OPLH / OPLHACS Series

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  • Eliminates under/overfill due to “human error”
  • Combination Level Indicating Gage and Critical Level Limit Switch
  • High and Low Level Limit Contacts Are Visible and Adjustable
  • Designed to Start and Stop Pumps to Maintain Specific Levels
  • Latching Control Relay Versions Available
  • Indication Only Models Avaiable

FW Murphy Production Controls offers support for all our products. If you are unable to find the product that you need, please call us at 918-957-1000.

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Product Overview: 

The OPLHC/OPLHACS Series Level gages are combination level-indicating gages with adjustable low- and high-limit switches. Limit switches can be wired directly to electric pilot circuits to operate alarms, shut down or start/stop pumps to maintain predetermined levels. 

Surface-mount or panel-mount enclosures are available for both model series. All models feature a 4-1/2 in. (114 mm) dial for easy viewing. Adjustable limit switches are accessible from the front of the gage.

Specialized models are available for specific applications involving engines or electric motors.

OPLHC/OPLHACS Series include two adjustable, pilot duty, pointer type contacts. Contacts have self-cleaning motion to enhance electrical continuity. Models are available with a rugged bourdon tube or a 316 stainless steel bellows sensing element for greater accuracy and sensitivity in lower ranges. 

OPLHBP/OPLHABPS Internal latching control relays are available to provide ON/OFF automation for electric motor applications.

OPLHC and OPLHACS series are available in indication only models (OPLHAGS). See the following pages to determine the model for your application.