Appendix
9-5
Operating instructions ULTRAMAT 23 gas analyzer
C79000-B5276-C216-03
9.2 Explanations
9.2.1 Abbreviations
Table 9-1 List of abbreviations used
Abbreviation
Meaning
ADC Voltage on the analog-to-digital converter (A/D converter)
AR Autorange
AUTOCAL Automatic calibration of analyzer
CAL Calibration
CAL-Gas Calibration gas
ELAN Economical Local Area Network
ERR Faulty operation of analyzer
IR Infrared
LEL lower explosion limit
LCD Liquid Crystal Display
MEAS Measure
MR Measuring range
MV Measured value
NAM NAMUR
NormenArbeitsgemeinschaft für Mess- Und
Regelungstechnik in der chemischen Industrie
(standards committee for measuring and control
technology in the chemical industry)
PUMP Pump on/off
R Relay or computer mode (remote)
SV Span (calibration) gas valve
Sync Synchronization (with other devices in the system)
V-ADCt
ZV Zero gas valve
9.2.2 Explanation of Symbols
To avoid danger to the life or health of users or service engineers, and
to avoid damage to property, certain sections of text in this Manual are
identified by warning symbols (pictograms).
General indication of danger
It is essential to observe the operating instructions
!
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