Weidmuller PT 100/3 sig conditioners for current output Manual do Utilizador descarregar pdf (Página 5)

4 Calibration

Warning!! The power supply must be disconnected, before

changing the signal conditioner settings using the

DIP switches.

Failure to observe will lead to considerable damage!

4.1 Equipment

– Power supply 24 Vdc, 50 mA

– Simulator for PT 100 or precision resistance decade

– Current meter/voltmeter that can be so calibrated, as to allow

an accuracy of > 0.1 % from the upper range value

4.2 Calibration with a signal output from 0 ... 20 mA

1. Select the temperature range on the printed circuit board

using the DIP switch, see table on the module or pages 22

and 23.

The DIP switches 1, 2 and 3 set the minimum input tempera-

ture ϑ

min

The span (difference between minimum and maximum input

temperature) is set using the DIP switches 4, 5 and 6.

1 2 3 4 5 6 7 8 9 10 ... 13 14

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Weidmuller PT 100/3 sig conditioners for current output Manual do Utilizador Página 5