MURPHYMATIC Engine Throttle Controller

MURPHYMATIC Engine Throttle Controller
AT-98113B
Effective 12-98
Replaces AT-7231B
Catalog Section 40
®
FRANK W.
MFR.
(00-02-0099)
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MURPHYMATIC® Engine Throttle Controller
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Specifications
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The AT67207 is a completely reliable heavy
duty device developed specifically to automatically control engine speed to meet system
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.
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.
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Description
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Voltage: 12 VDC or 24 VDC
negative ground (specify).
Current: 500 mA (1/2 amp).
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.
Sealed limit switches: Factory adjusted,
controls maximum travel.
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Torque: 25 inch pounds.
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Applications
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.
Dimensions: See reverse side.
Net Weight: 5 lb. (2.27 kg)
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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
automated systems.
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Model AT67207
Features
The AT67207 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 two-year limited warranty on materials
and workmanship is given with this Murphy
product. Details are available on request and
are packed with each unit.
Operation
How to Order
A Murphy SWICHGAGE * constantly monitors
pressure, level, temperature or load. Adjustable high
and low contacts on SWICHGAGE® are set slightly
above and below desired operating point. When
demand changes, pointer touches appropriate high
or low contact and signals speed change.
AT67207 controller responds only so long as contact is made. The controller stops immediately when
contacts separate. Slow, smooth action prevents
“hunting” or “surging” on normal applications.
®
AT67207 – ___
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Voltage
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12 = 12 VDC
24 = 24 VDC
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type control. For more information, recommendations and
quotations contact our engineering dept.
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*Mercury tube or snap-action switches are not suitable for this
Typical Wiring
6-3/4 in.
(171 mm)
5-1/8 in.
(130 mm)
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4-3/4 in.
(121 mm)
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2
3
AT67207
5-1/2 in.
(140 mm)
Battery
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SWICHGAGE®
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7/8 in.
(22 mm)
3-5/8 in.
(92 mm)
5-7/8 in.
(149 mm)
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3-3/4 in.
(95 mm)
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Dimensions
12-1/4 in.
(311 mm)
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15 in.
(381 mm)
In order to consistently bring you the highest quality, full featured products, we reserve the right to change our specifications and designs at any time.
FRANK W. MURPHY MANUFACTURER P.O. Box 470248; Tulsa, Oklahoma 74147; USA tel. (918) 627-3550 fax (918) 664-6146 e-mail [email protected] http://www.fwmurphy.com
®
FRANK W.
Since 1939
MFR.
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FI
REG
ST
RM
BSI
ERED
NATIONAL
ACCREDITATION
OF CERTIFICATION
BODIES
USA–ISO 9001 FM 28221
UK–ISO 9002 FM 29422
Printed in U.S.A.
■ FRANK W. MURPHY SOUTHERN DIVISION
P.O. Box 1819; Rosenberg, Texas 77471; USA
tel. (281) 342-0297 fax (281) 341-6006
e-mail [email protected]
■ FRANK W. MURPHY, LTD.
Church Rd.; Laverstock, Salisbury SP1 1QZ; U.K.
tel. +44 1722 410055 fax +44 1722 410088
e-mail [email protected]
http://www.fwmurphy.co.uk
■ FRANK W. MURPHY FRANCE
tel. +33 1 30 762626 fax +33 1 30 763989
■ MURPHY DE MEXICO, S.A. DE C.V.
Blvd. Antonio Rocha Cordero 300, Fracción del Aguaje
San Luis Potosí, S.L.P.; México 78384
tel. +52-48-206264 fax +52-48-206336
e-mail [email protected]
■ MURPHY SWITCH OF CALIFORNIA
P.O. Box 900788; Palmdale, California 93590; USA
tel. (805) 272-4700 fax (805) 947-7570
e-mail [email protected]
http://www.murphyswitch.com
■ FRANK W. MURPHY PTE., LTD.
No. 2 Tuas South Street 2,
Sprintecs Bldg., #02-01/02
Singapore 638042
tel. +65 863-1398 fax +65 863-0208
e-mail [email protected]
■ MACQUARRIE CORPORATION
1620 Hume Highway;
Campbellfield, Vic 3061; Australia
tel. +61 3 9358-5555 fax +61 3 9358-5558
e-mail [email protected]
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