Installation method of quality flowmeter

『Installation method of quality flowmeter』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. Correct installation method of mass flow meter

The structure of mass flow meter includes sensor, chain sock thermal element, mass flow controller regulating valve, and amplification circuit. It measures the mass flow rate of gas by measuring the thermal conduction distribution effect of changing the temperature distribution of the measuring capillary tube through the transfer of heat from the fluid. Amplify the flow signal measured by the sensor, compare it with the set voltage, and drive the regulating valve through the difference to achieve closed-loop control of the flow rate, making it equal to the set flow rate. When connecting the mass flow meter to the pneumatic circuit, different materials of pipe fittings can be selected according to requirements, such as metal pipes, plastic pipes, etc. The default connection form for LF series gas mass flow meters and flow controllers is double card sleeves, with a connecting pipe size of Φ 6. The wiring plug adopts DB9 pin socket, and the wiring method is shown in the figure. The signal 0V and power ground (0V) are connected inside the flow controller, and the "Earth" is the grounding wire of the casing, which should be connected to the metal shielding mesh of the control cable. Effective shielding, isolation and other measures should be taken at the DC power supply to prevent interference signals from entering the flow meter system. Connect the "Earth" line to a DC power supply of 0V directly or through a large capacitor to achieve one point grounding, forming zero, ground and other potentials, effectively resisting interference. Avoid the formation of strong ground current circuits caused by metal casings, which may burn out the internal circuits of the flow c

Installation method of quality flowmeter

ontroller. Following the principle of grounding, insulation, isolation and other methods are used to prevent the formation of grounding circuits. During use, zero offset may occur, which can be adjusted in two ways: external zeroing and internal zeroing. External zeroing is performed on the flow display dashboard or external adjustment mechanism, while internal zeroing is performed through the zeroing hole on the flow controller. The zero adjustment hole is located on the left side of the flow controller, and there is a zero adjustment potentiometer inside. When zeroing, the gas source should be cut off and the valve control switch should be placed in the "off" position. Zeroing should be carried out after preheating for 15 minutes to ensure the stability of the zero point of the flowmeter. Except for the zero potentiometer, other potentiometers should not be easily adjusted.

2. Can mass flow meters be installed vertically?

Mass flow meters can be installed vertically, but the specific installation method needs to be adjusted according to the different measuring media: when measuring liquid, the sensor housing should be installed facing downwards, that is, the inlet and outlet of the flow meter should face downwards, to avoid air accumulation in the flow tube and affect measurement accuracy.

. When measuring liquid slurry: the sensor should be installed vertically, like a flag, and the process medium should flow from bottom to top, which can effectively prevent particles from accumulating in the flow tube and avoid the occurrence of small and small phenomena in the jet tube. Therefore, in vertical installation of mass flow meters, the appropriate installation method should be selected based on the type

Installation method of quality flowmeter

1. Correct installation method of mass flow meter

2. Can mass flow meters be installed vertically?

『SILVER Official Website SERVICE』