Hysteresis Dynamometers / Engine Dynamometers HD and ED Series0 pages

M AGTROL
HD / ED
Data Sheet
HD Hysteresis Dynamometers
ED Engine Dynamometers
HD FEATURES
ED FEATURES
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16 Standard Models with Maximum Torque fromt
2.5 oz·in to 500 lb·in (18 mN·m to 56.5 N·m)
Hysteresis Braking System: provides precise torque
loading independent of shaft speed
Motor Testing: from no load to locked rotor
Standard Torque Units: English, Metric and SI
Accuracy: ±0.25% to ± 0.5% (full scale)
Air Flow Sensor: For protection against overheating
and operator error
Base Plates: available in long or short versions
Custom Dynamometers: for special torque and speed
requirements
Easy Calibration
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Maximum Torque: from 55 lb·in to 250 lb·in t
(6.5 N·m to 28 N·m)
Hysteresis Braking System
Motor Testing: from no load to locked rotor
Standard Torque Units: English, Metric & SI available
Accuracy: ±0.25% (full scale)
Blower Cooled: to maximize heat dissipation
Air Flow Sensor: for protection against overheating
and operator error
Specially Reinforced Load Cell: stainless steel pin at
contact point prevents premature wear from excess vibration
Larger Shaft: for additional strength
Gusseted Pillow Blocks: for additional front and rear
support
Easy Calibration
HD DESCRIPTION
ED DESCRIPTION
Hysteresis Brake Dynamometers (HD Series) are versatile and
ideal for testing in the low to medium power range (maximum
14 kW intermittent duty). With a Hysteresis Braking system,
the Dynamometers do not require speed to create torque,
and therefore can provide a full motor ramp from free-run
to locked rotor. Brake cooling is provided by convection
(no external source), by compressed air or by dedicated
blower, depending on the model. All Magtrol Hysteresis
Dynamometers have accuracy ratings of ± 0.25% to ± 0.5%
full scale — depending on size and system configuration.
With Magtrol’s Engine Dynamometers, high performance
motor testing is available to manufacturers and
users of small engines. Magtrol’s
Engine Dynamometers have been
designed to address the severe, high
vibration conditions inherent in
internal combustion engine testing.
Magtrol’s Engine Dynamometers
are highly accurate (± 0.25% of
full scale) and can be controlled
either manually or via a PC based
Controller. For a small engine test
stand, Magtrol offers a full line of
controllers, readouts and software.
To better integrate dynamometers into systems, Magtrol
offers both long and short base plates. The
shorter base plate facilitates easier motor
Model HD-710
mounting when used with T-slot tables
Hysteresis Dynamometer
and Magtrol Adjustable Motor
As with all Magtrol Hysteresis Dynamometers,
with long base plate
Fixtures, where as the long base
engine loading is provided by Magtrol’s Hysteresis
plates are better suited for table
Brake, which provides: torque independent of speed,
top testing.
including full load at 0 rpm; excellent repeatability;
frictionless torque with no wearing parts (other than bearings);
and long operating life with low maintenance. Magtrol
HD APPLICATIONS
provides a NIST traceable certificate of calibration, and
calibration beam with each Engine Dynamometer.
Magtrol motor test systems can be found in test labs, at
inspection stations, and on the manufacturing floors of most of
the world’s leading manufacturers, users and certifiers of small
ED APPLICATIONS
to medium sized electric, pneumatic and hydraulic motors,
The Engine Dynamometers are ideally suited for emissions
as well as internal combustion engines. Magtrol supplies
testing as set forth in CARB and EPA Clean Air Regulations.
motor test systems for a wide array of industries including:
The Dynamometers will offer superior performance on the
Appliance, Automotive, Aviation, Computer, HVAC, Lawn
production line, at incoming inspection or in the R&D lab.
and Garden, Medical and Dental, Electric Motor, Office
Equipment and Power Tools.
www.magtrol.com
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