Instruction Manual

26
3−5 General Check
(2) Correlation calculation check
① Turn on the main unit.
② Turn on two pre-amplifiers.
③ Make sure the data arrival rate is not 0 and then
press the correlation switch .
④ Lightly rub the magnet at the bottom of each
pre-amplifier.
⑤ Verify that the calculation result and correlation
waveform are displayed on the leak location
screen as shown in the screen shot below.
The delay time is 0.00 ms, and the correlation
waveform shows a peak at 0.00 ms.
Note
● Do not rub the pre-amplifier too
strongly. Otherwise, the delay time may
not be 0.00 ms.
● If the unit is on its pedestal, or the
magnet is dirty, the delay time may not
be 0.00 ms.
(2) Correlation calculation check