5242 – Power Amplifier

Product Description

The Model 5242 is a voltage-controlled power amplifier designed exclusively for Magtrol’s Model HD‑825 Hysteresis Dynamometer. Because of its double braking system, the HD‑825 requires more than 4 amps of power in order to reach full torque. The 5242 (which can provide up to 5 amps of output current) is necessary in order to amplify the power between the DSP7010 Controller (which has a maximum current output of 1 amp) and the HD-825 Dynamometer.

Specifications

Current Output 0 to 5 A DC
Control Input 0 to +3 V DC or 0 to -10 V DC
Fuses (5×20 mm) Brake: UL/CSA IEC 6.3A 5A 125 250 VSB VT
Power (120 V): UL/CSA 3A 250 VSB
Power (240 V): IEC 1.25A 250 VT
Power Requirements 330 VA
Voltage Requirements 120/240 V 60/50 Hz

Ordering Information

If the HD-825 is purchased without a dynamometer controller, please inform Magtrol of your controller model—as it may be necessary to modify your existing controller so that it functions properly with the 5242 Power Amplifier.

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                    [post_content] => Magtrol Models 5500 and 5501 are manually-operated switch boxes that permit the connection of up to three Magtrol Dynamometers to a single DSP7000 Dynamometer Controller. Use of the switch boxes facilitates quick and easy interfacing of multiple dynamometers without the necessity of disconnecting and reconnecting the brake and control cables. For Magtrol WB Eddy-current or PB Powder Brake Dynamometers, BOTH a 5500 AND a 5501 Switch Box are necessary. Magtrol HD or ED Hysteresis Dynamometers only require the 5500.
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                    [post_content] => Magtrol's FRS Free-Run Speed Sensor is used for accurate measurement of the free-run speed of any motor under test. The FRS Sensor is composed of 3 primary components:

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                    [post_content] => Finally… a Micro Dyne system designed specifically for your micro motors!

With over 50 years’ experience in dynamometer design and torque measurement, Magtrol has revolutionized the industry. Magtrol’s new Micro Dyne, capable of measuring extremely low torques (2.0 mN·m can be resolved to 0.0004 mN·m), is designed exclusively for testing miniature and micro motors.

For the utmost convenience, the Micro Dyne is packaged as a complete motor testing system. Everything that is needed to accurately and efficiently test miniature motors and micro motors is included with the purchase of a Magtrol Micro Dyne. The only component that needs to be supplied by the customer is a laptop or desktop personal computer and a motor power supply.
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                    [post_content] => DES 410 Series Power Supplies are specially designed for the full range of Magtrol’s Eddy-current and Powder brake dynamometers with the design goal providing the best response time. The DES 410 Series supplies are packaged in an industrial housing made of cast aluminum. This offers superior protection against radiated emissions in order to avoid any disruption of the surrounding electronics modules. This housing must be installed directly on the test bench, next to the brake, as close as possible.

The DES 410 Series supplies can be controlled by digital signals and analog set point coming from peripheral electronics. The DSP7010 Dynamometer Controller has been designed to work with the DES 410 Series.

Control

The Power supply can be switched ON by remote control. The STAND-BY signal enables the output current to be delivered. This excitation current is controlled by a set-point in the 0-10 V DC range. The nominal value of the excitation current is set by internal resistors. There are two discrete outputs for alarms (open collector). The first is the "Temperature Alarm". It will indicate if the cooling water of the Dynamometer or the inner temperature of the DES 410 Series are out of limits. The second is the "Electrical Alarm". It occurs when an over current or a short circuit is detected. The output current is immediately turned OFF and latched while the General Alarm Relay is set under its Alarm position. A low state for 200 ms of the Stand-by signal resets the latch. For applications with TANDEM dynanometers, the DES 410 Series units also control the power supply of the electromagnetic clutch.

Supply Voltage

The main supply voltage of the DES 410 Series is in the 115/230 VAC - 50/60 Hz range. No selection is required. The DES 410 power supply features a galvanic insulation between the main circuit and the dynamometer power. The DES 411 does not have galvanic separation. For safety reasons, the DES 410 Series case has to be grounded and the use of a ground fault current circuit breaker is recommended. [post_title] => DES 410 Series - Power Supply for Dynamometer Brakes [post_excerpt] => [post_status] => publish [comment_status] => open [ping_status] => closed [post_password] => [post_name] => des-series-power-supply [to_ping] => [pinged] => [post_modified] => 2025-12-17 15:56:26 [post_modified_gmt] => 2025-12-17 20:56:26 [post_content_filtered] => [post_parent] => 0 [guid] => https://www.magtrol.com/?post_type=product&p=675 [menu_order] => 64 [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] => 868 [post_author] => 1 [post_date] => 2017-04-06 16:52:28 [post_date_gmt] => 2017-04-06 16:52:28 [post_content] => Magtrol Models 5500 and 5501 are manually-operated switch boxes that permit the connection of up to three Magtrol Dynamometers to a single DSP7000 Dynamometer Controller. Use of the switch boxes facilitates quick and easy interfacing of multiple dynamometers without the necessity of disconnecting and reconnecting the brake and control cables. For Magtrol WB Eddy-current or PB Powder Brake Dynamometers, BOTH a 5500 AND a 5501 Switch Box are necessary. Magtrol HD or ED Hysteresis Dynamometers only require the 5500. [post_title] => 5500/5501 - Manual Dynamometer Switch Boxes [post_excerpt] => [post_status] => publish [comment_status] => open [ping_status] => closed [post_password] => [post_name] => 55005501-manual-dynamometer-switch-boxes [to_ping] => [pinged] => [post_modified] => 2024-10-16 09:36:42 [post_modified_gmt] => 2024-10-16 13:36:42 [post_content_filtered] => [post_parent] => 0 [guid] => https://www.magtrol.com/?post_type=product&p=868 [menu_order] => 7 [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] => 07d5362d5fe4c25d596ec1bb200449e7 [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 ) )