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
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.
3 Dual Station Operation
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 
.
OFF Hold down during power up
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.
ONOFF
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
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.
6 | Northstar Explorer D210 Installation and Operation Manual |