JGLD series of intelligent electromagnetic flowmeter using the latest technology. Using constant frequency three-valued rectangular wave or square wave excitation frequency, both the advantages of square wave magnetic field, but also overcome the shortcomings of sinusoidal magnetic field; also can eliminate the power supply voltage fluctuations, power and excitation frequency caused by changes in coil impedance Error; and have excellent zero stability and noise impact from the fluid. Which has high stability, high reliability characteristics. Intelligent electromagnetic flowmeter measurement principle is based on Faraday's law of electromagnetic induction, intelligent sensors and electromagnetic flowmeter converter formed by a sensor installed in the measuring pipe, the converter can be connected with the sensor combination is called an electromagnetic flow meter body, Converter is installed within 30 meters away from the sensor, or 100 meters of the occasion, shielded cable connection between the two as separate from the electromagnetic flowmeter. Intelligent Electromagnetic Flowmeter main components are: measuring tube, electrode, excitation coil, core and yoke housing. Intelligent electromagnetic flowmeter for measuring the conductivity of closed conduits volume of liquid and slurry flow. Such as water, sewage, slurry, pulp, acids, alkalis, salt solution, slurry and other food products, intelligent electromagnetic flowmeter has been widely used in petroleum, chemical, metallurgical, textile, food, pharmaceutical and paper industry and environmental protection, municipal Management, water conservancy construction and other fields。

Features：
１、Measured from the fluid density, viscosity, temperature, pressure and electrical conductivity change；
２、Unhindered flow measuring tube parts, no pressure drop, straight pipe requirements are lower；
３、Series DNDN15～DN3000。Sensors lining and electrode materials have several choices；
４、Exciting new way converter, low power consumption, zero stability, high accuracy. Flow range can reach1500：1；
５、Converter with sensors or separation of a body type；
６、Converter16Bit high-performance microprocessors，2x16LCDDisplay, convenient parameter setting, programming and reliable；
７、Two-way flow measurement system, built three totalizers: forward total, reverse total amount of the total and difference; to display. Chuang, anti-traffic, and has a variety of output: current, pulse, digital communications、HART；
８、Converter using surface mount technologySMT，With self-test and self-diagnostic function；

Main technical data：
Machine and sensor technical data

Power

Communication

85—265V，45—400Hz

DC

11—40V

Operation keys and display

Push-button

Magnetic button

Internal totalizer

Total forward, reverse, and the difference between the total amount。

Output signal

One-way analog output

Two-way analog output

Lower limit Limit. Or4mA，The other with one-way analog output。

Bi-directional pulse output

Dual alarm output

Digital communication

RS232，RS485，HART

Lining material

The main performance

Maximum medium temperature

Scope of application

—Body

Separate

PTFE（F4

Is the most stable chemical properties of a plastic, the ability of boiling hydrochloric acid, sulfuric acid, nitric acid and aqua regia, and ability to concentrated alkali, and various organic solvents. Intolerant of chlorine trifluoride, chlorine trifluoride high temperature, high Velocity liquid fluorine, liquid oxygen, since oxygen corrosion。

70℃

100℃ 150℃ Special order

1、Concentrated acid, alkali and other strong corrosive medium。 2、Health class medium。

Poly FEP（F46

The sameF4，Wear resistance, negative pressure is higher than thatF4。

The same上

Co-poly vinyl fluoride（Fs

Ceiling temperature than PTFE for low, but the cost is also low。

80℃

Neoprene

1、Has excellent flexibility, high tearing strength, good wear resistance。2、Generally low concentration of acid resistant, alkali and salt corrosion medium, medium oxidation corrosion intolerance。

80℃ 120℃ Special order

Water, sewage, low wear resistance of the mud slurry; 。

Polyurethane rubber

1、Strong wear resistance。

2、Poor corrosion resistance。

80℃

Strong wear neutral slurry, coal slurry, mud

Flange type

Scope of application

Ground or ground ring flange

For non-conductive pipes, such as plastic piping, but does not require a grounding electrode Sensors。

Import protection flange

When the media has a strong selection of wear and tear of time。

Electrode materials

Corrosion and wear resistance

Stainless steel0Crl8Nil2M02Ti

For industrial water, domestic water, sewage and other corrosive media with weak, for the petroleum, chemical, steel and other industrial departments and, municipal and environmental protection。

HastelloyB

Boiling point of all of the following concentrations of hydrochloric acid has good corrosion resistance, and resistance to sulfuric acid, phosphoric acid, hydrofluoric acid, organic acids and other non-chloride, acid, alkali, salt solution of non oxidative corrosion。

HastelloyC

Ability of non-oxidizing acid, such as nitric acid, mixed acid, or chromic acid and sulfuric acid corrosion of mixed media, but also salts such as resistance to oxidation：Fe，"、、Cu"Or under the corrosion with other oxidants such as hypochlorite solution above room temperature, seawater corrosion

Titanium

Capability of water, a variety of chloride and hypochlorite, oxidizing acids, including fuming sulfuric acid, organic acid and alkali corrosion. Impatient with the reduction of pure acid such as sulfuric acid, hydrochloric acid corrosion, but as with oxidants such as nitric acid、Fc＋＋、Cu＋＋，Greatly reduced the corrosion。

Tantalum

Has excellent corrosion resistance and glass are similar. In addition to hydrofluoric acid, fuming sulfuric acid, alkali, almost all chemical media capability, including boiling hydrochloric acid, nitric acid and l 50 ℃ below the sulfuric acid corrosion. Diao in alkali; corrosion。

Platinum／TitaniumAlloy

Virtually all chemical media capability, but not for aqua regia and ammonium。

Stainless steel Tungsten carbide coating

For non-corrosive, strong wear resistance of the medium。

Note: Due to a wide range of media, the corrosive but also by temperature, concentration, Velocity change and other complex factors, so this table is for reference only. Users should make their own choices based on the actual situation, if necessary, make plans to select the material should be corrosion tests, such as the coupon test。