HT Instruments FLASHMETER Bedienungsanleitung Seite 26

4.3. DESCRIPTION OF FUNCTION KEYS
4.3.1. ON/OFF key ( )
Pressing the key allows turning on the instrument. Press and hold the
1s to turn off the instrument.
4.3.2. HOLD/
Pressing the HOLD/
–
Fig. 1 part 1) and the symbol
key for approx. 1s to activate/deactivate the Auto HOLD function. The symbol
appears on the display and the buzzer beeps twice in a short time. With activated Auto
HOLD function, the instrument automatically freezes the measured value on the display
when the input signal is steady (3 samplings with a maximum difference of 10% between
the highest and the lowest value). The instrument automatically quits the function after
approx. 30s seconds.
4.3.3. V/Ω/ key
• The instrument switches on in Ω mode.
• The instrument automatically switches to VAC or VDC if the following
voltages are detected:
• The instrument automatically switches to Ω mode with the following
measured voltages:
• Press the V/Ω/
continuity test.
4.3.4. Detection of AC voltage without contact
The instrument allows detecting the presence of AC voltage without contact by using the
NCV sensor found on the upper part (see Fig. 1
1. Switch on the instrument by pressing the ON/OFF key.
2. Bring the NCV sensor closer to the potential AC source.
3. If the red detector turns on (see Fig. 1
4.3.5. Auto-Power-Off function
In order to preserve internal batteries, the instrument switches off automatically
approximately 15 minutes after it was last used. The symbol
off function, which cannot be deactivated.
key allows activating/deactivating the built-in white-light torch (see
" "
appears on the display. Press and hold the HOLD/
VAC > ca. 1.5V ; VDC > ca. 1.0V
VAC and VDC < ca. 0.6V
key to manually select resistance measurement and
–
part 3), AC voltage is present.
EN - 7
CAUTION
–
part 2).
"
FLASHMETER
key for approx.
"
A HOLD
"
identifies the Auto power
"