The Model 648 is a bipolar, linear, 4-quadrant electromagnet power supply designed for high-precision laboratory use, delivering ±135 A and ±75 V with 9.1 kW nominal power. It features 1 mA current resolution and 1 mV voltage resolution, with built-in fault protection against short circuits, overcurrent, overvoltage, and thermal events. The supply uses water cooling with a minimum flow rate of 7.6 L/min and includes safety interlocks to ensure coolant flow during operation. It supports analog programming, IEEE-488.2, and USB interfaces, and is housed in a custom 19-inch rack cabinet measuring 559 mm W × 673 mm D × 1054 mm H, weighing 225 kg. It complies with CE mark low voltage (EN61010-1) and EMC (EN61326-1) standards.
The Model 648 electromagnet power supply is a robust, fault-tolerant 9 kW supply optimized for powering large 7 or 10 in research electromagnets. It is specifically designed for high precision laboratory use requiring extremely low electrical noise. The linear design removes undesirable higher frequency noise typical of switch mode power supplies. Eliminating the need for external switching or operator intervention to reverse current polarity, the Model 648 uses convenient bipolar, 4-quadrant operation. It is capable of supplying ±135 A/±75 V to a nominal 0.5 Ω, 0.5 H load. The Model 648 is built to last with a rugged design, integrated fault protection, and a simple, clean interior electronic design.
This robust power supply is developed to minimize downtime. It uses worry-free water cooling for quiet efficient operation compared to air-cooled power supplies. The seamless water lines only have external junctions, eliminating internal water leaks. In addition, safety interlocks ensure that cooling water is always flowing to the supply while operating. Magnet water can also be interlocked into the power supply if desired. Internal software controls manage water usage intelligently.
When combined with a Lake Shore EM7 7 in electromagnet and Model 475 DSP gaussmeter, the Model 648 forms a versatile electromagnet characterization system ideal for a wide range of user defined applications, including magneto-optical studies, magnetic hysteresis tests, susceptibility measurements, Hall effect studies, spin magnetic resonance demonstrations, and biological tests.
| Lake Shore Cryotronics, Inc. | |
|---|---|
| Product Category | Power Supplies |
| Product Number | Model 648 |
| Product Name | Electromagnet Power Supply |
| Type | DC Power Supply; Electromagnet Power Supply |
