ENMET PGD2Manual.pdf - Manual (Page 25)

ENMET Corporation PGD3-IR
22
11 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.
Faulty switch panel.
Faulty electronics.
Recharge battery.
Return to ENMET.
Return to ENMET.
Toxic sensors
reading “HIGH”. Storage of PGD without
power
i.e. with discharged battery
pack. Sensors should
stabilise 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 9.
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 10.3.4.
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 ENMET for
backup battery
replacement.