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Portable Wheatstone Bridge This test set has been designed to provide an accurate and sensitive instrument for measurement of resistance and locating faults in cables by adopting the Murry or Valley loop circuit for tests. This set is entirely contained with a dry battery and a galvanometer. The instrument is equipped with another switch controlling the sensitivity or short circulating the galvanometer. Arrangement has been provided to use the extra galvanometer or the high source voltage for increasing the sensitivity of the bridge. All the coins are calibrated on Imported Testing Bridge range : 0.001 ohms to 11.11 megaohms.Accuracy ± 0.1%.
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