ETHOS 4285
4285 Calibration Checkbox
Checks all leading makes of loop, RCD, insulation, continuity and muti-function testers
12 comprehensive test points covering, loop, insulation, continuity and RCD
Null facility to remove lead resistance
Continuity tests at 0.5Ω, 1Ω and 2Ω
Insulation tests at 0.5MΩ, 2MΩ and 200MΩ
Loop impedance tests at 1Ω and 100Ω [plus local impedance]
RCD test currents at 15mA [x½] 30mA and 150mA [x5] trip times at 38ms
Supplied with end of line calibration certificate