Copyright 2008 Baker Hughes Company.
42 | PACE5000/6000 Instruction Manual–English
Chapter 5. Testing and Fault Finding
• The vent valve opens and remains open until OK is pressed.
• Always use the vent function before disconnecting pressure equipment from the output port.
• The instrument automatically returns to measure mode.
• The color of the displayed pressure value changes to black.
After a successful serviceability test the instrument is ready for use.
5.3 Fault Finding
Check the faults and responses, refer to Table 5-1. If the fault persists, refer to Section 5.4.
5.4 Approved Service Agents
For the list of service centers:
Druck.com
Table
5-1: Fault Diagnosis
Fault Response
Power supply connected, display not lit. Check rear panel switch set to on.
Check fuse and, if necessary, replace
Check electrical power supply fuse or circuit breaker.
24 V dc output intermittent. Over-load internal self-resetting fuse operating.
Reduce load current to specified value.
Instruments functions, but does not reach all
set-points.
Check pneumatic supplies for correct pressures.
Check system for leaks.
In measure mode with output port sealed, the
pressure continues to increase or decrease.
Increasing pressure, leaking Apply control valve.
Decreasing pressure, leaking Release control valve.
Confirm by isolating pressure supplies.
Contact Druck approved service agent.
Display pressure reading in red Over-range, use vent de-pressurize or vent manually.
Instrument enters measure mode without
user request or command.
Idle time-out enabled but timeout period setting too short.
Instrument will not zero. Blocked vent port.
Check for blockage.
Contact approved service agent for repair.
Instrument controlling to set-point, no
pneumatic output
Blocked isolation valve.
Contact approved service agent for repair.
Erratic or inaccurate zero Leaking isolation valve.
Reference port restrictor not fitted.
Contact approved service agent for repair.
Increased gas consumption.
Unstable control at set-point or does not
achieve set-point.
System leak.
Carry out leak test.
Contact approved service agent for repair.
Reference port restrictor not fitted.
If the controlled pressure stays within the
tolerance band and the pressure at the output
is within limits. If the controller status
indicator is outside the tolerance band.
Leak in the system or the supply pressure differs from the
pressure for which the control valves have been
characterized.