Operation Manual

Sensor test procedures
275
850-165186 / Rev.B
- Note that the weight of the sensor in water
(approximately 1.4 kg) may not provide sufficient
resistance to trigger the sensor function when the
detector wirer are pulled. Apply extra weight if
required.
4 Turn off the PI system’s interference filter, and observe
the numeric display.
- If the interference symbol is not displayed, leave t he
interference filter switched off to increase the system’s
range and performance.
Note: Should any problems arise during this procedure, check that the
communication channel and update rate has been configured
correctly.
5 Check that the information from the sensor is displayed on
the PI.
6 Engage the sensor, and check that this is registered by the
PI.
7 Check the PI Status Display, and record the signal
strength.
8 Switch on the vessel’s echo sounders and o ther
hydroacoustical equipment used during normal fishing
operations.
9 Switch the PI54 interference filter on and off, and observe
the numeric display. If the interference symbol is not
when the filter is off, leave the interference filter switched
off to increase the system’s range and performance.
10 Use a water-proof pen, write the sensor’s number,
configured channel number and any other pertinent
information on its label.
- A dedicated form has also been provided in the front of
the PI Operator Manual to record this information.
Note: Do not write on the sensor! Such information may be
misunderstood when future service or replacement is performed.