4065 DMM Resolution Clarification.

[sivaramkumar]

Hi,

I have 4065 6½-Digit DMM card. I gothrough that DMM manual and I find out that 6½-Digit meant by Resolution of the Multimeter.

Could you please give me the clear definition of the 6½-Digit? In our Daq card we are mentioning the resolution as a 16bit. Why we are telling ½-Digit in DMM.?

Thanks

SIVA

[Dennis_Knutson]

That has been how resolution of a DMM has been specified since, well, the digital multimeter has been around. A google search for 'DMM resolution' turned up this Wikepedia article as the first listed.

[Steve_B]

Hi SIVA,

We do have additional content that would help you compare digits of resolution and bits, since there is a conversion to move between one and the other. The digits of resolution has been a standard way of specifying the resolution of a DMM as Dennis mentioned above.

KnowledgeBase Article: What Does Digits Of Resolution Mean For DMMs?

DMM Help: Resolution

[KB29]

I am using DMM PCI 4065 to measure the resistance. I need to measure the resistance of an open circuit which should ideally have infinite value.

My lower limit is 1 Megaohm. But how do I specify the upper limit as the value is infinite? I need to ensure the value lies between my lower and upper limit.

Is there any method where I can compare the infinite resistance?

Thanks

KB29