Product Description
Magtrol offers these calibration beam assemblies and weights for calibrating HD-Series Hysteresis Dynamometers. To perform a successful dynamometer calibration, precision weights heavy enough to apply a torque at or close to the full scale rating are required. Magtrol WT Series Calibration Weights are equal to the dynamometer’s torque value, divided by the distance between the outer pin and centerline of the corresponding CB Series Calibration Beam. Calibration Weights are available in English or SI units. Calibration Beams are marked for both English and SI weights. For detailed dimension drawings, click on the model’s underlined link. A PDF document will open in a new window.(Adobe Acrobat Reader 7.0, or later, is required.)
Specifications and Drawings
For detailed dimension drawings, click on the corresponding link in the table below. A PDF document will open in a new window.
Calibration Beam Assembly | Downloads | For Hysteresis Dynamometer | Full Scale Torque (English) | Pin Location in (English) | Mass (English) | Weight Model (English) | Full Scale Torque (SI) | Pin Location cm (SI) | Mass (SI) | Weight Model (SI) | Weight Type & Tolerance |
---|
CB-106 | pdf | step | HD-106 | 2.50 oz·in | 2.500 | 1 oz | WT-106 | 18.00 mN·m | 9.18 | 20 g | WT-106M | Hook weights: “NIST Class F” |
CB-100 | pdf | step | HD-100 | 11.00 oz·in | 5.500 | 2 oz | WT-100 | 80.0 mN·m | 8.16 | 100 g | WT-100M | Hook weights: “NIST Class F” |
CB-400 | pdf | step | HD-400 | 40.0 oz·in | 5.000 | 8 oz | WT-400 | 280 mN·m | 14.28 | 200 g | WT-400M | Hook weights: “NIST Class F” |
CB-500 | pdf | step | HD-500 | 120.0 oz·in | 7.500 | 1.0 lb | WT-500 | 850 mN·m | 17.34 | 500 g | WT-500M | Hook weights: “NIST Class F” |
CB-500 | pdf | step | HD-510 | 120.0 oz·in | 7.500 | 1.0 lb | WT-500 | 850 mN·m | 17.34 | 500 g | WT-500M | Hook weights: “NIST Class F” |
CB-500 | pdf | step | HD-505 | 240 oz·in | 7.500 | 2.0 lb | WT-505 | 1700 mN·m | 17.34 | 1.0 kg | WT-505M | Hook weights: “NIST Class F” |
CB-500 | pdf | step | HD-515 | 240 oz·in | 7.500 | 2.0 lb | WT-505 | 1700 mN·m | 17.34 | 1.0 kg | WT-505M | Hook weights: “NIST Class F” |
CB-700 | pdf | step | HD-700 | 440 oz·in | 11.000 | 2.5 lb | WT-700 | 3.10 N·m | 31.61 | 1.0 kg | WT-700M | Hook weights: “NIST Class F” |
CB-700 | pdf | step | HD-710 | 440 oz·in | 11.000 | 2.5 lb | WT-700 | 3.10 N·m | 31.61 | 1.0 kg | WT-700M | Hook weights: “NIST Class F” |
CB-700 | pdf | step | HD-705 | 55.0 lb·in | 11.000 | 5.0 lb | WT-705 | 6.20 N·m | 31.61 | 2.0 kg | WT-705M | Hook weights: “NIST Class F” |
CB-700 | pdf | step | HD-715 | 55.0 lb·in | 11.000 | 5.0 lb | WT-705 | 6.20 N·m | 31.61 | 2.0 kg | WT-705M | Hook weights: “NIST Class F” |
CB-ED-715 | pdf | ED-715 | 55.0 lb·in | 11.000 | 5.0 lb | WT-705 | 6.20 N·m | 31.61 | 2.0 kg | WT-705M | Hook weights: “NIST Class F” |
