Voltage Detection With Antenna - Amprobe LT-10 User Manual

• When using the instrument, if LED indicator does not glow or
the instrument does not beep, voltage could still be present. The
instrument indicates active voltage in the presence of electrostatic
fields of sufficient strength generated from the source voltage. If the
field strength is low, the instrument may not provide indication of live
voltage. Lack of an indication occurs if the instrument is unable to sense
the presence of voltage which may be influenced by several factors
including, but not limited to:
- Shielded wire/cables
- Thickness and type of insulation
- Distance from the voltage source
- Fully-isolated users that prevent an effective ground
- Receptacles in recessed sockets or differences in socket design
- Condition of the instrument and batteries
• Do not use if the instrument appears damaged or if it doesn't operate
properly. Closely examine the tip of the probe for cracks or breakage
before use. If in doubt, have the instrument serviced.
• Do not use the instrument to test voltage higher than the rated voltage
as marked on the instrument.
• Use caution with voltages above 30 V ac as a shock hazard may exist.
• Comply with local and national safety requirements.
• Use proper protective equipment as required by local or national
authorities.
The non-contact voltage (NCV) test can be used to check whether the
ballast is functional by verifying the presence of ac voltages at the input
and output of the ballast, or the energized parts of the light fixture. The
light fixture must be turned on before verifying the presence of ac voltage
with the instrument.

Voltage Detection with Antenna


Do not touch the energized bare parts with the antenna. Test on
energized insulated parts or insulated wires only.
1. Turn the light fixture's power on.
2. Use the antenna to quickly check the presence of ac voltage to the light
fixture.
• If the LED flashes red and beeps (modulated), there is ac voltage
present.
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