PLC Memory Battery

How to change the memory battery on the XL4 Series or XL7 Series Horner Controller?

Odorant Meter

How to confirm the odorant meter is working in a GPL Z10000 Gas Odorizer?

Indicator Light

What does the indicator light mean on the GPL Z10000 Gas Odorizer?

Solenoid/Isolation Valve

How to manually override the solenoid/isolation valve?

Motor Controller Failure

How to troubleshoot the motor controller failure on the GPL Z10000?

Pressure Alarm

How to troubleshoot a pressure alarm on the GPL Z10000 Gas Odorizer?