4-3
PC100 Series
Installation and Operation Manual
X-PR-PC100-Series-PC-eng
Part Number: 541B207AAG
May, 2017
Section 4 Maintenance & Troubleshooting
4-3 Troubleshooting
This section includes a Troubleshooting Checklist and a PC100 Series
Troubleshooting Guide that identifies symptoms, possible causes, and
corrective actions.
The PC100 is generally used as a component in gas delivering systems
which can be quite complex. This can make the tasks of troubleshooting
and isolating malfunctions in the system a difficult one. An incorrectly
diagnosed problem can cause hours of unnecessary down time. When
possible, follow the troubleshooting checks before removing a suspected
defective pressure controller.
4-4 Troubleshooting Checklist
1. Verify all electrical and communication connections are correct.
2. Insure OEM tool setpoint matches the setpoint at the PC100 Series.
Observe for consistency.
3. Verify isolations valves are open and the gas supply is turned on. Then
verify operating pressures are within operating ranges.
4. Check PC100 Series pressure control by moving the setpoint back
and forth.
Observe for pressure changes.
