UNI-T UT501A 1000V Измеритель сопротивления заземления изоляции меггер Авто Диапазон ом

UNI-T UT523A Smart Earth Resistance Soil Resistivity Tester CE Voltage Meter

 

Please note :Battery is not included (C type battery 6pcs)

 

Basic Functions Range Best Accuracy Model 　  UT523A Earth resistance 0.00Ω～19.99Ω ±(2%+5) 20.0Ω～199.9Ω ±(2%+5) 200Ω～1999Ω ±(2%+5) 2.00kΩ～19.99kΩ ±(2%+5) 20.0kΩ～210.0kΩ ±(2%+5) Soil resistivity 0.00Ωm～99.99Ωm Decided by measuring precision of R: (ρ=2πaR  a:1 m～100m, π=3.141) 100.0Ωm～999.9Ωm 1000Ωm～9999Ωm 10.00kΩm～99.99kΩm 100.0kΩm～999.9kΩm 1000kΩm～9000kΩm Earth voltage AC 0.00～750V ±(2%+5) Testing resistance 128Hz/111Hz/105Hz/94Hz(AFC) √ Features Measuring method Earth resistance: rated current pole changing method with Max 20mA measuring current; √ soil resistivity: quadrupole method (Wen-Na method ); earth voltage: average rectifier (between P(S) and ES interfaces) Short-circuit testing current AC 30mA max √ Open-circuit testing voltage AC 40V max √ Auto range 　  √ Distance between electrodes 1m～200m can be set. √ Testing voltage waveform Sine wave √ Line voltage Measure when the voltage is below 750V AC   √ Low battery indicator ≤7.5V √ Data hold 　  √ Alarm function 　  √ RS232 interface 　  √ Withstand voltage AC 3700V/rms(between circuit and case) √ LCD backlight 　  √ Data storage 300 groups √ Auxiliary earth resistance test 0.00KΩ～30kΩ(100R+rC<50kΩ, 100R+rP<50kΩ) √ Overload protection Earth resistance measurement: input 280V AC between C(H) and E, P(S) and ES for 3s √ Interference test Auto identify interference signals, when interference voltage is higher than 5V, the symbole NOISE is displayed. √ Measuring time(s) More than 5000 times (perform short circuit test once, and again after 30s) √ Insulation resistance Above 20MΩ (500V between circuit and case) √ General Characteristics Power supply DC 9V (6 Zinc-manganese dry batteries, R14S 1.5V; can continuously standby for 300hrs) LCD size 128mm×75mm Product color Red and grey Product weight 1443g (including batteries) Product size 215mm×190mm×95mm Standard accessories Standard test lead, simple test lead, batteries, PC software CD, RS232 interface cable Standard Individual Packing Tool box, gift box, English manual, warranty card