Simrad PI DEPTH - QUICK REFERENCE GUIDE REV B Quick Reference Manual

QUICK REFERENCE GUIDE
PI Depth sensor
Purpose
The PI Depth sensor monitors the
current depth of the net, as well as the rate
of any depth changes. All measurements
are related to the surface.

Daily operation

Once installed and put to use, the
sensor will automatically be switched
on once the waterswitch is activated.
After an initial startup, the sensor starts
transmission of the current depth when
this exceeds a predefined depth you
have selected. When the sensor is not
in use, check that the sensor lamp (D)
is not flashing from time to time, as this
indicates that the sensor is on and is
discharging its batteries.
If you operate with Fast update rate, the
sensor must be charged approximately
every 24 hours. Used with Normal
or Slow update rates, the operational
life is approximately 75 or 150 hours
respectively. The optimal sensor charging
temperature is from +10 to +25°C.
Note that charging sensors at sub-zero
temperatures can create explosive gasses.
Simrad AS assumes no liability for the
improper charging of sensors or the use
of chargers not specified in Simrad's
sensor charging documentation.
Sensor configuration
On delivery, all depth sensors are
configured in Channel 16 (300 m),
Channel 12 (600 m) or Channel 10 (1000
m) and with Fast update rate. If you use
more than one sensor, you must set them
up to operate in different channels.
Note: The sensor and the PI system
setup must correspond, otherwise the
communication will not work.
To change the sensor setup (channel
selection), use the PI Configurator utility.
The sensor update rate controls how
often the sensor reads and reports the
current depth. Three settings are available.
Note that a faster update rate will decrease
the battery life.
Fast (~4,5 sec): Recommended for purse
seine or trawl, allows immediate update
of critical depth information, and helps to
avoid damage to the purse seine or trawl.
Normal (~14 sec): Recommended for
trawl and normal fishing.
B
A
(CD11201F)
(A) = Two Depth sensors are mounted to the ground rope to monitor the depth.
(B) = One Bottom Contact sensor is mounted to the ground rope to detect if the net hits
the bottom.
Slow (~34 sec): Recommended if
maximum operational battery life before
charging is required. The system will be
more sensitive to bad communication
conditions due to the slow data update.
System configuration
Sensor configuration: The sensor
must be configured with a unique sensor
number. Select channel number according
to the sensor's configuration. Write down
the configuration for future reference.
Status & Receiver: The Interference
filter must be switched on. Set it to level
9 if you have noise problems from other
hydroacoustic sources. Note that with
the filter on, it will influence the signal
spectrum shown in the Status display.
Sensor filter: Switch this filter to Light.
Set it to Heavy only if you experience
excessive noise. Position Off will provide
raw data and fastest possible response.
(CD11201H)
Main parts
(A) = Negative charging / fastening lug
(B) = Positive charging / fastening lug
(C) = Communication link
(D) = Location of sensor lamp
(E) = Water switch sensor
(F) = Pressure sensor (label is removed)
A