Service And Maintenance - TESTO 830-T4 Instruction Manual

1 Position contact thermometer in/on the measurement object
and activate the measurement: Press .
- The instrument changes to the contact measurement mode (
lights up). The current reading is shown.
2 End the measurement: Press
- HOLD lights up. The last measured value and min./max. value
are saved until the next measurement.
Switch between min., max. and recorded value: Press .
Restart measurement: Press .
Back to infrared measurement view:
Press measurement button.
Setting the emissivity
- Instrument is in the infrared measurement mode.
If no button is pressed for 3 s in the
the instrument switches to the infrared
mode.
1 Press for 3 s.
2 Set emissivity: Press or .
- The instrument switches to the infrared measurement mode.
8. Settings
- Instrument is switched off
If no button is activated in the setting mode for 3 s, the
instrument changes to the next mode.
1 Press for 3 s.
- The device switches to settings mode.
2 Set lower alarm value (ALARM): Press or . Hold the button
down to go forward quickly.
3 Set upper alarm value (ALARM): Press or . Hold the button
down to go forward quickly.
4 Set alarm function on / oFF: Press or .
5 Select parameter (°C / °F) : Press or .
- The device returns to IR measurement view.
The alarm function is only available for IR measurement. If the set
alarm values are exceeded/not reached, a visual and acoustic
alarm is output.

9. Service and Maintenance

9.1 Changing the battery
Instrument must be switched off!
1 Open battery compartment:
Open up cover.
.
emissivity mode,
measurement
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