NorthStar 490 Echosounder, Руководство по эксплуатации

Страница: 10 / 76

Chapter 1 - Welcome
Page 1-6 490 Echo Sounder Operations Manual Rev. B2
the water and seabed can be displayed and analyzed on the
echo sounder screen. In essence, this system lets you see a
real-time cross section of what’s happening underneath your
vessel.
The model 490-S is a 600-watt single channel echo sounder
designed to be used with a transducer having a single ceramic
element capable of 50 and 200 kHz.
The model 490-D is a 1000-watt dual channel echo sounder
designed to be used with a transducer having dual ceramic
elements, one each for 50 and 200 kHz.
Figure 1, ”957 echo sounder system components,” below, and
Figure 2, ”961/962 echo sounder system components,” below,
show how the 490 connects to these navigators to enable echo
sounding functions.
Figure 1: 957/958 echo sounder system components
957
Navigator
490
module
2201
antenna
Transducer
Ship's
Power
10-foot cable
(Northstar-supplied)
10-foot cable
(Northstar-supplied)
33-foot cable
(part of transducer)