According to GB11893-89 "Water Quality - Determination of Total Phosphorus - Ammonium Molybdate Spectrophotometric Method", Huihuan total phosphorus analyzer ,under neutral conditions, potassium persulfate (or nitric acid-perchloric acid) is used to digest the water sample, oxidizing all phosphorus present into orthophosphate. In an acidic medium, orthophosphate reacts with ammonium molybdate to form phosphomolybdic heteropoly acid in the presence of antimony salt, which is immediately reduced by ascorbic acid to produce a blue complex.
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Test range |
(0-50)mg/L(customizable) |
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Indication error |
≤±10% |
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Repeatability |
≤±10% |
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Zero drift |
≤±5% |
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Range drift |
≤±10% |
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Communication interface |
RS232*2;RS485(customizable). |
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Power supply parameter |
(220±10%)VAC,(50±1%)Hz |
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Ambient temperature |
(5~35)℃ |
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Relative humidity |
≤85%,RH |
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Supports range customization with multiple selectable ranges. |
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Using multi-point measurement module, quantitative more fast and accurate. |
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A new type of discharge valve has been jointly developed, which effectively reduces the interference of taking liquid and prolongs the life of the discharge valve. |
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Using 24-bit high precision AD chip, the measurement accuracy is greatly improved. |
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The initial signal of measurement and measurement can be automatically initialized, without manual adjustment, improving operation and maintenance efficiency. |
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The data stability is improved, which is about 30%-50% higher than before. |
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The system upgrade supports USB flash drive upgrade without remote operation, improving O&M efficiency. |
- With the function of separating clean and waste liquid, automatically diverting the cleaning liquid and waste liquid into different collection buckets;
- With automatic calibration function, you can set periodic execution;
- With equal time interval measurement, whole point measurement, controlled measurement and other functions, to meet the different needs of each site;
- With automatic standard sample verification function, it can be set to be executed at a regular time every day. When the verification is unqualified, the calibration will be automatically carried out, and the verification will be carried out after the calibration is finished to ensure the linear accuracy of the equipment;
- With automatic cleaning function, the pipeline and digestion tank will be cleaned before and after measurement, and regular additional cleaning can be set to ensure the cleanliness of the pipeline and digestion tank;
- ·With power-on self-test and abnormal reset functions, to ensure that the equipment automatically recovers to normal state after abnormal power failure and power-on;
- With three-level rights management function, different personnel assign different operation rights to prevent equipment data distortion or failure caused by misoperation of non-professional personnel;
- With operation log, process log and other recording functions, it is convenient to check the operation of equipment and personnel operation records.
Huihuan total phosphorus analyzer is mainly used in the field of online water quality monitoring of fixed pollution sources such as industrial wastewater, domestic sewage and aquaculture wastewater discharge.Huihuan total phosphorus analyzer can form an online monitoring system for pollution source water quality together with the sampling unit, data acquisition and transmission unit, and receiving management unit.
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