Murphy ASM150 Engine Controls

  • Specifications


    Power Input: 6 to 28 VDC.

    Power Consumption Standby: <1 mA.

    Power Input: 12 or 24 VDC.

    Operating Temperature: -40 to 185°F (-40 to +85°C).

    Inputs: Ground or positive inputs for high temperature or low pressure sensors.


    • 5 A relay for cranking and fuel valve.
    • 300 mA transistor for fault annunciation.

    Cycle Crank Timer: Up to 8 attempts. Re-Cranks on false starts (fixed 30 seconds).

    Crank/Rest Cycle Timing: 4 to 25 seconds (adjustable).

    Lockout Time Delay: 1 to 25 seconds (adjustable). Locks out low oil and high temperature on start-up.

    Crank Disconnect Speed Setting: From 30 to 8500 Hz.

    Overspeed Trip Point Setting: From 30 to 8500 Hz.

    Magnetic Pickup Input: Requires 2V rms minimum.

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FW Murphy Service Network

Palmer Johnson's six-location factory-authorized service center network features:

  • Factory-trained technicians
  • Field service
  • Onsite troubleshooting and diagnostics
  • Unit removal and installation

For FW Murphy service, call 1-800-341-4334.

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