The measurement accuracy of Anhui Tiankang electromagnetic flowmeter is not affected by changes in fluid density, viscosity, temperature, pressure, and conductivity. The sensor induced voltage signal is linearly related to the average flow rate, resulting in high measurement accuracy.
Anhui Tiankang Electromagnetic Flow MeterThere is no obstruction in the measuring pipeline, so there is no additional pressure loss; There are no movable parts inside the measuring pipeline, so the sensor has an extremely long lifespan. The submersible electromagnetic flowmeter requires a shorter straight pipe section, with a length of 5 times the diameter of the pipeline, as the induced voltage signal is formed in the entire space filled with a magnetic field and is the average value on the pipeline surface. The sensor part of the submersible electromagnetic flowmeter only has the inner lining and electrodes in contact with the measured liquid. As long as the electrode and inner lining materials are selected reasonably, they can be corrosion-resistant and wear-resistant.
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Anhui Tiankang Electromagnetic Flow MeterConverter technology data
power supply |
communication |
85—265V,45—400Hz |
direct current |
11—40V |
Operation keys and display |
push-button |
Four thin film buttons can be used to set and select all parameters, and the converter can also be programmed using RS232 on a PC; |
3-line LCD with wide viewing angle, wide temperature, and backlit display; |
The first line displays the traffic value; |
The second line displays the flow unit; |
The third line displays the percentage of traffic, total forward, total reverse, total difference, alarm, and flow rate. |
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Magnetic key type |
Two magnetic keys are used for selecting and resetting display parameters, and the converter is programmed using RS232 on a PC; |
2-line LCD with wide viewing angle, wide temperature, and backlit display: |
Line 1: Magnetic key selection: Display flow percentage, forward total amount, reverse total amount, difference total amount, alarm, flow rate. |
Line 2: Display traffic. |
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Internal integrator |
Positive total, negative total, and differential total. |
output signal |
Unidirectional analog output |
Fully isolated, when the load is ≤ 600D.20mA; |
Upper limit: 0-21mA optional, 1mA per level; |
Lower limit: 0-21mA optional, 1mA per level; |
Programming for forward and reverse flow output modes. |
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Bidirectional analog output |
The lower limit is. Or 4mA, other same unidirectional analog outputs. |
Bidirectional pulse output |
Two outputs correspond to forward and reverse flow rates, with a frequency range of 0-800Hz and an upper limit of 1-800Hz to choose from. Each IHz level is available; |
Square wave or selected pulse width, with an upper limit of 2.5S and 1ms per level; |
Passive isolation transistor switch output, capable of absorbing 250mA current and withstanding 35V voltage. |
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Dual channel alarm output |
Programmable alarm for high/low flow rate, air traffic control, fault status, positive/negative flow rate, analog over range, pulse over range, pulse small signal cutoff, with optional output polarity; |
Transistor switch output with isolation protection, capable of absorbing a current of 250mA, withstand voltage of 35V, and not isolated from pulse output |
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Digital Communication |
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RS232,RS485,HART |
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Selection of imported protective flanges and grounding flanges or grounding rings
Type of flange |
Scope of application |
Grounding flange or grounding ring |
Suitable for non-conductive pipelines such as plastic pipes, but sensors with grounding electrodes do not require them. |
Import protection flange |
Choose when the medium has strong wear resistance. |
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Selection of electrodes
electrode material |
Corrosion resistance and wear resistance |
Stainless steel 0Crl8Nil2M02Ti |
Used for weakly corrosive media such as industrial water, domestic water, sewage, etc., suitable for industrial sectors such as petroleum, chemical, steel, as well as municipal and environmental protection fields. |
哈氏合金B |
It has good corrosion resistance to all concentrations of hydrochloric acid below boiling point, as well as to non chlorinated acids, bases, and non oxidizing salt solutions such as sulfuric acid, phosphoric acid, hydrofluoric acid, and organic acids. |
Hastelloy C |
Can withstand corrosion from non oxidizing acids such as nitric acid, mixed acids, or mixed media of chromic acid and sulfuric acid, as well as corrosion from oxidizing salts such as Fe, ', Cu', or other oxidants such as hypochlorite solutions above room temperature and seawater |
Titanium |
Capable of withstanding corrosion from seawater, various chlorides and hypochlorites, oxidizing acids including fuming sulfuric acid, organic acids, and alkalis. Not resistant to the corrosion of relatively pure reducing acids such as sulfuric acid and hydrochloric acid, but if the acid contains oxidants such as nitric acid, Fc++, Cu++, the corrosion is greatly reduced. |
Tantalum |
It has excellent corrosion resistance and is very similar to glass. Except for hydrofluoric acid, fuming sulfuric acid, and alkali, it can almost withstand the corrosion of chemical media including boiling point hydrochloric acid, nitric acid, and sulfuric acid below 50 ℃. Dig in alkali; Corrosion resistance. |
Platinum/titanium alloy |
Almost capable of cutting chemical media, but not suitable for aqua regia and ammonium salts. |
Stainless steel coated with tungsten carbide |
Used for non corrosive and highly abrasive media. |
Note: Due to the wide variety of media and the complex factors such as temperature, concentration, and flow rate that affect their corrosiveness, this table is for reference only. Users should make their own choices based on the actual situation, and if necessary, conduct corrosion resistance tests on the selected materials, such as hanging plate tests. |
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Reference flow range of submersible electromagnetic flowmeter
Caliber mm |
Flow range m3/h |
Caliber mm |
Flow range m3/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 |
Selection Table for Submersible Electromagnetic Flowmeters
model |
caliber |
|
LD |
15~2600 |
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code name |
electrode material |
|
K1 |
316L |
K2 |
HB |
K3 |
HC |
K4 |
Titanium |
K5 |
Tantalum |
K6 |
Platinum alloy |
K7 |
Stainless steel coated with tungsten carbide |
|
code name |
Lining material |
|
C1 |
Polytetrafluoroethylene F4 |
| C2 |
Perfluoroethylene propylene F46 |
| C3 |
Polyfluoroethylene FS |
| C4 |
Polyvinyl rubber |
| C5 |
Polyurethane rubber |
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code name |
function |
| E1 |
Level 0.3 |
E2
|
Level 0.5 |
E3
|
Level 1 |
| F1 |
4-20Madc, Load ≤ 750 Ω |
| F2 |
0-3kHz, 5V active, variable pulse width, excellent effective frequency output |
| F3 |
RS485 interface |
| T1 |
Room temperature type |
T2
|
high-temperature type |
T3
|
Ultra high temperature type |
| P1 |
1.0MPa |
| P2 |
1.6MPa |
P3
|
4.0MPa |
P4
|
16MPa |
| D1 |
220VAC±10% |
| D2 |
24VDC±10% |
| J1 |
Integrated structure |
| J2 |
Split type structure |
| J3 |
Explosion proof integrated structure |