Questions And Answers - TESTO 922 Instruction Manual

8. Questions and
answers
This chapter gives answers to frequently asked questions.
Question
is lit (bottom left
in display).
is lit (above
symbol).
Instrument switches
itself off.
-----
Display:
uuuu
Display:
oooo
Display: ·
no Signal
Display:
Date/time are
no longer correct
If we are unable to answer your question, please contact
your dealer or Testo Customer Service.
Possible causes
· Instrument battery is
almost spent.
· Radio probe battery
is almost spent.
Auto Off
· function
is switched on.
· Residual capacity
of battery is too low.
· Sensor is not plugged in.
· Sensor break.
· Permitted measuring range · Keep to permitted
was undershot.
Permitted measuring range · Keep to permitted
was exceeded.
· Registered probe
was not found.
· Voltage supply was
interrupted for a longer time

8. Questions and answers

Possible solution
· Replace instrument
battery.
· Replace radio probe
battery.
Switch function off.
· Replace battery
· Switch instrument off,
connect probe and
switch instrument
back on again.
· Please contact your
dealer or Testo
Customer Service.
measuring range.
measuring range.
· Switch on probe.
· Bring probe into
reception range.
· Register radio probe
again, see chapter
P
ERFORMING SETTINGS
objective
T
O REGISTER THE
.
RADIO PROBE
· Reset date and time.
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