Megger 1730 ZS problem on TT system

[AdieB]

Doing a test with my 1730 for NAPIT inspection. Meter came up with CON which means connection problem. Thought that meter was playing up. Polarity was correct and the Ze was 83 ohms. Got City's to send out a brand new inbox 1730 did the same test with the same result CON. Can't be two meters with same problem. Inspector had his 1530 and plugged in exactly the same and up came the zs reading straight away. spoke to megger and they had no solution and tried to replicate at their work shop, said would et back but has not, good after service .An ideas

 

[applemac]

mine is same meter, con usually means connection of leads not right,
try 2hi for 2 lead non rcd test.
before the software update you had to move the lead across from middle port to the end port.
but now you can do it via the buttons.
is your rotary dial set to l-e?

 

[Former Sponsor TM]

What test lead configuration and loop setting are you using to conduct the Zs test?

 

[applemac]

https://www.youtube.com/watch?v=nsNs_g4aoGk

 

[NickD]

Doing a test with my 1730 for NAPIT inspection. Meter came up with CON.

It's your tester's comment on the Part P registration regime...

 

[telectrix]

thanks, nick. that almost made me spit out a gobfull of ale.