Operation Manual

Sensors
117
850-165186 / Rev.B
Sensor configuration
On delivery, all Catch sensors are configured in Channel 4 and
with Normal update rate. If you use more than one Catch sensor,
make sure that you set them up to operate on different channels
and with different sensor numbers!
Note: The sensor and the PI54 system setup must correspond,
otherwise the communication will not work.
To change the sensor setup (channel selection, update rate etc),
use the PI Configurator utility.
The Catch sensor can be configured (using the PI Configurator
software) to act as a FA701 catch sensor. This will allow the
sensor to be used with the Simrad FS trawl sonar. The
communication channel on the FS sonar must be set up to
correspond to the equivalent sensor number (1, 2 3 or 4).
The sensor update rate controls how often the amount of fish
caught is measured and transmitted to the vessel. Three settings
are available. Note that a faster update rate will decrease the
battery life.
• Fast (~5,3 sec): Recommended for trawling in areas where
the rate of filling is very high. Use this setting to avoid
damage to the trawl or excessive catches.
• Normal (~33 sec): Recommended for normal fishing.
• Slow (~125 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.
When the Catch sensor is configured as an FA701, it will have a
constant update rate of approximately 80 seconds. This r ate
must not be changed.
System configuration
Sensor configuration: The sensor must be configured with a
unique sensor number. Select update rate and channel number
according to the sensor’s configuration. Write down this
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 t hat with the filter on, it will
influence the signal spectrum shown in the Status display.
Catch/Bottom sensor filter: Switch this f ilter off. Set it to
Light or Heavy only if you experience excessive noise.