DH Instruments PPCK PLUS, Operation And Maintenance Manual

Page: 138 / 150

PPCK+™ Operation and Maintenance Manual
©2001 DH Instruments, Inc .
Page 130
Table 18. Troubleshooting Guide (Continued)
SYMPTOM POSSIBLE CAUSE SOLUTION
Displays <FATAL ERROR> or
<FATAL FAULT> .
Encountered unresolved internal
software conflict. Cycle power to clear. Please
record conditions leading up to
event including the numbers
displayed when
[ENTER] is
pressed and report to your DHI
Authorized Service Provider
(Table 22).
There is a <C> to the right of the
<D> or <S> control mode
character on the bottom line of
the display and it won't go away.
The CUSTOM CONTROL
function has been used. Reset control parameters to
default by selecting a control
mode using
[CONTROL]
function (3.2.3).
Pressure display is flashing and
beeper is sounding. Current upper limit of active
range has been exceeded. Correct overpressure condition.
Change
[UL] and/or active range
if needed (3.2.4, 3.2.1).
Pressure display is flashing, no
buzzer is sounding and manual
pressure control keys are
inactive. PPCK+ has been overpressured
(pressure higher than UL). Correct the overpressure
condition and cycle power ON
and OFF (3.2.4, 3.2.4.1).
A Ready indication is never
achieved.
Control parameter settings are
too tight and/or existing
conditions will not allow
Ready
to be achieved.
Adjust control parameters or
correct other conditions (3.1.2.5,
3.2.6).
Will not set pressure. Pressure supply(ies) incorrectly
connected or not adequate. Correct pressure supply(ies)
(2.3.4).
Will not set pressure. Valve drive air supply is not
connected or too low so high
pressure valves are not opening. Connect valve drive air correctly
and/or increase drive air
pressure to 700 kPa (100 psi)
(2.3.6).
Will not set pressure. There is a very large leak in the
test system or TEST port is not
connected. Correct leak.
Disagreement between
transducer ranges appears
excessive. Difference is actually in tolerance
and represents
natural
disagreement.
Compare differences observed to
tolerances on reference pressure
transducer measurements
(1.2.2.1).