『Installation Specification for Electromagnetic Flow Meter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
1. The correct method for installing electromagnetic flowmeter
The correct method for installing electromagnetic flowmeter. Electromagnetic flowmeter is now widely used. Due to its own characteristics, in order to better use and install it, improve the efficiency of product use, and achieve twice the result with half the effort, the following will explain the installation knowledge of electromagnetic flowmeter. Proper installation of electromagnetic flowmeter: The installation orientation of electromagnetic flowmeter can be roughly divided into two types: horizontal installation and vertical installation. The appropriate orientation can effectively avoid the accumulation of residue inside the measuring tube and gas accumulation.
1、 Same potential communication is ensured by installing a ground reference electrode inside the sensor. Sensors and media need to have the same potential to ensure the avoidance of electrode corrosion damage and measurement accuracy. If it is uncertain whether the medium is correctly grounded, a grounding ring should be installed. If the medium flows in an unlined grounded metal tube, it can meet the grounding requirements by connecting to the transmitter housing. Separate grounding is the same as above.
2、 Regarding the support and base, if the nominal diameter is DN ≥ 350, the transmitter must be installed on a base that can withstand sufficient load during installation. The outer frame cannot be used to bear the weight of the sensor, as this will cause deformation of the outer frame and damage to the internal excitation coil. When installing sensors, it is best to avoid components such as bends, tees, valves, etc., if conditions permit.
3、 Horizontal installati
4、 Vertical installation: This orientation is very suitable for easy self emptying pipeline systems and can omit the electrode for detecting empty pipes.
5、 Ensure the length of the inlet and outlet straight pipe sections; 10 x DN outlet length; The 5 × DN sensor and transmitter grounding sensor are located at the center of the pipeline to ensure measurement accuracy. Incorrect installation of electromagnetic flowmeter:
1. In order to avoid damage to the lining of the measuring tube caused by low pressure in the field, if the total length of the downstream pipeline exceeds five meters, a siphon or vent valve needs to be installed at the back end of the sensor to ensure full pipeline and reduce gas content.
2. When installing the pipeline, choose the highest point, which can easily cause bubble accumulation
3、 Installing a flow pipe on the inlet side of the pump causes damage to the lining of the flow pipe due to pumping pressure. If using a plunger pump, diaphragm, or reciprocating, a pulse throttle valve needs to be installed.
4、 Install the flowmeter directly in front of the opening of a downstream pipeline. Ultrasonic flowmeter
2. Installation precautions for electromagnetic flowmeter
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