Calibration Beams and Weights

Support & Downloads

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 AssemblyDownloadsFor Hysteresis DynamometerFull 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-106pdf | stepHD-1062.50 oz·in2.5001 ozWT-10618.00 mN·m9.1820 gWT-106MHook weights: “NIST Class F”
CB-100pdf | stepHD-10011.00 oz·in5.5002 ozWT-10080.0 mN·m8.16100 gWT-100MHook weights: “NIST Class F”
CB-400pdf | stepHD-40040.0 oz·in5.0008 ozWT-400280 mN·m14.28200 gWT-400MHook weights: “NIST Class F”
CB-500pdf | stepHD-500120.0 oz·in7.5001.0 lbWT-500850 mN·m17.34500 gWT-500MHook weights: “NIST Class F”
CB-500pdf | stepHD-510120.0 oz·in7.5001.0 lbWT-500850 mN·m17.34500 gWT-500MHook weights: “NIST Class F”
CB-500pdf | stepHD-505240 oz·in7.5002.0 lbWT-5051700 mN·m17.341.0 kgWT-505MHook weights: “NIST Class F”
CB-500pdf | stepHD-515240 oz·in7.5002.0 lbWT-5051700 mN·m17.341.0 kgWT-505MHook weights: “NIST Class F”
CB-700pdf | stepHD-700440 oz·in11.0002.5 lbWT-7003.10 N·m31.611.0 kgWT-700MHook weights: “NIST Class F”
CB-700pdf | stepHD-710440 oz·in11.0002.5 lbWT-7003.10 N·m31.611.0 kgWT-700MHook weights: “NIST Class F”
CB-700pdf | stepHD-70555.0 lb·in11.0005.0 lbWT-7056.20 N·m31.612.0 kgWT-705MHook weights: “NIST Class F”
CB-700pdf | stepHD-71555.0 lb·in11.0005.0 lbWT-7056.20 N·m31.612.0 kgWT-705MHook weights: “NIST Class F”
CB-ED-715pdfED-71555.0 lb·in11.0005.0 lbWT-7056.20 N·m31.612.0 kgWT-705MHook weights: “NIST Class F”
CB-800pdf | stepHD-800125.0 lb·in15.6258.0 lbWT-80014.00 N·m47.593.0 kgWT-800MSlotted weights: “ANSI/ASTM Class 6”
CB-800pdf | stepHD-810125.0 lb·in15.62516.0 lbWT-80014.00 N·m47.593.0 kgWT-800MSlotted weights: “ANSI/ASTM Class 6”
CB-800pdf | stepHD-805250 lb·in15.62516.0 lbWT-80528.0 N·m47.596.0 kgWT-805MSlotted weights: “ANSI/ASTM Class 6”
CB-800pdf | stepHD-815250 lb·in15.62516.0 lbWT-80528.0 N·m47.596.0 kgWT-805MSlotted weights: “ANSI/ASTM Class 6”
CB-ED-815pdfED-815250 lb·in15.62516.0 lbWT-80528.0 N·m47.596.0 kgWT-805MSlotted weights: “ANSI/ASTM Class 6”
CB-825pdf | stepHD-825500 lb·in20.00025.0 lbWT-82556.5 N·m38.4115.0 kgWT-825MSlotted 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 NumberFor Hysteresis DynamometerFull Scale Torque (English)Pin Location in (English)Full Scale Torque (SI)Pin Location cm (SI)
400106HD-1062.50 oz·in3.00018.00 mN·m6.00
400100HD-10011.00 oz·in5.00080.0 mN·m10.00
400400HD-40040.0 oz·in5.000280 mN·m10.00
400500HD-500120.0 oz·in5.000850 mN·m10.00
400500HD-510120.0 oz·in5.000850 mN·m10.00
400500HD-505240 oz·in5.0001.7 N·m10.00
400500HD-515240 oz·in5.0001.7 N·m10.00
404869HD-700425 oz·in10.0003.0 N·m20.00
404869HD-710400 oz·in10.0003.25 N·m20.00
404869HD-70550.0 lb·in10.0006.0 N·m20.00
404869HD-71555.0 lb·in10.0006.5 N·m20.00
404871ED-71555.0 lb·in10.0006.20 N·m20.00
400800HD-800100.0 lb·in20.00012.0 N·m50.00
400800HD-810125.0 lb·in20.00014.0 N·m50.00
400800HD-805200 lb·in20.00024.0 N·m50.00
400800HD-815250 lb·in20.00028.0 N·m50.00
404826ED-815250 lb·in20.00028.0 N·m38.41
404801HD-825500 lb·in20.00056.5 N·m50.00
WP_Query Object
(
    [query] => Array
        (
            [post_type] => product
            [ignore_sticky_posts] => 1
            [no_found_rows] => 1
            [posts_per_page] => -1
            [orderby] => rand
            [post__in] => Array
                (
                    [0] => 410
                    [1] => 736
                    [2] => 783
                    [3] => 613
                )

