Place of Origin:
China
Brand Name:
Yunyi
Model Number:
LDG
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0.5% Accuracy Digital Electromagnetic Flowmeter Water Flow Meter Dn100 Dn600
Description 0.5% Accuracy Digital Electromagnetic Flowmeter Water Flow Meter Dn100 Dn600
Intelligent electromagnetic flowmeter consists of two parts, the sensor and converter. It is based on the work of Faraday's law of electromagnetic induction, used to measure the conductivity is greater than 5μS / cm conductive liquid volumetric flow rate, is a measure of the volume flow of conductive medium for induction meter. In addition to measure the volume flow of conductive liquid, it can also be used to measure the volume of a homogeneous liquid-solid two-phase flow of a liquid suspension of acid and alkali and other strong corrosive liquids and slurries, pulp and paper pulp.
Widely used in flow measurement of petroleum, chemical, metallurgy, textile, paper, environmental protection, food and other industrial and municipal administration, water conservancy construction, river dredging and other fields.
Parameter 0.5% Accuracy Digital Electromagnetic Flowmeter Water Flow Meter Dn100 Dn600
| Nominal Diameter(mm) (Special specifications can be customized) |
pipeline tetrafluoroethylene lining:DN10～DN2600 | |
| Pipeline rubber lining:DN40～DN2600 | ||
| Flow direction: | positive and negative, the net flow | |
| Turndown ratio: | 1500:1 | |
| Repeatability error: |
± 0.1% of measured value
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| Accuracy: | Pipeline:0.5,1.0 | |
| Measured medium temperature: | ordinary rubber lining::－20～＋60℃ | |
| High-temperature rubber lining: －20～＋90℃ | ||
| PTFE lining:－30～＋120℃ | ||
| High temperature tetrafluoroethylene lining:::－20～＋180℃ | ||
|
Rated working pressure: (High voltage can be customized) |
DN6－DN80:≤2.5MPa | |
| DN100－DN250:≤1.6MPa | ||
| DN300－DN2600:≤1.0MPa | ||
| Flow rate range: | 0.1－15m/s | |
| Conductivity range: | the measured fluid conductivity≥5μs/cm | |
| Current output: | load resistance | 0～10mA:0～1.5kΩ |
| 4～20mA:0～750 kΩ | ||
| Digital frequency output: |
transistor output frequency limit can be set with optical isolation within 1 ~ 5000HZ bidirectional open-collector output. External power supply is turned ≤35V maximum collector current of 250mA
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| Power supply: | AC220Vor DC24V | |
| Length of straight pipe requirements | upstream≥5DN,downstream≥2DN | |
| Connection: |
are used between the meter and piping flange connection, flange dimensions shall comply with the provisions of GB11988
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| Explosion levels | mdIIBT4 | |
| Protection class: | IP65,special order up to IP68 | |
| Ambient temperature: | －25～＋60℃ | |
| Relative humidity: | 5%～95% | |
|
Total power consumption:
|
less than 20W | |
Measurement range:
| Inner diameter(mm) | 10 | 15 | 20 | 25 | 32 | 40 | 50 | 65 |
| Qmin(m3/h) | 0.0283 | 0.0636 | 0.12 | 0.176 | 0.29 | 0.452 | 0.7 | 1.19 |
| Qmax(m3/h) | 4.24 | 9.54 | 16.96 | 26.5 | 43.42 | 67.85 | 106.0 | 179.0 |
| Inner diameter(mm) | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 |
| Qmin(m3/h) | 1.8 | 2.82 | 4.41 | 6.36 | 11.3 | 17.6 | 25.4 | 34.6 |
| Qmax(m3/h) | 271.0 | 424.0 | 662.0 | 954.0 | 1690 | 2650 | 3810 | 5190 |
| Inner diameter(mm) | 400 | 450 | 500 | 550 | 600 | 700 | 800 | 900 |
| Qmin(m3/h) | 45.2 | 57.2 | 77.6 | 85.5 | 101.0 | 138.0 | 180.0 | 229.0 |
| Qmax(m3/h) | 6780 | 8570 | 10600 | 12800 | 15200 | 20700 | 27100 | 34300 |
| Inner diameter(mm) | 1000 | 1100 | 1200 | 1400 | 1600 | 1800 | 2000 | 2200 |
| Qmin(m3/h) | 282.0 | 342.0 | 407.0 | 554.1 | 732.7 | 916.0 | 1131.0 | 1368.4 |
| Qmax(m3/h) | 42400 | 51300 | 61000 | 83121 | 108566 | 137404 | 169635 | 205258 |
Select the lining material
