LCP Series Liquid Level Control Relays detect and control levels of conductive liquids (tap water, seawater, sewage, chemical solutions, coffee, ice cream, etc.) in single probe pump up or pump down applications. The conductive properties of the liquid complete a circuit between a probe and common when the liquid comes in contact with both. These relays compare the value of the measured resistance between probes with the setpoint of the adjustable potentiometer provided on the product. The output of the relay is used to control pumps, solenoids or valves to lower, raise or maintain the level of the liquid in the tank. Probes are pulsed with a DC voltage to prevent potential electroplating issues. A built-in time delay prevents rapid cycling.

Two versions of Single Probe products are available:
Pump Up (Fill): The relay is OFF as long as the liquid is in contact with the probe. The relay energizes after a fi xed time delay when the liquid level drops below the probe. The relay de-energizes when the liquid level touches the probe.

Pump Down (Drain): The relay is OFF as long as no liquid is in contact with the probe. The relay energizes after a fi xed time delay when the liquid level touches the probe. The relay de-energizes when the liquid level falls below the probe.

 

Features

• Controls Level of Conductive Liquids in Pump Up (Fill) or Pump Down (Drain) Applications
• Single Probe
• Probe is Pulsed with a DC Voltage to Prevent Electroplating
• Factory-Fixed Time Delay of 1-60 Seconds Prevents Rapid Cycling
• Two Adjustable Sensitivity Ranges
• LED Status Indication
• Uses industry-standard 8 pin octal socket
• Pilot Duty Rating

 

Downloads

Document	File Type	File Size	Download
LCP Series Single Probe Datasheet	PDF	102 KB