臺灣標(biāo)準(zhǔn)電機SEW儀器儀表--2811 LP Loop Testers
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                                                  2811 LP   Loop Testers
                                                    
                                                  
                                                
    
                                                
    
                                                  2811 LP
                                                
    
                                              
    
                                                		
                                            
                                              
    
                                                
                                                
    
                                                  
                                                     FEATURES
                                                
    
                                                
    
                                                   
                                                
    
                                                
                                                
                                                
    
                                                   Displays mains voltage, scroll through menus.
                                                
    
                                                
                                                
                                                
    
                                                   Checks wiring integrity (LEDs and dispaly).
                                                
    
                                                
                                                
                                                
    
                                                   Single button operation.
                                                
    
                                                
                                                
                                                
    
                                                   Auto-off/auto-ranging.
                                                
    
                                                
                                                
                                                
    
                                                   Microprocessor controlled.
                                                
    
                                                
                                                
                                                
    
                                                   Combined prospective short circuit current, PSC and LOOP tester.
                                                
    
                                                
                                                
                                                
    
                                                   Built-in carry case, test leads in separate pouch.
                                                
    
                                                
                                                
                                                
    
                                                   Loop test for L-E and L-N and PSC.
                                                
    
                                                
                                                
                                                
    
                                                   Voltage test L-N and L-E.
                                                
    
                                                
                                                
                                                
    
                                                   Enables analysis of constituent components in L-E and L-N loops giving resistance of earth, neutral wire, live wire and transformer winding.
                                                
    
                                                
                                                
                                                
    
                                                   60 Hz available.
                                                
    
                                                
                                                
                                                
    
                                                   Display can be customized for special orders.
                                                
    
                                                
                                                
                                                
    
                                                   60 Hz available on request.
                                                
    
                                                
                                                
                                                
    
                                                    CAT II 250V.
                                                
    
                                                
                                                
                                                
                                              
    
                                                		
                                          
    
                                          
    
                                            
                                              
    
                                                
                                              
    
                                                		
                                          
    

                                          
    
                                            
                                              
    
                                                
                                                
    
                                                   SPECIFICATIONS
                                                  
                                                
    
                                                
    
                                                   
                                                
    
                                                
                                                
                                                
    
                                                  Loop Impedance Range L-E, L-N
                                                  20/200/2000 Ohm (Auto-Range)
                                                
    
                                                
                                                
                                                
    
                                                  Loop Impedance Test Current
                                                  12A at 230V/50Hz
                                                
    
                                                
                                                
                                                
    
                                                  Voltage Measurement L-N, L-E
                                                  80 to 250V AC/50Hz
                                                
    
                                                
                                                
                                                
    
                                                  Earth Wire/Path Return Resistance
                                                  20/200/2000 Ohm (Auto-Range)
                                                
    
                                                
                                                
                                                
    
                                                  Neutral Wire Return Resistance
                                                  20/200/2000 Ohm (Auto-Range)
                                                
    
                                                
                                                
                                                
    
                                                  Line Wire Return Resistance & Transformer Windings
                                                  20/200/2000 Ohm (Auto-Range)
                                                
    
                                                
                                                
                                                
    
                                                  PSC Current (L-N) Max
                                                  3kA
                                                
    
                                                
                                                
                                                
    
                                                  Operating Voltage
                                                  230V +/- 20%Hz
                                                
    
                                                
                                                
                                                
    
                                                  TYPICAL ACCURACY
                                                  
                                                
    
                                                
                                                
                                                
    
                                                  Loop Impedance
                                                  +/- 5%rdg+/-2dgt
                                                
    
                                                
                                                
                                                
    
                                                  PSC Current
                                                  +/- 20%rdg+/-5dgt
                                                
    
                                                
                                                
                                                
    
                                                  Voltage
                                                  +/- 1%rdg+/-1dgt
                                                
    
                                                
                                                
                                                
    
                                                  Operating-Temperature-Humidity
                                                  -10 degree C to +40 degree C 80% max. relative humidity
                                                
    
                                                
                                                
                                                
    
                                                  Dimensions
                                                  170(L) x 120(W) x 95(D)mm
                                                
    
                                                
                                                
                                                
    
                                                  Weight
                                                  Appox. 780g (battery is included)
                                                
    
                                                
                                                
                                                
    
                                                  Power Source
                                                  1.5V (AA) x 8 batteries
                                                
    
                                                
                                                
                                                
    
                                                  Accessories
                                                  Test leads
                                                
    
                                                
                                                
                                                
    
                                                   
                                                  Shoulder belt
                                                
    
                                                
                                                
                                                
    
                                                   
                                                  Instruction manual
                                                
    
                                                
                                                
                                                
    
                                                   
                                                  Batteries