Should be based on the measured medium temperature corrosive wear and to select the lining material
| Lining material | corrosion resistance | Working temperature | Application |
| Ne | General resistance to low concentrations of acid salt corrosion | -20～70℃ | lower industrial water effluent pH and salt concentration |
| PO | Has an excellent wear resistance, abrasion resistance slurry dedicated to strong, not decay | -10～60℃ | Liquids containing solid particles (slurry pulp, etc.) |
| FEP |
1 corrosion resistant and quite PTFE 2 high mechanical strength, good wear resistance 3 table smooth, easy adhesion precipitate 4 have strong abrasive media fluid good resistance to outside negative, anti-vacuum effect |
-40～180℃ | except mortar. Like with PTFE can be used for drinks and other health requirements of the media |
| PTFE | lmost all of the corrosion resistant chemical media, poor wear resistance | -40～180℃ | Not be used for pipes and wear strong negative fluid |
Selective Electrode Materials
Should be based on the measured fluid corrosive to select material of the electrodes, check the manual for special fluids should be corrosion test
| Material | Code | corrosion resistance | |
| 316Lstainless steel | V | 1 applies to a neutral solution of industrial, domestic water, raw water wells, urban sewage 2 weak corrosive acids, bases, salts medium such as carbonic acid, acetic acid, etc. |
|
| Hastelloy C | HC |
1 applies to anti-oxidizing acids, such as a mixture of nitric acid, mixed acid, chromic acid and sulfuric acid 2 oxidation resistance salt or other corrosive environments, such as the oxidant Fe, Cu 4 NA: hydrochloric acid |
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| Hastelloy B | HB |
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| Titanium | Ti | seawater resistant, various chlorides suddenly hypochlorite and a variety of corrosion hydroxide | |
| Ta | Ta | except hydrofluoric acid, almost all corrosive chemical media capability. But expensive | |
| Platinum | Pt | salt solution applicable to all of the acid (fuming sulfuric acid and nitric acid) | |
| Tungsten | W | has excellent wear resistance, dedicated to the mud, pulp and other abrasive media |
Features 0.5% Accuracy Digital Electromagnetic Flowmeter Water Flow Meter Dn100 Dn600
l Fully digital processing, anti-interference ability, reliable measurement, high accuracy flow measurement range up to 1500: 1
l Ultra-Low EMI switching power supply for supply voltage variation range, anti-EMI performance.
l 16-bit embedded microprocessors, computing speed, high precision, programmable low-frequency square wave excitation frequency and improve the stability of the flow measurement, low power consumption.
l using SMD devices and surface mount (SMT) technology, circuit reliability.
l No moving parts inside the pipe l, unimpeded flow of parts, measuring almost no additional pressure loss.
l range in the field can be modified online according to the actual needs.
l measurements and velocity distribution, the physical parameters of the fluid pressure, temperature, density, viscosity and the like.
l High-resolution backlit LCD display, full Chinese menu, easy to use, simple to operate, easy to understand.
l have RS485, RS232, Hart, and Modbus and other digital communication signal output. (Optional)
l has a self-test and self-assertion.
l total hourly recording function to record the total flow in units of hours for hourly metering system (optional)
l have three internal totalizer can show the cumulative amount of forward and reverse cumulative amount of the difference between the volume totalizer, the internal power-down features not always, can record 16 power-down times. (Optional)
l IR handheld operator, 115KHZ communication speed, long-distance non-contact operation of all functions converter (optional)
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