Qingdao Water Conference exhibits: Detailed explanation of multi parameter analyzer, TOC and sensor

1、 Core Background of the Exhibition: Focusing on Water Quality Monitoring, Exhibits Covering All Scenarios

2、 Exhibit 1: Multi parameter analyzer - the core equipment for integrated monitoring

（1） Conventional water quality multiparameter: exclusive for waterworks and secondary water supply

1. Floor standing cabinet multi parameter instrument

• core configurationSupport integration of 3-6 conventional parameters such as residual chlorine (0-2mg/L), turbidity (0-1NTU, usually ≤ 0.2NTU for water plant effluent), pH, conductivity, dissolved oxygen, temperature, etc. The number of probes can be customized according to needs, and the more probes, the higher the cost-effectiveness;

• Key Features1.1-meter-high integrated cabinet design, with electronic units above the waistline (including a 19 inch display screen and motherboard), capable of real-time display of various parameter curves and historical data (default storage of 1 every 30 seconds, adjustable interval); Below the waistline is the waterway system, with dual valves (flow meter valve+main inlet valve) installed at the inlet end, and the drainage end should be lower than the equipment (to avoid backflow and water leakage);

• Adaptation scenarioWater plant inlet/outlet monitoring, secondary water supply pump room (smart pump room), supports 485 communication and 4-20mA signal output, can be connected to the central control system, and achieve unmanned monitoring.

2. Wall mounted integrated multi parameter instrument

• Core strengthsHighly integrated, with a smaller volume than floor standing models, it can be directly embedded into customized customer appearances and supports monitoring of core parameters such as residual chlorine, turbidity, and pH; The sensor is designed as a digital split type, and individual sensor failures can be disassembled and maintained separately (if the conductivity sensor is damaged, the entire equipment does not need to be shut down);

• Installation precautionsThe display screen is an LCD screen and should be avoided from direct sunlight (to prevent aging and black screen); The waterway design is consistent with the floor standing design, with a "low inlet and high outlet" approach to ensure stable water flow, suitable for secondary water supply stations and small water plants with limited space.

（2） Raw water monitoring multi parameter instrument: TOC+COD dual index integration

• core configurationOn the basis of conventional parameters, it additionally integrates TOC (0-100mg/L range) and membrane COD detection functions, with a compact size suitable for rapid on-site installation;

• Application scenariosMonitoring of raw water such as groundwater, river water, and reservoir water can quickly determine the degree of organic pollution in the raw water (if TOC exceeds the standard, pre-treatment needs to be strengthened), and can also be used for primary water quality screening of pharmaceutical production water;

• Convenience of operationEquipped with automatic cleaning function, the TOC/COD sensor requires minimal maintenance, and the interface supports displaying 8 parameters on a single screen. Historical data can be backed up through a USB drive, meeting the needs of environmental monitoring data traceability.

（3） Pollution Source Multi Parameter Instrument (Third Generation New Product)

• Appearance and StructureThe new wall mounted design has a novel appearance, and the interior adopts a "raft style structure" instead of the old 9-building design, which improves stability and reduces consumable replacement costs by 30%;

• monitoring parametersSupport total nitrogen, total phosphorus, ammonia nitrogen PH、 Detection of pollution indicators such as heavy metals, suitable for industrial wastewater discharge outlets and industrial park monitoring stations;

• complianceCompliant with national environmental monitoring standards, relevant certificates have been gradually implemented, which can be directly used for environmental acceptance and pollution control. It is a key research and development achievement in the field of industrial wastewater in recent years.

3、 Exhibit 2: TOC Detector - Organic Carbon Monitoring Scheme with Full Range Coverage

（1） Conventional raw water TOC analyzer (0-100mg/L)

• Core FeaturesSimple operation, no need for complex accessories, can quickly detect the TOC content of raw water after startup, with strong data stability (repeatability error ≤ 3%);

• Adaptation scenarioMonitoring of raw water and surface water (river/reservoir water) in water treatment plants to help determine the organic load of raw water and provide a basis for adjusting pre-treatment processes such as coagulation and filtration;

• advantageHigh cost-effectiveness, suitable for bulk procurement, is a commonly used equipment in the field of municipal water treatment.

（2） Ultra pure water TOC analyzer (semiconductor/pharmaceutical specific)

• Accuracy requirementsThe conductivity of the tested water should be ≤ 2 μ S (maximum not exceeding 6 μ S), and it can accurately detect ppb level TOC (0.05mg/L), meeting the strict requirements of semiconductor ultrapure water (such as chip production water) and pharmaceutical purified water;

• technical supportAdopting high-sensitivity detectors and efficient dehydration systems to avoid the omission of trace organic carbon in water, ensuring accurate detection data, and preventing chip scrap or drug contamination caused by TOC exceeding the standard.

