『Flow meter LCD display module』Related information(v cone flow meter|rotary gas meter|gallon meter|gear meter|metal tube rotameter|glass tube rotameter|nutating disk meter|transit time ultrasonic flow meter|wedge flow meter|pd meters|hydraulic flow meter|ultrasonic water flow meter|water flow meter|air flow meter|magnetic water flow meter|oxygen flow meter|gas flow meter|argon flow meter|air velocity meter|gasoline flow meter|fuel flow meter|ultrasonic water meter|digital water meter|nitrogen flow meter|solid flow meter|Oxygen tank flow meter|digital water flow meter|diesel fuel flow meter|steam flow meter|02 flow meter|compressed air flow meter|oil flow meter|liquid flow meter)
1. Which quality flow controller should I choose?
2. The principle of electromagnetic flowmeter and related modules
According to the principle of electromagnetic induction of the flange, Li Huizheng installed a pair of detection electrodes on the pipe wall perpendicular to the axis of the measuring pipe and the magnetic field lines. When the conductive liquid moves along the axis of the measuring pipe, the conductive liquid cuts the magnetic field lines and generates an induced potential. This induced potential is detected by the two detection electrodes, and the numerical value is proportional to the flow velocity. Its value is E=B * V * D * K, where E is the induced potential, B is the magnetic induction intensity, and V is the average flow velocity of the conductive liquid;; D is the electrode spacing; K is a coefficient related to the axial length of the magnetic field distribution; The sensor uses the induced electromotive force as a flow signal, which is transmitted to the converter. After signal processing such as amplification, transformation, and filtering, the instantaneous and cumulative flow rates are displayed on a backlit dot matrix LCD.
3. Instructions for using the Wiltec flowmeter
The core of using the Wiltec WT4300E3 electromagnetic flowmeter can be summarized into five operational steps: correct installation → parameter setting → calibration → usage monitoring → regular maintenance. During the process, special attention should be paid to the program protection switch status, calibration cycle, and environmental adaptability.
.1. Usage: 1 Installation steps • Pipe car slide connection: Install according to the flow direction of the medium, and the flang
2. Parameter settings • After entering the menu, you must first set "PROG. Protection" to "OFF" to unlock, otherwise the parameters cannot be saved. • Configure the pipe diameter size, flow unit, and output signal type (such as 4-20mA or pulse) according to the working conditions, and the pulse coefficient setting should be combined with instrument constant conversion
3. Calibration operation • Perform zero point calibration under empty pipe state to eliminate electrode interference. • Perform full-scale calibration using standard table comparison method or calibration weight method to ensure accuracy within ± 0.5%
4. Operation monitoring • Observe the instantaneous flow screen display after startup, with units such as m ³/h and L/min available, and the range percentage display intuitively reflects the current load. Accumulated traffic can be divided into forward, reverse, and total accumulated values, which can be switched and viewed through panel buttons. The data is automatically saved after power failure. • The pulse output terminal can be connected to PLC or counter, with pulse equivalent=flow unit/pulse number, which needs to be matched with the parameters of the upper computer
5. Maintenance specifications • Clean the electrodes and lining quarterly, wipe them with a soft cloth dipped in neutral cleaning agent to prevent scaling from affecting conductivity detection. Check that the grounding resistance is not greater than 10 Ω
Hot Blog
Related AD
