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The Model 642 electromagnet power supply is a linear, bipolar current source providing true 4-quadrant output, eliminating the need for external switching or operator intervention to reverse current polarity. The Model 642 is capable of supplying ±70 A/±35 V to a nominal 0.5 W, 0.5 H load, and the output can be modulated from an external source to frequencies up to 0.17 Hz at ±70 A. Internally programmed output provides 20-bit resolution, while externally programmed output provides unlimited resolution. |
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The compact, low noise design of the Model 642 makes it the ideal supply for use in laboratory settings. When combined with a Lake Shore EM4 4-inch electromagnet and Model 475 DSP gaussmeter, the Model 642 provides a versatile field control system ideal for a wide range of user defined applications. These include but are not limited to magneto-optical, magnetic hysteresis and susceptibility, and Hall effect measurements, as well as in-line annealing |
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Bipolar, linear, true 4-quadrant output
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±70 A/±35 V, 2.5 kW
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Can be modulated to frequencies up to 0.17 Hz
at ±70 A -
Low noise
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0.1 mA of programmed current resolution
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Analog programming and IEEE-488 and RS-232C interfaces
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Built-in fault protection
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Compact design
