Glossary - Siemens SITRANS TH100 Operating Instructions Manual

Glossary

Analog
A variable which is infinitely adjustable, e.g. voltage. In contrast to "Digital".
ATEX
ATEX is the abbreviation of the French term "Atmosphère explosible". ATEX stands for the
two directives of the European Community for the field of explosion protection: the ATEX
product directive 94/9/EC and the ATEX operation directive 1999/92/EC.
Auxiliary power
Power supply
→
CE
Communautés Européenes: European communities
DC
Direct Current Direct current
Digital
Representation of a variable, e.g. time, in the form of characters or numbers. In its digital
representation, this variable can be changed only in pre-defined steps. In contrast to
"Analog".
DIN
Deutsches Institut für Normung e. V. (German standards association)
EC
European Community
EC low-voltage directive
The EC low-voltage directive applies to electrical equipment with rated voltages of:
● Alternating current from 50 V to 1000 V;
● Direct current from 75 V to 1500 V.
SITRANS TH100
Operating Instructions, 06/2010, A5E00331168-02
45