• Sulfuric acid flowmeterInstallation method:
  1. The heating system should install filters at the entrance of the building. Clean the system pipelines before heating to prevent debris from blocking the heat meter during pipeline installation. The sensor is installed vertically (with fluid flowing from bottom to top). In this position, when the liquid is not flowing, solid substances settle while oil substances float up and do not adhere to the electrode. If installed horizontally, it is necessary to ensure that the pipeline is filled with liquid to avoid measurement accuracy being affected by air pockets;
  2. The inner diameter of the pipeline should be consistent with the inner diameter of the sensor to avoid throttling phenomenon;
  3. The installation environment should be kept away from strong magnetic field equipment to prevent interference. (such as engines, transformers, radio transmitters, electrolytic cells, or other places that cause electromagnetic interference);
  4. The electromagnetic heat meter can be installed on the inlet pipe or the return pipe, and the installation position should be convenient for checking the meter. The upstream of the sensor should have a straight pipe length of not less than 5DN. If there is a non fully open gate or regulating valve upstream, the length of the straight pipe connecting the gate valve and the sensor should be increased to 10DN, and the downstream straight pipe length is generally not less than 3DN;
  5. The maximum length of the connecting cable between the sensor and the converter is 100;
  6. When using electrical welding, the weld must be kept away from the sensor to prevent damage to the lining due to overheating of the sensor or flying of welding slag;
  7. The cable length of the temperature sensor is 4 meters, and the position of the return water temperature sensor and the position of the heat meter cannot exceed the length of the cable. If it exceeds, an agreement can be reached for supply;
  8. The grounding wire diameter of the electromagnetic thermal energy meter should not be less than 5.5mm2, and it should be as short as possible, and avoid common grounding with other equipment (it is recommended to use separate grounding).
• 7、 Precautions during installation.
  1. The axis of the non measuring electrode must be approximately horizontal;
  2. The measuring pipeline must be completely filled with liquid;
  3. There should be a minimum of 5 * D (D is the inner diameter of the flow meter) straight pipe section in front of the flow meter, and a minimum of 3 * D (D is the inner diameter of the flow meter) straight pipe section at the back;
  4. The flow direction of the fluid is consistent with the arrow direction of the flowmeter;
  5. Vacuum inside the pipeline can damage the lining of the flowmeter, so special attention should be paid;
  6. There should be no strong electromagnetic field near the flowmeter;
  7. There should be ample space near the flowmeter for installation and maintenance;

IISulfuric acid flowmeterProduct Application
Sulfuric acid flowmeterMainly applied in the following fields:
1) Clear water and sewage
2) Electricity production and distribution
3) Chemical and industrial pharmaceuticals
4) Food industry
IIISulfuric acid flowmeterProduct Features
The measurement of flow rate is carried out using electromagnetic principles in a closed water circuit, which has higher accuracy compared to ultrasonic methods. The important attributes are as follows:
1) No moving parts, no wear and tear
2) The measurement range of the process is 1:100
3) No clarification section or flow enhancement device
4）Sulfuric acid flowmeterApplied to measure the flow velocity of various conductive liquids
5) The measurement results are not affected by physical properties such as temperature, pressure, viscosity, and density
6) Strong corrosion resistance and wear resistance
7) Measurable forward/reverse flow rate
8) Large LCD screen, user-friendly interface, easy to use
9) Persistent EEPROM, used to store configuration parameters and measurement data in case of power failure
10) Support MODBUS/HART communication protocol
11）Sulfuric acid flowmeterWide working voltage range
12) Self diagnosis
How to choose correctly:
The selection of instruments is a very important task in instrument applications. Relevant data shows that 2/3 of instrument failures in practical applications are caused by incorrect selection or installation of instruments. Please pay special attention.
1. Collect data:

2. Range confirmation
Generally, the flow rate of the measured medium in industrial electromagnetic flowmeters should be between 2-4m/s. In special cases, the minimum flow rate should not be less than 0.2m/s and should not exceed 8m/s. If the medium contains solid particles, the commonly used flow rate should be less than 3m/s to prevent excessive friction between the lining and the electrode; For viscous fluids, the flow velocity can be chosen to be greater than 2m/s. A higher flow velocity helps to automatically eliminate the effect of viscous substances attached to the electrode, which is beneficial for improving measurement accuracy.
Under the condition that the range Q has been determined, the size of the flowmeter diameter D can be determined based on the range of flow velocity V mentioned above, and its value can be calculated by the following formula:
Q=πD2V/4
Q: Flow rate (㎡/h) D: Inner diameter of pipeline V: Flow rate (m/h)
The range Q of the electromagnetic flowmeter should be greater than the expected maximum flow value, while the normal flow value should be slightly greater than 50 of the flowmeter's full-scale scale.
3. Reference flow range:

