Engine Monitoring - Magnum MMG 125 Operating Manual

ENGINE MONITORING

Engine information is shown on the Liquid Crystal Display (LCD) window in a toggling manner with the Generator
information after the first 60 seconds of operation and then every 5 seconds thereafter. The engine display screen
will show oil pressure, engine coolant temperature, fuel level and battery voltage.
• Oil Press:
• Eng Temp:
• Fuel Level: Displays the relative fuel level in the fuel tank in percent (50% = 1/2 tank, 75% = 3/4
• Vbat:
Additional information may be viewed while the unit is in "MANUAL" or "AUTO" mode. By pressing the "Page
Select" button, the operator will select one of the following screens; "Running" screen, "Password" screen, or
"History" screen. In each of these page selections the operator may press the " " or " " buttons on the "DIAG-
NOSTICS" keypad to display additional information as follows:
• "Running" screen:
• "Password" screen:
• "History" screen:
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Displays engine oil pressure. The display registers oil pressure between 0-100 psi.
Normal operating pressure is between 35-80 psi.
Displays the temperature of the engine's coolant. If the coolant temperature exceeds
the Maximum Water Temperature of 230° F the engine will automatically shut down.
Zero "0" will be displayed until a minimum temperature of 100° F is reached.
tank, etc.). If the fuel level drops below a programmed low fuel point – usually at 15%,
a low fuel warning and optional audio alarm will be activated. If the fuel level drops
below the programmed low fuel limit, usually at 5%, the engine will automatically shut
down.(Note: The MLG 25 does not display fuel level).
Displays the engine battery voltage. A normal reading is 13-14V on 12 volt systems and
24-26 on 24 volt systems, (with the engine running).
The operator may press the " " or " " buttons on the "DIAGNOSTICS" keypad to
display the "Alarm List" screen, "ECU Alarm List" screen, "Run Hours" screen, "ECU
Values" screen, Engine display screen and Generator display screen.
The operator may press the " " or " " buttons on the "DIAGNOSTICS" keypad to
move the ">" cursor up or down a list of text.
The operator may press the " " or " " buttons on the "DIAGNOSTICS" keypad to
move the ">" cursor up or down a list of the latest alarm or shutdown codes. Pressing
the "Enter" button at a particular selection will allow the operator to scroll to the right in
the LCD window to view the generator operating parameters at the time of the alarm or
shutdown.