Morning all,
having a bit of a fun time with my tester at the moment. Bear with me as I'm still in training.
Ive got a Dilog 9083p. I know it's not regarded as the best tester out there but like I said, I'm just starting out.
The problem I have is this. Ive tested Ze at the board and all is good. tested my r1+r2 and all is good. when it comes to testing Zs on the circut it comes up really high almost double. for example my sockets came out at 1.5 ohms where as the calculated figure using Ze+(r1+r2) comes out at about 0.7 ohms.
The instructor then says.. now test it with the fluke. And I got a figure of 0.68 ohms. I tried the same test with a metrel and a Megger and they all came up high. only the fluke was anything near accurate. what causes this and is there any way around it? I know theres nothing wrong with doing the calculations but if I didnt have another tester to use, it would leave me wondering if there is a problem with the RCD or breaker if that makes sense
having a bit of a fun time with my tester at the moment. Bear with me as I'm still in training.
Ive got a Dilog 9083p. I know it's not regarded as the best tester out there but like I said, I'm just starting out.
The problem I have is this. Ive tested Ze at the board and all is good. tested my r1+r2 and all is good. when it comes to testing Zs on the circut it comes up really high almost double. for example my sockets came out at 1.5 ohms where as the calculated figure using Ze+(r1+r2) comes out at about 0.7 ohms.
The instructor then says.. now test it with the fluke. And I got a figure of 0.68 ohms. I tried the same test with a metrel and a Megger and they all came up high. only the fluke was anything near accurate. what causes this and is there any way around it? I know theres nothing wrong with doing the calculations but if I didnt have another tester to use, it would leave me wondering if there is a problem with the RCD or breaker if that makes sense