Simrad PI32, Руководство оператора, Страница: 246 / 268

Simrad PI32
234
857-164636 / Rev.A
(4) = A second start flash: This signals that the second
digit of the channel number is next.
(5) = None to nine short flashes: The number of short
flashes signifies the second digit of the configured
channel number.
3 Using a multimeter, check the DC current between the
negative charging lug (A) and the water detector (B).
- With the initial sea water switch and a a fully charged
battery, the current should not exceed 150
µ
A.
- With a redesigned sea water switch (sacrificial bolt)
and a a fully charged battery, the current should not
exceed 67
µ
A.
- If you measure 0
µ
A, check the fuse on your
multimeter.
Testing on land
The sensor can only be tested in water.
Testing in water
1 Use the vessel’s most accurate echo sounder as reference,
and measure the water depth below the keel.
2 Lower the Height sensor over the side of the vessel. Make
sure that the echo sounder transducer faces the bottom.
- Lower it to the same depth as of the vessel’s echo
sounder transducer.
3 Switch off the vessel’s echo sounders, sonars and other
hydroacoustical equipment to avoid interference.
4 Switch off the PI32’s interference filter, and observe the
numeric display.
- If the interference symbol is not displayed, leave the
interference filter switched off to increase the system’s
range and performance.
5 Use the PI32 Status display to monitor the sensor’s signal
strength.
- If the interference filter is activated, the spectrum
displayed should be relatively flat (approximately 25
dB with interference filter set at level 9) with a peak
detected in the configured channel.
6 Check that the depth read-out on the PI32 corresponds to
the actual depth measured by the vessel’s echo sounder.
7 Hoist and lower the sensor in the water, and observe that
the depth readout changes accordingly.
8 Turn on the vessel’s echo sounders as well as other
hydroacoustical equipment used during normal fishing
operations.