Description
The Model 1500A Magnet Charger is designed to magnetize a wide variety of magnetic materials from low coercivity tungsten steels to high energy barium ferrite. The energy storage principle used permits generation of high energy magnetizing pulses with relatively low input power demand. The charging transformer in the Model 1500A used with the proper fixture enables the charging of magnets in many complex configurations. A maximum current of 40,000 Amps can be developed in the secondary of the transformer with an emf of only a few millivolts, which assures operator safety. A flux reset circuit and a shunt diode prevent reverse polarity of the charging pulse when using pulse transformer fixtures. Wire wound fixtures may be used with the Model 1500A when straight line magnetizing forces are required, or when maximum energy is required for charging a multipole assembly. Such fixtures are connected through a safety interlocked plug-in unit. Special fixtures are available for processing D’Arsonval meters, accelerometers, tachometer generators, and similar structures. A front panel switch allows energy storage levels of either 56 or 225 watt-seconds to be selected. The short recharge time of the Model 1500A allows use in high speed production applications.

Specifications

Energy Storage: Either 56 or 225 watt-seconds, as selected by a front panel switch. A 200 uF storage capacitor is used.

Charging Fixture:
One Type A-2 Charging Bar is supplied. Other bars and wire wound fixtures are available.

Peak Magnetizing Forces:
With the energy selector in its high position:
(a)With A-2 Charging Bar, Peak H = 9500 Oersteds
¼" x ½" x 3" (.63 x 1.27 x 7.62 cm)

(b)With I Bar, Peak H = 11000 Oersteds
½" x ½" x 1 ½" (1.27 x 1.27 x 3.8 cm)

(c)A peak magnetizing force of 7000 Oersteds is developed in the Accessory 6180 wire-wound fixture. 3 ½" (8.89 cm) ID x 2" (5.08 cm) deep

Magnetizing Force:
The pulse is a half cycle sinusoid. Rise time to peak is approximately 1 ms. Pulse length is approximately 3 ms.

Recharge Time:
High energy position: 5 seconds, approximately
Low energy position: 2 seconds, approximately

Power Requirements:
120 VAC Operation: 50/60 Hz; 2 Amps average, 5 Amps peak
240 VAC Operation: 50/60 Hz; 1 Amp average, 2.5 Amps peak, requires use of external stepdown transformer (Order Number: 08007064)

Dimensions:
Height: 15 in (38.1 cm)
Width: 11 in (27.9 cm)
Depth: 20 in (50.8 cm)
Weight: Net 125 lb (56.8 kg)

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