Product Description
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| Product Information | Resources |
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| Specifications |
| Product Attribute | Attribute Value |
| Operating Voltage | 24VDC ±5% |
| Supply Current | 30mA maximum |
| Input Signal | 4-20mA |
| Input Resistance | 50 ohms |
| Input Loop Error | High: 23-25mA Low: 2-3mA |
| Adjustments | 4-20mA |
| Low alarm trip point | 10% below low trip point |
| Contact Resistive: | SPDT 10 amps at 240VAC |
| Operating temperature | -13º to +122º F |
| Expected relay life Mechanical: | Mech: 10 million operations Elec: 100,000 at rated load |
| Humidity tolerance | 0-97% w/o condensa |
| Enclosure material | ABS plastic |
| Mounting | 11-pin socket (*order separately) |
| Series Features |
| MODEL 662 Pump Up Control |
| Series Description: The Model 662 Pump Up Control, part of the 600 series line of instrumentation controls, is designed to monitor and maintain liquid levels. A user-provided 4-20mA current loop represents the liquid level, and output connections are pro- vided for pump control. The HIGH ADJUSTsetpoint, and the LOW ADJUST setpoint, are field adjustable. If the input falls below the low setpoint, the PUMP UP relay energizes, and remains that way until the input rises above the high setpoint. The high setpoint must always be set above the low setpoint. Top-mounted LEDs on the Model 662 show system status. The PUMP UP LED turns ON when the input falls to 10% below the low setpoint, and resets when the input rises above this level. An INPUT LOOP ERROR L E D turns ON if the input is outside the 4-20mA range. A Time Mark Model 650 Loop Power Supply (or equivalent) is required to provide the 24VDC operating voltage. A Time Mark Model 672-15 Pressure Transducer (or equivalent) is required to provide the input signal. |
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