Section 2 Detective+
VIII. Troubleshooting Guide
SYMPTOM DIAGNOSIS REMEDY/CHECK
Does not switch on Battery flat Recharge battery
Does not switch off OFF disabled Alter configuration*
No audible tick Tick disabled Alter configuration*
Alarm signals, no gas Alarm latched Reset with UNMARKED
button
Flashing red alarm,
Sounder silent
INST toxic alarm
accepted
Reset if possible, check
configuration*
Gas reading, no gas Zero drifted Zero instrument*
Unstable/inaccurate
reading
Sensor failed Recalibrate or replace
sensor*
Loading Defaults mes-
sage on display screen
Back up battery is dis-
charged
Recharge unit then
re-configure and recali-
brate.
PC Interface Not
Working
Blown fuse, incorrect
software/PC Portables
version
Check Fuses F8 and
F9 (see maintenance
Section for details )
update to latest soft-
ware version
Unit Not Charging Blown fuse, dead bat-
tery, incorrect input
voltage
Check Fuses F3 and
F4 (see maintenance
Section for details)
replace battery, check
input voltage
*See SETTING UP or CONFIGURING THE INSTRUMENT VIA SETPORTABLE
** see MAINTENANCE AND CALIBRATION
Troubleshooting Guide Detective+
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