（3） Combustion TOC analyzer

• Detection PrincipleChemical reagent oxidation requires a nitrogen cylinder as the carrier gas, with controllable combustion furnace temperature and higher oxidation efficiency than conventional TOC meters;

• Adaptation scenarioIndustrial wastewater (such as chemical and printing and dyeing wastewater), high pollution raw water, and other medium to high concentration TOC detection can cope with complex water samples (such as those containing difficult to degrade organic compounds);

• PrecautionsSlightly larger in size, requiring reserved installation space, suitable for long-term monitoring at fixed stations, not recommended for mobile use.

4、 Exhibit 3: Sensor Series - The "Precise Perception Core" of Water Quality Monitoring

（1） PH electrode: leak proof and durable in all scenarios

1. Conventional modelWaterproof glass PH electrode (for tap water monitoring), chemical VP connector PH electrode (corrosion-resistant), pure water bayonet PH electrode (for ultra pure water), covering the basic needs of most industries;

2. special modelExplosion proof PH electrode (EXA300, used in petrochemical explosion-proof areas), high-temperature PH electrode (for power plant desulfurization scenarios), desulfurization specific PH electrode (resistant to high sulfur corrosion);

3. technological breakthroughThe instrument integrates 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 can monitor more stably in pure water scenarios and solve the pain point of "inaccurate pure water measurement" of traditional pH electrodes.

（2） Dissolved oxygen sensor: fluorescence method becomes mainstream

1. Fluorescence dissolved oxygen analyzerMaintenance free, no need to fill electrolyte, only require regular cleaning of the probe, suitable for scenarios such as sewage, aquaculture, surface water, etc; The cost has been decreasing year by year and has gradually replaced traditional membrane methods, making it a popular product at this exhibition;

2. Membrane dissolved oxygen electrodeTraditional models require electrolyte filling and polarization for more than 2 hours every 3 months, which is cumbersome to maintain and only suitable for low budget or old system renovation;

3. Pure water dissolved oxygen sensorSpecially designed for boiler water and ultrapure water in power plants, with leak proof design, paired with stainless steel circulation cups, suitable for sampling rack installation, ensuring accurate detection in low oxygen environments.

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

1. contact-typeMade of stainless steel material, with or without threads, available in constants of 0.01, 0.1, 1.0, and can be disassembled for cleaning (cleaning the inner and outer walls when the water quality is dirty), suitable for low conductivity scenarios such as tap water and pure water;

2. inductiveFlanged structure, digital chip design, avoiding direct contact of liquid with electrodes, suitable for high concentration saltwater (such as seawater) and chemical solutions (such as acid-base solutions), measuring MS level conductivity (low concentration water such as bottled water cannot be detected);

3. Acid base concentration sensorThree materials are available for selection, supporting "custom measurement mode" (two points at the same temperature, four points at different temperatures), capable of measuring the concentration of NaOH, H2SO4 and other solutions, with units displayed as percentages g/L、mmol/L， Adapt to chemical concentration control.

（4） Turbidity sensor: intelligent pollution prevention and distortion prevention

1. Multi parameter integrated modelIntegrated with residual chlorine and pH, the waterway is equipped with double grilles (foam discharge+stable flow), with 2 inlet pipes and 3 outlet pipes to ensure stable water flow, suitable for water plants and secondary water supply;

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

5、 Core advantages and industry value of exhibits

（1） Technical advantages

1. modular designThe multi parameter instrument and sensor are all split type, and individual components can be replaced/maintained separately to reduce downtime costs (if the PH electrode is damaged, only the electrode needs to be replaced, without the need to return the entire equipment to the factory);

2. Scene adaptationFrom explosion-proof, high temperature, strong corrosion to ultrapure water and highly polluted water, there are corresponding products to avoid the problem of "one size fits all" selection;

3. Intelligent functionsAutomatic discharge, data locking, curve display, alarm warning, reducing manual intervention and improving monitoring efficiency.

（2） Industry value

1. Municipal fieldAssist water plants and secondary water supply stations in achieving stable water quality monitoring, ensuring the safety of residents' water use;

2. industrial sectorProvide compliance monitoring solutions for semiconductors, pharmaceuticals, power plants, and chemicals to reduce the risk of product scrap (such as chip scrap caused by excessive TOC in semiconductor ultrapure water);

3. environmental protection fieldPollution source multi parameter instrument and TOC instrument meet the needs of wastewater discharge monitoring, help enterprises achieve standard discharge, and respond to environmental protection policies.

6、 Follow up updates and contacts