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mdashper
User
Joined: 20 Nov 2006
Posts: 3
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 Posted: Mon Nov 20, 2006 4:12 pm Post subject: DrDAQ and DD100 temperature sensor scaling |
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Do you have any scaling data re. using the DD100 sensor on the Resistance input of DrDAQ?
I have tried calibrating it by clamping two sensors together in an ice bath and taking Resistance and Temperature readings at the same time as the temperature is increased, and then using this data to create a scaling file. The results are not bad (about ±0.3-0.4°C)but there do seem to be some temperature ranges where there is a bigger discrepancy. I can probably live with it, but it does strike me that the DrDAQ firmware must use some sort of internal scaling table for the Ext sockets.
Martin Dashper |
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Michael
Guru
Joined: 07 Jul 2005
Posts: 93
Location: St Neots, Cambridgeshire
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| Posted: Tue Nov 28, 2006 11:28 am Post subject: |
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Hello,
The scaling of the temperature readings is managed by the software. You can use the scaled input options to add calibration points to the software if you need to.
Please check the manual for further details.
Best regards,
Michael |
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