Madman EMS-3 Operating Manual
Page 17
Low Alarm:
This enables or disables the RPM low alarm.
Low Alarm:
Enter the RPM threshold for when the low alarm must be activated. Any RPM value below this value will activate the
alarm.
Pulses/Rev:
Enter the number of pulses per rev. For engines with an uneven number of cylinders like three cylinder four stroke
engines you can enter values containing fractions (usually 1.5 in this example). Most four stroke engines would generate
one pulse for every two revolutions per cylinder. A four cylinder automotive four stroke engine would thus generate 2
pulses per revolution as measured on the coil. Alternatively the W signal from the alternator can be used. Here the
onboard diagnostics can be used to get accurate rpm or an external RPM gauge must be used and the pulses/rev
calculated from there.
Increment:
Select the step size between successive RPM values eg. if the RPM value is 4003 RPM and the “INCREMENT” is 5 then
the actual value shown is 4005 RPM.
Label:
Enter a label to easily identify your RPM reading.
Alarm:
Select which output the alarm must activate.
4.7 Oil Pressure Switch Setup
Display:
Select "ON" to enable the Oil Pressure switch display.
The oil pressure switch uses the analog channel 4 input.
Switch NO/NC:
Select if the pressure switch is normally open (NO) or normally closed (NC) .
Alarm:
Select which output the alarm must activate.
