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14 t – ENMET PGD2 User Manual

Page 31

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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.