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DCR100 User's Manual
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appropriate NMEA 2000
display. If you don't see channel on/off status, refer to Section 4,
"Troubleshooting".
2.5 Configuring the DCR100
The DCR100 will transmit data over the NMEA 2000 network as it is shipped from the factory;
however, it may require configuration, depending on the type of switch monitored. There are
several configurable items within the DCR100, which are detailed in the remainder of this
section.
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You configure the DCR100 using a Maretron DSM250 display or other NMEA 2000
display
unit that is capable of configuring the DCR100. Please refer to the Maretron DSM250 User's
Manual for details.
2.5.1 Advanced Configuration...
Certain parameters do not normally need to be set in order for normal operation, but are
included in an advanced configuration section for use in special situations.
2.5.1.1 Current Sensor Zero Offset Calibration
The current sensor readings from each channel may occasionally drift such that you see small
positive or negative current readings from a channel even though no current is flowing. If this
happens, choose this menu option to calibrate the zero offset for the current sensors for all six
channels of the DCR100. Performing this calibration will place all channels into the "OFF"
state.
2.5.1.2 Device Instance
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NMEA 2000
provides a unique device instance for each switch monitoring device on a vessel.
This value should be programmed in each DCR100 so that each DCR100 is associated with a
unique device instance number. The default instance number is 0, which is used to indicate the
first DCR100 that is hooked to the network. Subsequent DCR100s connected to the network
would be numbered 1, 2, and so on.
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2.5.1.3 NMEA 2000
PGN Enable/Disable
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The DCR100 is capable of transmitting NMEA 2000
messages (or PGNs) associated with
monitored switch circuits. You may individually enable or disable each of these messages. You
may also change the rate of transmission of each of these messages if desired.
2.5.1.4 Restore Factory Defaults
Selecting this configuration option causes all stored parameters in the DCR100 to be reset to
the values they contained when the unit was manufactured.
2.5.2 Device Label
Program this parameter with a text string which identifies this particular DCR100, to allow you
to easily distinguish it from other DCR100's on the network.
Page 6
Revision 1.1
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