1 is counted per 1 to 99,999 pulse inputs |
| Power off memory time | Approx 10 years (at 20°C 68°F) |
| Input | 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) |
| Control output - Relay | 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 |
| Rating - Power voltage | 100 to 240 VAC ±10 %, 50/60 Hz |
| Rating - Power consumption | 12VA or less |
| Environmental 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 |
| Environmental resistance - Relative humidity | 35 to 85 % RH (No condensation) |
| Environmental resistance - Withstand voltage | 500 VAC for 1 minute (between all the external terminals and the case) |
| Weight | Approx. 320 g |
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