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1st Building of Taiheng Mansion, NO.22 Zhiren Street, Puyan, Binjiang District, Hangzhou, China
Hangzhou 310053
Phone: 0571-28322780
Fax: 0571-87851772
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Date/Time:  8/30/19 3:11 GMT

WDet-5000TPN Total Nitrogen Online Automatic Analyzer

WDet-5000TPN is a self-developed total nitrogen online monitoring instrument. This
product is based on the global initiative magnetic conductivity measurement
platform, combining with constant optical fiber and digestion colorimetric
integration technology. The total nitrogen in wastewater effluent automatic online
monitoring system has features including high precision, low detection limit, high
stability, and low maintenance frequency.

This product works in accordance with the technical requirements of GB 11894-1989
Water Quality Total Nitrogen-Alkaline Potassium Persulfate Digestion-UV
Spectrophotometry, fully meets the pollution sources, municipal wastewater,
industrial processes in the application areas, and has passed the certification of
Features Technical Specification
Features Of WDet-5000TPN Total Nitrogen Online Automatic Analyzer

High accuracy and reliability, strong capability of anti-interference
● Magnetic conductivity total nitrogen measurement technology will be not affected
by chromaticity, suspended
solids and bubbles, especially suitable for the monitoring of inlet water
● The special design of flow and reagent ratio, high precision, low detection
● Adopt constant optical fiber and light intensity compensation algorithm, small
drift for long-term operation
Low maintenance and cost
● Has a key self-checking function, easy to debug, maintain, comparison test
● Self-diagnosis function, assisting maintainer to analyze the failure
● Imported single-channel high integration valve island which is simple and easy
to maintain, dismantle and clean
● All-day networking for real-time inspection of instrument running state
High intelligent level
● Scan code function: rapidly obtain running/maintenance information of the
● Alarm function: provide intuitive and accurate information for grounding self-
check, reagent insufficiency and etc.
● Quality control: equipped with parallel sample test, standard sample
verification and standard recovery rate detection
● Reverse control function: start automatically by flow and PH

Technical Specification Of WDet-5000TPN Total Nitrogen Online Automatic Analyzer
Method Water Quality Total Nitrogen-Alkaline Potassium Persulfate Digestion-UV
Range 0.2~5~25~50mg/L (customizable)
Zero Drift ±5.0% F.S.
Span Drift ±10.0% F.S.
Indication Error ±10.0%
Repeatability ≤5%
Interval Hourly and interval measurement, and the instrument can also be
started by serial port
Maintenance <2 hour/month
Lower Limit 0.2mg/L
Quality Control
Sample Comparison ±10%
Water Sample
Comparison >2mg/L±10%
Reagent 1 set reagents is able for about 250 times of measurement (can be
customized according to field needs)
Interface 1×4-20mA input/output (expandable to 2 )
RS485/RS232/USB interface/WIFI/ Bluetooth (optional)
Working Temp 5℃~40℃
Power 200W (220VAC 50Hz), regardless of the pump

Minimum Order: 1 bags

WDet-5000TPN Total Nitrogen Online Automatic Analyzer
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SOURCE: Import-Export Bulletin Board (
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