MURPHYMATIC® Engine Throttle Controller

AT-04052B

Revised 04-04

Replaces AT-98113B

Catalog Section 40

(00-02-0567)

Model AT03069

Automatically adjusts engine speed to meet demands of pressure, level, load and temperature.

Speed changes made slowly and smoothly.

Saves fuel, engine wear, horsepower and labor.

Perfect for warm-up and cool-down on auto- mated systems.

One model for both 12 and 24 VDC systems.

Description

The AT03069 is a completely reliable heavy duty device developed specifically to auto- matically control engine speed to meet sys- tem demand. Low current, high torque, solid state switching and electronic clutch make it ideal for all automatic and semiautomatic engine systems. Used with the appropriate Murphy SWICHGAGE®, near constant pressure, level and load can be maintained. Check with our engineers for help with other applications where speed control can improve your system.

Applications

Pressure

City Water Systems.

Water Flood Injection.

Sprinkler Lateral Changes.

Make-up if a “Gang Pump” stops.

Multiple Hose-reel Irrigation Systems.

Level

Water or oil storage tanks.

Waterflood tanks.

Sewer disposal systems.

Flood control catch basins.

Temperature

Multi-engine cooling systems.

Air conditioned chilled water systems.

Engine load

Empty or fill reservoirs with a lower horsepower engine—fast when head is high—slow when head is low.

Specifications

Voltage: 11-28 VDC negative ground.

Maximum Current: 500 mA (1/2 amp).

Standby Current: Approx. 7 mA.

Increase and Decrease: Inputs float at approx. 8.4 VDC. Grounding inputs causes 8-18 mA of current to flow from either.

Torque: 25 inch pounds.

Sealed limit switches: Factory adjusted, controls maximum travel.

Linkage adjustment on lever arm—5 holes: Adjusts travel: 1-3/16 in. (30 mm); 1-11/16 in. (43 mm); 2 in. (51 mm); 2-1/4 in. (57 mm) approximately.

Travel Time: 11 to 20 seconds depending on the voltage and force applied.

Dimensions: See reverse side.

Net Weight: 5 lb. (2.27 kg)

Features

The AT03069 can enhance features of our SELECTRONIC® Micro-Controller units by allowing features such as:

Warm-up RPM Set point.

Minimum RPM Set point.

Maximum RPM Set point.

Preset Operating RPM Set point.

Auto Throttling To Match Flows

(as needed in flood control applications).

Maintaining System Pressure (as needed in booster station application).

Adjustable Rate Of Change In RPM (allowing fine tuning of overall system).

For more information, recommendations and quotations contact our engineering dept.

Warranty

A limited warranty on materials and workmanship is given with this FW Murphy product. A copy of the warranty may be viewed or printed by going to www.fwmurphy.com/support/warranty.htm

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Murphy AT03069 specifications Description, Applications, Specifications, Features

AT03069 specifications

The Murphy AT03069 is a sophisticated and reliable digital panel meter designed for precise measurement and monitoring in various industrial applications. Renowned for its versatility, the AT03069 is often utilized in engine monitoring, generator systems, and a wide range of machinery, providing operators with real-time data and feedback to optimize performance and enhance operational efficiency.

One of the standout features of the AT03069 is its multi-function capability. It can measure multiple parameters, including voltage, current, frequency, and temperature, all displayed on a clear and bright LED screen. This multi-functional aspect significantly reduces the need for multiple measurement devices, making it cost-effective and space-efficient. The panel meter supports numerous configurations, allowing users to tailor the setup according to their specific requirements.

The AT03069 utilises advanced digital signal processing technology, ensuring high accuracy in readings with minimal error margins. This digital processing not only enhances the precision of measurements but also allows for quick data updates, enabling operators to react rapidly to any changes in the monitored systems.

Another key characteristic of the AT03069 is its robust design, built to withstand harsh industrial environments. It boasts an IP67 rating, making it resistant to dust and moisture ingress, which is crucial for applications in challenging settings. The device is constructed from durable materials that ensure longevity and reliability even under extreme conditions.

Moreover, the Murphy AT03069 is equipped with alarm and control functionalities. Operators can set threshold limits and receive alerts when these limits are exceeded, facilitating timely interventions that can prevent potential issues. This can be particularly useful in monitoring critical systems where immediate action is required.

In terms of connectivity, the AT03069 supports various communication protocols, allowing for easy integration into existing systems. It can interface with a variety of sensors and devices, facilitating comprehensive system monitoring and data logging.

In summary, the Murphy AT03069 is a technologically advanced digital panel meter known for its multi-functionality, accuracy, durability, and alarm capabilities. Its design caters to the rigorous demands of industrial applications, making it an essential tool for operators aiming to enhance efficiency and ensure the smooth operation of their systems.