Battery-powered electromagnetic flowmeter

Battery-powered electromagnetic flowmeter

Product description:

Jing Chuan battery-powered electromagnetic flowmeter

Jing Chuan JC-LDG-type battery-powered electromagnetic flowmeter is composed of two parts in direct contact with the pipe and the upper end of the medium sensor signal converter. It is based on the work of Faraday's law of electromagnetic induction, used to measure the flow conductivity is greater than 5μs / cm conductive liquid, is an electrically conductive medium flow measurement instruments. In addition to measuring the flow of conductive liquid, but also can be used to measure acid, alkali and other strong corrosive liquids and homogeneous suspension containing the liquid-solid two-phase liquid, such as slurries, pulp, etc., it is widely used in chemical fiber, food, paper, sugar, mining, water supply, environmental protection, water conservancy, steel, petroleum, pharmaceutical and other industrial areas to measure various chemical salt solution, slurry, pulp, paper pulp, coal water slurry, corn syrup, fiber pulp, grain syrup, lime, sewage, raw cooling water, drainage, saline, hydrogen peroxide, beer, wort, drinks, liquor, green liquor and other conductive liquid medium traffic.

Second, the principle:

Jing Chuan JC-LDG-type battery-powered electromagnetic flow meter is based on the work of Faraday's law of electromagnetic induction; in the measurement pipe axis and perpendicular to the magnetic field lines of a pair of detecting electrodes wall mounted; when the conductive liquid flows along the pipe axis; conductive liquid cutting magnetic field lines generated EMF; this EMF detected by the two detection electrodes; value is proportional to the size and flow; it is calculated as follows:

E = B * V * D * K

. Where E - EMF;

K - and the magnetic field distribution and axial length coefficient related;

B - magnetic induction;

V - the average velocity of the conductive liquid;

D - electrode spacing (pipe diameter);

E EMF sensor as a flow rate signal; transmitted to the converter; by the amplifier; transform; and a series of digital processing after filtering; with bright LCD display instantaneous flow rate and cumulative flow; converter has 4-20mA output; alarm output ; frequency output can be selected; and a RS485 communication interface, and supports HART and MODBUS communication protocol.

Third, the product features:

Jing Chuan JC-LDG-type battery-powered electromagnetic flowmeter has the following characteristics:

No moving parts inside the pipe n; unimpeded flow of parts; measuring almost no additional pressure loss;

n measurements and velocity distribution; fluid pressure; viscosity physical parameters; temperature; density;

n in the field online range according to actual needs of users;

n programmable low-frequency square wave excitation frequency and improve the flow measurement stability, low power consumption;

n using new ultra-low-power 16-bit microprocessor containing flash memory; high integration; computing speed; high accuracy;

n Ultra Low EM1 switching power supply; large scope of supply voltage variation; strong anti-electromagnetic interference capability;

n High-resolution backlit LCD display wide temperature range; English menu operation; easy to use; simple to operate; easy to learn;

n all-digital processing; anti-jamming; reliable measurement; high accuracy flow measurement range of up to 150: 1;

n has three internal totalizer; show positive cumulative; reverse the accumulated amount and the difference between the volume totalizer; facilitate fluid metering and trade settlement;

n has a RS485 digital communications signal output, optional RS232 and HART and other fieldbus digital communication output (optional);

n has cleared totalizer remote control function; with open and stop the accumulation of contact signal input; suitable for total inspection and batch processing applications;

n has a self-test and self-diagnostic function; discriminating enough electrodes are contaminated; coverage and other anomalies; failure to provide users with clean electrodes and other treatment information;

n internal design of the instrument does not power down the clock, it can record power-down time (optional);

n instrument with optional hours total recording function, traffic data can be stored for more than 30 days of history.