Smycka 4-20mA

[Snail Instruments]

Narazil jsem na problem, jestli snimace (meridla), ktera poskytuji proudovy signal 4-20mA, pouzivaji tento proud zaroven k napajeni, nebo jestli ho naopak samy dodavaji a merici strana je potom pouze pasivni - odpor. V druhem pripade samozrejme musi mit vlastni napajeni. Jake jsou zauzivane zvyklosti u takovychto aparatu?

J. Hanzal


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Electronical devices for chemical laboratory, custom electronics design
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Snail Instruments                      Josef Hanzal, M. S.
Vojanova 615                           phone/fax: +420-311-624433
266 01 Beroun                          e-mail: snail@iol.cz
Czech Republic                         URL: http://www.vitrum.cz/snail/
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