Online Total Nitrogen Analyzer Cod BOD Ammonia Nitrogen

Measurement principle:
In the alkaline medium of 120 ° C ~ 124 ° C, the addition of potassium persulfate oxidant, the ammonia, ammonium salt, nitrite and most of the organic nitrogen compounds in the water sample is oxidized to nitrate, and then alkaline in the form of nitrate nitrogen Determination of total nitrogen by potassium persulfate digestion ultraviolet spectrophotometry.

Main features:
Touch screen display and command input; multiple sampling measurement modes, unique design, lower failure rate, lower maintenance, lower reagent consumption and higher cost performance.
Third, technical indicators:
1 Method basis: resorcinol spectrophotometry.
2 Measurement range: 0 mg / L ~ 50 mg / L, 0 mg / L ~ 100 mg / L, 0 mg / L ~ 500 mg / L.
3 Accuracy: no more than ± 8%.
4 Repeatability: no more than ± 3%.
5 Measurement period: The minimum measurement period is 20 min. According to the actual water sample, the digestion time can be arbitrarily modified from 5 min to 120 min.
6 Sampling period: time interval (arbitrarily adjustable from 10 min to 9999 min) and hourly measurement mode.
7 Calibration period: adjustable from 1 to 99 days at any interval.
8 Maintenance cycle: usually once a month, about 30 minutes each time.
9 Reagent consumption: less than 0.5 yuan / sample.
10 Output: 2 channels RS-232, 2 channels 4 mA ~ 20 mA
11 Environmental requirements: indoor temperature adjustable, recommended temperature +5 ~ 28 ° C; humidity ≤ 90% (no condensation).
12 Power supply: AC230±10% V, 50±10% Hz, 5 A.
13 Dimensions: height 1450 × width 510 × depth 450 mm.
14 Others: Abnormal alarms and power failures will not lose data;
Touch screen display and command input;
After abnormal reset and call after power failure, the instrument automatically discharges residual reactants in the instrument and automatically resumes working condition.
 




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