The raw material used in dissolved oxygen meter is related to the production technology which differentiates our products from others'. It cannot be unveiled here. The promise is that the source and quality of raw material are reliable. We have established long-run partnerships with several raw material suppliers. The controlling of quality of raw materials is as important as the controlling of quality of finished products.

Our well-equipped factory guarantees our made water analyzer to be produced in a bulk production. We will show you the dissolved ozone analyzer series that is most popular with customers. Strict internal quality control system to ensure that products meet international standards. It supports multi-channel measurements in water samples. Strong technical force has been formed during Shanghai Boqu Instrument Co., Ltd.'s decades of years of development. Its shell is made to be highly wear-resistant.

Our goal is to become a first-class manufacturing enterprise of dissolved oxygen meter. Call now!

Every customer is satisfied with the Online Conductivity Meter under Boqu. The high value of the product relative to the price - the function of quality and price is ensured. Time issues such as product availability, availability of sales assistance and delivery time are perfectly addressed.

Shanghai Boqu Instrument Co., Ltd. is a specialist in the creation of portable water quality meter, all along the value chain from product development to manufacturing. Boqu Instrument's pressure controller is various in types and styles to meet the different needs of customers. Special sizes can be customized in Boqu Instrument. The product has achieved the maintenance-free performance. Its quality is inspected and checked right from raw materials to the final production. The product is popular for its strong environment adaptability.

We always keep on positive aspiration. We insist on devoting ourselves to serving our clients and strive for recognition among the leaders in this industry around the globe.

Chemical Oxygen Demand COD. is the amount of oxidant consumed by the treatment of water samples with strong oxidants under certain conditions. The presence of water is a reducing substance. The reducing substances are mainly organic substances. Chemical oxygen demand COD. is a comprehensive indicator to measure the degree of organic pollution in water bodies, and it is also an important content in environmental monitoring. The basic principle is to prepare a series of standard samples with the standard substance sodium hydrogen phthalate. The standard samples of known concentration are digested with human digestive juice to obtain the oxygen consumption of each standard sample. In the COD absorbance coordinate system instrument method, the standard curve is drawn using the small square multiplication method. After measuring the absorbance of the water sample with unknown concentration to be measured, the COD value can be obtained from the standard curve. Precautions for the use of multi-parameter water quality analyzer:

1. Daily inspection includes checking whether the instrument is working normally, whether the pipeline is unobstructed and leaking, and cleaning the instrument, especially the rotating parts and vulnerable parts, to prevent leakage, corrosion, and damage to the instrument.

2. Reagent replacement Potassium dichromate and silver sulfate are very corrosive reagents, which are volatile and absorb water at the worksite and should be replaced regularly. The replacement period depends on the conditions of use, generally at least 3 months.

3. Protective maintenance As the peristaltic pump tube absorbs strong corrosives, it should be replaced every 3 months. The measuring room and reaction room shall be thoroughly inspected and overhauled at least once a year.

4. Daily calibration

Except when the automatic zero calibration period is programmed, in use, replace the reagent or protect and repair the zero standard solution to be calibrated. Using distilled water as the zero point calibration laboratory fluid, the same method in the calibration measurement cycle, the new calibration zero retention parameters, and the calibration curve are prepared.

5. Factory parameter setting

Although the original working curve has been set when the instrument leaves the factory, the original working curve is often not suitable for any monitoring occasions due to the difference in the use place. The working curve should be checked regularly.. COD prepared in the laboratory. The standard solution can be checked, and the calibration process is the same as the measurement cycle. After checking, the interface parameters can be changed and the working curve can be calibrated.

6. Installation environment

In order to ensure that the COD online analyzer is installed at a constant humidity temperature, it is necessary to install an air conditioner, if necessary, heating, cooling, and dehumidification facilities. When using an independent power supply.

7. Instrument pause

When the instrument is out of service, it should be thoroughly cleaned with distilled water first, then drained, and then the inlet and outlet valves and power supply should be closed in turn. When restarting, it should be thoroughly cleaned with new reagents. The working curve should be more accurate.

