Fault on lighting cct prevents taking Zs

[ukiri]

Then join E & N together , Metrel testers have a double end on one of the probes to do this. Apart from this the OSG shows how to take Zs from a light sw.

 

[DefyG]

Yeah have done that before and you would expect readings to be the same but they weren't.
Does seem more accurate with the N connected, but maybe that's just the meter I was using at the time, when compared with a mates MTF 1552 which had been recently calibrated.

 

[Harry_P]

Yeah have done that before and you would expect readings to be the same but they weren't.
Does seem more accurate with the N connected, but maybe that's just the meter I was using at the time, when compared with a mates MTF 1552 which had been recently calibrated.

In these days of multifunction testers the idea of getting 2 identical test results from 2 seperate tests are long gone. That's the big disadvantage with MFT's