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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4-20ma Output Digital Electromagnetic Flowmeter Transmitter Price With Rs485
Product Instructions
Working principle of electromagnetic flowmeter measurement
principle is based on the Faraday law of electromagnetic induction.
Measurements of the flow meter tube is lined with insulating
material of a non-magnetic alloy spool. Two clicks along the
diameter through-wall fixing on the measuring tube. The electrode
head is flush with the lining inner surface. Field coil by waves
when pulsed excitation by both parties, will be measured
perpendicular to the pipe axis direction produces a magnetic flux
density of the magnetic field b. At this point, if you have some
electrical conductivity of fluid flows through the measuring tube,
cut magnetic lines of induction electromotive force E.
Electromotive force e is proportional to the magnetic flux density
B, measure the inside diameter d and the product of the mean
velocity v. Electromotive force e (traffic signal) checked out by
electrodes and cables to the converter. Converter after the traffic
signal will be amplified, to display fluid flow and energy output
pulse, analog current signals for flow control and the flow
adjustment.
In the industrial environment, electromagnetic flowmeters are primarily used in water management and in the processing, life sciences and food industries. In tunnel construction and mining, robust magmeters are often the only option for measuring highly abrasive ore slurries with entrained solids, sand-water mixtures, filler materials or bulk solids with the required accuracy.
Features
* The measuring principle is virtually independent of pressure, density, temperature and viscosity
* Even fluids with entrained solids can be metered, e.g. ore slurry or cellulose pulp
* Wide range of nominal diameters (DN 2 to 2400; 1/12 to 90")
* Free pipe cross-section: CIP/SIP cleanable, piggable
* No moving parts, maintenance-free
* Line sizes available from 1/2in (15mm) to 48in (1200mm) Call us
for sizes above 24 inches
* Fully welded construction Withstands sustained vibration
* Dual-compartment transmitter housing keeps electronics isolated
from moisture and contamination
* Continuous meter verification confirms meter calibration without
interrupting the process
* Electrode coating diagnostic indicates when preventive
maintenance is needed, avoiding unexpected downtime
* High process noise diagnostic provides accurate readings to
reduce process variability
* Printed report verifies meter performance for regulatory agencies
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 |
