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Shandong Fengtu IOT Technology Co., Ltd

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Micro water quality monitor

Micro water quality monitor

Model：FT-WMSM

Brand：fengtu

Micro water quality monitor is an on-site automatic water quality monitoring laboratory set up in rivers, lakes, reservoirs, coastal sea areas and other watersheds.
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Product details

1.Micro water quality monitor product introduction:

In response to the country's strategic policies on strengthening environmental protection, maintaining natural ecological balance, and promoting sustainable development of the national economy, and based on market needs, our company independently developed and produced the outdoor small-scale automatic water quality monitoring station FT-WMSM, which combines the methods specified in the national standard with advanced computer technology to achieve full automation of the measurement process. It can be widely used in surface water quality monitoring of rivers, lakes, etc.

The factors that cause eutrophication of surface water are mainly chemical factors such as N, P, organic matter, HN4- and other chemical factors in the water body. Therefore, monitoring chemical indicators such as total phosphorus, total nitrogen, ammonia nitrogen, chemical oxygen demand, and permanganate index in surface water has become a necessary task. It is necessary to monitor the five conventional parameters (dissolved oxygen, turbidity, conductivity, temperature, and pH) simultaneously to comprehensively reflect the water environment indicators.

2. Micro water quality monitor monitoring principle:

This outdoor water station adopts an integrated design principle, including a water collection and distribution system, a detection unit (five measurement modules for total phosphorus, total nitrogen, chemical oxygen demand, permanganate index, ammonia nitrogen, and five conventional parameters), a quality control unit, and an auxiliary unit (waste liquid collection, lightning protection, air conditioning, etc.). The core unit is the detection unit, and the total phosphorus, total nitrogen, chemical oxygen demand, permanganate index, and ammonia nitrogen strictly follow the chemical analysis methods specified in the national standard. The conventional five-parameter indicators (dissolved oxygen, conductivity, turbidity, temperature, and pH) are measured using a multi-electrode integrated method.

3. Main specifications and standards for Micro water quality monitor:

According to the design documents, equipment, materials and construction must meet the requirements of the current engineering construction standards and specifications of the People's Republic of China and provinces, autonomous regions, municipalities directly under the Central Government or industries. The technical standards and specifications followed by this project are as follows:

(1) Technical Specifications for Monitoring Total Amount of Water Pollutant Discharge

(2) "Water and Wastewater Monitoring and Analysis Methods" (4th Edition)

(3) "Environmental Water Quality Monitoring Quality Assurance Manual"

(4) Technical Specifications for Surface Water and Wastewater Monitoring (HJ/T91-2002)

(5) Technical Guidelines for River Water Quality Sampling (HJ/T52-1999)

(6) "Technical Requirements for Automatic Chemical Oxygen Demand Water Quality Analyzer" (HJ/T377-2007)

(7) "Technical Requirements for Automatic Permanganate Index Water Quality Analyzer" (HJ/T100-2003)

(8) "Technical Requirements for Automatic Ammonia Nitrogen Water Quality Analyzer" (HJ/T101-2003)

(9) Technical Requirements for Automatic Total Nitrogen Water Quality Analyzer (HJ/T 102-2003)

(10) Technical Requirements for Automatic Total Phosphorus Water Quality Analyzer (HJ/T 103-2003)

(11) Technical Requirements for pH Water Quality Automatic Analyzer (HJ/T96-2003)

(12) "Technical Requirements for Automatic Conductivity Water Quality Analyzer" (HJ/T97-2003)

(13) Technical Requirements for Turbidity Water Quality Automatic Analyzer (HJ/T98-2003)

(14) Technical Requirements for Automatic Dissolved Oxygen (DO) Water Quality Analyzer (HJ/T99-2003)

(15) Relevant national and industry standards and specifications

(16) Environmental Protection Industry Standard of the People’s Republic of China (HJ/T98-2003)

(17) Code for Design of Lightning Protection for Buildings

(18) Design Specifications for Power Supply and Distribution Systems

4. Micro water quality monitor product features:

1. Adopt integrated automatic water quality monitoring station, which can measure multiple elements at the same time;

2. Multiple analysis and detection units with low detection limit, meeting the requirements for online monitoring of surface water;

3. The water collection and distribution unit has the functions of water sample pretreatment and backwashing, with low failure rate and easy maintenance;

4. Optional UPS uninterruptible power supply to ensure that the water station completes the cleaning process in the event of a power outage;

5. Optional video surveillance equipment with real-time remote monitoring function to achieve all-round monitoring;

6. Small footprint, the whole machine footprint ≤ 2m2;

7. Equipped with waste liquid separation and waste liquid collection unit,

8. Meet the collection of waste liquid for more than two weeks; equipped with lightning protection unit to ensure stable and reliable operation of the system;

9. Intelligent constant temperature system, equipped with cabinet-type heating and cooling air conditioners, ensures that the water station operates at the specified working temperature.

