THT80
EN - 7
4.2 DESCRIPTION OF FUNCTION KEYS
The instrument has 2 function keys described further with multiple functions.
4.2.1 Switching on the instrument
1. Press the key
for 2s
to switch on the instrument. After the initial splash screen is
displayed (see Fig. 6
– left side), the instrument needs for a certain heating time
(approx. 30s) to provide accurate temperature measurements and quality images.
2. The instrument initially shows the visible
image for a few seconds and the message “
IR
calibration
…
” while it correctly calibrates the internal sensor (see Fig. 6 – middle).
3. After a few seconds, the IR image is shown on the display and the instrument is ready
for measurement (see Fig. 6
– right side).
Fig. 6: Sequence upon switching on the instrument
CAUTION
•
The sound that accompanies the message “
IR C
alibration…
” is a
necessary condition for the instrument's internal calibration. The auto
calibration time can also be set and/or manually disabled (see § 5.2.1.2)
•
Pressing the key allows switching on/off the instrument. The instrument
also has an Auto-Power-Off function with selectable time.
4.2.2 Switching off the instrument
1. Press the key
for
at least 4s
to switch off the instrument. The following screen
appears on the display.
Fig. 7: Switching off the instrument
2.
Touch the virtual button “OK” to switch off the instrument.
3.
Touch the virtual button “Cancel” to cancel the operation and go back to normal
display.
4. By pressing and holding the key for
at least 7s
, the instrument is directly switched
off.