CB-800 | pdf | step | HD-800 | 125.0 lb·in | 15.625 | 8.0 lb | WT-800 | 14.00 N·m | 47.59 | 3.0 kg | WT-800M | Slotted weights: “ANSI/ASTM Class 6” |
CB-800 | pdf | step | HD-810 | 125.0 lb·in | 15.625 | 16.0 lb | WT-800 | 14.00 N·m | 47.59 | 3.0 kg | WT-800M | Slotted weights: “ANSI/ASTM Class 6” |
CB-800 | pdf | step | HD-805 | 250 lb·in | 15.625 | 16.0 lb | WT-805 | 28.0 N·m | 47.59 | 6.0 kg | WT-805M | Slotted weights: “ANSI/ASTM Class 6” |
CB-800 | pdf | step | HD-815 | 250 lb·in | 15.625 | 16.0 lb | WT-805 | 28.0 N·m | 47.59 | 6.0 kg | WT-805M | Slotted weights: “ANSI/ASTM Class 6” |
CB-ED-815 | pdf | ED-815 | 250 lb·in | 15.625 | 16.0 lb | WT-805 | 28.0 N·m | 47.59 | 6.0 kg | WT-805M | Slotted weights: “ANSI/ASTM Class 6” |
CB-825 | pdf | step | HD-825 | 500 lb·in | 20.000 | 25.0 lb | WT-825 | 56.5 N·m | 38.41 | 15.0 kg | WT-825M | Slotted weights: “ANSI/ASTM Class 6” |
Old-Style Calibration Beams
***Obsolete. Information for Reference Only.***
For calibrating HD-Series Hysteresis Dynamometers purchased prior to 2007, Magtrol offers the following calibration beam assemblies. For detailed dimension drawings, click on the model’s underlined link. A PDF document will open a new window.(Adobe Acrobat Reader 7.0, or later, is required.)
Calibration Beam Assembly Stock Code Number | For Hysteresis Dynamometer | Full Scale Torque (English) | Pin Location in (English) | Full Scale Torque (SI) | Pin Location cm (SI) |
---|
400106 | HD-106 | 2.50 oz·in | 3.000 | 18.00 mN·m | 6.00 |
400100 | HD-100 | 11.00 oz·in | 5.000 | 80.0 mN·m | 10.00 |
400400 | HD-400 | 40.0 oz·in | 5.000 | 280 mN·m | 10.00 |
400500 | HD-500 | 120.0 oz·in | 5.000 | 850 mN·m | 10.00 |
400500 | HD-510 | 120.0 oz·in | 5.000 | 850 mN·m | 10.00 |
400500 | HD-505 | 240 oz·in | 5.000 | 1.7 N·m | 10.00 |
400500 | HD-515 | 240 oz·in | 5.000 | 1.7 N·m | 10.00 |
404869 | HD-700 | 425 oz·in | 10.000 | 3.0 N·m | 20.00 |
404869 | HD-710 | 400 oz·in | 10.000 | 3.25 N·m | 20.00 |
404869 | HD-705 | 50.0 lb·in | 10.000 | 6.0 N·m | 20.00 |
404869 | HD-715 | 55.0 lb·in | 10.000 | 6.5 N·m | 20.00 |
404871 | ED-715 | 55.0 lb·in | 10.000 | 6.20 N·m | 20.00 |
400800 | HD-800 | 100.0 lb·in | 20.000 | 12.0 N·m | 50.00 |
400800 | HD-810 | 125.0 lb·in | 20.000 | 14.0 N·m | 50.00 |
400800 | HD-805 | 200 lb·in | 20.000 | 24.0 N·m | 50.00 |
400800 | HD-815 | 250 lb·in | 20.000 | 28.0 N·m | 50.00 |
404826 | ED-815 | 250 lb·in | 20.000 | 28.0 N·m | 38.41 |
404801 | HD-825 | 500 lb·in | 20.000 | 56.5 N·m | 50.00 |
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[post_content] => 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% full scale — depending on size and system configuration.
To better integrate dynamometers into systems, Magtrol offers both long and short base plates. The shorter base plate facilitates easier motor mounting when used with T-slot tables and Magtrol Adjustable Motor Fixtures, where as the long base plates are better suited for table top testing.
