Instruction manual, SPT and MPT 31x series transponders

Main Parts
The transducer 60 (+-30) has a 60_ doughnut shaped
(horizontal) beam.
Depth and temperature sensors
For transponders with Depth and temperature sensors the
transponder head is equipped with a hole to enable direct contact
between the sensors and the sea water.
Note
Ensure that this hole is kept clean and open at all times.
Transducer
Hole for contact
sensors/ sea water
(Cd4514)
Figure 29 Transponder head for transponders with Depth and
Temperature sensors
Housing
For information on the housing, refer to Technical specification.
Bottom end cap / Release unit
The following end caps are available:
A standard bottom end cap that includes a pressure relief
valve and a shackle.
An end cap including the release mechanism (manually
reset).
160820/O 83