SEW 6221 EL ELCB Testers漏电断路器检测计

Determination of the Phase  Presence:        
  Nominal Voltage for Phase Presence Indication (the voltage required for the neon lamps L1, L2, L3 to lit up): From 100Vac to 450Vac.
  Frequency Range: From 10Hz to 400Hz.
Determination of the Phases Rotary Field Direction:    
  Direction (the voltage required to have the direction LEDs L1-L2-L3 or L2-L1-L3 to indicates): From 100 to 450Vac.
  Frequency Range: From 2Hz to 400Hz.
Protection:        
  Over Load: 550V(between all terminals)
  Over Voltage: Class III - 450V towards ground.
Earth Leakage:        
  Current Settings: 999mAac / 50Hz-60Hz
  Current Selection: Knob
  Phase Start Selection: 0° and 180°
  Over-Temperature Protection: Yes
  Phase Polarity Trip Indicator: Yes
  Phase Polarity Trip Indicator: 220Vac to 317Vac
  Timer Resolution: 1ms(Max. Time = 99.99s)
  Timer Accuracy: 1ms ± 4ms
  Current Accuracy: ±3% ± 4mA
  Current Resolution: 1mA
  Voltmeter Accuracy(50Hz): 50-350 Vac = ±3% ± 2V
                                           350-550Vac = ±7% ± 3V
  Voltmeter Resolution: 1V
  Maximum Current Specified at 317Vac / 50Hz
Batteries:     1.5V "C" × 8   Bat OK Led  = Vbat >9V
Dimensions: 330(L) × 260(W) × 160(D)mm
Weight: 3850g (batteries included)
Operating temperature Range: 0°C to + 40°C
Storage Temperature: -10°C to + 50°C