TESTO 876, Instruction Manual

Page: 38 / 40

8 Tips and assistance
38
8 Tips and assistance
8.1. Questions and answers
Question Possible causes/solution
Message Backup battery
empty or not present is
shown.
1. Confirm the message with [OK] .
2. Change buffer battery, see
Changing the buffer battery, page
37.
Error No memory card
inserted! is shown.
Memory card defective or not inserted.
1.
Confirm the message with [OK] .
2. Check or insert memory card.
Error Memory card full! is
shown.
Insufficient memory present.
1.
Confirm the message with [OK] .
2. Insert new memory card.
Error No lens/wrong lens!
is shown.
1. Switch off thermal imager.
2. Check lens
> Change lens if necessary.
Message Charging not
possible! is shown.
Ambient temperature is outside the
permissible range for charging the
battery.
1.
Confirm the message with [OK] .
2. Keep to the permissible ambient
temperature.
Error Permissible
instrument temperature
exceeded!
is shown.
1. Switch off thermal imager.
2. Let instrument cool off and keep to
the permissible ambient
temperature.
--- or +++ is shown instead
of the reading.
Reading is outside of the measuring
range.
> Change measuring range.
xxx is shown instead of the
reading.
Reading cannot be calculated.
> Check parameter settings for
plausibility.