Page 36 of 43
Operating Manual
www.qedenv.com
SEM5000.002
© QED Environmental Systems Inc.
SEM5000 Surface Emissions Monitor
TROUBLE SHOOTING
Problem
Possible Cause
Solution
Acoustic alarm and
flashing of the LED lights
GAS alarm
Concentration measured above the alarm threshold.
The display shows the
message ERROR PUMP,
LED flashing and the icon
is crossed
Pump stopped
The pump has stopped due to ingress of water or a
high quantity of dust. Check/change water and dust
filters.
Flashing of the Battery
icon
Low Battery
Battery charge is low. When icon flashes, the battery
will still provide about 30 minutes of use (at +20°C).
Swap battery with fully charged spare and continue
with your scan.
Display shows: LOW
BATTERY
Dead Battery
The battery charge has been fully depleted. The
SEM5000 will shut itself down.
Swap battery with fully charged spare and continue
with your scan.
Display shows: NO COMM
FROM LASER
Communication has
failed
Turn off and restart SEM5000. If the error persists,
contact the service.
Display shows: LASER
SENSOR ERROR 130
Communication has
failed
Turn off and restart SEM5000. If the error persists,
contact the service.
Display shows: LASER
SENSOR ERROR 135
Communication has
failed
Turn off and restart SEM5000. If the error persists,
contact the service.
Display shows: LASER
SENSOR ERROR 142
Communication has
failed
Turn off and restart SEM5000. If the error persists,
contact the service.
Display shows: LASER
SENSOR ERROR 144
Communication has
failed
Turn off and restart SEM5000. If the error persists,
contact the service.
Display shows: LASER
SENSOR ERROR 150
Communication has
failed
Turn off and restart SEM5000. If the error persists,
contact the service.
Note: For further information please contact Technical Support at QED at (800) 968-2026 or
email [email protected].
