Emerson Rosemount BINOS 100 F Instruction Manual page 7

ATEX Instruction Manual
HAS8xE-IM-ATEX
January 2004
Flammable Gas(es)
Gases and gas mixtures are assigned to be
flammable if they might become ignitable
when in a mixture with air.
Protective Gas
Air or inert gas used for purging and
maintaining an overpressure and, if
required, dilution.
Pre-Purging
The pre-purging phase serves to remove any
combustible gas out of the analyzer's
enclosure prior to switching on the analyzer.
During this time the housing is purged with
5 times its own volume.
Pressurization Modes
Pressurization mode „Continuous
Flow"
In EEx p „continuous flow mode" the
protective gas flows with higher rates
through the enclosure. Flow rates are
calculated to hold an overpressure of > 1
mbar compared to atmospheric.
Emerson Process Management Manufacturing GmbH & Co. OHG
Terms used in this manual
Explosive Gas(es)
Gases and gas mixtures are assigned to be
explosive if they consist of a flammable gas
in a mixture with air and the concentration is
inbetween the explosive limits.
Dilution
The continuous supply of a protective gas,
after purging, at such a rate that the
concentration of a flammable mixture inside
the pressurized enclosure is maintained at
a value outside the explosive limits except
in a dilution area.
Pressurization
Compensation"
In EEx p „leakage compensation mode" just
as much protective gas is used to hold an
overpressure of > 1 mbar compared to
atmospheric.
MLT 2 / BINOS
mode

100 F
„Leakage
P - 5