Specially designed for differential or single-level service, with an eight-pin socket and screw-type connections, this control unit is easy to install and service. In addition, this unit provides higher sensitivity, up to 5.5 MΩ/cm, with a 12 V DC probe voltage for applications with low-conductive media.
Specially designed for differential or single-level service, with an eight-pin socket and screw-type connections, this control unit is easy to install and service. In addition, this unit provides higher sensitivity, up to 5.5 MΩ/cm, with a 12 V DC probe voltage for applications with low-conductive media.
Features
Direct mode: single level service
When the liquid rises to the electrode on terminal 3, this control energizes, changing the state of the load contacts (the LED will light up). This control remains energized until the liquid level recedes below the electrode on terminal 3. This control then de-energizes (the LED will turn off), returning the load to its original state.
Sensitivity in a single level service is one-half that of the differential service (using a single probe). To obtain maximum sensitivity (listed sensitivity), two probes of equal length, plus ground reference, must be used (terminals 3, 4, 5).
Inverse mode: single level service
This control energizes with power, changing the state of the load contacts (the LED will light up). When the liquid rises to the electrode on terminal 3, this control de-energizes, returning the load contacts to the shelf state (the LED will turn off). This control remains de-energized until the liquid level recedes below the electrode connected to terminal 3. This control then energizes.
Direct mode: differential service
When the liquid rises to the electrode on terminal 3, this control energizes, changing the state of the load contacts (the LED will light up). This control remains energized until the liquid level recedes below the electrode on terminal 4. This control then de-energizes (the LED will turn off), returning the load contacts to their original state.
Inverse mode: differential service
This control energizes with power (the LED will light up), changing the state of the load contacts. When the liquid rises to the electrode on terminal 3, this control de-energizes, returning the load contacts to their shelf state (the LED will turn off). This control remains de-energized until the liquid level recedes below the electrode on terminal 4. This control then energizes.
Applications
| Sensitivity | 0 to 5.5 MΩ, factory set |
| Voltage | 24, 120, 240 V AC, (10/-15%) 208/240: 187 V/min, V AC 50/60 Hz Secondary voltage (probe): 12 V DC |
| Mode of Operation | Direct |
| Sensor Type | General purpose controls |
| Contact | Design: 1 N.O. and 1 N.C. (1 form C) Rating (120, 240 V AC): 10 A resistive ⅓ hp |
| Control Style | Plug-in module |
| Temperature | -40 to 150°F (-40 to 65°C) |
| Terminal Style | Screw connector |
| Protection | Non-intrinsically safe |
| Approvals | U.L. 508 file #E44426 |
| Dimensions | 2 x 2.375 x 3.5" (50.8 x 60.3 x 88.9 mm) |
| Weight | 1.1 lbs (0.5 kg) |
| Sensitivity | 0 to 5.5 MΩ, factory set |
| Voltage | 24, 120, 240 V AC, (10/-15%) 208/240: 187 V/min, V AC 50/60 Hz Secondary voltage (probe): 12 V DC |
| Mode of Operation | Direct |
| Sensor Type | General purpose controls |
| Contact | Design: 1 N.O. and 1 N.C. (1 form C) Rating (120, 240 V AC): 10 A resistive ⅓ hp |
| Control Style | Plug-in module |
| Temperature | -40 to 150°F (-40 to 65°C) |
| Terminal Style | Screw connector |
| Protection | Non-intrinsically safe |
| Approvals | U.L. 508 file #E44426 |
| Dimensions | 2 x 2.375 x 3.5" (50.8 x 60.3 x 88.9 mm) |
| Weight | 1.1 lbs (0.5 kg) |
