Varying continuity readings

[pig]

Hi all,
I am using a Fluke 1662 with fused test leads. I find when doing continuity tests such as R1+R2, as the test button is being held the result fluctuates dramatically. Both increasing and decreasing. Seems to happen on insulation resistance as well however not so much. I also find after zeroing the leads with the Fluke zeroing adaptor, I press the test button again with the leads still in the adaptor and get a reading between 0.20 and 0.80 ohms.
Used a Megger before and never came across this.

Regards.

 

[MFS Electrical]

Leads or clips or even batterys. I go through 3 or 4 pair of leads a year.

You chew them?

 

[ChrisElectrical88]

You chew them?

Haha not quite, i ise my test kit alot. Bit clumsy aswell standing. On leads, clips etc. Always have a spare set on the van aswell as atleast 20 batterys