A clamp meter measures the vector sum of the currents flowing in all the conductors passing through the probe, which depends on the phase relationship of the currents. Only one conductor is normally passed through the probe. In particular if the clamp is closed around a two-conductor cable carrying power to equipment, the same current flows down one conductor and up the other, the meter correctly reads a net current of zero. As electrical cables for equipment have both insulated conductors (and possibly an earth wire) bonded together, clamp meters are often used with what is essentially a short extension cord with the two conductors separated, so that the clamp can be placed around only one conductor of this extension. It is simple to measure very high currents (hundreds of amperes) with the appropriate current transformer. Specifications: Measuring range: AC Current: 0-200A-1000A DC Voltage range: 0-1000V AC Voltage range: 0-750V Ac current: 0.1A to 1000A Insulation Test 100KQ to 2000MQ (With option 500V insulation tester unit) Resistance Measurement: 200 Ohm-20K Ohm range CONTINUITY TEST: When the resistance is below 50Ohm±25Ohm, the built -in buzzer will sound
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