Hydrochloric acid meter, the meter of concentrated hydrochloric acid, hydrochloric acid flowmeter selection

Hydrochloric acid meter, the meter of concentrated hydrochloric acid, hydrochloric acid flowmeter selection

Product description:

Working pressure: 6.4 (MPa) Nominal diameter: DN10-DN2200 (mm)
Operating temperature: 280 (℃) Custom processing: It is
Measuring range: 1-10000000 (m3 / h) Types of: Electromagnetic Flowmeter
model: LDG Accuracy: 0.5
Brand: Xiamen Jing Chuan Medium: Acid flowmeter
Turndown ratio: 150: 1

(Company name) Xiamen Jing Chuan Automation Technology Co., Ltd.
(Company website) http: //www.xmjingchuan.cn/
http:. //www.liuliangji360 com /
http: //www.xmjingchuan.com/
(Address) Xiamen Huli District Yuehua Road, Building 2, Building 151 Howley 5 layers
(Phone) 0592-2657356 / 5/7
(7X24 hours) 15859215896 (Yu Gong)
(Production capacity) design production capacity of one million units per year
(Service) product from the date of the factory within 12 months from the Warranty Services, appears human damage quality problems, the company responsible for repair, replacement or return, outside the guarantee period to provide paid maintenance services for life.

Jing Chuan JC-LDG Hydrochloric acid flowmeter

Similar names are: Hydrochloric acid meter, the meter of concentrated hydrochloric acid, hydrochloric acid flowmeter selection

I. Product Overview:

Jing Chuan JC-LDG type Hydrochloric acid flowmeter The sensor consists of two parts, in direct contact with the upper end of the pipe and the medium constituting the signal converter. It is based on Faraday's law of electromagnetic induction work, used to measure flow conductivity is greater than 5μs / cm conductive liquid is an electrically conductive medium flow measuring instrument . 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 mud, pulp, paper pulp, etc., it is widely used in chemical industry chemical, 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 pulp, fiber pulp, grain syrup, lime, sewage, cooling raw 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 Hydrochloric acid flowmeter Yes Faraday's law to work on the measurement pipe axis and the magnetic field lines perpendicular to the wall to install a pair of sensing electrodes, when the conductive liquid along the pipe axis flow, conductive liquid cutting magnetic field lines generated EMF based on this sensor the potential detected by the two detection electrodes, the value proportional to the size of the flow, which is calculated as:

E = B * V * D * K

Where, E- EMF;

K- and field distribution and axial length of the relevant factors;

B- magnetic induction;

V- conductive liquid average velocity;

D- electrode spacing (pipe diameter);

E EMF sensor as a flow rate signal is transmitted to the converter, after the amplifier, transform, filter and a series of digital processing, 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 Hydrochloric acid flowmeter It has the following characteristics:

n pipes no moving parts, unimpeded flow of parts, measuring almost no additional pressure loss;

n measurements and velocity distribution of physical parameters of fluid pressure, temperature, density, viscosity and the like;

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, fast speed, high accuracy;

n Ultra Low EM1 switching power supply for power supply voltage range, strong anti-electromagnetic interference capability;

n High-resolution backlit LCD display wide temperature range, the English menu, easy to use, simple to operate, easy to understand;

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

n has three internal totalizer, show positive cumulative reverse cumulative amount and the difference between the volume totalizer, convenient 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 functions, with open and stop the cumulative contact signal input, suitable for total inspection and batch processing applications;

n has a self-test and self-diagnostic function, it is determined enough electrodes are contaminated, coverage and other anomalies, to provide users with information processing such as cleaning fault electrode;

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.

