JGLD-B 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
Implementation of standards |
JB/T 9248~1999 |
DN |
15、20、25、32、40、50、65、80、100、125、150、200、250、300、350、400、450、500、600、700、800、900、1000、1200、1400、1600、1800、2000、2200、2400、2600、2800、3000 |
The maximum flow rate |
15m/s |
Accuracy |
DNl5~DN600 |
Indication of:±0.3% Velocity≥1m/s;±3mm/sVelocity<1m/s |
DN700~DN3000 |
Indication of±0.5%Velocity≥0.8m/S;±4mm/sVelocity<0.8m/S |
Fluid conductivity |
≥5uS/cm |
PN |
4.0MPa |
1.6MPa |
1.0MPa |
0.6MPa |
6.3、10MPa |
DNl5~DN150 |
DNl5~DN600 |
DN200~DN1000 |
DN700~DN3000 |
Special order |
Ambient temperature |
Sensors |
-25℃- +60℃ |
Converter and a body |
-10℃- +60℃ |
Lining material |
PTFE, neoprene, polyurethane, polyethylene FEPF46、ScreeningPFA |
The maximum fluid temperature |
A body |
70℃ |
Separate |
Neoprene lining |
80℃;120℃When ordering |
Polyurethane lining |
80℃ |
PTFE liner |
100℃;150℃When ordering |
Poly FEPF46 |
ScreeningPFA |
Signal electrode and ground electrode material |
Stainless steel0Crl8Nil2M02Ti、HastelloyC、HastelloyB、Titanium, tantalum, platinum / iridium alloy, Stainless steel coated with tungsten carbide |
Electrode scraper |
DN300—DN3000 |
Flange material |
Carbon steel |
Grounded flange material |
Stainless steel1Crl8Ni9Ti |
Import protection flange material |
DN65—DNl50 |
Stainless steel1Crl8Ni9Ti |
DN200~DNl600 |
Carbon steel十Stainless steel1Crl8Ni9Ti |
Protective shell |
DNl5~DN3000Separate Rubber or polyurethane lining Sensors |
IP65 or IP68 |
Other Sensors, a flow meter and Separate size converter |
IP65 |
Spacing Separate |
Sensors converters generally do not exceed the distance100m |
|
|
Technical data converters
Power |
Communication |
85—265V,45—400Hz |
DC |
11—40V |
Operation keys and display |
Push-button |
4 membrane keys all parameters can be set to choose, can also be usedPCRS232The converter set programming; |
3LCDWide viewing angle, wide temperature, with a backlit display; |
Line shows the flow of value 1; |
Line shows the flow of value 2; |
Line 3 shows the percentage of traffic, the total positive, negative total margin, alarm, Velocity。 |
|
Magnetic button |
2A magnetic button used to display the parameter selection and reset,UsePCRS232The converter set programming; |
2LCDWide viewing angle, wide temperature, with a backlit display: |
1:Magnetic key:Shows the percentage of traffic, the total positive, negative total margin, alarm、Velocity。 |
2:Display of flow。 |
|
Internal totalizer |
Total forward, reverse, and the difference between the total amount。 |
Output signal |
One-way analog output |
Fully isolated, load≤600D.20mA时; |
Ceiling:0—21mAOptionally, each filelmA; |
Lower limit:0—21mAOptionally, each file1mA; |
Forward and reverse flow output programming。 |
|
Two-way analog output |
Lower limit Limit. Or4mA,The other with one-way analog output。 |
Bi-directional pulse output |
Two outputs corresponding to forward and reverse flow,Frequency0~800Hz,Ceiling1~800HzOptional,Each fileIHz; |
Square wave or pulse width selected, the selected pulseCeiling2.5S,Each file1ms; |
Passive isolation transistor switching output can be absorbed 250mA of current, voltage 35V。 |
|
Dual alarm output |
Alarm programming can be high / low flow, air traffic control, fault status, positive, reverse flow, analog over-range, pulse volume over range, the pulse small signal removed, the output polarity Optional; |
