Non-Contact Voltage Detection - Dawson DCT220 User Manual

1. When using the receiver,
the stronger the signal
received, the closer the
transmitter is to the cable.
2. Adjust the transmitter
power to get an adequate
signal depending on the
detection environment.
3. You can put the receiver
into manual mode and
adjust its sensitivity to
pick up the signal from the
transmitter adequately.
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3.4 Non-Contact Voltage detection

Preconditions:
Must be a charged circuit.
Follow the example as shown in fig. 3-4.
Set the receiver to NCV mode to begin detection
1. The transmitter only indicates the existence of an AC
signal in the circuit being tested. The actual voltage
present can only be determined using a connected
transmitter.
2. When detecting over multiple lines in close proximity,
connect each line to the power signal separately.
1. You do not need the transmitter to perform non-contact
voltage detection. The transmitter can perform voltage
level tests during NCV detection, but does not affect NCV
detection.
2. The signal strength displayed and the frequency of the tone
from the receiver are related to the voltage present and the
distance from the circuit. The higher the voltage and the
shorter the distance to the circuit, the greater the displayed
signal and the higher the frequency of the tone produced
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