Abstract: how to select the metal tube flow meter scale information produced by excellent flow meter, flow meter manufacturer to offer you the quotation.
How to select the product overview of metal tube float flowmeter flow meter is commonly used in industrial automation process control of a variable area flow meter.
It has small volume, wide detection range, convenient use, etc.
It can be used to measure the liquid.
More flow meter manufacturers choose model price quote you are welcome to inquire, here is how to select the metal tube flow meter scale article details.
How to select the product overview of metal tube float flowmeter flow meter is commonly used in industrial automation process control of a variable area flow meter.
It has small volume, wide detection range, convenient use, etc.
It can be used to measure the rate of flow of liquid, gas and steam, especially suitable for low velocity of small flow of medium flow measurement.
It has intelligence have on the display and intelligent remote transmission, with a pointer display instantaneous/cumulative flow, liquid crystal display (LCD), the lower limit alarm output, cumulative pulse output, batch control, the standard two wire 4 ~ 20 ma output current, and other forms.
Provides users with a very broad choice space.
The other the instrument adopts the advanced central microprocessor chip and high quality industrial components.
According to different measuring tube structure, the first instrument technology metal pipe flow meter can choose a different sounding pipe form according to the customer's request, has further perfect in maintenance and cleaning.
On this basis, the match type intelligent metal tube flow meter indicator, can constitute a intelligent metal tube flow meter.
Over the years, various excellent performance and reliability of metal tube float flowmeter, and good performance/cost ratio.
Widely by the petrochemical, steel, electric power, metallurgy, light industry, food, pharmaceutical, water treatment.
Structure principle 1, HLZ series of metal tube float flowmeter is mainly composed of two parts: the measuring tube HR -
F indicator.
Measuring pipe including cone or orifice plate, guide, stop, float and other components, indicator including magnetic servo system, pointer, engraved plate, circuit components, etc.
2, the working principle of bottom-up measured medium flows through the top and bottom end of sounding pipe float the differential form upward force, when the float is greater than in the rising force in the fluid in the float weight, float up, clearance area increase, the gaps in the fluid velocity drops rapidly, float up and down the differential pressure is reduced, applies to float up with reduced, until the lift float weight balance and immersed in the fluid, the float is stable at a particular location, float position of instant corresponds to the size of the measured medium flow.
Move up and down in float float the built-in magnet steel, medium, magnetic field changes with the movement of the float.
一个。
For in situ type, by in situ indicator within the follow-up magnetic steel and the float of magnetic coupling and turning, drives the pointer at the same time, through the dial indicates that the flow at this time.
b。
For intelligent by intelligent indicator of follow-up magnetic steel and the float inside the magnetic coupling, and rotation.
Sensing magnetic steel and pointer at the same time, through A magnetic sensor to magnetic field changes into electrical signals, after A/D conversion, digital filtering, temperature compensation, microprocessor processing, D/A output, LCD liquid crystal display (LCD), to show the size of the instantaneous flow and cumulative flow.
Suitable for small diameter low velocity of gas, liquid and steam flow measurement.
2.
Magnetic coupling principle of high voltage without leakage.
3.
High temperature resistant, up to 450 ℃.
4.
Should not be affected by a certain viscosity, measuring high viscosity medium.
5.
When the flow rate is in excess of 100 m3 / h water flow, pressure loss.
6.
For process control instrument, zui good accuracy is 1%, general is 1.
5%, the range than 10:1.
7.
The explosion-proof, flameproof all Ann, suitable for dangerous situations.
8.
With in situ pointer type, cell type, two wire, 220 v ac power supply, and other forms to choose from.
9.
Zui on appropriate installation for the next into the vertical installation.
10.
Measuring high temperature and low temperature (
-
Below 30 ℃)
Medium, zui good used of model.
11.
Not suitable for measuring large medium density change.
12.
Not suitable for measuring pulse medium flow (
Such as metering pump export)
。
13.
For gas in no temperature pressure compensation, need to consider separately.
14.
For more than one instrument installation or dense carbon steel piping through the instrument near to the instrument to keep a distance of more than 100 mm, avoiding interference magnetic field.
15.
Contains a lot of ferromagnetic particles medium flow measurement, to add magnetic filter in front of the instrument, and purging time.
16.
Metal tube flow meter requirement for straight pipe is not high, generally for the first 5 d after 250 mm.
17.
If choose flame-proof occasions to use instrument, should choose round shell M4 indicator.
18.
Flowmeter OC gate way, high and low alarm is usually open collector current amplification should be carried out with relay, and optional relay output type, contact capacity of a 30 VDC @ 1 or 0.
25 a @ 250 vac or 0.
5A@125VAC。
Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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