            [post__not_in] => Array
                (
                    [0] => 891
                )

        )

    [query_vars] => Array
        (
            [post_type] => product
            [ignore_sticky_posts] => 1
            [no_found_rows] => 1
            [posts_per_page] => -1
            [orderby] => rand
            [post__in] => Array
                (
                    [0] => 410
                    [1] => 736
                    [2] => 783
                    [3] => 613
                )

            [post__not_in] => Array
                (
                    [0] => 891
                )

            [error] => 
            [m] => 
            [p] => 0
            [post_parent] => 
            [subpost] => 
            [subpost_id] => 
            [attachment] => 
            [attachment_id] => 0
            [name] => 
            [static] => 
            [pagename] => 
            [page_id] => 0
            [second] => 
            [minute] => 
            [hour] => 
            [day] => 0
            [monthnum] => 0
            [year] => 0
            [w] => 0
            [category_name] => 
            [tag] => 
            [cat] => 
            [tag_id] => 
            [author] => 
            [author_name] => 
            [feed] => 
            [tb] => 
            [paged] => 0
            [meta_key] => 
            [meta_value] => 
            [preview] => 
            [s] => 
            [sentence] => 
            [title] => 
            [fields] => 
            [menu_order] => 
            [embed] => 
            [category__in] => Array
                (
                )

            [category__not_in] => Array
                (
                )

            [category__and] => Array
                (
                )

            [post_name__in] => Array
                (
                )

            [tag__in] => Array
                (
                )

            [tag__not_in] => Array
                (
                )

            [tag__and] => Array
                (
                )

            [tag_slug__in] => Array
                (
                )

            [tag_slug__and] => Array
                (
                )

            [post_parent__in] => Array
                (
                )

            [post_parent__not_in] => Array
                (
                )

            [author__in] => Array
                (
                )

            [author__not_in] => Array
                (
                )

            [suppress_filters] => 
            [cache_results] => 
            [update_post_term_cache] => 1
            [lazy_load_term_meta] => 1
            [update_post_meta_cache] => 1
            [nopaging] => 1
            [comments_per_page] => 50
            [order] => 
        )

    [tax_query] => WP_Tax_Query Object
        (
            [queries] => Array
                (
                )

            [relation] => AND
            [table_aliases:protected] => Array
                (
                )

            [queried_terms] => Array
                (
                )

            [primary_table] => wp_posts
            [primary_id_column] => ID
        )

    [meta_query] => WP_Meta_Query Object
        (
            [queries] => Array
                (
                )

            [relation] => 
            [meta_table] => 
            [meta_id_column] => 
            [primary_table] => 
            [primary_id_column] => 
            [table_aliases:protected] => Array
                (
                )

            [clauses:protected] => Array
                (
                )

            [has_or_relation:protected] => 
        )

    [date_query] => 
    [request] => SELECT   wp_posts.* FROM wp_posts  WHERE 1=1  AND wp_posts.ID IN (410,736,783,613) AND wp_posts.post_type = 'product' AND (wp_posts.post_status = 'publish')  ORDER BY RAND() 
    [posts] => Array
        (
            [0] => WP_Post Object
                (
                    [ID] => 783
                    [post_author] => 1
                    [post_date] => 2017-04-05 18:46:23
                    [post_date_gmt] => 2017-04-05 18:46:23
                    [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.
                    [post_title] => AMF Series - Adjustable Motor Fixtures
                    [post_excerpt] => 
                    [post_status] => publish
                    [comment_status] => open
                    [ping_status] => closed
                    [post_password] => 
                    [post_name] => amf-adjustable-motor-fixtures
                    [to_ping] => 
                    [pinged] => 
                    [post_modified] => 2023-04-27 11:47:41
                    [post_modified_gmt] => 2023-04-27 15:47:41
                    [post_content_filtered] => 
                    [post_parent] => 0
                    [guid] => https://www.magtrol.com/?post_type=product&p=783
                    [menu_order] => 62
                    [post_type] => product
                    [post_mime_type] => 
                    [comment_count] => 0
                    [filter] => raw
                )

