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TESTO 870 - Tips and Assistance; Troubleshooting Questions and Answers; Automatic Zeroing Frequency Explanation

TESTO 870
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7 Tips and assistance
30
7 Tips and assistance
7.1 Questions and answers
Question Possible cause / solution
Error! Memory full!
is
displayed.
Insufficient memory available: Transfer images
to the PC or delete.
Error! Permissible
instrument temperature
exceeded!
is displayed.
Switch off the camera, allow the instrument to
cool down and observe the permissible
ambient temperature.
~
is displayed before a value.
Value is outside the measuring range:
extended display range with no guarantee of
accuracy.
---
or
+++
is displayed
instead of a value.
Value is outside the measuring range and the
extended display range.
xxx
is displayed instead of a
value.
Value cannot be calculated: check parameter
settings for plausibility.
Automatic zeroing (audible
"click" and brief image freeze)
is carried out very frequently.
Camera is still in its warm-up period (takes
approx. 90 seconds): Wait until the warm-up
period has passed.

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