24 EL3060 CONTINUOUS GAS ANALYZERS | OI/EL3060-EN REV. A
Test gases for the calibration
Uras26
Analyzer Test gas for zero-point calibration Test gas for end-point calibration
Uras26 with calibration cells
(automatic calibration)
N
2
or air or IR sample component-free
gas
– (calibration cells)
Uras26 without calibration
cells (automatic calibration)
N
2
or air Span gas*
Uras26 without calibration
cells (manual calibration)
N
2
or air Test gas for each sample component
or for each detector
Uras26 + Magnos206
(automatic calibration,
i.e. Magnos206 with
single-point calibration)
IR sample component-free test gas
with O
2
concentration in an existing
measuring range or ambient air. Same
moisture content as process gas.
Calibration cells or span gas*
Uras26 + Magnos206
(manual calibration)
Zero reference gas for Uras26 or
Magnos206, or IR sample compo-
nent-free test gas with O
2
concentra-
tion in an existing measuring range
or ambient air. Same moisture con-
tent as process gas.
Span gas for all sample components
in the Uras26 and Magnos206 (possi-
bly only for the Uras26 if a sin-
gle-point calibration is carried out for
the Magnos206)
Uras26 + Magnos28
(automatic calibration,
i.e. Magnos28 with
single-point calibration)
IR sample component-free test gas
with O
2
concentration in an existing
measuring range or ambient air. Same
moisture content as process gas.
Calibration cells or span gas*
Uras26 + Magnos28
(manual calibration)
Zero reference gas for Uras26 or
Magnos28, or IR sample compo-
nent-free test gas with O
2
concentra-
tion in an existing measuring range
or ambient air. Same moisture con-
tent as process gas.
Span gas for all sample components
in the Uras26 and Magnos28 (possi-
bly only for the Uras26 if a sin-
gle-point calibration is carried out for
the Magnos28)
Uras26 + Caldos27
(automatic calibration,
i.e. Caldos27 with
single-point calibration)
IR sample component-free test gas
with a known and constant rTC value
(possibly also dried room air)
Calibration cells or span gas*
Uras26 + Caldos27
(manual 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 Cal-
dos27)
Uras26 + Caldos25
(automatic calibration)
Sample component-free test gas or
substitute gas for Uras26 and
Caldos25
Test gas or substitute gas mixture
for all sample components in the
Uras26 and in the Caldos25*
Uras26 + Caldos25
(manual calibration)
IR sample component-free test gas
for Uras26 and sample component-
free test gas or substitute gas for
Caldos25
Span gas for all sample components
in the Uras26 and test gas or substi-
tute gas with known sample compo-
nent concentration for Caldos25
* Test gas mixture for multiple sample components possible if no or negligi-
ble cross-sensitivity is present
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