Applications
21
857-164636 / Rev.A
Purse seine
When used for purse seining, the PI32 system must have one or
more of the following sensors attached to the net:
Depth
sensor
,
Bottom Contact
sensor and
Temperature
sensor
.
The system is designed to be used with up to three sensors,
optimally two Depth sensors and one Temperature or Bottom
Contact sensor. The sensor configuration can be tailored to suite
individual needs.
(A) = (B) = Depth / Bottom Contact sensor
(C) = Temperature / Bottom Contact sensor
(D) = Depth sensor (placed on the headrope to warn if it sinks)
Using the recommended sensors, the PI32 system will provide
the following information:
•
When to begin pursing, and which speed to use for the most
efficient pursing
•
Location of the net related to the school
•
Bottom approximation without net contact
•
Net sink rate, when the net has stopped sinking, and when it
starts to rise
•
Water temperature at different depths
•
When the gear passes the thermocline