If field reversal is required when using a a unipolar Power Supply, we offer the 5971-160 Current Reversal Switch. This Switch provides a safe way of reversing the magnets current under either manual or computer control. The built-in USB Interface also provides control fo the Power Supply current, and read back of the Power Supply current and voltage. It will also provide field read back from a Senis Field Transducer if installed.
A complete system typically consists of an appropriate SGA series DC power supply, the GMW 5971-160 Reversal Switch, a Senis magnetic field transducer, an electromagnet and an appropriate computer and software or an external analog programming signal.