20 EL3000 CONTINUOUS GAS ANALYZERS | OI/EL3000-EN REV. D
… 4 Preparation for Installation
… Uras26
Test gases – Uras26
Test gas for the zero calibration
Test gas for the end-point calibration
with calibration cells
2
or air or sample component-free gas —
without calibration cells
2
or air Span gas*
without calibration cells
2
or air Test gas for each sample component
/ Magnos28
(automatic calibration, i.e. Magnos206
/
Magnos28 with single-point calibration)
-free test gas with O
2
concentration in an existing measuring range or ambient
air.
Calibration cells or span gas*
/ Magnos28
Zero point gas for Uras26 or Magnos206
/ Magnos28, or
-point calibration for Magnos206 / Magnos28,
-free test gas with
2
concentration in an existing measuring range or
Span gas for all sample components in the Uras26 and in
the Magnos206 / Magnos28 (possibly only for the
Uras26 if a single-point calibration is carried out for the
Magnos206 / Magnos28)
-free test gas with O
2
concentration in an existing measuring range or ambient
air.
Calibration cells or span gas*
calibration)
Zero point gas for Uras26 or Magnos27, or IR sample
component
-free test gas with O
2
-concentration in an
existing measuring range or ambient air.
Span gas for all sample components in Uras26 and
Magnos27
calibration, i.e. Caldos27 with
single-point calibration)
-free test gas with a known and
constant rTC value (possibly also dried room air)
Calibration cells or span gas*
calibration)
Zero reference gas for Uras26 or Caldos27, or IR sample
component
-free test gas with a known rTC value
Span gas for all sample components in the Uras26 and
Caldos27 (possibly only for the Uras26 if a single-point
calibration is carried out for the Caldos27)
-free test gas with O
2
concentration in an existing measuring range or ambient
air.
Calibration cells or span gas*
calibration)
-free test gas with O
2
concentration in an existing measuring range or ambient
air.
Span gas for all sample components in Uras26
* Test gas mixture for multiple sample components possible if no or negligible cross-sensitivity is present
Dew point
The dew point of the test gases must be approximately equal to the dew point of the sample gas.
Note
The instructions for calibration must be observed, see Uras26 – Instructions for calibration on page 126.
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