Multi parameter water quality online monitoring instrumentIntroduction: The water quality of secondary water supply is more prone to pollution compared to raw water supply. The safety and reliability of secondary water supply have always been widely concerned by residents. In response to frequent incidents of secondary water supply pollution, the company has designed a multi parameter water quality online monitoring system,The monitoring system consists of online water quality detection components as the core, based on wireless communication networks, and comprehensively utilizing technologies such as automatic measurement, automatic control, computer applications, databases, wireless communication, and network engineering. The secondary water quality monitoring and management software is used to achieve the monitoring and management of secondary water qualitypHThe monitoring of environmental factors such as algae and the remote collection and transmission of data, coupled with real-time monitoring of secondary water quality and the establishment of an emergency decision-making platform, can provide early warning and forecasting of secondary water pollution, prevent polluted water from continuing to flow to residential users, and effectively protect residents' health.

1Multi parameter water quality online monitoring instrumentFeatures:

1Detect equipment parameters such as voltage, current, frequency, loading, control mode, as well as pressure, flow rate, water level, temperature, chromaticity, turbidity, etcPHValueTDSValue and other process parameters

2Start stop of remote control equipment and switching of electric valves

3Supports wired networks such as fiber optics, network communication, and real-time video monitoring3G\\4Gcommunication

4Real time online detection of residual chlorine in water qualityPHValue, turbidity and other data can be added according to user needs, including water temperature and levelTDSparameters

5Can add water quality abnormality alarm function or same level storage function and remote control

IIResidual chlorinePHValue and turbidity technical parameters

2.1Residual chlorinesensor

This product is a device for measuring residual chlorine concentration (hypochlorous acid, hypochlorite ion concentration) in water bodies. The use of a three electrode system has the advantages of high measurement accuracy, long working life, and no need for frequent calibration. This product is suitable for automatic dosing of circulating water, chlorine control in swimming pools, and accurate measurement of residual chlorine content in water solutions for drinking water treatment plants, drinking water distribution networks, swimming pools, and hospital wastewater.

2.2 Features

The measurement range of residual chlorine is0-20mg/L, Resolution0.01mg/L.

n The non membrane constant voltage sensor used does not require replacement of the membrane and medication.

n 3/4The upper and lower installation thread design is convenient for installation;

n The equipment adopts wide voltage DC power supply10~30VEither way.

2.3 Equipment Technical Parameters

2.4Turbidity transmitter

RS -um-n01It is a basic conventional water quality monitoring digital turbidity transmitter; Adopting mature foreign methods90°Scattering light principle, using infraredLEDDesign methods for light sources and fiber optic transmission paths; Internally added filtering algorithm, with strong resistance to external light. Built in temperature transmitter with automatic temperature compensation, suitable for long-term online monitoring environment use.

2.5Features

n Turbidity measurement range0~200NTU；0~1000NTU; 0~4000NTU.

n waterproof ratingIP68.

n Filter algorithm, strong resistance to external light interference, automatic temperature compensation, suitable for long-term online detection environments.

n RS485Communication interface:MODBUS RTUThe communication protocol facilitates connection to computers for monitoring and communication.

n ModBusThe communication address can be set and the baud rate can be modified.

n The equipment adopts wide voltage power supply and DC10~30VEither way.

2.6Technical Specifications

2.7 PHValue sensor

This product is a measuring solutionPHEquipment with values (hydrogen ion concentration index, pH),Optional automatic temperature compensation function. This product is suitable for industrial wastewater, domestic wastewater, agriculture, aquaculture industry and other scenarios in non corrosive weak acid and weak alkali environments.

2.8Features

n pHmeasurement range0~14pHresolution0.01pH.

n Scope of application for automatic temperature compensation0~80℃。

n Optional automatic temperature compensation, without temperature compensation equipment, the default temperature is25℃。

n The equipment adopts wide voltage DC power supply10~30V（0~10VVoltage output requiredDC24VPower supply).

2.9 Equipment Technical Parameters

3、 Precautions and Maintenance

The equipment itself generally does not require daily maintenance,Please do not open it for self repair in case of obvious malfunction,Contact us as soon as possible!

◆There is an appropriate amount of soaking solution in the protective bottle at the front end of the electrode, and the electrode tip is soaked in it to maintain the activation of the glass bulb and liquid interface. When measuring, loosen the bottle cap, remove the electrode, and rinse with pure water before use.

◆Preparation of electrode soaking solution: TakepH4.00One packet of buffering agent,dissolve in250Milliliters of pure water,plus56Analytical purity ,Heat the electric furnace appropriately and stir until * dissolves. It can also be used3.3M Soak in solution and prepare as follows:25Analytical purity dissolve in100It is ready in milliliters of pure water.

◆The glass bulb at the front end of the electrode should not come into contact with hard objects, as any damage or scratching will cause the electrode to fail.

◆Before measurement, the bubbles inside the electrode glass bubble should be thrown away, otherwise it will affect the measurement. During measurement, the electrode should be stirred in the measured solution and placed still to accelerate the response.

◆Clean the electrodes with deionized water before and after measurement to ensure accuracy.

◆PHAfter long-term use, the electrode will undergo passivation, which results in a decrease in sensitivity gradient, slow response, and inaccurate readings. At this time, the bulb at the bottom of the electrode can be used0.1Msoak24Hour by hour（0.1MPreparation:9Dilute milliliters of hydrochloric acid with distilled water to1000Milliliters), then use again3.3M Solution immersion24Hour, ifpHThe electrode passivation is quite severe, use0.1MIf hydrochloric acid soaking has no effect, it can be usedpHThe electrode bulb end is immersed in4%HFIn (*)3-5Wash with pure water in seconds, then3.3M Soak in solution24Hour to restore its performance.

◆Glass bulb contamination or liquid interface blockage,It can also cause electrode passivation. At this time, appropriate solution cleaning should be carried out according to the properties of the pollutant, as shown in the table below (for reference).

Contaminants: Cleaning agent:

Inorganic metal oxides below1MDilute acid

Organic oils and fats Dilute detergent (weakly alkaline)

Resin polymer material Alcohol, acetone

Protein erythrocyte sediment Acidic enzyme solution

Pigment substances Dilute bleach, hydrogen peroxide

The electrode has a service life of about one year, and should be replaced with a new electrode in a timely manner after aging.

4Multi parameter water quality online monitoring instrumentInstallation and debugging

1.Equipment installation：

1.1 Environmental Requirements

The room where this equipment is installed and placed should be dry and well ventilated. It should not be installed in cold, damp, direct sunlight, or areas with a lot of sand and dust, and should not be installed in environments with chemical corrosion.

Ensure that there are no flammable, corrosive gases or conductive dust around this device during operation, otherwise it may cause some degree of damage.

1.2Installation location

The distance between the equipment and the outer wall of the room should be at least50cmThe heat dissipation distance and necessary maintenance distance.

1.3Power connection

The power supply for this device is single-phase AC power, with a voltage of220V±10%, frequency50Hz±1HzPlease connect the power cord that comes with the device to the on-site switchgear and ensure proper grounding. The power should be controlled by an air switch that meets the equipment's usage requirements.

2.2Debugging of equipment

1Please connect the drainage water according to the installation diagram before using the device,Wait for the flowing water to flow out and ensure that there is no water leakage in the equipment before connecting the power supply.

2schematic diagram