I have recently acquired a Guildline 9330 10K resistor (thank you Phil).

One of my meters says 10,001.251 ohms at a room temperature of about 19.4C
which is a long way from 2.5ppm or even 12.5ppm (allowing for 5C at 2ppm
worst case).

Now the question has to be where in the UK (ideally in the Midlands) can I
get an accurate calibration of this standard resistor at a reasonable cost?

Thanks
Dave

Hi Dave;

I do not think the resistance can be adjusted if that is what you are thinking, they will just document the actual value.

But the most important thing is stability.

Cheers;

Thomas Knox

From: volt-nuts volt-nuts-bounces@febo.com on behalf of David C. Partridge david.partridge@perdrix.co.uk
Sent: Monday, November 6, 2017 8:43 AM
To: 'Discussion of precise voltage measurement'
Subject: [volt-nuts] Get 10K resistor calibrated in UK

I have recently acquired a Guildline 9330 10K resistor (thank you Phil).

One of my meters says 10,001.251 ohms at a room temperature of about 19.4C
which is a long way from 2.5ppm or even 12.5ppm (allowing for 5C at 2ppm
worst case).

Now the question has to be where in the UK (ideally in the Midlands) can I
get an accurate calibration of this standard resistor at a reasonable cost?

Thanks
Dave

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and follow the instructions there.

Thank you, I've pinged Absolute Calibration an email asking for pricing.

Question: This standard R is designed for use in a temperature stabilised oil bath.  I don't have one of those.  How much will this affect stability, and are there any other issues I need to worry about.

Thanks
Dave