Siemens ULTRAMAT 23 Series - List of Abbreviations

List of abbreviations
C
C.1 List of abbreviations
Table C-1
Abbreviation/symbol Description
< Smaller than
> Greater than
= Equal to
≤ Smaller than or equal to
≥ Greater than or equal to
≙ Corresponds to
≈ Approximately
± Plus/minus
% Percent; 100th part of whole
% vol. Volume percent
" 1 inch ≙ 25.4 mm)
°C Degrees centigrade (1 °C ≙ 1.8 °F)
°F Degrees Fahrenheit (1 °F ≙ 0.555 °C)
A Ampere
sec. Section
AC Alternate Current
ADC Analog to Digital Converter
AlGaN Aluminum Gallium Nitride, a semiconductor material
Ar Argon, a noble gas
AR Autoranging
ATEX Atmosphère explosible (French for explosive atmosphere)
AUTOCAL Automatic calibration function,
derived from AUTOMATIC CALIBRATION
Bit binary digit
BImSchV Bundesimmissionsschutzverordnung (Federal German Emission Protection Di‐
rective)
BUV Blue Ultraviolet
ca. approx.
CaF
2
CaF
2
= calcium 󹪞uoride
CD Compact Disk, a storage medium
CE Communauté Européenne (French for European Community)
CH
4
CH
4
= methane
C
2
H
4
C
2
H
4
= ethene, ethylene
C
6
H
14
C
6
H
14
= hexane
CO CO = carbon monoxide
ULTRAMAT 23
Equipment Manual, 04/2022, A5E37100388-012 221