METRAOHM 413 Low-Resistance Ohmmeter - GMC Instruments - #1

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3-348-810-03 4/1.07 GMC-I Gossen-Metrawatt GmbH METRAOHM.413 Low-Resistance Ohmmeter Applications The METRAOHM.413 is a battery powered instrument for the measurement of low-value resistances in electrical systems. Large protective conductor, earthing, equipotential bonding and lightning protection systems can also be tested quickly and safely with the METRAOHM.413. Resistance is measured between reference earth (e.g. an equipotential bonding strip) and any desired points to this end. A measuring current of 200 mA and automatic functions assure reliable measuring results. – Adjustment of shunts in instrumentation applications – Testing of electrical connections at busbars in open-pit mining, in industry and in household applications – Testing of cable resistance, wiring, shunt resistors in printed circuit boards and thick-film circuits – Measurement of contact resistance in relays, power contactors and load interrupters – Measurement of fuse resistance, as well as cable resistance in heavy current circuits – Testing of coil resistance in transformers, coils, small motors etc. Description Easy Operation Operation is very easy. Measurement cables of almost any length can be used thanks to the offset balancing function. Measurement polarity can be reversed, and both measured values are stored to memory for subsequent comparison. Resultant deviations in the measuring results (e.g. possible galvanic voltages) can thus be recognized. Offset Balancing Offset balancing compensates for measurement cable resistance. The offset value is saved to memory and is utilized for all future measurements until balancing is performed once again. The value remains in memory, even after the measuring instrument has been switched off. A variety of measurement cables with resistances of up to 3.5 Ù can be used. Protection Against Operator Error The METRAOHM.413 is protected against inadvertent connection to devices under test with fault voltages of up to 500 V by means of protective devices. Interference Voltage Warning Interference voltage is indicated visually with a red LED, and audibly with an acoustic warning signal. The voltage value is displayed at the LCD as well, as long as the test probe makes contact. • Handy measuring instrument per VDE 0413 part 4 / EN 61557-1 / -4 • Large measuring range from 0.01 to 1999 kÙ • Measurement cable zero balancing • Compact and durable For rugged service calls and laboratory use • Overvoltage protection Protects the instrument in the event of inadvertent connection to mains voltage • Indication of interference voltage • IP 65 protection