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

        
     
    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)