Digital Insulation Tester Dealers in Kishan Ganj, Delhi (2 products available)

This is a compact, portable self-contained Instrument which is used for direct reading of insulation resistance of electrical installations and apparatus. The Insulation tester is composed of a hand driven A.C. generator and a high sensitivity cross-coil Indicator. The indicating movement is of the cross coil ratio type and is designed so that voltage fluctuation, caused by irregular cranking have no influence on the results of measurement. The AC Magnet hand generator drive is extremely smooth and silent. There are no carbon brushes and commutators, to be replaced as in DC generators. The quick response saves the time and extend the life of the generator. Available in various ranges from 10 to 500 Mega Ohms.

Insulation Tester (Meggers) Transistorised     These have been designed with a view of stronger and rugged construction of individual components, which have been tested by us for last so many years, and thus ensuring longer life of the instrument. The size and weight of this model has been considerably reduced with a view of making the instrument more handy. The indicating Instrument is specially protected seperately in a moulded case to prevent damages from dust at the time of servicing. The indicating instrument has knife edge pointer and Anti-parallax mirror scale for ensuring accurate readings. Single person operation push button control, no troublesome cranks to turn, usage of standard 1.5 volts pencil cells are all the special features.ACCURACY : (+/-)5% of indicated value. WORKING PRINCIPLE : A push pull oscillator is used to convert DC voltage to AC, which is stepped up and further rectified to give the test voltage which is DC. A sensitive movement is used to detect the change in current due to insertion of resistance in the circuit. Available in various ranges from 10 to 500 Mega Ohms.