testo 830-T4 Manual De Instrucciones página 12

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— 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 emissivity mode, the instru­
ment switches to the infrared measurement mode.
1 Press
2 Set emissivity: Press
— 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 instru­
ment changes to the next mode.
1 Press
— The device switches to settings mode.
2 Set lower alarm value ( ALARM): Press Press
the button down to go forward quickly.
3 Set upper alarm value ( ALARM): Press Press
Hold the button down to go forward quickly.
4 Set alarm function on / oFF: Press
5 Select parameter (°C / °F): Press Press
— 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
for 3 s.
for 3 s.
Instrument must be switched off!
1 Open battery compartment: Open up
cover.
2 Remove used battery and insert new one.
Observe +/­. The minus should be visible
once the battery is inserted.
3 Close battery compartment: Close cover.
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or .
or
or . Hold
or .
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or .
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