Fourth, the technical parameters

Jing Chuan Some basic parameters JC-LDG HCl flowmeter as follows:

Implementation of standards

Electromagnetic flowmeter (JB / T9248-1999)

Nominal diameter range DN (mm)

Pipeline tetrafluoroethylene lining: 101520253240506580100125150200250300350400450500600

Pipeline rubber lining: 4050658010012515020025030035040050060080010001200

Flow direction

Positive and negative, the net flow

Accuracy class

0.5, 0.1

Turndown ratio

150: 1

Repeatability error

± 0.1% of measured value

Measured medium temperature

Ordinary rubber lining: -20 ~ + 60 ℃

High temperature rubber lining: -20 ~ + 90 ℃

PTFE lining: -30 ~ + 100 ℃

High temperature tetrafluoroethylene lining: -30 ~ + 180 ℃

Rated working pressure

DN6-DN100: ≤1.6Mpa.

DN125-DN2200≤1.0Mpa high pressure can be customized

Flow range

0.1-15m / s

Conductivity range

Measured fluid conductivity ≥5μs / cm. Most water as a medium component, its conductivity within 200-800μs / cm range, can be selected electromagnetic flowmeter to measure the flow

Signal output

4-20mA current output; pulse / frequency output;

Communication output

RS485; HART protocol;

Power supply

85 ~ 265V, 45 ~ 63HZ

Straight pipe length

Upstream ≥5DN, downstream ≥2DN


Adopt flange connection between meter and piping, flange dimensions shall comply with the provisions of GB11988.

Explosion levels


Protection class

IP65, the highest degree of protection IP68 can be customized

Ambient temperature


Relative humidity


Total power consumption

Less than 15W

Fifth, hydrochloric acid and hydrochloric acid meter meter model description selection:

JC-LDBE- • - • - • - • - • - • - • - • - • - • - •
① ② ③ ④ ⑤ ⑥ ⑦⑧ ⑨ ⑩11
①: Nominal size (unit mm): DN10-DN1200

②: a combination of forms: integrated into (S) and Split (L);

③: electrode material:

M-M02Ti T-Ti (titanium) D-Ta (tantalum)

HB- Hastelloy Hastelloy -C -B HC-

P-Pt (platinum) N-Ni (Nickel) W-WC (tungsten carbide)

④: Output: 0 - no output pulses 2-4-20mA 1-

⑤: Lining material: divided into the following categories:


C- chloroprene rubber (CR)

U- Polyurethane (PU)

Fluorine plastic categories:

F- polytetrafluoroethylene (F4 / PTFE)

E- Teflon (tetrafluoroethylene and hexafluoropropylene) (F46 / PEP)

Plastic categories:

T- and ethylene tetrafluoroethylene (F4 / ETFE)

Polyethylene O- (PO)

S- polyphenylene sulfide (PPS)

⑥: whether to live local display: divided into no local display (0) and local display (1);

⑦: Communication: 0 - no communication 1-RS485 communication

2-RS232 communication 3-MODBUS


⑧: Grounding Ring

0 - no grounding ring

1- grounding ring

2- ground electrode

⑨: Pressure rating:

P1: 1.6MPa P2: 1.0MPa P3: 0.6MPa

⑩: Explosion levels: 0 No explosion proof requirements 1-

11: upper flow (range): m3 / h

Sixth, hydrochloric acid flowmeter installation instructions:

In order to correctly measure, the choice of pipeline location should note the following requirements:

(1) The sensor can either be installed on a vertical pipe can also be mounted on a horizontal or inclined pipeline, but requires two electrodes center connection is level;

(2) media during the installation position should ensure full pipe flow, to avoid discontent and gas pipe attached to the electrode;

(3) For the liquid-solid two-phase fluid, preferably mounted vertically, so that the sensor is uniformly lining friction and prolong life;

(4) When the meter installation media is dissatisfied pipe, can be taken to raise the rear end of the flow pipe line method to make full pipe, the highest point in the pipeline is strictly prohibited and outlet flow meter is installed;

(5) Modify the pipeline installation method:

When the medium flow rate below standard, the meter should be selected smaller diameter, then you should use conjugated tube diameter or modify part of the pipeline, so that the sensor of the same caliber, but around the straight section must at least meet the former straight pipe ≥ 5DN, after the straight pipe ≥2DN;

(6) the length of straight pipe before and after meter before ≥5DN, backend ≥2DN;