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1.5. Operating environment limits
The spectrometer is thermally stabilised and designed to operate indoors or outdoors under a
variety of conditions and environments. Avoiding exposure to direct sunlight will help maintain
this thermal stability.
Table 1
– Atmospheric requirements for electrical safety
Parameters
Value
Units
Pollution degree of intended environment
4
Maximum installation altitude
3000
metres
Pollution degree of the environment refers to the level of contamination that the exterior of the
device can cope with. Pollution degree 4 means that continuous conductivity from conductive
dust, rain or other wet conditions will not cause
electrical safety
to be compromised.
Consideration should also be given to ventilation of the surrounding area when the system is
being purged.
CAUTION
Purging the device with dry nitrogen is recommended for
optimum performance (Note: maximum inlet pressure of 1 barg
with a flow rate 0.5 to 2 litre/min).
WARNING
When purging with nitrogen, ensure there is adequate
ventilation to prevent asphyxiation; an oxygen sensor is
recommended.
