Active Member
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[China]
Address: No. 41, Chengxi Rd, Yantan industrial zone, Yantan dist., Zigong city, Sichuan province, China
Contact name:Nancy Lan
Sichuan Vacorda Instruments Manufacturing Co., Ltd |
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Flow Indicator And Lcd Display Electromagnetic Flowmeter Transmitter
Product features
1. No moving and blocked flow parts in the pipeline, almost no additional pressure loss in the measurement.
2. Measurements results are independent of physical parameters, such as flow distribution, fluid pressure, temperature, density and viscosity.
3. On-site modification of the measuring range available.
4. LCD display, easy to use and simple to operate.
5. Using SMD devices and SMT technology.
6. Using 16-bit embedded processors with fast speed and high accuracy, enhancing the stability of measurement.
7. Anti-interference, reliability, measurement range up to 150:1.
8. Ultra low EMI switch, wide range of power supply voltage.
9. RS485, RS232, Hart and Modbus digital communication signal output.
10. Self-checking function.
Application
Due to its unique advantages, it is widely used in the fields of petroleum, chemical industry, steel, light industry, sewage processing, environmental protection, water conservancy project and pharmacy to measure the volume flow of the conducted liquid mediums, such as acid, alkali, salt solution and so on.
Product Parameters
| (1)working pressure: | pipeline: DN10~DN65: ≤ 2.5MPa |
| (2)Chamber Material: | Stainless steel, carbon steel |
| (3)Power Supply: | 85~265VAC 45~63HZ |
| (4)Repeatability Accuracy: | +/-0.1% |
| (5)Pipe Size: | DN10~DN1200 |
| (6)Output current: | 4~20mADC |
| (7)Accuracy: | piped: 0.5 class, 1.0 class |
| (8)Warranty: | 20 months |
| (9)Life: | 5-7 years |
| (10)Measuring range ratio: | 150:1 |
HKLD type intelligent electromagnetic flowmeter is a fully intelligent electromagnetic flowmeter developed by our company using the most advanced technology at home and abroad. Its electromagnetic converter core adopts high-speed central processing unit. The calculation speed is very fast, the precision is high, and the measurement performance is reliable. The sensor adopts non-uniform magnetic field technology and special magnetic circuit structure, the magnetic field is stable and reliable, and the volume is greatly reduced, the weight is reduced, and the flowmeter is characterized by small flow.
Application:
Product Parameters
| Product Name | Electromagnetic Flowmeter |
| Repeatability error | +/-0.1% |
| Accuracy class | 0.5 class, 1.0 class |
| Measured medium temperature | Common rubber lining: -20~+60 ° c |
| High temperature rubber lining: -20~+90 ° c | |
| PTFE lining: -30~+100 ° c | |
| High temperature vinyl lining: -30~+180 ° c | |
| Rated working pressure | pipeline: DN10~DN65: ≤ 2.5MPa;DN80~DN150: ≤ 1.6MPa; DN200~DN1200: ≤ 1.0MPa |
| Flow rate range | 0.3~15m/s |
| Measured fluid conductivity | ≥5μs/cm liquid |
| Output | 4~20mA / 4~20mA + Hart |
| Electrode material | 316L, titanium (Ti), tantalum (Ta), Hastelloy (H), Platinum (Pt) or other special electrode materials |
| Working power supply | 85~265VAC / 24VDC / Battery |
| Straight pipe length | pipe: ≥ 5DN in the upper reaches, downstream of greater than or equal to 2DN |
| Connections | Flange |
| Protection grade | standard: IP65; IP68(optional) |
| Explosion-proof mark | mdllBT4 |
Sichuan VACORDA Instruments Manufacturing Co., Ltd.is a professional production-manufacturing enterprise specialized in designing, producing and marketing of instruments and apparatuses. Our company has been established for 23 years since 1997 to grow up to be a team of high-quality, united, hard-working and truth-seeking characters. Solid foundation has been established.
In 2017, we moved into our new factory whhich occupies the area about 20000 square meter, the workshop of 6900 square meter, R&D department of 1180 square meter, integrated office building of 1260 square meter, and we have established the high accuracy flow calibration lines.
Precautions
(1) Before installing the turbine flow meter, clean the piping. When the measured media is unclean, add a filter. Otherwise, the turbine and bearing are easily stuck and no flow can be measured.
(2) When disassembling the flowmeter, the magnetic induction part cannot be collided.
(3) Set the meter factor before commissioning. Carefully check to make sure that the instrument wiring is correct and the grounding is good before sending power.
(4) When installing the turbine flowmeter, the front and rear duct flanges should be horizontal, otherwise the pipeline stress has a great influence on the flowmeter.
Test steps
(1) In the case where the pipe is filled with medium, use a
multimeter to measure the resistance between terminals A, B and C.
The resistance between A-C and B-C should be equal. If the
difference is more than 1 time, there may be leakage of the
electrode, condensation on the outer wall of the measuring tube or
inside the junction box.
(2) Under the condition of lining drying, the insulation resistance
between A-C and B-C (should be greater than 200 MΩ) is measured by
MΩ meter. Then use a multimeter to measure the resistance of the
two electrodes in terminals A and B and the measuring tube (should
be in short-circuit communication). If the insulation resistance is
small, indicating that the electrode is leaking, the entire
flowmeter should be returned to the factory for repair. If the
insulation is reduced but there is still more than 50 MΩ and the
inspection result of step (1) is normal, it may be that the outer
wall of the measuring tube is damp, and the inside of the outer
casing can be dried by a hot air blower.
(3) Use a multimeter to measure the resistance between X and Y. If
it exceeds 200 Ω, the excitation coil and its lead wire may open or
contact poorly. Remove the terminal block check.
(4) Check the insulation resistance between X, Y and C, which
should be above 200 MΩ. If it is lowered, use hot air to dry the
inside of the casing. In actual operation, the decrease in the
insulation of the coil causes the measurement error to increase and
the signal output from the meter to be unstable.
(5) If it is determined that the sensor is faulty, please contact
the manufacturer of the electromagnetic flowmeter. The general site
cannot be solved and needs to be repaired by the manufacturer.
