AO2000-LS25 LASER ANALYZERS | OI/AO2000-LS25-EN REV. D 9
Special operating conditions
• The gas analyzer meets Ex approval only with a suitably
approved purging and monitoring unit for the pressurized
enclosure. • The maximum permissible purging gas
pressure (see Purge parameters for pressurized enclosure
on page 10) may not be up-scaled. If the purging and
monitoring unit used does not have an integrated pressure
reducer, the purging gas pressure must be limited using an
additional external pressure reducer.
• The device contains a 3 V lithium battery. The housing must
not be opened when a hazardous atmosphere may be
present. The safety instructions in Opening and closing the
housing on page 13 must be observed.
• Possible danger of electrostatic discharge. The safety
instructions in Operating instructions on page 21 must be
observed.
Ambient conditions
Operating temperature
−20 °C to +55 °C
Storage temperature
−20 °C to +55 °C
IP rating
Designed for outdoor applications (all IP 66-certified
modules)
Degree of contamination
2
Installation category (overvoltage category)
II
Installation height
2000 m
Air humidity
0 to 95 %
Device data
Laser classification
Class 1 according to IEC 60825-1
Class 1M according to IEC 60825-1*
* All O
2
analyzers supplied after October 2017
ENOHD
For O
2
analyzers: 7.88 m
NOHD: Nominal Ocular Hazard Distance
Eye safety distance is the distance at which the irradiation level
or irradiation is equal to the corresponding exposure limit of the
eye’s cornea.
If the eye safety distance also includes the possibility of viewing
with optical aids (e.g. telescope), we refer to the extended eye
safety distance (ENOHD: Enlarged Nominal Ocular Hazard
Distance).
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