ATSI Handheld Inductive Loop Tester HILT 9000 Panduan Pengguna - Halaman 9
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8
If there is bad connection, the tester
displays a message as shown in Figure
7. Make sure that the test leads are
properly connected. If the leads are
connected to the loop and the message
is still present, it means that Q of the
loop is too low to generate the oscilla-
tion or the inductance is out of range.
This can be verified by performing the
LOOP test.
In this mode, the the tester will shut off automatically after 45
seconds if no buttons are pressed.
Detector
• Verify the Loop is connected to detection system before
running this test.
• Disconnect the detector from the loop before running a
LOOP, Q, or L test.
The purpose of this test is to measure
the operating parameters of the
working loop while it is connected to
the detector.
Connect the test leads to the loop and
press the DETECTOR push-button.
During this test the measurements are
constantly updated displaying the type
of the operating mode, peak-to-peak
voltage, and the operating frequency as
show in Figure 8. If the signal is not
present or signal is weak, the tester
displays "No Signal" message as show
in Figure 9.
In this mode, the the tester will shut
off automatically after 45 seconds if no
buttons are pressed.
ATTENTION
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dL/L:
No loop found
Figure 7
Scan. mode:
7.4V @F=34.1KHz
Figure 8
No signal
-.-V @F=--.-KHz
Figure 9