Instrument test box
儀器測試箱
Model : MTB7671/2
The Megger MTB7671/2 is test the insulation resistance, continuity, earth loop impedance, PFC, RCD and voltmeter functions of you testers quickly and easily, recording the test results on the record cards included in the pack. There are also self-adhesive test labels for your tester.
* Specification
Continuity short circuit test current 200 mA Pass / fail indication
Continuity test voltage range 4V - 24V Pass / fail indication
Continuity resistance 0.5Ω, 5.0Ω
Insulation test current 1 mA Pass / fail indication
Insulation test voltages 250V +25% max
500V +25% max
1kV +25% max
Pass / fail Indication
Insulation test resistances 0.25MΩ 0.5MΩ 1MΩ 9MΩ 90MΩ
Loop Local mains impedance
Loop + 1 Loop + 1Ω
Loop + 180 Loop + 180Ω
RCD currents (I) 10mA, 30mA and 100mA
RCD no trip (1/2I) >1999 ms
RCD (I) 40 ms @ 0° ; 50 ms @180°
RCD (5 x I) 10 ms @ 0° ; 20 ms @ 180°