2-2 | Model 933S UV Analyzer
Response Time
All response times exclude the external sample system.
H
2
S: Typically < 30 seconds to T
90
COS: Typically < 60 seconds to T
90
MeSH: Typically < 180 seconds to T
90
Accuracy
± 2.0 % full-scale of Standard Ranges (Cells 40 cm or smaller), based on
minimum ranges (e.g., 40 cm):
H
2
S: ± 0.5 PPM
COS: ± 2 PPM
MeSH: ± 1 PPM
± 5.0 % full-scale of Low Range option (White Cell, 81.2 cm) to a minimum
of:
H
2
S: ± 0.25 PPM
COS: ± 1 PPM
MeSH: ± 0.75 PPM
Accuracy is determined by comparing analyzer response to a known stan-
dard gas after a calibration has been performed.
Repeatability
± 2.0 % full-scale of Standard Ranges (including Column effects)
Calibration
Calibration gases in nitrogen or methane.
Linearity
± 2.0 % full-scale of Standard Ranges to a minimum of:
H
2
S: ± 0.25 PPM
COS: ± 1 PPM
MeSH: ± 0.75 PPM
Stability
Noise: 1.0 % of Standard Ranges (excluding cross-talk effects)
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