Maretron ENGINE MONITORING SYSTEM EMS100 User Manual

 

 

 

if you have overhauled an engine, you can use this setting to preset the engine hours reading 
to the desired value. 
 

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. 
 

The EMS100 is capable of transmitting several different kinds of NMEA 2000

®

 messages (or 

PGNs) associated with engines. You can use this setting to enable or disable transmission of 
each of these message types. 
 

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. 
 

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.