7 performance characteristics of intelligent precession vortex flowmeter:
1. The intelligent precession vortex flowmeter has built-in pressure, temperature, flow sensor, high safety performance, compact structure and beautiful appearance.
2. Local display of temperature, pressure, instantaneous flow and cumulative flow.
3. The intelligent precession vortex flowmeter uses a new type of signal processing amplifier and a unique filtering technology to effectively eliminate the interference signals generated by pressure fluctuations and pipeline vibrations, which greatly improves the anti-interference ability of the flowmeter and makes the small flow rate excellent. stability.
4. Unique time display and real-time data storage function, no matter what the situation, can ensure that the internal data will not be lost, can be permanently saved.
5. The power consumption of the whole machine is extremely low, and it can run with the internal battery for long-term power supply. It is an ideal display instrument without external power supply.
6. The anti-theft function is reliable, with password protection to prevent parameter changes.
7. The head of the intelligent precession vortex flowmeter can be rotated freely at 180 degrees, which is convenient for installation.
Intelligent precession vortex flowmeter installation and maintenance methods:
Improper installation and maintenance of the precession vortex flowmeter will affect the measurement accuracy and other performances, and will cause the instrument to work improperly when serious: when moving and lifting the electromagnetic flowmeter, the sling should be sleeved at the neck of the flowmeter flange In order to avoid damage to the lining, at the same time, the wiring socket of the screw-in vortex flowmeter should be prevented from being damaged by collision.
It must be ensured that the center of the precession vortex flowmeter is the same as the center of the process pipeline, and the ground wire is connected, otherwise it will cause errors.
Selection of the environment of precession vortex flowmeter:
1. In a dry and ventilated place, avoid damp and easy to accumulate water;
2. Avoid sun and rain. The rain water should be covered in the open air;
3. Avoid strong vibration as much as possible;
4. Avoid strong electromagnetic field equipment, such as large motors, large transformers, etc .;
5. Easy maintenance and convenient activities.
Correct grounding of precession vortex flowmeter:
In order to make the precession vortex flowmeter work reliably, improve the measurement accuracy, and not be disturbed by the external parasitic potential, the electromagnetic flowmeter should have a good separate ground wire, and do not connect the ground wire to the common ground wire of the motor or other equipment. Ground resistance <10Ω.
Under normal circumstances, the process pipe is a metal pipe, which is itself grounded; if the inner wall of the process pipe is coated with an insulating layer or a non-metallic pipe, a grounding ring should be installed on both sides of the precession vortex flowmeter. However, when the external electromagnetic field interference is large, especially when the power frequency and other stray currents on the pipeline are large, a separate grounding device should be provided. Generally, a copper rod with a depth greater than 1m is buried in a humid place, and the total cross section is greater than 4mm The multi-strand copper wire is a ground wire connected to the ground end of the electromagnetic flowmeter.
The maintenance sequence of the screw-in vortex flowmeter:
The precession vortex flowmeter generally does not require daily maintenance, but when the measured medium is easy to adhere or scale on the electrode and the inner wall of the measuring tube, the inner wall and electrode of the measuring tube must be cleaned regularly, taking care not to damage the lining and electrode.
When the precession vortex flowmeter fails, please refer to the table below to find, analyze the causes, and eliminate the failure one by one.
1. Measure whether the medium in the tube is full, whether the lining and electrodes are scaled;
2. Are all cable connections reliable?
3. Whether the grounding requirements are met;
4. Whether the excitation coil is short-circuited or broken, and whether it is insulated from the ground;
5. Whether the medium in the piping system is leaking, whether the upstream and downstream valves are affected, and whether the installation position is suitable;
6. Whether the surrounding environment interferes with the flowmeter;
7. Whether the converter is malfunctioning. (Organized by China Educational Equipment Purchasing Network)
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