Operation Manual

Sensors
135
850-165186 / Rev.B
Daily operation
Once installed and put to use, the Height sensor will
automatically be switched on once the waterswitch is activated.
After an initial start up, the sensor starts the echo sounder, and
the depth results are transmitted to the vessel. When the sensors
are not in use, check that the sensor lamp (D) do not flash from
time to time, as t his indicates that the sensor is on and is
discharging its batteries. In this case, wash the sensor in fresh
water to remove salt and dirt.
If you operate with Fast update rate, the sensors must be
charged approximately every 35 hours. Used with Normal or
Slow update rates, the operational life is appr oximately 60 or
250 hours respectively. The optimal sensor charging temperature
is from +10 to +25°C. The sensor can only be charged with the
PI Charger.
Note: Charging sensors at sub-zero temperatures can create explosive
gasses. Simrad A S assumes no liability for the improper
charging of sensors or the use of chargers not specified in
Simrad’s sensor charging documentation.
Numerical presentation
On the PI54 display, the distance to the bottom is displayed in
the numeric display. If the height is increasing or decreasing,
this is shown with two arrows and the variation in meters per
second. When the readings are stable, the digits are shown in
black colour. When the values are predicted, the digits are grey,
and if the contact is lost, the characters *.* * are shown in grey.
(A) = Sensor set up as sensor no.1.
(B) = Height measured in meters.
(C) = Current distance from the
sensor to the bottom.
(D) = The distance is decreasing by 1
meters per second.
(E) = Arrows pointing “out” means that the height is
increasing. Arrows pointing “in” means that the height is
decreasing.
(F) = Graphic alarm
(G) = Indicator, lit for every sensor interrogation.
(H) = Interference symbol.