EnGLISH
prior to use, always inspect the tester for visible signs of damage. If there is
any sign of damage, or if the tester does not operate correctly, discontinue use.
Always test on a known live circuit to verify tester functionality. The tester should be
used as an indication only.
Tester should be kept clean and dry. If it is not, wipe with a clean, dry lint-free cloth.
MODES Of OpERatIOn
The HVNCVT1 can operate in two ranges. In low-range mode, the red LED
low-range button
high-range button
On/Off ButtOn
Press the on/off button
two blue LEDs
10
fEatuRE DEtaILS for locations of blue LEDs.
"tESt" ButtOn
Press and hold the TEST button
steady blue LED light
ONLY confirms battery sufficiency, system integrity, and operation/active mode.
Always test on known live circuit to verify tester functionality prior to use. If the two
blue LEDs do not glow and the beep sound is not present, replace battery.
LOW-RanGE ButtOn
When the unit is turned on, press the low-range button
range setting. Look for a steady red LED
the two blue LEDs
The Low range is 50V AC to 1.5kV AC.
Place the probe tip of the tester
for the blue LEDs
voltage is present. As the probe tip gets closer to the voltage source, the blue LEDs
and beep sound will be constant. See Fig. 1 on page 5 for ideal detection angle. Always
OpERatInG InStRuCtIOnS
4
will illuminate. In high-range mode, the red LED
will illuminate. See fEatuRE DEtaILS for locations of red LEDs.
5
3
to turn the unit on or off. When the unit is turned on, the
will flash and the unit will emit a high-pitched beep sound. See
2
to perform a self-test on the unit. Look for a
10
and listen for a steady beep sound. This self-test function
10
to blink and listen for a beep sound.
1
near a low voltage source, but not touching it. Look
10
to blink quickly and listen for a quickened beep sound when
4
to switch the unit to the low-
6
below the low-range button. Also look for
6
6
below the
7
below the