1WB23 & 1WB27 Data Sheet0 pages

M AGTROL

1WB23 & 1WB27
Data Sheet

1WB23 & 1WB27 High-Speed
Eddy-Current Dynamometers
Features
•t
•t
•t
•t
•t
•t
•t
•t
•t

Torque: 80 mN·m and 150 mN·m
Speed: up to 100,000 rpm
Power: 250 W continuous; up to 500W(1WB23) or
1000W (1WB27) intermittent
Low inertia
Very low residual torque
Stable braking torque, without blows
Measuring system with air-bearing
Data acquisition via DSP7000 Controller and t
M-TEST 7 Software
Built-in electronics with Torque and Speed
measurement

Description

1WB23 Dynamometer

Complete PC Control
Magtrol’s M-TEST 7 Software is a state-of-the-art motor
testing program for Windows®-based data acquisition. Used
with a Magtrol DSP7000 Programmable Dynamometer
Controller, Magtrol M-TEST 7 Software provides the control
of any Magtrol Eddy-Current or Powder Brake Dynamometer
and runs test sequences in a manner
Magtrol offers three types of dynamometer
best suited to the overall accuracy and
brakes to absorb load: Hysteresis, Eddyefficiency of the Magtrol Motor Test
Current and Magnetic Powder. Each type
System. The data that is generated
of Dynamometer has advantages and
by Magtrol’s Motor Testing Software
limitations and choosing the correct one will
can be stored, displayed and printed
depend largely on the type of testing to be
in tabular or graphic formats, and can
performed. With over 50 models to choose
be easily imported into a spreadsheet.
from, Magtrol Sales professionals are readily

Magtrol’s 1WB23 and 1WB27 Eddy-Current Dynamometers
are designed for very-high-speed motors and turbine testing
applications. By providing a braking torque that is proportional
to the rotational speed, rated torque is reached at the rated
speed.
The Dynamometers feature a low level
of inertia, due to small rotor dimensions,
and brake cooling is provided by air
flow inside the dynamometer housing.
A PT temperature sensor continuously
monitors the brake temperature and
triggers the DSP7000 Controller to
stop the brake excitation current in
order to protect the dynamometer from
overheating.

available to assist in selecting the proper
Dynamometer to meet your testing needs.

Torque is measured by a reaction-force transducer placed on
the stator. The dynamometer has a torque measuring accuracy
rating of ±0.5% full scale. The speed is measured by an optical
sensor and a 2-bit encoder. This sensor measures speeds
between 10,000 and 100,000 rpm with a full scale accuracy
of ± 0.06 % (using a DSP7000).

1

Written in LabVIEW™, M-TEST 7 has
the flexibility to test a majority of motor
types in a variety of ways. Because of
LabVIEW’s versatility, obtaining data from other sources (e.g.
thermo torques), controlling motor power and providing audio/
visual indicators is relatively easy.
Magtrol’s M-TEST 7 Software is ideal for simulating loads,
cycling the unit under test and motor ramping. Because it is
easy to gather data and duplicate tests, the software is ideal
for use in engineering labs. Tests can be programmed to run
on their own and saved for future use allowing for valuable
time savings in production testing and incoming/outgoing
inspection.

www.magtrol.com