AEMC 4500 User Manual
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Contents
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10 Digital Ground Resistance Tester Model 4500Charging Time: 14 hours typicalCharging Supply Voltage: Internally selectable 110/220V, 45 to 450HzLow Battery Indication: Battery can be recharged with built-in dual volt-age charging unit: 94 to 127V or 187 to 253V (47 to 450Hz).WARNING: Do not fully discharge batteries.Fuse Protection: 250Vrms (measurement circuit) via 3.15A 250V fuse3.2 AccuracyRange Resolution TestCurrentAccuracyin % ofReading* Maximum Value ofY and Z ElectrodesHaving Influence < 1%Ry Rz2Ω2 mA± 5mΩ ± 1ct± 2% ± 1ct± 2% ± 1ctof 10% to 100%of full scale5kΩ10kΩ± 2% ± 30mΩ ± 1ct± 2% ± 3mΩ ± 1ct0 to0.2Ω0.2Ωto 2Ω1mΩ1mΩ10mΩ0.1Ω1Ω10Ω20kΩ2kΩ200Ω20Ω600Ωto 20kΩto beselectedin relationto the testcurrent10mA50mA2mA10mA50mA2mA10mA50mA2mA10mA50mA2mA10mA50mA*2mA*10mA*50mA*No accuracy specification - do not use* See Table III for maximum auxiliary resistance5kΩ5kΩ |
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