ASM1500 pages

Automatic Engine Controller

ASM-94012B
Revised 01-04
Catalog Section 40 & 75
(00-02-0098)

ASM150
■

Ideal for Generators
■ Solid-state Construction
■ Compatible with Most New or
Existing Murphy SWICHGAGE®
Monitoring Systems
■ Advanced, Rugged, Reliable
Microprocessor Based Design
■ Built-in Crank Disconnect and
Overspeed Switch
■ First-out Shutdown LED

Description

Features

The ASM150 is a user friendly, solid-state,
automatic engine controller. It provides basic
automatic start/stop capabilities plus other
features found on more sophisticated and
expensive controllers.

■

The ASM150 operates from 12 or 24 volt battery. It includes features such as selectable
crank and rest cycles, sensing circuit for crank
disconnect and overspeed, overcrank, and recrank protection on false starts. Four LEDs
indicate first-out shutdown for: low pressure,
high temperature, overcrank and overspeed. A
fifth LED indicates engine running.
Advanced microprocessor circuitry gives
the ASM150 high reliability and flexibility.
The ASM150 is compact and housed in a
corrosion-resistant case. It mounts flush in a
panel and requires very little room. Ideal for
small generator or engine panels.

Compact design
■ Optically Isolated Noise Resistant Inputs
■ Re-Cranks Engine on False Starts
■ Adjustable Lockout Time Delay
During Startup
■

Two (2) Element Adjustable Speed Switch
■ Outputs for Cranking and Fuel Valve
■ Outputs for Fault Annunciation
■ Lamp Test Terminal

Specifications

Outputs
• 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.

Power Input: 12 or 24 VDC.

Overspeed Trip Point Setting
From 30 to 8500 Hz.

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

Magnetic Pickup Input
Requires 2V rms minimum.

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

Shipping Weight: 1 lb. 2 oz. (0.51 kg.).

ASM-94012B page 1 of 2

Shipping Dimensions
5 x 4-3/4 x 2-3/4 in. (127 x 121 x 70 mm).