GFM-300AC High Current Laboratory/Engineering Testers

The GFM-300A is designed for testing where very high currents are needed to judge connection resistance. The front panel allows adjustment of the AC current up to 300 amps. The dual meter front panel simultaneously displays both current through and voltage across the grounding circuit of the unit under test. This tester is packaged in a 3Ux17" enclosure, not as shown.

Provided with leads and calibration certificate.

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The GFM-300 AC is designed for testing where very high currents are needed to judge connection resistance.

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Option: None

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AC output - constant current delivers up to 300 amps at up to 3.5 volts for ground resistance measurements of up to 11 milliohms. Current is adjustable from the front panel.

Analog meters indicates output current and voltage. Meter accuracy ±3% FS.

Four wire voltage measurement reads the voltage drop at the load connection point for accuracy.

Rear panel outputs for safety. Leads are 4 feet long; non-detachable

Included circuit breaker protects tester and load from excessive current. Circuit breaker/Power Switch is resettable from the front panel.

Test leads included. Calibrated to NIST Standards (MIL-STD-45662-A) with Certificate.

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