Meter calibration checks

[a1colly]

Hi all

Not having much joy searching for a product to do the job.

I have seen test cards which allow you to check the calibration of your multimeter to make sure that the continuity and resistance readings are still accurate.

Does anybody know what they are called and where I can obtain these from?

Many thanks

Tony

 

[Guest123]

Checkboxes and Calibration Checkers for Electrical Test and Measuring Equipment


There are some units in the link above available from our forum sponsors.

The item I think you mean is the CalCard.....

TestCal CalCard — Calibration Resistance Checkbox


Alternatively you could make your own.

 

[a1colly]

Cheers Lenny, too lazy to make my own so of to the shops to buy one

 

[telectrix]

you could also use a particular circuit at home to check your meter. record the readings taken the same each time , monthly. as long as there's no drift.

 

[digat]

Bought my check box on ebay £22.

 

[esc]

Hi telectrix, the calcard site that lenny posted above sugests methods for checking the ongoing accuracy of you meter regarding its RCD and Zs functions