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大管径电磁流量计由传感器和转换器两部分构成。它是基于法拉第电磁感应定律工作的，用来测量电导率大于5μS/cm导电液体的体积流量，是一种测量导电介质体积流量的感应式仪表。除可测量一般导电液体的体积流量外，还可用于测量强酸强碱等强腐蚀液体和泥浆、矿浆、纸浆等均匀的液固两相悬浮液体的体积流量。广泛应用于石油、化工、冶金、轻纺、造纸、环保、食品等工业部门及市政管理，水利建设、河流疏浚等领域的流量计量。
技术参数：
公称通径（mm） （特殊规格可定制） | 管道式四氟衬里：DN10～DN600 |
管道式橡胶衬里：DN40～DN2200 | |
流动方向 | 正，反，净流量 |
量程比 | 150：1 |
重复性误差 | 测量值的±0.1% |
精度等级 | 管道式：0.5级，1.0级 |
被测介质温度 | 普通橡胶衬里：－20～＋60℃ |
高温橡胶衬里：－20～＋90℃ | |
聚四氟乙稀衬里：－30～＋100℃ | |
高温型四氟衬里：－20～＋180℃ | |
额定工作压力 | DN10－DN150：≤1.6MPa |
DN200－DN350：≤1.0MPa | |
DN400－DN1000：≤0.6MPa | |
DN450－DN2200：≤0.25MPa | |
流速范围 | 0.1－15m/s |
电导率范围 | 被测流体电导率≥5μs/cm |
信号输出 | 4～20mA（负载电阻0～750Ω），脉冲/频率，控制电平 |
通讯输出 | RS485,MODBUS协议，HART协议 |
供电电源 | AC220V或DC24V |
要求直管段长度 | 上游≥5DN，下游≥2DN |
连接方式 | 流量计与配管之间均采用法兰连接,符合国标GB/T9115.1-2000 |
防爆等级 | ExdeiallBT4-T6 |
防护等级 | IP65，特殊订制zui高可达IP68 |
环境温度 | －25～＋60℃ |
相对温度 | 5%～95% |
消耗总功率 | 小于20W |
选型表：
型 号 | 代码 | 说 明 |
WFLDE- | ||
通径 | □□□ | 10-2200mm |
结构形式 | S | 一体型 |
L | 分体型 | |
电极材料 | M | 不锈钢 |
T | Ti（钛） | |
D | Ta（钽） | |
H | 哈氏合金 | |
P | Pt铂 | |
N | Ni镍 | |
输出方式 | 0 | 无输出 |
1 | 4-20mA/1-5KHz | |
2 | 4-20mA | |
衬里材料 | X | 橡胶 |
F | 聚四氟乙烯 | |
P | 聚乙烯 | |
J | 聚氨酯橡胶 | |
就地显示 | 0 | 无就地显示 |
1 | 就地显示 | |
通讯方式 | 0 | 无通讯 |
1 | RS485 | |
2 | RS232 | |
3 | Modbus | |
4 | Hart | |
接地环 | 0 | 无接地环 |
1 | 有接地环 | |
2 | 有接地电极 | |
上限流量 | （n） | 上限流量（量程）m3/h |
仪表口径的确定：
口径mm | 流量范围m3/h | 口径mm | 流量范围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 |
DN15～DN150一体型和传感外形图 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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法兰尺寸(标准:GB/T9119) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| DN200～DN600一体型和传感外形图 | 外形尺寸和重量 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| 法兰尺寸(标准：GB/T9119) |
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Description
Insertion magnetic flow meter is a new kind of product based on pipeline flowmeter.
By principle of Nikuradse, it measures the average flow velocity of liquid with electromagnetic methods to get volume flow of liquid, which keeps the advantage of pipeline flowmeter and overcomes the shortage of installation difficulty and high cost. Especially the application of pipeline piercing and installing under pressure technology, insertion magnetic flow meter can be mounted without stopping water supply and it can be also installed on cast-iron pipeline and cement pipe.
