標準電機 -- SEW,Standard,TEST,Measuring Instruments,Telescopic Hot Stick,Test Lead,Mini Appliance Checker
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2120 ER

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  FEATURES
● Capable of measuring earth resistance and earth voltage.
● 2mA measuring current permits earth resistance to test without
    tripping earth leakage current breakers in the circuit.
● The leads are supplied as standard accessories for simplified
    two-wire measuring system.
● 0Ω adjustment.
● Battery operated.
● Data hold function.
● Battery test indication.
● Calibration performed with supplied test leads.
  SPECIFICATIONS
Measuring ranges   Earth resistance
    0-20Ω / 0-200Ω / 0-2000Ω
    Earth voltage
    0-200 Vac(40-500Hz)
Accuracy : Earth resistance ±(2%rdg+2dgt) or ±0.1
    Ω, which is greater
    Earth voltage ±(1%rdg+2dgt)
Earth resistance    
resolution : 0-20Ω : 0.01Ω
    0-200Ω : 0.1Ω
    0-2000Ω : 1Ω
Measuring system  : Earth Resistance by constant current
    inverter 820Hz approx. 2mA.
Display : 3½ digit(2000 counts)
0Ω adjustment :
Open circuit    
indication : LED will be unlit
Low battery    
indication : "   "symbol appears on the is play
Data hold    
indication : "    "symbol appears on the display
Over range    
Indication : “1”(MSD)
Dimensions : 210(L) × 210(W) × 100(D)mm
 Weight    
 (battery included) : Approx. 1395g
Power source : 1.5V(AA) × 8
Safety standard : EN 61010-1 CAT III 200V.
    IEC 61557-1 IEC 61557-5
    EN 61326-1
     
 


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