QTLD series electromagnetic flowmeterDetailed product description：

1、 Technical principles
The QTLD series electromagnetic flowmeter is suitable for flow detection of various conductive liquids and is an essential instrument in flow detection engineering. Electromagnetic flowmeter is an intelligent electromagnetic induction flow meter, which is based on the measurement principle of Faraday's law of electromagnetic induction. When a conductive liquid flows through a QTLD electromagnetic flowmeter, an induced electromotive force is generated in the conductor.

2、 Overview
The QTLD electromagnetic flowmeter is designed according to JB/T9248-1999 "Electromagnetic Flowmeters". Suitable for flow measurement of conductive liquids with conductivity greater than 5 μ s/cm; The fully intelligent flowmeter developed using the latest advanced technology at home and abroad has taken a great step forward in measurement accuracy, reliability, stability, functionality, and lifespan, which is greatly different from other old-fashioned analog or non intelligent electromagnetic flowmeters. The QTLD electromagnetic flowmeter is a flowmeter that integrates intelligence, small and lightweight design, multifunctionality, high precision, and high reliability. The QTLD electromagnetic flowmeter adopts a backlit wide temperature dot matrix LCD display, with all displays in Chinese. It has multiple functions and is practical, especially convenient for users to operate, reducing unnecessary trouble and errors caused by English menus similar to electromagnetic flowmeters. Moreover, due to its unique principles and performance, it can achieve on-site debugging free and easy installation.
The QTLD electromagnetic flowmeter has fast delivery, low price, easy maintenance, and a long-term service life of over 15 years.
The QTLD electromagnetic flowmeter has a complete range of varieties and specifications: small caliber electromagnetic flowmeters with measuring diameters as small as DN10, submersible electromagnetic flowmeters with IP68 fully sealed packaging technology, all stainless steel anti-corrosion electromagnetic flowmeters specifically suitable for acidic and alkaline corrosion environments, and large caliber electromagnetic flowmeters with segmented measuring diameters of DN1000 and above for large pipelines.
Electromagnetic flow meters have a wide range of applications. While meeting on-site monitoring and display requirements, they can also output standard current signals (4-20mA) for recording, regulating, and controlling purposes; Can be widely used for liquid flow measurement of conductive materials in process pipelines in industries such as chemical, environmental protection, textile, metallurgy, mining, pharmaceuticals, papermaking, water supply, food, sugar, brewing, etc; In addition to measuring general conductive liquids, it can also measure the flow rate of conductive liquid-solid two-phase flow, high viscosity liquids, salts, strong acids, strong bases and other liquids according to the special needs of users.

3、 Technical features
1. Suitable for liquid flow detection with conductivity greater than 5 μ s/cm. Changes in conductivity do not affect performance changes
2. Electromagnetic flow meters have long-term high measurement accuracy and are actually not affected by fluid physical properties
3. Easy to put into operation, the flowmeter is automatically set within the range of 0-10m/s, without the need to change the measurement range
4. All components in contact with the tested medium have good corrosion resistance and wear resistance, with a wide range of applications
5. There are no movable parts or flow blocking components in the pipeline, and there is almost no additional pressure loss during measurement
6. The measurement results are independent of physical parameters such as flow velocity distribution, fluid pressure, temperature, density, viscosity, etc
7. On site, the range can be modified online according to the actual needs of the user
8. High definition backlit LCD display, fully Chinese menu operation, easy to use, simple to operate, easy to learn and understand
9. All digital processing, strong anti-interference ability, reliable measurement, high accuracy, flow measurement range can reach 150:1
10. There are three integrators inside that can display the forward cumulative and reverse cumulative amounts, as well as the difference cumulative amount. There is also a non power down clock inside that can record the power down time
11. Capable of outputting communication signals such as 4-20mA, RS485, RS232, Hart, and Modbus
12. Equipped with self checking and self judging functions
13. The electromagnetic flowmeter is easy to use. After installation, simply connect the power supply and no other operation is required to output standard signals, making it convenient for non professionals to use. No mechanical movable parts, no maintenance required during normal operation

4、 Technical parameters
1. Measurable pipe diameter: Pipeline PTFE lining: DN10~DN600 Pipeline rubber lining: DN40~DN1200 Note: Special specifications can be customized
2. Accuracy level: Pipeline type: 0.5 level, 1.0 level
3. Temperature of the tested medium:
Ordinary rubber lining: -20 to+60 ℃; High temperature rubber lining: -20 to+90 ℃
PTFE lining: -30 to+100 ℃; High temperature PTFE lining: -30 to+180 ℃
4. Rated working pressure:
DN10—DN65：2.5MPa DN80—DN150：1.6MPa
DN200—DN1200：1.0MPa DN700—DN3000：0.6MPa
Special order: 6.3, 10MPa
5. Output signal and load resistance: 4-20mADC, 0-500 Ω
6. Electrode materials: including molybdenum stainless steel, titanium (Ti), tantalum (Ta), Hastelloy (HB), etc
7. Protection level: Submersible type: IP68, others: IP65
8. Power supply: 220VAC
9. Straight pipe length: Pipeline type: upstream ≥ 5DN, downstream ≥ 2DN
10. Connection method:
The electromagnetic flowmeter is installed in a pipeline manner, and flange connections are used between it and the piping. The size of the vertical connection should comply with the provisions of GB9119-88

5、 Application Fields
Due to its unique advantages, the QTLD electromagnetic flowmeter is widely used in various industrial fields such as chemical fiber, food, paper, sugar, mining, water supply and drainage, environmental protection, steel, petroleum, pharmaceuticals, etc. It is used to measure the volume flow rate of conductive fluid media such as acids, alkalis, salt solutions, mud, slurry, paper pulp, coal water slurry, corn slurry, fiber slurry, syrup, lime milk, sewage, cooling raw water, water supply and drainage, saltwater, hydrogen peroxide, beer, wort, various beverages, black liquor, etc