Rockwell-automation 1746-NR4 SLC 500 RTD/Resistance Input Module/ Inst Manuel d'utilisateur télécharger pdf (Page 23)

SLC 500™ RTD/Resistance Input Module 23

Publication 1746-IN012B-EN-P - May 2001

IMPORTANT

Module accuracy, using 100Ω or 200Ω platinum RTDs with

0.5 mA excitation current, depends on the following criteria:

• Module accuracy is ± 0.6°C after you apply power to the

module or perform an autocalibration at 25°C ambient with

module operating temperature at 25°C.

• Module accuracy is ± (0.6°C + DT x 0.034°C/°C) after you

apply power to the module or perform an autocalibration at

25°C ambient with the module operating temperature

between 0° to 60°C.

– where DT is the temperature difference between the

actual operating temperature of the module and 25°C

and 0.034°C/°C is the temperature drift shown in the

table on page 22 for 100Ω or 200Ω platinum RTDs.

• Module accuracy is ± 1.0°C after you apply power to the

module or perform an autocalibration at 60°C ambient with

module operating temperature at 60°C.

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Rockwell-automation 1746-NR4 SLC 500 RTD/Resistance Input Module/ Inst Manuel d'utilisateur Page 23