Sample Gas Inlet Conditions With Positive Pressure In The Sample Gas Feed Path - ABB EL3060 Series Operating Instruction

22
Sample gas inlet conditions with positive pressure in the sample
gas feed path
Sample gas composition
Housing designs
EL3060 CONTINUOUS GAS ANALYZERS
A special version of the gas analyzer is suitable for measuring
non-flammable and flammable gases under positive pressure. Under no
circumstances may the sample gas be potentially explosive.
If the sample gas consists of non-flammable gases and vapors, the oxygen
content may be max. 21 % vol. as per atmospheric conditions.
If the sample gas consists solely of oxygen and flammable gases and vapors,
it is generally not potentially explosive if the oxygen content is safely limited
to max. 2 % vol.
Flammable gases which are potentially explosive under the conditions ap-
plicable for the analysis, even without the presence of oxygen, may only be
contained in the mixture to be analyzed in non-safety-critical concentra-
tions.
The gas analyzer may not be used for measuring gases that attack the mate-
rials in contact with the sample medium (e.g. gases containing chlorine).
Control unit with Magnos206 or Magnos28 or Caldos25 or Caldos27
analyzer
The control unit housing must be equipped with a vent if one of the analyz-
ers is installed in the control unit.
Uras26 analyzer unit
The analyzer unit housing must be equipped with two vents.
The "flowing reference gas" option is not available.
| OI/EL3060-EN REV. A