CHART Trifecta Pro Series, Product Manual

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45 Service Product Manual - Trifecta
®
Pro Series
Pressure and Liquid Level Transmitters
1 Leak check all fittings associated with the transmitter to verify the circuit has zero leaks. The sensor error check function
is designed to find problems such as a wire coming disconnected, or a short in the transmitter. See the Service section of
this manual for Alerts and Alarms
2 Confirm that all wiring connection terminals are tight.
3 If all connections are made and the Alarm condition does not go away, check the transmitter output.
4 Recalibrate or replace the transmitter as necessary
5 Also verify display readouts versus the analog gauges for both pressure and differential pressure.
Ball Valve Maintenance and Repair
Chart recommends that these ball valves have their stem seals checked and tightened at least every six months Ball seals and
actuator seals should also be checked and replaced at least once per year
Extended stem and short stem Worcester cryogenically-rated ball valves are used for isolation valves. These valves, for the
most part, stay in the open position. Chart recommends these ball valves have their stem seals checked and tightened at least
every six months Ball seals should also be checked at least once per year and replaced as required