working principle:

An electromagnetic flowmeter is an inductive instrument that measures the volumetric flow rate of a conductive medium inside a tube based on Faraday's law of electromagnetic induction.

line type

threaded

Clamp connection

structural classification

Integrated electromagnetic flowmeter: The converter and sensor are directly assembled as a whole and cannot be separated. Commonly used in sites with good environmental conditions.

Split type electromagnetic flowmeter: The converter is composed of a dedicated cable and a sensor to form a product. The sensor is installed on site, and the converter is installed in a location with better conditions. Commonly used in areas with poor environmental conditions, such as wells, high temperatures, and places that are difficult for personnel to reach.

1. The instrument structure is simple, reliable, with no incomprehensible components, and has a long working life
2. No flow blocking components, no pressure loss or fluid blockage phenomenon
3. The measurement accuracy is not affected by the type of measured medium and its physical parameters such as temperature, viscosity, and pressure, and has high precision
4. Using PTFE lining and HC HB、316L、 Different combinations of electrode materials such as titanium can meet the needs of different media
5. Wide measurement flow range, with a range ratio of 20:1 and 50:1

Product parameters:

Selection of electrodes:

Lining Material List:

Flow range confirmation:

The flow rate of the measured medium in general industrial electromagnetic flow meters should be 2-4m/s. In special cases, the minimum flow rate should not be less than 0.2m/s and the maximum should not be greater than 8m/s. If the medium contains solid particles, the commonly used flow velocity should be less than 3m/s to prevent excessive friction between the lining and the electrode; For viscous fluids, the flow velocity can be chosen to be greater than 2m/s. A higher flow velocity helps to automatically eliminate the effect of viscous substances attached to the electrode, which is beneficial for improving measurement accuracy.

Selection Notice：

1. The actual maximum working pressure must be less than the rated working pressure of the electromagnetic flowmeter.
2. The minimum and maximum operating temperatures must comply with the temperature requirements specified by the flowmeter. (See parameter table for details)
3. From an economic perspective, it is possible to choose a flow meter with the appropriate diameter corresponding to the flow rate. (See flow range table for details)
4. Select the appropriate accuracy level based on the measurement purpose and function.
5. Select appropriate lining materials based on the corrosiveness, wear resistance, and temperature of the medium.
6. Choose between using an integrated electromagnetic flowmeter or a split type electromagnetic flowmeter based on the requirements and environment of the installation site.

The specific choices are shown in the table below:

Installation requirements:

When the system is running normally, the measuring tube must be kept full. If there is a non full tube, the flowmeter cannot work properly, and the reading may be a random number that fluctuates between large and small.

2. Flow meters should be avoided from being installed in places with large temperature changes or high temperature radiation. If installation is necessary, insulation and ventilation measures must be taken.

3. It is best to install flow meters indoors. If they must be installed outdoors, they should be protected from rainwater, waterlogging, and direct sunlight. Moisture and sun protection measures should be taken.

4. Flow meters should be avoided from being installed in environments containing corrosive gases, and ventilation measures must be taken when installation is necessary.

5. Flow meters should be avoided from being installed in areas with strong magnetic fields and vibration sources. If there is significant pipeline vibration, fixed pipe supports should be installed on both sides of the flow meter.

For the convenience of installation, maintenance, and upkeep, there should be ample installation space around the flowmeter.

Installation diagram: