Maretron ENGINE MONITORING SYSTEM EMS100 - Manual (Page 11)

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Revision 1.1 Page 7
if you have overhauled an engine, you can use this setting to preset the engine hours reading
to the desired value.
2.5.15 Flywheel Teeth
The EMS100 needs to know the number of flywheel teeth on the engine (or the number of
alternator pulses per revolution) in order to correctly calculate engine RPM. Use this setting to
program the EMS100 with the number of flywheel teeth or alternator pulses per revolution for
the engine the EMS100 is connected to. The factory default value of this parameter is 129.
2.5.16 NMEA 2000
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PGN Enable/Disable
The EMS100 is capable of transmitting several different kinds of NMEA 2000
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messages (or
PGNs) associated with engines. You can use this setting to enable or disable transmission of
each of these message types.
2.5.17 Restore Factory Defaults
This setting will cause all user-programmable settings on the EMS100 to be restored to the
values that were in the EMS100 when it was shipped from the factory.
3 Maintenance
Regular maintenance is important to ensure continued proper operation of the Maretron
EMS100. Perform the following tasks periodically:
• Clean the unit with a soft cloth. Do not use chemical cleaners as they may remove
paint or markings or may corrode the EMS100 enclosure or seals.
• Ensure that the unit is mounted securely and cannot be moved relative to the mounting
surface. If the unit is loose, tighten the mounting screws.
• Check the security of the connections to the engine wiring harness and re-seat or
tighten if necessary.