Isolated protection transistor switch output,Absorbable250mACurrent,Pressure35V.With the pulse output is not isolated |
|
Digital communication |
|
RS232,RS485,HART |
|
The choice of lining
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 |
|
Import protection and grounding flange ring flange or the choice of ground
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 selection
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。 |
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JGLD series of intelligent flow meter instrument selection
◆Confirmation measuring range
General industrial use smart media Velocity measured by electromagnetic flowmeter2~4m/sAppropriate, in exceptional circumstances, shall not be less than the minimum Velocity0.2m/s,Should not be greater than the highest8m/s。If the medium contains solid particles, often Velocity should be less than3m/s,To prevent excessive friction lining and the electrode; for viscous fluid,VelocityOptionalOptional larger2m/s,Larger VelocityHelp to automatically remove the electrode attached to the role of viscous material, helping improve the measurement accuracy。
Q has been determined in the range of conditions, to the scope of the above decision Velocity V meter aperture size D, the value calculated by the following formula:
Q=πD2V/4
Q:Flow(㎡/h) D:Pipe diameter V:Velocity(m/h)
The range of intelligent flow meterQShould be larger than the expected maximum flow value, while the normal flow values are slightly larger than the scale of full scale flow meter50Appropriate。
◆JGLDReference Series Intelligent Electromagnetic Flowmeter flow range
Diametermm |
Flow rangem3/h |
Diametermm |
Flow rangem3/h |
φ15 |
0.06~6.36 |
φ450 |
57.23~5722.65 |
φ20 |
0.11~11.3 |
φ500 |
70.65~7065.00 |
φ25 |
0.18~17.66 |
φ600 |
101.74~10173.6 |
φ40 |
0.45~45.22 |
φ700 |
138.47~13847.4 |
φ50 |
0.71~70.65 |
φ800 |
180.86~18086.4 |
φ65 |
1.19~119.4 |
φ900 |
228.91~22890.6 |
φ80 |
1.81~180.86 |
φ1000 |
406.94~40694.4 |
φ100 |
2.83~282.60 |
φ1200 |
553.90~55389.6 |
φ150 |
6.36~635.85 |
φ1600 |
723.46~72345.6 |
φ200 |
11.3~1130.4 |
φ1800 |
915.62~91562.4 |
φ250 |
17.66~176.25. |
φ2000 |
1130.4~113040.00 |
φ300 |
25.43~2543.40 |
φ2200 |
1367.78~136778.4 |
φ350 |
34.62~3461.85 |
φ2400 |
1627.78~162777.6 |
φ400 |
45.22~4521.6 |
φ2600 |
1910.38~191037.6 |
JGLD Series of intelligent electromagnetic flowmeter selection
Model |
Diameter |
|
JGLD |
15~2600 |
|
|
Code |
Electrode materials |
|
K1 |
316L |
K2 |
HB |
K3 |
HC |
K4 |
Titanium |
K5 |
Tantalum |
K6 |
PlatinumAlloy |
K7 |
Stainless steelTungsten carbide coating |
|
Code |
Lining material |
|
C1 |
PTFEF4 |
C2 |
Poly FEP F46 |
C3 |
Co-poly vinyl fluoride FS |
C4 |
Poly recorded polybutadiene rubber |
C5 |
Polyurethane rubber |
|
Code |
Function |
E1 |
0.3 |
E2
|
0.5 |
E3
|
1 |
F1 |
4-20Madc,Load ≤750Ω |
F2 |
0-3khz, 5v active, variable pulse width, output frequency of high-effective |
F3 |
RS485 Interface |
T1 |
Normal temperature |
T2
|
High temperature |
T3
|
Ultra-high temperature |
P1 |
1.0MPa |
P2 |
1.6MPa |
P3
|
4.0MPa |
P4
|
16MPa |
D1 |
220VAC±10% |
D2 |
24VDC±10% |
J1 |
A body structure |
J2 |
Sub-body structure |
J3 |
Proof of a body structure |
|