            [1] => WP_Post Object
                (
                    [ID] => 410
                    [post_author] => 1
                    [post_date] => 2017-04-05 12:20:44
                    [post_date_gmt] => 2017-04-05 12:20:44
                    [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 [post_excerpt] => [post_status] => publish [comment_status] => open [ping_status] => closed [post_password] => [post_name] => hysteresis-dynamometers-hd-series [to_ping] => [pinged] => [post_modified] => 2023-04-13 15:01:40 [post_modified_gmt] => 2023-04-13 19:01:40 [post_content_filtered] => [post_parent] => 0 [guid] => https://www.magtrol.com/?post_type=product&p=410 [menu_order] => 43 [post_type] => product [post_mime_type] => [comment_count] => 0 [filter] => raw ) [2] => WP_Post Object ( [ID] => 736 [post_author] => 1 [post_date] => 2017-04-05 18:17:59 [post_date_gmt] => 2017-04-05 18:17:59 [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. [post_title] => Dynamometer Tables [post_excerpt] => [post_status] => publish [comment_status] => open [ping_status] => closed [post_password] => [post_name] => dynamometer-tables [to_ping] => [pinged] => [post_modified] => 2023-08-15 12:38:46 [post_modified_gmt] => 2023-08-15 16:38:46 [post_content_filtered] => [post_parent] => 0 [guid] => https://www.magtrol.com/?post_type=product&p=736 [menu_order] => 61 [post_type] => product [post_mime_type] => [comment_count] => 0 [filter] => raw ) [3] => WP_Post Object ( [ID] => 613 [post_author] => 1 [post_date] => 2017-04-05 15:38:07 [post_date_gmt] => 2017-04-05 15:38:07 [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 [post_excerpt] => [post_status] => publish [comment_status] => open [ping_status] => closed [post_password] => [post_name] => dsp7000-high-speed-programmable-controller [to_ping] => [pinged] => [post_modified] => 2023-09-29 11:25:25 [post_modified_gmt] => 2023-09-29 15:25:25 [post_content_filtered] => [post_parent] => 0 [guid] => https://www.magtrol.com/?post_type=product&p=613 [menu_order] => 57 [post_type] => product [post_mime_type] => [comment_count] => 0 [filter] => raw ) ) [post_count] => 4 [current_post] => -1 [in_the_loop] => [post] => WP_Post Object ( [ID] => 783 [post_author] => 1 [post_date] => 2017-04-05 18:46:23 [post_date_gmt] => 2017-04-05 18:46:23 [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. [post_title] => AMF Series - Adjustable Motor Fixtures [post_excerpt] => [post_status] => publish [comment_status] => open [ping_status] => closed [post_password] => [post_name] => amf-adjustable-motor-fixtures [to_ping] => [pinged] => [post_modified] => 2023-04-27 11:47:41 [post_modified_gmt] => 2023-04-27 15:47:41 [post_content_filtered] => [post_parent] => 0 [guid] => https://www.magtrol.com/?post_type=product&p=783 [menu_order] => 62 [post_type] => product [post_mime_type] => [comment_count] => 0 [filter] => raw ) [comment_count] => 0 [current_comment] => -1 [found_posts] => 0 [max_num_pages] => 0 [max_num_comment_pages] => 0 [is_single] => [is_preview] => [is_page] => [is_archive] => 1 [is_date] => [is_year] => [is_month] => [is_day] => [is_time] => [is_author] => [is_category] => [is_tag] => [is_tax] => [is_search] => [is_feed] => [is_comment_feed] => [is_trackback] => [is_home] => [is_404] => [is_embed] => [is_paged] => [is_admin] => [is_attachment] => [is_singular] => [is_robots] => [is_posts_page] => [is_post_type_archive] => 1 [query_vars_hash:WP_Query:private] => 1ae72ac53974c32c9632b5a238b40758 [query_vars_changed:WP_Query:private] => [thumbnails_cached] => [stopwords:WP_Query:private] => [compat_fields:WP_Query:private] => Array ( [0] => query_vars_hash [1] => query_vars_changed ) [compat_methods:WP_Query:private] => Array ( [0] => init_query_flags [1] => parse_tax_query ) )