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PostPosted: Tue Mar 20, 2018 8:57 pm 
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My meter has an additional Mohm setting of 20,200 or 200 and continuity on it has 20,200 and 2000 ohm setting.
Which setting do I need for each test respectively? Any help appreciated, testing exam tomorrow and unsure, and cant find info anywhere and been ages since used as been on install, any help greatly appreciated.

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PostPosted: Thu Mar 22, 2018 7:51 pm 
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I would presume the Mohm setting refers to milli ohm and this would be used to test for bonding where a very small resistance is being measured ie less than 2 ohms and usually such a meter would use a very low voltage and amp across the probes to prevent sparks etc.
It could also be used to measure and earthing path.

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PostPosted: Thu Mar 22, 2018 10:49 pm 
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If it's a capital M then it signifies mega ohms. Milli is always lower case

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