NorthStar Navigation Echo Sounder NorthStar 491 - Manual (Page 50)

Page 46 491 Echo Sounder Operations Manual
Temperature graph Press TEMP GRAPH to turn the temperature graph on or off.
The temperature graph displays an orange temperature scale
at the left of the screen, and an orange line tracing out the
varying water temperature measurements, superimposed on
the echoes.
Speed through the
water
Press SPEED to turn the Speed Through the Water display on
or off. STW is displayed on the bottom right corner of the
screen.
Introducing snapshots
A snapshot is a picture of the 961/962’s echo sounder screen.
You can store up to 10 different snapshots of echo sounder
screens for later review. These can be stored on floppy disk
(one snapshot per floppy) or zip disk for permanent archiving.
The snapshot feature is not available in the 957/958 or 6000i.
Taking and storing
a snapshot
To take a snapshot, press MORE and then SNAPSHOT. The
echo sounder screen will be recorded at that instant.
To store the snapshot, you must save the snapshot in one of
the ten available storage slots. Choose a slot by pressing the
CURSOR PAD up or down to highlight the desired slot, then
press SAVE to store the snapshot.
This key won’t appear
unless a temperature
sensor is installed and
configured.
This key won’t appear
unless a speed sensor
is installed and
configured.