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臺灣標(biāo)準(zhǔn)電機(jī)SEW儀器儀表--2120 ER Earth Resistance Testers 3 Wire Digital

  
  
  

    

                      
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                                                  2120 ER   Earth Resistance Testers
                                                    
                                                    
                                                    
      3 Wire (Digital)
                                                     
                                                          
                                                        		
                                                
      
                                                
      
                                                  2120 ER
                                                
      
                                              
      
                                                  		
                                            
                                              
      
                                                
                                                
      
                                                  
                                                     FEATURES
                                                
      
                                                
      
                                                   
                                                
      
                                                
                                                
                                                
      
                                                   Capable of measuring earth voltage.
                                                
      
                                                
                                                
                                                
      
                                                   2mA measuring current permits eath resistance to test without tripping earth leakage current breakers in the circuit.
                                                
      
                                                
                                                
                                                
      
                                                   Test leads are supplied as standard accessories for simplified two-wire measuring system.
                                                
      
                                                
                                                
                                                
      
                                                   0 Ohm adjustment.
                                                
      
                                                
                                                
                                                
      
                                                   Data hold function.
                                                
      
                                                
                                                
                                                
      
                                                   Battery operated.
                                                
      
                                                
                                                
                                                
      
                                                   Battery life indicator.
                                                
      
                                                
                                                
                                                
      
                                                   Designed to meet ,CAT III 200V.
                                                
      
                                                
                                                
                                                
      
                                                   Calibration performed with supplied test leads.
                                                
      
                                                
                                                
                                                
                                              
      
                                                  		
                                          
      
                                          
      
                                            
                                              
      
                                                
                                              
      
                                                  		
                                          
      

                                          
      
                                            
                                              
      
                                                
                                                
      
                                                   SPECIFICATIONS
                                                  
                                                
      
                                                
      
                                                   
                                                
      
                                                
                                                
                                                
      
                                                  Measuring Ranges
                                                  Earth Resistance : 0-20 Ohm/0-200 Ohm/0-2000 Ohm
                                                
      
                                                
                                                
                                                
      
                                                   
                                                  Earth Voltage : 0-200V AC (40-500Hz)
                                                
      
                                                
                                                
                                                
      
                                                  Accuracy
                                                  Earth Resistance : +/- (2%rdg+2dgt) or +/- 0.1 Ohm, which is greater
                                                
      
                                                
                                                
                                                
      
                                                   
                                                  Earth Voltage : +/- (1%rdg+2dgt)
                                                
      
                                                
                                                
                                                
      
                                                  Earth Resistance Resolution
                                                  0-20 Ohm (0.01 Ohm)
                                                
      
                                                
                                                
                                                
      
                                                   
                                                  0-200 Ohm (0.1 Ohm)
                                                
      
                                                
                                                
                                                
      
                                                   
                                                  0-2000 Ohm (1 Ohm)
                                                
      
                                                
                                                
                                                
      
                                                  Measuring System
                                                  Earth Resistance by constant current inverter 820 Hz approx. 2mA
                                                
      
                                                
                                                
                                                
      
                                                  Low Battery Indication
                                                  symbol appears on the diaplay
                                                
      
                                                
                                                
                                                
      
                                                  Data Hold Indication
                                                  symbol appears on the display
                                                
      
                                                
                                                
                                                
      
                                                  Over Range Indication
                                                  "1" (MSD)
                                                
      
                                                
                                                
                                                
      
                                                  Open Circuit Indication
                                                  LED will be unlit
                                                
      
                                                
                                                
                                                
      
                                                  Display LCD
                                                  LCD 3-1/2 digit (2000 counts)
                                                
      
                                                
                                                
                                                
      
                                                  Power Source
                                                  1.5V SUM-3 (AA)  x 8 or equivalent
                                                
      
                                                
                                                
                                                
      
                                                  Dimensions
                                                  210(L) x 210(W) x 100(D) mm
                                                
      
                                                
                                                
                                                
      
                                                  Weight
                                                  Approx. 1395g (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
  
      
  
      
    ● 供量測接地電阻(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。
      
      ● 可作三線式或兩線式量測。
      
      ● 接線正確，在量測接地電阻時，紅燈(LED)會作顯示。
      
      ●   有0Ω歸零設(shè)計。
      
      ● 數(shù)值鎖定功能。
      
      ● 電源不足顯示。
      
      ● 請使用提供的測試線量測。
      
      ● 符合 CAT   III 200V
      
            		
  
      
  
      
    
  
      
  
      
     規(guī) 格   (23°C±5°C ＜80%R.H.)
  
      
  
      
    
      
      
        
          
      
            
      
              
                
                
                
                  
      
                    量測檔位
                    接地電阻 : 0-20Ω/0-200Ω/0-2000Ω
      
                      接地電壓 : 0-200V AC      		
                  
      
                  
      
                    準(zhǔn)確度
                    接地電阻 : ±(2%讀值+2位數(shù))
      
                      接地電壓 : ±(1%讀值+2位數(shù))      		
                  
      
                  
      
                    接地電阻解析度
                    0-20Ω : 0.01Ω 
      
                      0-200Ω : 0.1Ω 
      
                      0-2000Ω : 1Ω      		
                  
      
                  
      
                    量測系列
                    820Hz   2mA定電流
                  
      
                  
      
                    顯示器
                    液晶顯示器(LCD)3位 Z大顯示1999
                  
      
                  
      
                    接線正確並作量測
                    紅燈(LED)會亮著
                  
      
                  
      
                    電量不足指示
                    LCD   上出現(xiàn) :符號
                  
      
                  
      
                    數(shù)值鎖定指示
                    LCD 上出現(xiàn) :符號
                  
      
                  
      
                    過載指示
                    LCD   上出現(xiàn) : 1
                  
      
                  
      
                    外形尺寸
                    210(長)×210(寬)×100(高)mm
                  
      
                  
      
                    重量
                    約1395克(含電池)
                  
      
                  
      
                    使用電池
                    1.5V (AA)×8(顆)