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Sample Gas Inlet and Outlet Conditions,
Flammable, Corrosive
or Toxic Gases
Module
Caldos27
Magnos206
Uras26
Limas11
Suitable for
measurement of ...
Not suitable for
measurement of ...
Toxic Gases
Corrosive Gases
Flammable Gases
Zone 2
Flammable Gases
Oxygen Sensor
Gas Module
1-4
A housing purge is required if the sample gas contains flammable, corrosive or
toxic components (see "Housing Purge" section, page 3-5).
Please observe additionally the following application restrictions and notes:
Application Restrictions and Notes
If the sample gas contains Cl
components, operation of the analyzer is allowed only when the sample gas
composition has been taken into account during configuration at the factory.
If the sample gas contains Cl
of the analyzer is allowed only when the sample gas composition has been taken
into account during configuration at the factory.
Highly corrosive associated gas components, e.g. chlorine (Cl
chloride (HCl), as well as gases or aerosols containing chlorine must be cooled or
undergo prior absorption.
Standard Cell
Non-corrosive gases
Highly corrosive gases,
e.g. gases containing
chlorine, H
SO
, SO
,
2
4
3
fluorine compounds
Housing purge (≤ 20 l/h)
with sample component-
free air or with N
2
Housing purge (≤ 20 l/h)
with sample component-
free air or with N
,
2
PTFE gas lines
Housing purge (≤ 20 l/h)
with N
2
–
O dew point ≥ 2 °C. The oxygen sensor should not be used with dry and with
H
2
flammable sample gas. It should not be used if the associated gas contains the
following components: H
aerosols, mercaptane, base components.
Corrosive associated gas components and aerosols must be cooled or undergo
prior absorption. The gas module should not be used with flammable sample gas.
1) purge curtain
2) p
= 7 to 20 hPa, 15 to 20 l/h
e
Chapter 1: Preparing the Installation
continued
, HCl, HF, SO
, NH
2
2
3
, HCl, HF or other corrosive components, operation
2
Quartz Cell
Corrosive gases,
e.g. wet Cl
, wet HCl,
2
H
SO
, SO
, ozone
2
4
3
Fluorine compounds
Housing purge (≤ 20 l/h)
with sample component-
free air or with N
2
Housing purge (≤ 20 l/h)
with sample component-
free air or with N
2
Housing purge (≤ 20 l/h)
with N
2
–
S, chlorine or fluorine compounds, heavy metals,
2
, H
S or other corrosive
2
) and hydrogen
2
Safety Cell
Corrosive gases,
e.g. dry HCl, dry COCl
(< 50 ppm H
O)
2
Wet gases containing
chlorine, H
SO
, SO
2
4
fluorine compounds
1)
Cell purge
with N
with sample component-
free air with negative
pressure and flow
monitoring; additional
monitoring for sample gas
traces possible
1)
Cell purge
with N
with sample component-
free air with excess
2)
pressure
and flow
monitoring
1)
Cell purge
with N
Cell purge with N
excess pressure
flow monitoring
42/24-10 EN Rev. 9
2
,
3
or
2
or
2
2
with
2
2)
and
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