4Sulfuric acid flowmeterWorking principle
Sulfuric acid flowmeterThe principle of flow measurement is based on Faraday's law of electromagnetic induction: when a conductive liquid flows through a measuring tube surrounded by a magnetic field, an induced electromotive force proportional to the average flow velocity will be generated in the direction perpendicular to both the flow direction and the magnetic field. A flowmeter consists of two parts: a sensor and a converter. The converter transmits excitation current to the coil inside the sensor, generating a magnetic field inside the sensor measuring tube. Then, the conductive liquid flowing through the measuring tube generates induced electromotive force by cutting the magnetic field lines. The electrodes fixed on both sides of the measuring tube wall receive and transmit the induced electromotive force to the converter through a signal cable. The converter filters, amplifies, calculates, and transforms the signal to obtain the flow rate value of the measured medium., The converter outputs a standard current signal or frequency signal proportional to the measured flow rate.
5Sulfuric acid flowmetertechnical specifications
Display: Up to 8-bit LCD display, real-time clock displaying various flow data, optional m3 or L display units
Structure: Embedded type design, integrated or split type
Measurement medium: liquid or solid-liquid two-phase fluid, conductivity>0.5 μ s/cm2
Measurement range: 0.05m/s to 12m/s
Measurement accuracy: The accuracy is 0.5% within the range of 0.1m/s to 10m/s
Caliber (mm): 6mm~2000mm
Sulfuric acid flowmeterNominal pressure: PN6, PN10, PN16, PN25, PN40, PN63, PN100, PN160, PN250, PN420, etc. Optional
Output signal: 4~20mA or frequency
signal communication: RS485， Supports MODBUS communication protocol (not standard), supports HART communication protocol (optional)
Connection: DN6~DN2000 are flange connections
Connection standard: Suitable for various pipeline flange standards (such as: BS EN1092-1）
Product standard: Accuracy requirements comply with EN1434-1:2003 standard
CE certification: According to LVD 2006/95/EC and EMC 2004/108/EC
EN 61326-1:2006 radiation standard (declared to comply with BS EN50081-1)
EN 61326-1:2006 anti-interference standard (declared to comply with BS EN50082-1)
EN 61010-1：2001，Sulfuric acid flowmeterProtection level: IP65 when integrated, IP67 or IP68 when split (optional)
Power supply: AC86~220V or DC24V (optional)
Environmental temperature: 5~55 ℃
Environmental humidity:< 85% R.H (non condensing)
VISulfuric acid flowmeterSelection of electrode material:
1）Stainless steel 316L electrodeSuitable for weakly corrosive media such as industrial water, domestic water, sewage, neutral solutions, and weak acids such as carbonic acid and acetic acid.
2）Titanium electrodeResistant to corrosion from seawater, various chlorides, hypochlorites, and hydroxides.
3）Hastelloy C electrodeResistant to oxidizing acids such as nitric acid, mixed acids, mixtures of chromic acid and sulfuric acid; Corrosion resistance to salt and other oxidizing agents in the environment; Has good corrosion resistance to seawater, alkaline solutions, and oxide solutions.
4）Hastelloy B electrodeHas good corrosion resistance to non oxidizing acids, bases, and salts such as sulfuric acid, phosphoric acid, and hydrofluoric acid.
5）Tantalum electrodeExcept for hydrofluoric acid, it can withstand corrosion from almost all chemical media. Due to its high price, it is only used for hydrochloric acid and concentrated sulfuric acid.
6）Tungsten carbide electrodeHas excellent wear resistance and is specifically designed for abrasive media such as mud and pulp.
7Sulfuric acid flowmeterSelection of lining material:
1）Chloroprene rubber liningResistant to corrosion from general low concentration acids, bases, and salts; Working temperature 0-70 ℃; Suitable for: industrial water, sewage, low concentration acid-base salt solutions; As required, it can reach up to 95 ℃.
2）Perfluoropropylene liningGood heat and corrosion resistance, high mechanical strength, good wear resistance, and less likely to damage the lining when cleaning the surface; Working temperature: -20-+180 ℃; Suitable for all three-dimensional materials except for strong abrasive media such as mortar, and can be used for hygiene requirements in places like drinking water, up to 180 ℃ according to requirements; Suitable for pipeline diameters ranging from DN6-400mm.
3）PTFE liningIt can resist corrosion from almost all chemical media and has good wear resistance; Working temperature -40-+180 ℃; Cannot be used for negative pressure pipelines and fluids with strong wear resistance. Suitable for pipeline diameters of DN25-DN1000mm.


Sulfuric acid flowmeterManufacturer's reminder:
[Ordering Notice]: When placing an order, users need to provide the following parameters, and professional technicians will select the appropriate instrument for you to use.
1.Measurement medium;
2.Flow range;
3.Install the inner or outer diameter dimensions of the pipeline;
4.Installation form: a. Plug in type b.Integrated
5.Other accessory functions: a. Frequency output b. Current output c. 485 communication connection d. HART communication;
6.Other attachment functions.