The electromagnetic flowmeter (plug-in split) consists of two parts: a sensor and a converter. It works based on Faraday's law of electromagnetic induction and is used to measure the volumetric flow rate of conductive liquids with a conductivity greater than 5 μ S/cm. It is an inductive instrument for measuring the volumetric flow rate of conductive media. In addition to measuring the volumetric flow rate of general conductive liquids, it can also be used to measure the volumetric flow rate of strong corrosive liquids such as strong acids and alkalis, as well as homogeneous liquid-solid two-phase suspensions such as mud, slurry, and pulp. Widely used in industrial sectors such as petroleum, chemical, metallurgical, textile, papermaking, environmental protection, food, as well as municipal management, water conservancy construction, river dredging and other fields for flow measurement.

The measurement principle of electromagnetic flowmeter (plug-in split) is based on Faraday's law of electromagnetic induction. The sensor part is composed of coils and electricityComposed of polar and insulating liningWhen measuring, the excitation coil in the sensor is energized to generate a magnetic field. When the conductive fluid passes through the magnetic field, a small induced electromotive force is generated due to the cutting force of the magnetic field lines. These small induced electromotive forces are collected by the electrodes and transmitted to the converter part of the instrument for signal amplification, correction and other operations. Then, they are converted intoThe corresponding flow data is ultimately displayed on the instrument.

When a conductive fluid flows through a magnetic field perpendicular to the flow direction, the conductive liquid induces an induced voltage E proportional to the average flow velocity. The induced voltage is detected by two electrodes in direct contact with the fluid, amplified, filtered, and shaped by a converter, and sent to the MCU to display and output control the instantaneous flow rate and cumulative flow rate.

E=KBVD In the formula: E - Induced voltage K - Instrument constant B - Magnetic induction intensity V - Average flow velocity inside the measuring tube D - Diameter of the flowmeter

• The sensor has no moving parts inside, simple structure, strong rigidity, and long working life.

• The sensor probe is made using the latest technology, greatly improving product stability.

• The plug-in electromagnetic structure can be easily installed and disassembled without stopping water under low voltage or pressure conditions. Therefore, it is highly suitable for fluid measurement in existing pipelines and facilitates maintenance and repair of instruments.

• The measurement accuracy is not affected by the temperature, pressure, density, viscosity, or conductivity of the measured medium (as long as the conductivity is greater than)The influence of changes in physical parameters such as 20 μ s/cm; The sensor has almost no pressure loss and extremely low energy loss.

• The manufacturing and installation costs of flow meters are lower than those of general flow meters. Especially suitable for flow measurement of large and medium-sized pipelines.

• There are two installation structures to choose from: flange type and threaded type.

Electromagnetic flowmeter (plug-in split) complete machine and sensor technical data

Technical data of electromagnetic flowmeter (plug-in split) converter

Electromagnetic flowmeter (plug-in split) flow measurement range:

General requirements

• For the convenience of installation, maintenance, and upkeep, sufficient space should be reserved around the flowmeter

• Avoid installing flow meters in places with large temperature changes or high temperature radiation from equipment

• Flow meters should be installed indoors. If installed outdoors, direct sunlight should be avoided and sun protection devices should be installed if necessary

• Avoid installing flow meters in environments containing corrosive gases

• Avoid installing flow meters in places with strong vibration sources and magnetic fields

Process management requirements

• The inner diameter of the upstream and downstream process pipes and the inner diameter of the flow meter should meet the following requirements: 0.98DN ≤ D ≤ 1.05DN (DN: flow meter inner diameter; D: Inner diameter of process pipe

• The process pipe and flow meter should be concentric, with a coaxial deviation of no more than 0.05DN

Installation conditions andRequirements for straight pipe sections

The use of straight pipe sections can prevent the medium from being affected by bent pipesVortex or distortion caused by the influence of TT type three-way valve, globe valve, and variable diameter pipe