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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | TimeMark |
| Manufacturer Product Number | 661 |
| Description | Special Control; 24 V DC ±5%, 30mA maximum; Socketable |
| Datasheet | Download Datasheet |
The TimeMark 661 is a 4-20 mA alarm control for a 24 V DC ±5%, 30mA maximum supply. It watches a 4-20 mA loop and drops out a high or low alarm relay (fail-safe) outside its set points.
Contacts: 2 x SPDT (high alarm, low alarm). Inputs: 4-20mA current loop, 50 ohms input resistance. Input: 4-20 mA; 50 ohm. Set points: HIGH ADJUST: 4-20mA; LOW ADJUST: 4-20mA. Output: 10 A at 240 V AC resistive. Reset: automatic. Indicators: top-mounted LEDs: HIGH ALARM, LOW ALARM (turn OFF when tripped), INPUT LOOP ERROR. Life: 10,000,000 operations mechanical, 100,000 electrical.
Mounting: plug-in, on an 11-pin octal (TimeMark 51X016 socket) base. Dimensions: 3.52" x 1.75" x 2.44". It operates from -25 to +50 °C.
| Category | |
| Manufacturer | TimeMark |
| Control Function | Alarm control: watches a 4-20 mA loop and drops out a high or low alarm relay (fail-safe) outside its set points |
| Input Voltage | 24 V DC ±5%, 30mA maximum |
| Inputs | 4-20mA current loop, 50 ohms input resistance |
| Input Signal | 4-20 mA; 50 ohm |
| Set Points | HIGH ADJUST: 4-20mA; LOW ADJUST: 4-20mA |
| Contact Configuration | 2 x SPDT (high alarm, low alarm) |
| Output Rating | 10 A at 240 V AC resistive |
| Reset Method | Automatic |
| Status Indicator | Top-mounted LEDs: HIGH ALARM, LOW ALARM (turn OFF when tripped), INPUT LOOP ERROR |
| Mounting Type | Socketable |
| Termination Style | Plug In, 11 Pin (Octal) |
| Socket Family | 11 Pin Octal (TimeMark 51X016 socket) |
| Dimensions | 3.52" x 1.75" x 2.44" |
| Mechanical Life | 10,000,000 (100,000) |
| Operating Temperature (°C) | -25...+50 |