NOYAFA NF-826, User Manual

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3.1.6 Error detection for an electrical floor heating
Preconditions:
The current circuit must not be live.
※ All lines not being used must be connected to the auxiliary ground as shown in
Fig. 3-1-6a.
※ Connect both transmitters (if two transmitters are used) as shown in Fig. 3-1-6b.
※ Proceed as described in the application example.
※
1. If a shield mat is located above the
heating wires, no ground connection
may exist. If required, separate the
shield from the ground connection.
2. Full grounding should be ensured,
and there should be considerable
distance between the grounding
terminal of the transmitter and the
target line. If this distance is too
short, the signal and line cannot be
precisely located.
1. During tracing along the line,
the position at which the signal
received by the receiver has an
abrupt decline is the position of
the interruption.
2. Adjust the transmitting power
level of the transmitter to adapt
it to different detection radiuses.
3. The target position can be
precisely located by your setting
of the manual mode of the
receiver and selecting of the
proper sensitivity.
4. A second transmitter is not
indispensable for this application.
For single transmitter application,
see Fig. 3-1-6a.
3.1.7 Track an underground circuit
Preconditions:
The circuit must not be charged;
※ Connect the transmitter in a way shown in Fig.3-1-7;
※ The grounding end of the transmitter must be properly grounded;
※ Select the automatic mode of the receiver;
※ Use the displayed signal strength to search or track the circuit.
※
1. The distance between the ground wire and the circuit to be searched must be as
long as possible. If this distance is too short,the signals and the circuit cannot be
located precisely.
2. The depth of detection is greatly influenced by the conditions of the ground.
Select suitable receiving sensitivities to precisely locate the circuit.
3. When slowly moving the receiver along the circuit to be searched, you will find
the display changing a lot.The strongest signals represent the precise location of
the circuit.
4. The longer the distance between the feeding signals(transmitter)and the receiver,
the lower the strength of signals, and the shallower the detection.
Fig 3-1-7
Fig 3-1-6a
Fig 3-1-6b
2m
Your excellent helper in measuring instruments
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Your excellent helper in measuring instruments
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