Siemens OOH740-A9-Ex - Technical Terms, Abbreviations, and Formula Symbols

1
About this document
Technical terms, abbreviations, and formula symbols
12
Building Technologies A6V10367521_h_en_--
Fire Safety 2015-02-02
1.3 Technical terms, abbreviations, and formula
symbols
Term Explanation
AI Alarm indicator
ASA Advanced Signal Analysis
ES Product version
C-NET Addressed detector line
C-NET-Ex
Addressed detector line in a potentially explosive atmosphere
downstream of a line adapter (Ex) FDCL221-Ex
K-MK Maximum current connection factor on a collective detector line
LED Light-emitting diode
Symbol Meaning
C
0
Maximum external capacity
C
C
Maximum permissible cable capacitance
C
i
Maximum internal capacity
I
0
Maximum output current
I
i
Maximum input current
L
0
Maximum external inductivity
L
C
Maximum permissible cable inductance
L
i
Maximum internal inductivity
P
0
Maximum output power
P
i
Maximum input power
R
C
Resistance of the connection cable
T
a
Ambient temperature in a potentially explosive atmosphere
U
i
Maximum input voltage
U
m
Maximum r.m.s. value of the alternating voltage.
Maximum permissible voltage of an associated item of electrical
equipment without canceling the energy limitation.
U
0
Maximum output voltage
You will find more technical terms in the glossary at the end of this document.
The symbols
used correspond to the EN
60079
-
11 standard.