How Electromagnetic Flow Meter Works?

Subtitles:

1. Introduction to Electromagnetic Flow Meters

2. The Basic Principles of Electromagnetic Flow Measurement

3. Components and Working of Electromagnetic Flow Meters

4. Applications of Electromagnetic Flow Meters

5. Advantages and Limitations of Electromagnetic Flow Meters

Introduction to Electromagnetic Flow Meters

Electromagnetic flow meters, also known as magmeters, are widely used in various industries for accurate measurement of liquid flow rates. They utilize Faraday's Law of electromagnetic induction to measure the flow of conductive fluids. The primary advantage of electromagnetic flow meters is that they can measure flow in both directions, making them suitable for applications where the flow direction can change. This article explores the working principles, components, applications, advantages, and limitations of electromagnetic flow meters.

The Basic Principles of Electromagnetic Flow Measurement

Electromagnetic flow meters operate based on Faraday's Law of electromagnetic induction, which states that when a conductor moves through a magnetic field, a voltage is induced across the conductor. In the case of an electromagnetic flow meter, the fluid acts as the conductor, and the magnetic field is generated by the meter's coils. The flow meter consists of a pipe with electrodes placed opposite each other on the inner surface of the pipe. The flowing liquid acts as the conductor, and as it passes through the magnetic field created by the coils, a voltage is induced. By measuring this voltage, the flow rate of the fluid can be determined.

Components and Working of Electromagnetic Flow Meters

Electromagnetic flow meters consist of several essential components. These include a flow tube, coils, electrodes, a transmitter, and a display. The flow tube is constructed from non-magnetic materials to minimize interference with the magnetic field. The coils generate the electromagnetic field, typically produced by applying an alternating current to them. The electrodes are used to measure the induced voltage and are generally made of corrosion-resistant materials. The transmitter processes the signals from the electrodes, converts them into flow information, and sends them to the display or control system.

When a conductive fluid flows through the flow tube, its velocity and volume cause the magnetic field to change, inducing a voltage in the fluid. The induced voltage is picked up by the electrodes, which transmit the signal to the transmitter. The transmitter then processes this signal, compensates for various factors such as temperature and fluid properties, and provides accurate flow rate measurements. The information can be displayed locally or transmitted to a central control system for further analysis and monitoring.

Applications of Electromagnetic Flow Meters

Electromagnetic flow meters have a wide range of applications across various industries, including water and wastewater treatment, chemical processing, food and beverage, pharmaceuticals, and oil and gas. Due to their ability to handle conductive fluids with a wide range of viscosities and corrosive properties, they are suitable for measuring the flow of liquids such as water, acids, bases, slurries, and pulp. Their versatility and accuracy make them indispensable in industries where precise flow measurement is crucial for process control and efficiency.

Advantages and Limitations of Electromagnetic Flow Meters

Electromagnetic flow meters offer several advantages over other flow measurement techniques. Firstly, they have no moving parts, minimizing the need for regular maintenance and reducing the risk of mechanical failure. Secondly, they provide accurate measurements even in turbulent flow conditions. Additionally, electromagnetic flow meters can be installed in a wide range of pipe sizes and orientations. Furthermore, they are not affected by changes in density, viscosity, or temperature, ensuring reliable readings.

Despite their many advantages, electromagnetic flow meters also have limitations. They require a conductive fluid to function properly, meaning they cannot measure non-conductive fluids. The flow meter also requires a power supply to generate the magnetic field, which may be a limitation in certain remote or hazardous locations. Finally, electromagnetic flow meters can be more expensive than other flow meter types, making cost a consideration for some applications.

In conclusion, electromagnetic flow meters are highly versatile and accurate instruments used to measure the flow rates of conductive fluids. They operate based on Faraday's Law of electromagnetic induction and find applications in a wide range of industries. By understanding their working principles, components, applications, advantages, and limitations, professionals can make informed decisions regarding the integration of electromagnetic flow meters into their systems.

