11. Care and maintenance
Blow loose particles of dirt off the IR lens
maining dirt with a fine lens brush. Wipe the surface of the instru-
ment with a slightly damp cloth. Only use water to dampen
the cloth. For cleaning do not use any chemicals or cleaning
agents.
12. Determining and correcting faults
. Brush off any re-
Code
Fault
Course of action
Code
Fault
Course of action
Code
Fault
Course of action
Code
Fault
Course of action
Operating manual – English
"– – –" or "OL" (on the display)
Target temperature above or below
the measurable range
Select target within the range
Battery symbol appears
Battery almost empty
Check battery or replace
No display
Battery discharged
Check battery or replace
Laser does not work
Low or discharged battery
Replace battery
B 08