臺(tái)灣標(biāo)準(zhǔn)電機(jī)SEW儀器儀表--4105 ER Earth Resistance Testers 3 Wire Analog

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        4105 ER   Earth Resistance Testers
        3 Wire (Analog)  
        4105 ER
        FEATURES
         
         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 life indicator.
         Battery operated.
         Lamp for the scale's panel. (atuo shut-off in 10 seconds)
         CAT III 300V.
        SPECIFICATIONS
         
        Measuring Ranges Earth Resistance : 0-12 Ohm/0-120 Ohm/0-1200 Ohm
        Earth Voltage : 0-30V AC (40-500Hz)
        Accuracy Earth Resistance : +/- (2.5% + 1mm)
        Earth Voltage : +/- (2.5% + 1mm)
        Measuring System Earth resistance by constant current inverter 820 Hz approx. 2mA
        Open Circuit Indication LED unit
        Power Source 1.5 V SUM-3 (AA) x 8 batteries or equivalent
        Dimensions 250(L) x 190(W) x 110(D) mm
        Weight Approx. 1500g (battery included)
        Accessories Test leads (AL-36 : red-15m, yellow-10m, green-5m)
        Simplified measurement probe
        Auxiliary earth spikes
        Shoulder belt
        Instruction manual
        batteries
        特 點(diǎn)
        ● 吊線式高品質(zhì)防震表頭。
        ● 可量測(cè)接地電阻(Ω)和接地電壓(ACV)。
        ● 量測(cè)電流僅有2mA,不會(huì)影響漏電斷路器的跳脫。
        ● 可作三線式量測(cè)或兩線式量測(cè)。
        ● 電池電量指示。
        ● 使用電池操作。
        ● 使用提供的測(cè)試線測(cè)試。
        ● :
        CAT III 30V
        規(guī) 格 (23°C±5°C <80%R.H.)
        量測(cè)檔位 接地電阻 : 0-12Ω / 0-120Ω / 0-1200Ω
        接地電壓 : 0-30V AC(40-500Hz)
        準(zhǔn)確度 接地電阻 : ±3%滿刻度
        接地電壓 : ±2.5%滿刻度
        量測(cè)系統(tǒng) 820Hz 2mA 定電流
        接線正確(量測(cè)接地電阻) 紅燈(LED)會(huì)亮著
        外形尺寸 250(長(zhǎng))×190(寬)×110(高)mm
        重量 約1500克(含電池)
        使用電池 1.5V(AA)×8(顆)