Shanghai Botuo Exhibition Cloud Tour: Water Quality Monitoring Equipment and Industry Application Guide

1、 Exhibition Background: Highlights of the Qingdao Water Conference

2、 Core exhibit one: Multi parameter analyzer - the "main force" of integrated monitoring

（1） Conventional water quality multiparameter: Water treatment plants and secondary water supply

1. Floor standing cabinet multi parameter instrument：
   Featuring "multi parameter integration+high cost-effectiveness", it can integrate residual chlorine, turbidity PH、 Conventional parameters such as conductivity, dissolved oxygen, temperature, etc. (supporting customization of 3-6 parameters, the more probes there are, the higher the cost-effectiveness). Taking Shanghai Waterworks as an example, it can stably monitor the effluent turbidity (usually 0.15-0.2 NTU) and residual chlorine (0-2mg/L). The interface intuitively displays real-time curves and historical data for 6 parameters (one stored every 30 seconds, with adjustable storage intervals). It supports 485 communication and 4-20mA signal output, making it easy to access the central control system.
   Humanized structural design: Above the waistline is the electronic unit (motherboard, display screen), below the waistline is the waterway system, and the inlet end is equipped with dual valves (flow meter valve+main valve). The drainage should be lower than the equipment drainage outlet to avoid backflow; The sensor is designed as a split type digital device, which can be disassembled and maintained separately without the need for overall shutdown.
2. Secondary water supply multi parameter instrument：
   For the smart pump room scenario, integrate pressure, flow PH、 Conductivity and other parameters are used to solve the problem of insufficient water pressure in high-rise water supply. The device supports wall mounted installation, is dust-proof and splash proof, and the display screen should avoid direct sunlight (LCD screen is prone to aging). It can monitor water pressure in real time and link with the secondary pressurization system to ensure stable water supply for top-level users.

（2） Special indicator multi parameter instrument: monitoring of raw water and industrial water use

1. TOC+COD integrated multi parameter instrument：
   Specially designed for raw water (groundwater, river water, reservoir water) and pharmaceutical production water, integrating TOC (0-100mg/L range) and membrane COD detection functions, compact size for easy on-site installation. For example, when monitoring river water, the organic pollution situation can be quickly analyzed, and the data can be directly used for adjusting the raw water treatment process; If used in pharmaceutical factories, it can also be paired with an ultra pure water TOC detection module (requiring water conductivity ≤ 6 μ S, the purer the water, the better).
2. Pollution Source Multi Parameter Instrument (Third Generation)：
   The new wall mounted design features a novel appearance and a simple internal structure, supporting total nitrogen, total phosphorus, and ammonia nitrogen PH、 Heavy metal parameter detection, low consumable cost, and easy maintenance in the later stage. Compared to the old model, it adopts a raft structure instead of the 9-building design, which greatly improves stability and is suitable for scenarios such as industrial wastewater discharge outlets and industrial park monitoring stations. Certificates have been gradually issued, meeting environmental compliance requirements.

3、 Core exhibit 2: TOC detector - an "organic carbon monitoring expert" covering multiple industries

1. Conventional raw water TOC analyzer (0-100mg/L)：
   The focus of this exhibition is on the model, which is used for monitoring raw water, river water, and groundwater in water plants. It can quickly determine the degree of organic pollution in raw water and provide data support for pretreatment processes. It does not require complex accessories and is easy to operate and use.
2. Ultra pure water TOC analyzer (semiconductor/pharmaceutical specific)：
   For ultra pure water testing in the semiconductor and pharmaceutical industries, it is required that the conductivity of the tested water should be ≤ 2 μ S (maximum not exceeding 6 μ S), the range should be adapted to the low concentration requirements of ultra pure water, and it can accurately capture ppb level organic carbon to avoid TOC exceeding the standard and affecting chip production or drug quality.
3. Combustion TOC analyzer：
   Using chemical reagent method, slightly larger in size (requires nitrogen cylinder), suitable for high concentration organic carbon detection, such as industrial wastewater, high pollution raw water and other scenarios. Compared to conventional TOC meters, it has higher oxidation efficiency and can meet the precise analysis of complex water samples. It is the core equipment for organic pollution monitoring in industries such as chemical engineering and printing and dyeing.

