ENMET PGD2 - Manual (Page 31)

ENMET Corporation PGD2
28
14 T ROUBLESHOOTING
The following is a guide to troubleshooting during normal operation. For information about troubleshooting during calibration,
configuration and/or programming refer to Instruction Manual 2.
FAULT POSSIBLE CAUSE REMEDY
PGD Instrument
will not switch on.
Rechargeable battery discharged.
Dry cells discharged.
Faulty switch panel.
Faulty electronics.
Recharge battery.
Replace Cells.
Return to ENMET.
Return to ENMET.
Toxic sensors
reading “HIGH”.
Storage of PGD without power
i.e. with discharged battery pack.
Sensors should stabilize within
one hour of restoring power.
Reduced
operating life from
battery pack.
Incorrect charging.
e.g. PGD must be switched off when
placed in smart charger.
Refer to section 0.
Constant very low operating
temperature.
Avoid storage and/or charging at
low temperatures.
Repetitive short, partial discharge
cycles of battery.
Periodically (e.g. monthly) fully
discharge battery i.e. leave on
until LCD blanks.
Rechargeable cells losing capacity
due to number of charge/discharge
cycles.
Return to ENMET for cell
replacement (later type of battery
pack only).
Flammable
sensors reading
changes to
“FAIL”.
Sensor output has drifted outside
acceptable limits.
Calibrate instrument, if sensor
still fails, replace sensor or return
to ENMET.
Oxygen reading
seems low e.g.
less than 20%.
High ambient humidity. Refer to section 12.3.4.
Sensor life expiring. Calibrate instrument, if sensor
output still low, replace sensor.
Ambient oxygen level low. PGD operating correctly,
exercise extreme caution!
Incorrect
TIME/DATE is
displayed, and/or
“CALIBRATION
DUE” displayed
prematurely.
Internal lithium battery for clock is
fully discharged allowing corruption
of clock data during battery pack
changes or when main battery is
discharged.
Return to Status for backup
battery replacement.