Agilent-technologies U2802A Manuel d'utilisateur télécharger pdf (Page 61)

Product Specifications 4

Agilent U2802A 31-Channel Thermocouple Input User’s Guide 51

Making Accurate Temperature Measurements

Thermocouple measurement accuracy is very sensitive to cold junction

sensor errors and temperature gradients across the terminals. Keep the

module away from any heat sources and drafts to minimize any variation

between channels.

The channels located closest to the center near the reference thermistor

will have the best accuracy. It is important to use channels that are

physically close together on the screw terminals when taking relative

measurements. Channels that are closest together will have the best

agreement.

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Agilent-technologies U2802A Manuel d'utilisateur Page 61