Measurement Precautions - Dawson DCT220 User Manual

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1.3.5 Receiver's display using different
modes
(1) Automatic mode
(2)Non-Contact Voltage mode
(2) Manual mode
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MEASURING PREPARATION
2.

2.1 Measurement Precautions

1. Because the transmitter, when connected
to a live socket/mains, may generate a
small current, the negative side of the
transmitter should only be connected to
the neutral line. If connected to the
grounding line, test the line first to ensure
it complies with DIN VDE 0100 safety
standards. The grounding line may be
compromised if an error during testing
occurs and the line does not meet the
above safety standards.
2. When the transmitter is connected with
live mains,if the Grounding hole of the
transmitter isconnected with protective
ground phase,the current leakage (if any)
in the power supply line may join the ciruit
current of the transmitter,leading to
tripping of the leakage circuit,i,e.tripping
of FI/RCD .
1. Sometimes there might be a small spark
when connecting the leads of the
transmitter to a voltage source. This is
normal.
2. When the transmitter is in either code
select, level select or transmission modes,
the other two mode's are disabled.
3. If the receiver is in manual mode, NCV mode
is disabled; in NCV mode, manual mode is
disabled.
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