05SLA / 05SLB Series NCC National Controls Corp 05SLA / 05SLB Series Liquid Level Control Boards
411
Free
- 05SLA / 05SLB Series NCC National Controls Corp 05SLA / 05SLB Series Liquid Level Control BoardsThese controls utilize a single probe input for maintaining a level of liquid. A built in time delay prevents rapid cycling. The probe and sensing circuit are isolated from line voltage via a transformer. The probe is driven with and AC signal to prevent plating. The output is electro-mechanical rated at 10 A.In the Model 05SLA (Pump Down) the output relay is deactivated as long as no liquid is in contact with the probe. As the liquid makes contact with the probe, a time delay is initiated. At the end of the time delay, the output relay is activated until the liquid breaks contact with the probe.In the Model 05SLB (Pump Up) the output relay is deactivated as long as the liquid is in contact with the probe. As the liquid drops away from the probe, a time delay is initiated. At the end of the time delay, the output relay is activated until the liquid touches the probe again.If the tank is non-conductive, a second (common) probe must be installed at a level where it will always be submerged.
