TESTO 416 - Tips and Assistance; Questions and Answers

11 Tips and assistance
34
11 Tips and assistance
11.1 Questions and answers
Question Possible cause Possible solution
is displayed
(top right on the
display)
Instrument battery is
almost spent
Replace instrument battery
Instrument
switches itself off
• Auto Off function is
switched on
•
Remaining battery
capacity is insufficient
• Switch off Auto Off
function
•
Change the battery.
Display responds
sluggishly
Ambient temperature is
very low
Increase ambient
temperature
Display: -----
Sensor error
Please contact your dealer
or Testo Customer Service.
Display: OOOOO
Permissible measuring
range has been exceeded
Keep within the permissible
measuring range
Display: UUUUU
Permissible measuring
range has been undershot
Keep within the permissible
measuring range
Display: BT Fail
Bluetooth connection
could not be established
• Check Bluetooth
®
connections.
•
Restart measuring
instrument, restart testo
Smart App.
Display: Print Fail
Printout could not be
performed successfully
• Check Bluetooth
®
connections, switch off
and then on again if
necessary.
•
Switch printer off and then
on again.
Display: Probe Fail
Probe damage
Please contact your dealer
or Testo Customer Service.
Display: OTA Fail
The update process "over
the air" of the measuring
instrument could not be
completed successfully.
Restart the measuring
instrument and testo Smart
App and check the
Bluetooth
®
connection.
Display: APP Lost
Connection to the testo
Smart App was
interrupted. Keys are
locked for 3 s.
Restart the measuring
instrument and testo Smart
App and check the
Bluetooth
®
connection.