Magnetreater®/Charger Model 580

Features

• Combination Magnetizer & Treater (Demagnetizer)
  Unidirectional Magnetizing, Damped Wave/Ringing Pulse Demagnetizing
• Capable of Processing Alnico and Barium Ferrite Magnets and Assemblies
• Complete Magnet Processing in One Fixture
• Pulse Rate and Amplitude Controls
• Single or Continuous Demagnetizing Pulses
• Standard and Custom Fixtures Available for Specific Applications
• Rack Mount Configuration

The Model 580 combines a high efficiency, impulse type magnetizer with a stored energy, damped wave type demagnetizer resulting in a compact magnet processing instrument for use in the engineering lab or on the production line. Permanent magnets and magnet assemblies containing Alnico or Barium Ferrite materials can be magnetized and demagnetized to a desired level of flux density. Two separate capacitor banks, each containing computer grade electrolytic capacitors are used in this unit. The applied emf in each bank is controlled by separate front panel controls. The charging voltage is adjustable in six steps and monitored by a front panel meter. A fine and coarse control adjustment on the demagnetizer output provides a resolution of better than 0.1%.

The Model 580 provides a solid state design coupled with SCR output control to provide a low maintenance, high efficiency system. The charging voltage level, monitored by a front panel meter, is adjustable up to 650 VDC by means of a six position switch. The charge pulse is a unidirectional pulse with the pulse width, amplitude and waveshape determined by the impedance and inductance of the magnetizing/demagnetizing fixtures. Safety interlocking is provided to insure a high level of operator safety. The demagnetizing section utilizes the damped wave principle employed in the 990 Series Magnetreaters®. This enables a high level of demagnetizing energy to be obtained with low power line demand and virtually no effects from self-heating in the treating fixtures. Control of demagnetizing effects to tenths of a percent are possible through the use of continuously variable pulse amplitude controls. The demagnetizing pulse may be utilized in a one-shot or continuous mode at the operators discretion. In the continuous mode, the pulse rate can be adjusted from 10 to 200 treat pulses per minute, depending on the setting of the pulse rate control and the amplitude control setting.

A single AN/Type output connector for both charging and treating allows one fixture to be used for both purposes and eliminates the need to move the magnet or magnet assembly from one fixture to another.

The standard rack mount brackets incorporated on the front panel of   the 580 enclosure allow for both bench mount use and easy installation in standard 19" rack mount electronic enclosures.

Specifications

Energy Level & Capacitor Recharge Times:
Magnetizer Section:

Typical Peak Magnetizing Forces and Pulse Characteristics:
Peak H will depend upon the impedance of the charging fixture. A peak magnetizing force of approximately 8,000 Oersteds can be achieved using an HD-31620 wire wound fixture. The Model 580 produces a sinusoidal half-wave pulse. Pulse shape and length will depend on the impedance of the fixture used with this unit. A typical pulse with the Model 31620 wire wound fixture will have a rise time of two ms to the peak and an overall pulse length of 30 ms.
* Actual cycle times may vary depending on fixture cooling requirements and input line voltage.

Magnetreater® Section:
Energy Level: Continuously variable up to 52 Watt-seconds.
Pulse Repetition Rate: Single shot or continuous from 10 to 200 pulses per minute by way of front panel control.
Power Requirements: 115 or 230 VAC 50/60Hz
(Please specify at time of order) 115 VAC   3 Amps Average/230 VAC   1.5 Amps Average

Specifications subject to change without notice.

Contact our factory for additional information.
Magnetic Instrumentation Inc., 8431 Castlewood Dr., Indianapolis, IN 46250-1534
E-mail: maginst@maginst.com, Tel. 317-842-7500, Fax 317-849-7600