5. Micro water quality monitor technical parameters:

project Total phosphorus, ammonia nitrogen, total nitrogen, chemical oxygen demand, permanganate index parameter performance indicators
Total Phosphorus Ammonia nitrogen Total Nitrogen Chemical oxygen demand Permanganate Index
Reference Standards GB11893-89 HJ/536-2009 HJ 636-2012 HJ828-2017 GB11892-89
Measuring range 0.02~2mg/L (expandable) 0.1~5mg/L (expandable) 0.1~10mg/L (expandable) 15~2000mg/L (expandable) 0.5~20mg/L (expandable)
Detection limit ≦0.01mg/L ≦0.10mg/L ≦0.1mg/L ≦15mg/L ≦0.1mg/L
drift ±5% ±5% ±5% ±5% ≦0.5mg/L
Precision ≤5% ≤5% ≤5% ≤5% ±5%
Indication error ±5% ±5% ±5% ±5% ≤5%
Voltage influence ±10% ±5% ±10% ±5% ±5%
Temperature Effect ±5% ±5% ±5% ±5% ±5%
consistency ≥90% ≥90% ≥90% ≥90% ±5%
Sampling period Time interval (20 to 9999 minutes, adjustable) and hourly measurement mode
Calibration cycle 1 to 99 days, any interval, any time, adjustable
Maintenance cycle Usually once a month, about 60 minutes each time

Micro water quality monitor conventional five parameter technical indicators:

Five parameter performance indicators
Measurement method pH Dissolved oxygen Conductivity Turbidity temperature
Glass electrode method Fluorescence quenching method Four-wire electrode method 90 degree scattered light method Thermal resistance electrode method
Reference Standards GB/T6920-86 GB/T11913-89 GB/T6908-201 GB/T13200-91 GB/T13195-91
Measuring range 0～14 0mg/L～20mg/L 0ms/m～500ms/m 0NTU～1000NTU 0～50℃
drift ±0.1pH ±0.3mg/L ±1% ±5% ——
Precision ≤0.1pH ≤5% ≤1% ≤5% ——
Indication error ±0.1pH ≤5% ±1% ±5% ——
Voltage influence ±0.1pH ≤0.3mg/L ±1% ±5% ——
Temperature compensation accuracy ±0.1pH ±0.3mg/L ±1% —— ——
Water temperature error —— —— —— —— ±0.2℃
Calibration cycle Usually twice a month
Maintenance cycle Usually once a month, about 30 minutes each time

Micro water quality monitor machine parameters:

Machine parameters
Control unit ARM9 Embedded Industrial Control System
Display unit 15-inch color touch screen control
Temperature control system Equipped with dual-purpose air conditioning
UPS voltage stabilized power supply (optional) UPS uninterruptible power supply is optional, which can complete the measurement and cleaning process in the event of a sudden power outage
Lightning protection unit Lightning protection capability
Power Requirements AC 220V±22V, 50Hz±0.5Hz
Communication interface 2-way RS485, support 4G wireless transmission
Machine power ≦2500W (including external pump, air conditioning power\maximum power during operation)
Ambient temperature (5~40)℃
Dimensions Height 1900mm×Width 1480mm×Depth 960mm
Water station weight 300kg

6. Micro water quality monitor configuration list

Serial number Product Name quantity
1 Stainless steel outdoor cabinet (including air conditioning) 1 set
2 Electrical unit (PLC, relay, circuit breaker, switching power supply, lightning protection) 1 unit
3 Display unit (including 15-inch large screen, microcomputer control program) 1 set
4 Water sampling unit (pipe, sampling pump, float) 1 set
5 Water distribution unit (electric ball valve, pipe) 1 set
6 Pre-treatment unit (flow cell, level sensor, pressure sensor) 1 set
7 Permanganate Index 1 unit
8 COD online monitor (optional) 1 unit
9 NH3N online monitor 1 unit
10 TP online monitor 1 unit
11 TN online monitor 1 unit
12 Five parameters (oxygen solution, conductivity, turbidity, temperature, pH) 1 unit
13 Data acquisition instrument 1 unit
14 Chemical reagents (240 times/month) free of charge 1 set



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