Resistance Standard Rack Modular 6634A better than 2 ppm

• Normal Ohms Resistance Range: 0.1 Ω to 100 MΩ in Single Decade Increments
• Low Ohms Resistance Range provides 1 mΩ to 0.1 Ω in Decade Steps
• Temperature Coefficient < ± 0.005 ppm/°C
• Stabilities Low as < 2 ppm/year
• Eliminates Oil Bath Requirements

• 6634A series is a modular series of Resistance Standards that can be rack mountable or simply set on a bench. The 6634A Series provides a set of up to 10 precision resistance standards enclosed in a temperature controlled and EMI protected chamber. For the Normal Ohms Configurations, there are 10 standard resistance values available covering the range of 0.1 Ω to 100 MΩ. Each resistance element is isolated and has 4-terminal connections on the rear panel. The resistance elements are maintained at approximately 30 °C in a temperature stabilized chamber. Each element is built with Guildline’s “true” multi-element design.

National Measurement Institutes, military, and calibration laboratories.

• 6634A (851K)