87
INZ-TN2ZPG-E
4. Performance
Repeatability:
±0.5% of full scale
Linearity:
±1% of full scale
prior to atmospheric pressure correction
(option)
Zero drift:
±0.5% of full scale/week (measurable
component of NDIR)
±2.0% of full scale/week (O2 analyzer)
Span drift:
±2.0% of full scale/week
Response time (T
90
) :
30 seconds or better
Response interval may be changed de-
pending on timing of the switching gas
by sample switching operation. (Td=5-20
seconds)
Interference from other gases:
Sample switching design effectively
minimizes interference. But it may occur
depending on component gas and its
concentration.
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-
ence in this case.
Contact manufacturer for application
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5. EC Directive Compliance
LVD (2014/35/EU)
EN
61010-1
EN
62311
EMC (2014/30/EU)
EN 61326-1 (Table 2)
EN 55011 (Group 1 Class A)
EN 61000-3-2 (Class A)
EN
61000-3-3
EN
61326-2-3
RoHS (2011/65/EU)
EN
50581
6. Requirements for Sample Gas
Flow rate:
1.0 ±0.2L / min
Temperature:
WRÛ&
Pressure:
10 kPa or less (Gas outlet side should
be open to the atmospheric air.)
Dust:
100
μ
g/Nm
3
or less in particle size of 0.3
μ
m or smaller
Mist:
Unallowable
Moisture:
For CO, NO, SO
2
measurement: less than
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For
CO
2
PHDVXUHPHQWOHVVWKDQÛ&
saturation point (with comparable mois-
tive levels in sample and reference gas-
es).
Corrosive component:
1 ppm or less
Standard gas for calibration:
Zero gas ; Dry N
2
Span gas ; Each sample gas having
concentration 90 to 100% of
its measuring range (recom-
mended).
In case a zirconia O
2
analyzer is installed
externally and calibration is carried out
on the same calibration gas line:
Zero gas ; Dry air or atmospheric air (Do
not use with CO
2
measure-
ment)
Span gas ; For other than O
2
measure-
ment, each sample gas hav-
ing concentration 90 to 100%
of its measuring range
For
O
2
measurement, O
2
gas
of 1 to 2 vol%/remains N
2
gas
Reference gas for sample switching:
NO,
SO
2
, CO measurement;
For sample gas dewpoint > 2°C sample
switching reference gas is wet N
2
.
For sample gas dewpoint < 2°C use
dry N
2
or zero gas equivalent.
CO
2
measurement;
N
2
without CO
2
and moisture. (over
99.999999vol%)
Purge gas:
With CO
2
measurement, be sure to per-
form the purge in the analyzer with N
2
.
And refer to section section 3.4.4. “Purg-
ing of instrument inside”.
7. Installation Requirements
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not receive direct sunlight, draft/rain or radiation from hot
substances. If such a place cannot be found, a roof or
cover should be prepared for protection.)
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