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    1. 台湾标准电机SEW仪器仪表--2105 ER Earth Resistance Testers 3 Wire Analog
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        2105 ER   Earth Resistance Testers
        3 Wire (Analog)  
        2105 ER
         Capable of measuring earth voltage.
         2mA measuring current permits earth resistance tests with tripping earth leakage current breakers in the circuit under test.
         Test leads are supplied as standard accessories for simplified two-wire measuring system.
         Battery operated.
         Battery life indication.
         Designed to meet CAT III 30V.
         Calibration performed with supplied test leads.
        Measuring Ranges Earth Resistance : 0-12 Ohm/0-120 Ohm/0-1200 Ohm
        Earth Voltage : 0-30V AC (40-500Hz)
        Accuracy Earth Resistance : +/- 3% of full scale
        Earth Voltage : +/- 2.5% of full scale
        Measuring System Earth resistance by constant current inverter (Square Signal) 820 Hz approx. 2mA
        Power Source 1.5 V SUM-3 (R6P) x 8 or equivalent
        Dimensions 210(L) x 210(W) x 100(D) mm
        Weight Approx. 1370g (battery included)
        Accessories Test leads (AL-36 : red-15m, yellow-10m, green-5m)
        Auxiliary earth spikes
        Shoulder belt
        Instruction manual
        特 點
        ● 吊線式高品質防震錶頭。
        ● 可量測接地電阻(Ω)和接地電壓(ACV)。
        ● 量測電流僅有2mA,不會影響漏電斷路器的跳脫。
        ● 可作三線式量測或兩線式量測。
        ● 電池電量指示。
        ● 使用電池操作。
        ● 請使用提供的測試線測試
        ● 通過歐洲安全規範驗證:
        EN 61010-1 CAT III 150V
        規 格 (23°C±5°C <80%R.H.)
        量測檔位 接地電阻 : 0-12Ω / 0-120Ω / 0-1200Ω
        接地電壓 : 0-30V AC(40-500Hz)
        準確度 接地電阻 : ±3%滿刻度
        接地電壓 : ±2.5%滿刻度
        量測系列 820Hz 2mA定電流
        接線正確(量測接地電阻) 紅燈(LED)會亮著
        外形尺寸 210(長)×210(寬)×100(高)mm
        重量 約1370公克(含電池)
        使用電池 1.5V(AA)×8(顆)
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