Powering The 490 On And Off; Setting Up The 490 - NorthStar 490 Echosounder Operation Manual

Powering the 490 on and off

Setting up the 490

490 Echo Sounder Operations Manual Rev. B2
GPS
antenna
961/962
Processor
10-foot cable
(Northstar-supplied)
Figure 2: 961/962 echo sounder system components
As part of its power-up sequence, the navigator automatically
activates the 490.
The 490 is automatically shut off by the navigator when you
press and hold PWR until the screen goes dark.
Your 490 should be installed by a qualified marine technician.
Your satisfaction with the system's performance will be greatly
influenced by the practical knowledge and experience of the
installer. Unlike GPS or other marine electronics systems, echo
sounder installation is as much an art as a science.
The installation procedure includes setting up the following
options:
• the transducer's depth
• the speed and temperature
Control
Head
490
module
Ship's
Power
10-foot cable
(Northstar-supplied)
Chapter 1 - Welcome
33-foot cable
(part of transducer)
Transducer
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