The invention of this flowmeter has offered a new way to measure fluid flow. The operating principle is the same as magnetic flow meter. That is Faraday's law of electromagnetic induction
Features
? Insertion magnetic flow meter can be easily mounted without cutoff water supply and pierce pipeline under pressure on site. It has great advantage in installation and price.
? Applicable for measuring flow of liquid like water, sewage, acid, alkali. Etc, whose conductivity is beyond 20cm. The change of conductivity doesn’t affect its function. It can adapt complicated flow change, especially the flow measurement of water supply and drainage pipe.
? The mechanical moving parts of flowmeter, converter adopt optimized design with closed structure, easy installation and interchangeability between converter and sensor.
? Flow measurement is only related with insertion depth. So, this kind of flowmeter can be used in wide range and good interchangeability. One module can meet the needs of various pipeline size. It can connect with any standard secondary instrument.
Specifications
Technical parameters | |
Diameter: | DN300-DN3000 |
Flow velocity: | 0.1-10m/s |
Accuracy: | 0.1~10m/s:±2.5%FS (FS is full flow range of 40%~) |
Conductivity: | > 50us/cm |
Medium temp.: | -20℃~+30℃ |
Ambient temperature: | -20℃~+60℃ |
Pressure: | 1.6MPa |
Protection class: | IP65(compact type) IP68(remote type) |
Electrode material: | Stainless 316L |
Output signal: | 4-20mA;RS485;HART;MODBUS |
Power supply: | 220V AC (tolerance 15%) or 24V DC (ripple wave≤5%) |
Measuring range
Size | Flow rate unit (m3/h) | |
V = 0.5 m/s | V= 10 m/s | |
mm | Min. | Max. |
300 | 127 | 2545 |
350 | 173 | 3464 |
400 | 226 | 4523 |
450 | 286 | 5725 |
500 | 353 | 7069 |
600 | 509 | 10180 |
700 | 692 | 13847 |
800 | 904 | 18086 |
900 | 1145 | 22891 |
1000 | 1413 | 28260 |
1200 | 2035 | 40694 |
1400 | 2769 | 55390 |
1600 | 3617 | 72346 |
1800 | 4578 | 91562 |
2000 | 5652 | 113040 |
2200 | 6839 | 136778 |
2400 | 8139 | 162778 |
2600 | 9552 | 191038 |
2800 | 11078 | 221558 |
3000 | 12717 | 254340 |
Application
Electromagnetic flow meter is a kind of speed meter has a high accuracy and realibility and is widely used in petroleum, chemical engineering, steel, food, electricity, papaer, water treatment, water supply, heat supply, environmental protection and other industries.
Ordering guide
Selection code | Notes | ||||||||
| WFLDE | |||||||||
Diameter | DN100-DN3000 | ||||||||
Pressure range | 1 | 1.6MPa | |||||||
Connection | 1 | With measuring pipe | |||||||
2 | Without measuring pipe | ||||||||
Measuring pipe material | 1 | Carbon steel | |||||||
2 | 304SS | ||||||||
Liner material | 1 | ABS | |||||||
2 | PTFE | ||||||||
Electrode material | 1 | Stainless steel containing Mo. | |||||||
2 | 316L | ||||||||
Structure | 1 |
Compact type | |||||||
2 | Remote type | ||||||||
3 | Remote, immerse | ||||||||
4 | Compact Ex | ||||||||
5 | Remote Ex | ||||||||
Power supply | E | 220VAC 50Hz | |||||||
G | 24VDC | ||||||||
Output/communication | A | Volume flow 4~20mADC/pulse | |||||||
B | Volume flow 4~20mADC/RS232C | ||||||||
C | Volume flow 4~20mADC/RS485 | ||||||||
D | Volume flow HART/communication | ||||||||
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