Standard Cell 51309 Weston Instruments Model 3 1.0194 Volt Abs Calibration Reference

This is a genuine Weston Instruments Model 3 laboratory primary calibration Voltage standard. It is used in many metrology labs all over the world. This Weston design is the workhorse of the industry. This is a single fluid voltaic cell, uses saturated solution of cadmium sulphate. The negative electrode is cadmium amalgams. The positive electrode is mercury. It keeps a stable absolute voltage which provides a constant 1.0194 Volt abs. at 20 C°. These calibration voltage standards are not to be used to supply any current. They are usually used within a Wheatstone bridge along with a potentiometer or similar instrument. Page is for reference only - Item is no longer available!

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REFERENCE PAGE - INFORMATION ONLY Features: • Weston Normal Cell Type 3 • MFG: Weston Instruments Company • Number: 51305 • Voltage: 1.0194 abs. • Calibration Standard Cell • Single Fluid Cell • Electrolyte: Saturated solution of Cd sulphate • Negative electrode: Cadmium amalgams • Positive electrode: Mercury • Terminals: Two fine wire • Size: 2.25 W x 3 H x 0.625 D [inches] • Weight: 66 [gram] • Original Weston - Made in USA Notes: • No longer Available • Data For Reference Only

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