testo 830-T4 Manual De Instrucciones página 11

6. Initial Operation
► Insert battery: See 9.1 Changing the battery
7. Operation
7.1 Connecting probe
► Connect temperature probe to probe socket. Observe +/­!
7.2 Switching on/off
► Switch on instrument: Press measurement button.
— All­display­segments­light­up­briefly.­The­instrument­changes­
to the infrared mode (
for 10 seconds every time a button is activated.
► Switch off instrument: Keep
— The device switches off automatically after 1 min (IR measure­
ment view) or 10 mins (contact measurement view) without
the button being pressed.
7.3 Measuring
!
Observe information on infrared measurement (chapter 11) /
contact measurement (chapter 12).
!
With IR measurement, the min./max. values are reset by
pressing the measurement button, and with contact measu­
rement, this is done when the device is switched off or when
you switch to the IR measurement view.
— The instrument is switched on.
Infrared measurement
1 Start measurement: Hold down measurement button.
2 Locate object to be measured using laser point: Laser
marks the upper and lower end of the measurement spot (at
distance to measurment object from 1,0 m; see chapter 11.3
measurement spot, distance).
— The current reading is shown (2 measurements per second))
3 End measurement: Release button.
— 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 measurement button.
Contact measurement
— Temperature probe was connected before the measuring inst­
rument was switched on.
1 Position contact thermometer in/on the measurement object
and activate the measurement: Press
lights up). The display light remains
pressed until display darkens.
.
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