MURPHYMATIC® Engine Throttle Controller
Revised
Replaces
Catalog Section 40
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.
•
•Multiple
•Water or oil storage tanks.
•Waterflood tanks.
•Sewer disposal systems.
•Flood control catch basins.
•
•Air conditioned chilled water systems.
Engine loadEmpty or fill reservoirs with a lower horsepower
Specifications
Voltage:
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
Torque: 25 inch pounds.
Sealed limit switches: Factory adjusted, controls maximum travel.
Linkage adjustment on lever
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®
•
•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