How to Maintain Your ORP Meter for Accurate Results

Maintaining your ORP (Oxidation-Reduction Potential) meter is essential to ensuring you receive accurate results when testing water. ORP meters are commonly used in swimming pools, aquariums, and other water treatment systems to measure the cleanliness and quality of the water. To maintain the accuracy of your ORP meter, it is important to follow a regular maintenance routine. In this article, we will discuss the steps you can take to maintain your ORP meter for precise and reliable results.

Understanding the Basics of ORP Meters

Before discussing maintenance tips, it is important to understand the basics of ORP meters. ORP is a measure of the cleanliness and quality of water based on its oxidation-reduction potential. This measurement provides valuable insight into the effectiveness of water treatment systems and the presence of contaminants. ORP meters consist of a probe that is inserted into the water and a digital display that shows the ORP reading. By maintaining your ORP meter, you can ensure that it continues to provide accurate readings and reliable data for water quality management.

To get accurate results from your ORP meter, it is essential to understand how the meter works and the factors that can affect its performance. The probe of the ORP meter contains a special electrode that reacts with the water to measure its ORP. Over time, the electrode can become contaminated or worn out, leading to inaccurate readings. Additionally, exposure to extreme temperatures or chemicals can also impact the accuracy of the meter. By understanding these factors, you can take the necessary steps to maintain your ORP meter and ensure the reliability of its results.

Regular Cleaning and Calibration

One of the most important maintenance tasks for your ORP meter is regular cleaning and calibration. Proper cleaning of the probe electrode is essential to remove any buildup or contaminants that can affect its accuracy. To clean the probe, you can use a soft brush or cloth to gently scrub the electrode and remove any debris. It is important to use only mild cleaning solutions recommended by the manufacturer to avoid damaging the electrode. Additionally, calibration of the ORP meter is necessary to ensure that it provides accurate readings. Calibration involves adjusting the meter to match a known standard solution with a specific ORP value. Most ORP meters come with calibration solutions and instructions for the calibration process. By regularly cleaning and calibrating your ORP meter, you can maintain its accuracy and reliability over time.

Storage and Handling

Proper storage and handling of the ORP meter are also essential for maintaining its accuracy. When not in use, the meter should be stored in a clean and dry environment to protect the probe from damage or contamination. It is important to avoid exposing the meter to extreme temperatures or direct sunlight, as these can affect its performance. Additionally, the probe should be handled with care to avoid any physical damage that can impact its accuracy. By following proper storage and handling practices, you can prolong the lifespan of your ORP meter and ensure its continued reliability.

Electrode Maintenance

The electrode of the ORP meter is a critical component that requires regular maintenance to ensure accurate results. Over time, the electrode can become fouled or coated with contaminants from the water, leading to inaccurate readings. To maintain the electrode, it is important to follow the manufacturer's recommendations for cleaning and maintenance. Some meters may require the replacement of the electrode or the use of special cleaning solutions to remove buildup. By properly maintaining the electrode, you can ensure that your ORP meter continues to provide precise and reliable results.

Regular Testing and Monitoring

In addition to regular maintenance, it is important to conduct frequent testing and monitoring of your ORP meter to ensure its accuracy. By testing the meter against known standard solutions, you can verify its performance and identify any issues that may affect its accuracy. Additionally, monitoring the trends and fluctuations in the ORP readings can provide valuable insight into the effectiveness of water treatment systems and the quality of the water. By staying proactive and vigilant in testing and monitoring your ORP meter, you can identify and address any issues that may impact its accuracy.

In summary, maintaining your ORP meter is essential to ensuring accurate and reliable results when testing water quality. By understanding the basics of ORP meters, regularly cleaning and calibrating the meter, properly storing and handling it, maintaining the electrode, and conducting regular testing and monitoring, you can maintain the accuracy of your ORP meter over time. By following these maintenance tips, you can continue to rely on your ORP meter for precise measurements and valuable data for water quality management.