Rosemount 848T Manual do Utilizador descarregar pdf (Página 13)

13

Rosemount 848T Family

November 2014

www.rosemount.com

Ambient temperature notes

Examples

When using a Pt 100 (α = 0.00385) sensor input at 30 °C

ambient temperature:

 Ambient Temperature Effects: 0.003 °C x (30 - 20) = 0.03 °C

 Worst Case Error: Sensor Accuracy + Ambient Temperature

Effects = 0.30 °C + 0.03 °C = 0.33 °C

 Total Probable Error:

0.30

2

0.03

2

+0.30°C=

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