在线亚硝酸盐监测仪
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NITRITE
Nitrite is an intermediate oxidation state of nitrogen, both in oxidation of ammonia to nitrate and in the reduction of nitrate. Such oxidation and reduction occur in wastewater treatment plants, water distribution systems, and natural waters. Nitrite can enter a water supply system through its use as a corrosion inhibitor in industrial process water
TYTRONICS'® SENTINEL - COLORIMETER
Tytronics’ Sentinel is an on-line colorimetric analyzer. The instrument uses a batch sampling technique that allows the use of 0.25" tubing for sample and reagent lines so small amounts of solids will not affect instrument performance.
Other advantages of batch sampling are:
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Analytical results are not affected by sample and reagent flows
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Analyses are only performed as frequently as required, minimizing reagent consumption
Enhanced Features of Tytronics'® Sentinel:
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Programmable from 1 to 10 methods for a single analysis compound
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Up to 3 different calibration methods
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Eight relay outputs, multi-programmable on each relay
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Alarm functions, including sample flow, reagent level detection
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From 1 to 6 stream configurations
METHOD
A colorimetric method is used to determine Nitrite
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Method:
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Colorimetric
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Measurement range:
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0 to 5 ppm
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Sample size:
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8 ml
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Reagent 1:
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Sulfanilamide
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Reagent 1 vol/analysis:
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20 ml
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Reagent 2:
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Napthyl-ethylenediamine
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Reagent 2 vol/analysis:
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1 ml
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Measurement Wavelength:
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550 nm
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Reference Wavelength:
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810 nm
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Analysis Time:
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5 minutes
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ADDITIONAL FEATURES:
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Provides continuous on-line analysis of water or wastewater stream
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Ensures maximum reliability
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Ease of maintenance, rugged design
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Self-checking for easy diagnostics
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Minimizes sampling requirements
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Multiple communication ports, including bi-directional RS 232