3 dual station operation, Transducer setting, Units of measure – NorthStar Navigation EXPLORER D210 User Manual
Page 6: Hold down during power up
Northstar Explorer D210 Installation and Operation Manual
6
Transducer Setting
A Transducer Setting is provided to allow
the Explorer D210 to be used with different
transducer types. The default setting (= 0.0) is
used for most transducers.
Some transducers ‘ring’ after the sonar transmit
pulse (just like hitting a bell). This ringing can be
interpreted as an echo from a shallow bottom.
The setting is used to increase the required level
that shallow echoes must meet before they will
be displayed.
If the Explorer D210 gives repeated false readings
of 1.5 to 3 feet depth while in deep water the
transducer setting should be increased. Adjust it
upward by 0.5 at a time and re test. The range of
values is -0.9 to +2.5. If the value is set too high it
could cause erratic readings in shallow water.
Changing the Transducer Setting:
1. Apply power while holding down
. The
display will show either HOF or SOF for 7
seconds. Continue to hold the key down.
2. The display will show tdr.
3. Release the key.
4. After 2 seconds the display will show the
Transducer Setting value eg 0.0.
5. Use and
to change the value.
6. To exit this mode, press and hold both
and
simultaneously.
Units of Measure
To select the displayed unit
1. Apply power while holding down
.
2. When the unit is on, release
. The display
will indicate the current display unit with:
Feet Metres
Fathoms
3. Use and
to change the value.
4. To exit this mode, press and hold both
and
simultaneously. Alternatively, if no keys
are pressed for a period of 5 seconds normal
depth display will resume.
Press simultaneously
The display will now indicate the current water
depth in the selected display unit.
Multiple Explorer 210 instruments can be
installed on a single vessel. These instruments
can be connected together and configured to
operate in a dual station configuration. One
instrument is designated as a master and all other
instruments, connected to it, are configured as
slaves. The master device is connected to the
depth transducer and determines the water
depth. This information is then displayed on all
slave devices connected to it. Slave devices do
not have transducers connected to them.
The slave devices can be configured to operate
as fully functional NMEA repeaters where
they display water depth, as displayed on
3 Dual Station Operation
the master device, and share common alarm
settings and keel offset values. In this mode
the common alarm settings can be changed or
activated/deactivated from either the master or
slave devices.
Alternatively, the slaves can be configured to
operate as independent slaves. In this mode the
slaves display the water depth received from the
master, but have independent alarm settings and
keel offset values.
Note: The instrument designated as the
master device is the only instrument connected to
the depth transducer.
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