Marine Rescue Technologies Sea Marshall AU9, User Manual

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Sea Marshall AU9 User Manual v2.8
MRT Ltd. © 2014
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IV • Sea Marshall AU9 Overview
This user manual provides all the information required to operate and
test the Sea Marshall AU9 PLD. The Sea Marshall AU9 transmits on the
121.5MHz search and rescue (SAR) frequency and can be used to locate
a man overboard using a 121.5MHz receiver such as the MRT
Crewguard MKII or MRT SARfinder MKIII receiver.
Sea Marshall AU9 Activation
When armed, the Sea Marshall AU9 is designed to automatically
activate in an emergency when immersed in water. There is an
AUTO ACTIVATION WATER SENSOR on the top and
bottom of the unit. If the unit is continuously immersed in salt or
fresh water it will 'awaken' and auto-activate. A predetermined 2
second delay period prevents device activation caused by spray,
rain and splashing.
The Sea Marshall AU9 can also be manually activated by pressing
the round rubber ACTIVATION BUTTON on the front of the
device when armed. The design of the ARMING SWITCH , in
conjunction with the unit's RUBBER O-RING , prevents the device
from being accidentally activated while being carried or in transit.
The Sea Marshall AU9-D dive version does not have a round
rubber ACTIVATION BUTTON and the ARMING SWITCH is
used to manually arm and activate the device.
Crewguard MKII Base Unit MSLS Receiver SARfinder MK III Base Unit MSLS Receiver