Phase Symbol Cause
General Low Bat is flashing Power to instrument is too low. If the
battery voltage drops below 6.7 volt, the
instrument switches off automatically.
T in top line is Non-permitted ambient temperature
flashing Adapt to ambient temperature.
The message Send instrument for service.
Exxx appears in the
bottom line
-- -- -- -- Pressure sensor is overloaded.
Error messages
18
Remove empty/defect rechargeable batteries or empty
batteries from the battery compartment and replace with
new ones.
Remove rechargeable batteries/batteries if the instrument
is not used for a longer period of time. If the battery cells
leak in the instrument, return instrument to factory to be
cleaned and checked.
Only the rechargeable batteries/batteries specified in the
technical data should be used.
Observe correct polarisation of rechargeable batteries or
batteries.
Instrument should only be used if the battery
compartment cover is closed.
Switch off instrument and disconnect from all
measuring circuits before changing the rechargeable
battery or battery.
Date and time are saved when the instrument is switched
off.
Maintenance
Changing the rechargeable battery or battery
1
2
3
4
old
new
If we were unable to answer your question, please contact your distributor or Testo
Customer Service. For contact data, see back of this document or web page
www.testo.com/service-contact
w ww . . co m
information@itm.com1.800.561.8187
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