夹类Earthing抵抗米

Use: Widely used in testing earth resistance of power, telecommunications, meteorology, oilfield, building industry and industry electric devices. When testing earthing system with loop, no need to cut down earth down lead and auxiliary electrode, faster and more convenient. It measures earthing breakdown that is not available for traditional way, for this tester measures synthesize value of earth body resistance and earthing down lead resistance. It applies in environment of (cement ground, inside building, inside basement, telecommunications machine room,…), which in unavailable for tradition megameter. Power system earthing: electricity transmission pole and tower earthing, transformer neutral point earthing Telecommunications system earthing: telecommunication and cable screening earthing, launch shelf earthing and machine room. Buildings earthing: warehouse, factory building and elevator earthing Gas station, oil depository, lightning arrester needle earthing Loop connection resistance test 1.fit for kinds of shapes earthing leads( 2.non-contacting measuring earthing resistance, safe and fast. 3. no need of using auxiliary earting rod, 4. double protecting insulation 5.strong interference resistance, high precision 6.No.5 Alkaline batteries 6.3 technique specification: Display screen: four LCD digits displays Working temperature: -10°C 55°C Working humidity: relative humidity 10% 90% Protection class: double insolation structure: clamp style Explosion prevention symbol: Exia II BT3 Power supply: four batteries of No. 5 Alkaline battery ( 6V) Size of clamp mouth: 28mm Weight( containing battery): 1160g Dimension: L 285mm, W 85mm, thickness 56mm Range limit and accuracy: Measuring model range resolution accuracy resistance 0.010 - 0.099 ohm 0.001 ohm ± (1%+0.01 ohm) 0.10 - 0.99 ohm 0.01 ohm ± (1%+0.01 ohm) 1.0 - 49.9 ohm 0.1 ohm ± (1%+0.1 ohm) 50.0 - 99.9 ohm 0.5 ohm ± (1.5%+0.5 ohm) 100 - 199 ohm 1 ohm ± (2%+1 ohm) 200 - 395 ohm 5 ohm ± (5%+5 ohm) 400 -590 ohm 10 ohm ± (10%+10 ohm) 600 - 1000 ohm 20 ohm ± (20%+20 ohm)