4、 Core exhibit three: Sensor series - "precise sensing unit" for water quality monitoring

（1） PH electrode: Suitable for full field view, leak proof and durable

1. Regular versionWaterproof glass PH electrode, chemical VP joint PH electrode, pure water bayonet PH electrode (for ultra pure water), meet the needs of industries such as tap water, chemical, and electronics;

2. Special styleExplosion proof PH electrode (EXA300 model, used in explosion-proof areas such as petrochemicals), high-temperature PH electrode, desulfurization specific PH electrode, to solve the problem of acid-base monitoring under special working conditions;

3. technical advantageThe instrument is integrated with a dual high resistance design, and the sensor only requires 4 wires (2 for temperature compensation and 2 for reference/measurement), without the need for separate solution grounding. It is stable and accurate in the pure water industry.

（2） Dissolved oxygen sensor: mainly based on fluorescence method, easy to maintain

1. Fluorescence dissolved oxygen analyzerMaintenance free, no need to add electrolyte, simple cleaning is sufficient, suitable for scenarios such as sewage, aquaculture, and surface water, with costs decreasing year by year, gradually replacing traditional membrane methods;

2. Membrane dissolved oxygen electrodeTraditional sewage dissolved oxygen monitoring requires about 3 months to fill the electrolyte and polarize for more than 2 hours, making maintenance cumbersome. Currently, it is less widely used and only suitable for low budget or old system renovation;

3. Pure water dissolved oxygen sensorSpecialized for boiler water and ultrapure water in power plants, with leak proof design to ensure accurate detection in low oxygen environments. It is used in conjunction with a circulation cup and compatible with sampling rack installation.

（3） Conductivity sensor: dual selection of contact and induction

1. contact-typeStainless steel material, available with or without threads, with constants of 0.01, 0.1, and 1.0 to choose from, removable and washable, suitable for low conductivity scenarios such as tap water and pure water;

2. inductiveFlanged structure, digital chip design, avoiding liquid corrosion, suitable for high concentration saltwater (such as seawater), chemical solutions and other scenarios, measuring MS level conductivity, low concentration water (such as Wahaha, Nongfu Spring) cannot be detected;

3. Acid base concentration sensorThree materials are available for selection, supporting custom measurement modes (two points at the same temperature, four points at different temperatures). It can measure the concentration of NaOH, H2SO4 and other solutions, with units displayed as percentages, g/L, mmol/L optional, suitable for chemical concentration control scenarios.

（4） Turbidity sensor: intelligent sewage discharge, stable data

1. Multi parameter integrated modelIntegrated with parameters such as residual chlorine and pH, the waterway is equipped with dual grilles (bubble discharge+stable flow), with 2 inlet pipes and 3 outlet pipes to ensure stable water flow;

2. Single parameter new modelEquipped with an automatic discharge solenoid valve, it can be set to discharge water regularly for 1-3 days to avoid sedimentation of sediment and solid particles affecting the detection; Data locking during discharge, updated after 5 minutes of water supply to prevent data distortion and adapt to high turbidity scenarios such as raw water and sewage.

3. 
   

5、 Technical highlights and installation and maintenance points of exhibits

（1） Core technological advantages

1. modular designMulti parameter instruments and sensors adopt a split structure, and individual component failures can be replaced separately, with low maintenance costs. For example, digital sensors can be disassembled and sent back to the factory for calibration, without the need for complex on-site operations;

2. Leak prevention and safety designThe boiler water sensor and pure water dissolved oxygen sensor in the power plant are both treated for leak prevention; Explosion proof sensors meet the requirements for use in hazardous areas; The combustion method TOC instrument is equipped with multiple overheat protections;

3. Intelligent functionsTurbidity sensor automatically discharges pollutants and locks data; Multi parameter instrument real-time curve, historical data storage (supporting USB backup), alarm recording (such as low residual chlorine warning), improve monitoring efficiency.

（2） Installation and maintenance precautions

1. Waterway installationThe drainage outlet of the multi parameter instrument should be lower than the equipment to avoid backflow; Flow type equipment is "low inlet and high outlet" (inlet at the lower end and outlet at the upper end);

2. Sensor protectionThe pH electrode does not need to be soaked in saturated potassium chloride protective solution in the short term; Avoid direct sunlight on the display screen to prevent LCD aging;

3. Calibration and maintenanceRegularly change the electrolyte and polarization of the membrane dissolved oxygen electrode; The digital sensor can be disassembled and cleaned, and the sensing surface needs to be frequently cleaned for high pollution water quality.

6、 Summary: The Industry Value and Future Trends of Collecting Exhibits