61
7 Appendix
7.11
Terminology and abbreviations
ALEOS
●
Alarm at end of measuring range (end of
scale)
ALPPM
●
Adjustable alarm in ppm range
CENELEC
●
European Committee for Electrotechnical
Standardization
NiMH
●
Nickel metal hydride
ppm
●
Parts per million
Ring memory
●
Type of data storage in the device
●
If the available storage space is full, the
oldest file is automatically overwritten by
the current file.
SC
●
Gas-sensitive semiconductor
Stack memory
●
Type of data storage in the device
●
If the available storage space is full, you
are prompted to confirm whether the old
-
est file should be overwritten by the cur
-
rent file.
TC
●
Thermal conductivity sensor
VOL
●
Volume
7.12
Referenced documents
The following standards, guidelines and regulations are referred
to in these operating instructions:
/1/ DVGW G 465-4
Deutsche Vereinigung des Gas- und Wasserfaches e. V. (German
Association of Gas and Water Specialists); Regulation G 465-4:
Gasspür- und Gaskonzentrationsmessgeräte für die Überprüfung
von Gasanlagen (Gas-Detection and Gas-Concentration Measure-
ment Devices for Inspection of Gas Systems)
Available for download at: www.dvgw.de
/2/ EN 60079-7:2007
/3/ EN 60086-1
/4/ EN 61951-2
/5/
94/9/EC (ATEX 100a)
