Laserfiche WebLink
LEVEL PROBE RELAY <br /> APPLICATION EXAMPLE <br /> The following is an example of how to connect three LEVEL PROBE RELAYS to a LEVEL PROBE, to provide a <br /> High Level Alarm and Lead & Lag Pump Call outputs for a typical duplex pump down application: <br /> LEVEL PROBE RELAY <br /> LEVEL LPR-1 <br /> PROBE <br /> 12 1 <br /> 11 2 HIGH Level Alarm <br /> F GND 10 3 <br /> 9 V 1 4 <br /> 120V8 5 <br /> 1 NEU 7 6 <br /> TB <br /> 2 E1 <br /> 2 LPR-1 <br /> 3 High 3 High Level <br /> 4 12 1 <br /> 5 Lag On Level 11 2 LAG Pump Call <br /> 4 6 Lead On Level GND 10 3 <br /> 5 Lag 8 120V 8 5 <br /> 6 Lead 9 NEU 7 6 <br /> 10 Off Level <br /> 7 <br /> LPR-1 <br /> 8 12 1 <br /> 11 2 }LEAD Pump Call <br /> 9 L_ GND 10 3 <br /> 9 4 <br /> 10 off — <br /> 120U 8 5 <br /> NEU 7 6 <br /> Notes: <br /> 1. The liquid in the wet well must be grounded to the control panel ground. Where a submersible pump is <br /> present, the grounded housing of the pump will provide the required ground connection. If there is no <br /> ground connection, a single point Level Probe may be placed near the bottom of the wet well and <br /> connected to the control panel ground. <br /> 2. The High Alarm, Lead On, Lag On and Off Levels are set by selecting the appropriate terminals on the <br /> terminal strip (TB), as shown above. <br /> 3. A Lag Pump Delay may be accomplished by setting 5, 10, or 15 seconds on DIP Switches 4 & 5 on the <br /> Lag Pump Call Level Probe Relay. <br /> 2464 Vulcan Road, Apopka, Florida 32703 • (407) 299-3825 • www.mpelectronics.com <br />