Callender & Griffith'S Bridge (New Type)

Callender & Griffith's Bridge is used to measure the resistance of platinum resistance Thermometer. The instrument consist of following buitin parts. Rotary Dial: A rotary dial of x1 ohms is provided on the panel. Circular Scale: A circular slide wire of total resistance 1 Ohm is provided on the panel having a scale with centre zero divided into 50 equal divisions both side from zero.