rcd x5 testing trouble

[thomasno1cat]

i have been testing an rcd with my calibrated tester but when i test the rcd on x5 my meter shows an error message stating that the fault voltage is greater than 50v. I thought it might be my meter so tryed another and it worked fine. I am now wondering if his meter is faulty.Any ideas?

 

[Mac]

Hi mate can you keep to 1 thread please

 

[thomasno1cat]

yeah ok aany ideas

 

[roukel01]

have you tried your tester on another RCD?

 

[xraytek]

Have you taken a Zs measurement?

For >50V at 150mA you need a Zs >333 Ohms