Calibration Beams and Weights

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Cal Beams and Weights

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_date] => 2017-04-05 12:20:44
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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.

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
    • 
 	
  • 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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                    [post_content] => Magtrol’s DSP 7010 Series - Dynamometer Controller employs advanced Digital Signal Processing technology to provide superior motor testing capabilities. Designed for use with any Magtrol Hysteresis, Eddy-Current or Powder Dynamometer, Magtrol In-Line Torque Transducer or auxiliary instrumentation, the DSP 7010 can provide complete PC control via the USB or GPIB interface. With up to 488 readings per second, the DSP 7010 is ideally suited for both the test lab and the production line.
                    [post_title] => DSP 7010 Series - Dynamometer 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.

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
    • 
 	
  • 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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