Testing And Fault Finding; Introduction; Standard Serviceability Test - GE PACE5000 User Manual

PACE Pressure Controller User Manual
5

Testing and Fault Finding

5.1

Introduction

• The PACE instrument contains a built-in, self-test and diagnosis system that continuously
monitors the performance of the unit. At power-up, the system performs a self-test.
• This section details the standard serviceability test. A fault finding table lists possible faults,
the probable cause and the procedures to rectify the fault.
5.2

Standard Serviceability Test

The following procedure shows if the unit is serviceable and checks functions and facilities of
the PACE instrument.
Procedure
1. Connect the instrument as detailed in Section 2, Installation. Connect a UUT or fit blanks to
the output port.
2. After a successful power-up, select measure set-up and proceed as follows.
(a) Select the required units of pressure measurement from the measure set-up menu.
(b) Press the status area to enter control set-up and select the required slew rate and vent
rate.
(c) Press set-point and, using the numeric keys, set a value within the pressure range of
the instrument.
(d) Check that the screen display shows: the selected units of pressure measurement, the
selected type of slew rate and the set-point. Press the
(e) The screen display changes as follows:
• The measured pressure digits change from black to blue and shows the
pressure value changing towards the set-point.
• If enabled, the effort meter indicates the work effort of the controller.
(f) When the controller achieves the selected pressure set-point, the screen display
changes as follows:
• The colour of the displayed pressure value changes from blue to green
indicating that the controller is within the in-limits tolerance.
• If enabled, the effort meter shows the controller effort to keep the pressure at
the set-point.
(g) Select vent and the pressure reduces to atmospheric pressure at a controlled rate
(vent slew).
(h) The test is completed when the controller is at atmospheric pressure.
Notes:
1. The vent opens and remains open until OK is pressed.
2. Always use the vent function before disconnecting pressure equipment from the outlet
port.
(j) The instrument automatically returns to measure mode. The colour of the displayed
pressure value changes to black.
After a successful serviceability test the instrument is ready for use.
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