A h controls earth bond tester is designed to check the impedance of protective bonding [earth bond] of electrical equipment. It is having four wire technique to measure impedance of the earthing system in the equipment under test. The four wire measuring technique eliminates the resistance of the test leads and hence gives more accurate results. The ahc earth bond tester is micro-controller based test equipment, which indicates voltage, current and calculated impedance on a 16x2 alpha numeric jumbo lcd display. The equipment is enclosed in a cold rolled mild steel cabinet coated with hard epoxy paint to give a long lasting finish. The model ahcebt-3015 gives an output of 15v and 30 a maximum. Specifications: output current - 30 a ac maximum; output voltage - 15v ac variable; and impedance varies as per current and voltage [10 ohm maximum]. Probes - four probes [clip type] are supplied with the equipment two for the current and two for the voltage measurement. Two double wire probes also available for fast measurement of impedance, which can also be supplied on request.
