2015年8月15日星期六

what's the flow meter to measure alcohol,ethyl alcohol ?

Alcohol flow meter, also known as turbine flowmeter, turbo meter measurements. It is first converted to a flow rate of the turbine speed, then speed is converted into an electrical signal proportional to flow. This flowmeter for detecting the instantaneous flow rate and total flow totalizer, the output signal frequency, easy to digitize. Figure in the induction coil and the permanent magnet fixed to the housing together. When the ferromagnetic turbine blade through the magnet, the magnetic circuit reluctance changes, resulting in induction signal. Signal is amplified and shaped to the counter or frequency meter, displays the total integrated flow. While the pulse frequency through frequency - voltage converter to indicate flow rate. Impeller speed is proportional to the flow rate, the number of revolutions of the impeller is proportional to the total flows. Output of the turbine meter is the frequency modulated signal, not only to improve the anti-interference detection circuit, and simplifies the flow detection system. Its range of up to 10: 1, accuracy of ± 0.2%. The time constant inertia and small size of the turbine meter up to 0.01 seconds.


Attention:
1)When used, the measured liquid should be kept clean and free of fibers and particles and other impurities.
2) sensor at the beginning of use, the sensor should first slowly filled with fluid, and then open the outlet valve,
Impact of high velocity fluid sensor is strictly prohibited without liquid state.
3) sensor maintenance cycle is generally six months. Overhaul cleaning, take care not to damage the measurement chamber parts, special
Do impeller. Please optimistic about the positional relationship between the guide and the wheel assembly.
4) sensor when not in use, clean the inside of the liquid, and at both ends of the sensor plus the protective cover to prevent dust entering,
Then save in a dry place.



没有评论:

发表评论