Features
- 16 Standard Models with Maximum Torque from 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
- Accuracy: ±0.25% (Full Scale)
- Air Flow Sensor: For protection against overheating and operator error
- Standard Torque Units: English, Metric and SI
- Base Plate: Available in long or short versions
- Custom Dynamometers: for special torque and speed requirements
- Easy Calibration
The Hysteresis Braking System
All Magtrol Hysteresis Dynamometers absorb power with a unique Hysteresis Braking System which provides frictionless torque loading independent of shaft speed. The Hysteresis Brake provides torque by the use of two basic components - a reticulated pole structure and a specialty steel rotor/shaft assembly - fitted together but not in physical contact. Until the pole structure is energized, the drag cup can spin freely on its shaft bearings. When a magnetizing force from the field coil is applied to the pole structure, the air gap becomes a flux field and the rotor is magnetically restrained, providing a braking action between the pole structure and rotor.
[post_title] => HD Series - Hysteresis Dynamometers
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[post_content] => Magtrol's Model DSP7000 High-Speed Programmable. Dynamometer Controller employs state-of-the-art Digital Signal Processing Technology to provide superior motor testing capabilities. Designed for use with any Magtrol
Hysteresis,
Eddy-Current or
Powder Brake Dynamometer, Magtrol In-Line
Torque Transducer or auxiliary instrumentation, the DSP7000 can provide complete PC control via IEEE-488 or RS-232 interface. With up to 500 readings per second, the DSP7000 is ideally suited for both the test lab and the production line.
[post_title] => DSP7000 - High Speed Programmable Controller
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[post_content] => Magtrol’s AMF Series Adjustable Motor Fixtures are used to secure small to medium-sized motors in place while running any test. These extremely versatile fixtures also enable easy motor centering for coupling to a Magtrol
HD Series Hysteresis Dynamometer. (Couplings can be supplied upon request.) Various motor lengths are accommodated by either an attached T-slotted base plate or sliding base, depending on the model.
The AMF-1, -2 and -3 Fixtures feature one or two adjustable bridges, each fitted with a fluted knob clamp screw, to allow clamping anywhere along the axis of the motor. The adjustable bridge on the AMF-V Fixture incorporates a straight-line action clamp with a V-angle rubber padded clamp to maximize the mounting area.
To safeguard the motor, locking thumb screws provide protection against vibration and all motor-to-fixture contact surfaces are nylon padded for scratch-free clamping.
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[post_content] => Test from a stationary position or move a dynamometer to alternate testing stations with ease with Magtrol's Dynamometer Table. The stand is designed from lightweight aluminum with casters for smooth mobility, and is sturdy enough to support even the heaviest of Magtrol dynamometers. The design can be retrofitted to any Magtrol dynamometer and is easily reconfigured for added versatility.
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[post_content] => 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% full scale — depending on size and system configuration.
To better integrate dynamometers into systems, Magtrol offers both long and short base plates. The shorter base plate facilitates easier motor mounting when used with T-slot tables and Magtrol Adjustable Motor Fixtures, where as the long base plates are better suited for table top testing.
Features
- 16 Standard Models with Maximum Torque from 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
- Accuracy: ±0.25% (Full Scale)
- Air Flow Sensor: For protection against overheating and operator error
- Standard Torque Units: English, Metric and SI
- Base Plate: Available in long or short versions
- Custom Dynamometers: for special torque and speed requirements
- Easy Calibration
The Hysteresis Braking System
All Magtrol Hysteresis Dynamometers absorb power with a unique Hysteresis Braking System which provides frictionless torque loading independent of shaft speed. The Hysteresis Brake provides torque by the use of two basic components - a reticulated pole structure and a specialty steel rotor/shaft assembly - fitted together but not in physical contact. Until the pole structure is energized, the drag cup can spin freely on its shaft bearings. When a magnetizing force from the field coil is applied to the pole structure, the air gap becomes a flux field and the rotor is magnetically restrained, providing a braking action between the pole structure and rotor.
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