分体式电磁流量计
电磁流量计可用于测量封闭管道中导电流体的体积流量。它广泛应用于化工和石油工业、冶金工业、水和废水处理、农业和灌溉、造纸、食品和饮料工业以及制药工业等领域的流量测量和控制。
当导电流体流经传感器的测量管时，电极上会感应出与流体平均流速成正比的电压信号。信号经变送器放大和处理后实现各种显示功能。
自验收之日起一 (1) 年内，所有仪表均保证无工艺和材料缺陷。
特点
▲ 测量结果与速度分布、流体压力、温度、密度、粘度等物理参数无关。
▲ 在现场，可根据用户的实际需求在线修改范围。
▲ 高清背光液晶显示屏，全中文菜单操作，使用方便，操作简单，易学易懂。
▲ 全数字处理，抗干扰能力强，测量可靠，精度高，流量测量范围可达 150:1。
工作原理
Electromagnetic flow meters are flowmeters that measure flow according to Faraday’s law of electromagnetic induction. Electromagnetic flowmeters have the advantage of minimal pressure loss and a large range of measurable flow rates. The ratio of the maximum flow rate to the minimum flow rate is generally more than 20:1. The applicable industrial tube diameter is wide, up to 3 meters. The output signal and the measured flow rate are linear, and the accuracy is high. The conductivity can be measured ≥5μs/cm. Acid, alkali, salt solution, water, sewage, corrosive liquids, and fluid flow of mud, pulp, pulp, etc. However, it cannot measure the flow of gas, steam, and pure water.
The main technical indicators:
| Nominal diameter | DN15~DN2000 |
| 准确性 | ±0.2%,±0.3%,±0.5% |
| Measurement range (flow rate) | 0.01m/s~15m/s |
| Conductivity of medium | more than 5μS/cm |
| Nominal pressure | 0.6MPa,1.0MPa,4.0MPa |
| Protection grade | IP65,IP67,IP68 |
| Electrode material | Stainless steel 316L,Hastelloy B, Hastelloy C, Titanium alloy, Tantalum alloy, Platinum-iridium alloy, Stainless steel-coated tungsten carbide and other special material . |
| Lining material | Neoprene,Polyurethane rubber,natural rubber, nitrile rubber, Teflon(PFA),Polytetrafluoroethylene(PTFE), fluorinated ethylene propylene (FEP OR F46), ceramics. |
| 连接 | Flange connection [GB/T9119-2010 standard] |
| Ambient temperature | -10℃~50℃ |
| Power supply | AC220V/DC24V/DC3.6V |
| Signal output | Analog 4mA-20mA, 0Hz~ 5 KHz frequency, two alarm outputs: high limit alarm and low limit alarm |
| Communication | RS485,RS232,MODBUS,HART,PROFIBUS-DP ( OPTIONAL) |
Expression of electromagnetic flowmeter caliber:
The expression of the electromagnetic flowmeter caliber is three digits, the first two are the first and the second.
Number of caliber, the third digit means number of 0.
For example, code 150 indicates a caliber of 15 mm; code 151 indicates a diameter of 150 mm; code 152 indicates a caliber of 1500.
