- el21systems@gmail.com
The CTR Series is a multifunction digital instrument designed for event counting, time totalising, and rate indication applications. It supports proximity sensors, contact switches, and optional AC pulse inputs, offering high accuracy, long-term data retention, and flexible configuration for industrial automation and monitoring systems.
High accuracy: ±0.05% of Full Scale Deflection (FSD)
Sensor supply: 12V DC (±10%) @ 30mA
Non-volatile flash memory with retention up to 10 years
Front key reset and remote reset via rear terminals
Hold function (optional)
Leading zero enable / disable
Scalar function (multiply / divide) for counter mode
Selectable resolution for rate indicator
| DESCRIPTION | CTR-33 | CTR-44 | CTR-88 | CTR-77 | CTR-99 | Display Color |
|---|---|---|---|---|---|---|
| Display Height | 0.39″ | 0.30″ | 0.56″ | 0.39″ | 0.56″ | White |
| Display | 6 Digit, 7 segment LED (Bright White) | |||||
| Control Input | a) Proximity Switch (PNP / NPN) b) Potential free contact (Limit switch) c) 230VAC input pulse (Optional) |
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| Reset | a) Front Key (Programmable) b) Remote Reset (Via Rear terminals) |
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| Setting | Through Keyboard | |||||
| Memory | Non Volatile (Flash) | |||||
| Memory Retention | Up to 10 Years | |||||
| Mains Supply | 90 to 270VAC | |||||
| Sensor Supply | 12VDC (±10%) @ 30mA | |||||
| Accuracy | 0.05% FSD | |||||
| Mounting | Panel Mounting | |||||
| Housing | Abs Plastic | |||||
| Operating Temp. | 0 to 55°C | |||||
| Relative Humidity | Below 95% RH (Non Condensing) | |||||
| Dimensions | See Table no.1 on Page 2 | |||||
| Configuration Parameter:- | ||||||
| Type | a) As Event Counter b) As Time Totaliser c) As Rate Indicator |
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| Range | a) AC / DC (Selective) (For Event Counter) b) Auto / Manual (Selective) (For Time Totaliser & Rate Indicator) |
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| Resolution | a) 0.01 b) 0.1 c) 1 (For Rate Indicator) | |||||
| Max. Range | a) 1 to 999999 Counts (For Counter) b) See Table 2 (For Time Totaliser) c) 4 to 9999 RPM (For rate Indicator) |
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| Front Reset | Enable / Disable (Selective) | |||||
| Memory | Enable / Disable (Selective) | |||||
| Hold | Enable / Disable (Selective) (Optional) | |||||
| Leading Zero | Enable / Disable (Selective) | |||||
| Scalar | Multiply / Division (Selective) (for Counter) | |||||
| Filter | 1 to 10 (Selective) (for Rate Indicator) | |||||
| Ratio | 1 to 99 (Selective) (for Rate Indicator) | |||||
