Jiangsu Baichuang Instrument Group Co.,Ltd
| Unités de vente | : | Set/Sets |
Comment ça fonctionne
The dual-channel ultrasonic flowmeter/heat meter measures the actual flow rate at each point in the pipeline through two groups of sensors, simulates the flow rate distribution in the pipeline during actual operation, and solves the accuracy of converting linear speed V into surface speed Ѷ pour améliorer la précision globale de la mesure de l'instrument.
Le débitmètre ultrasonique à double canal / mètre de chaleur transmet et reçoit des ondes ultrasoniques les unes aux autres à travers les capteurs supérieur et en aval. Lorsque le faisceau à ultrasons se propage dans le liquide, l'écoulement du liquide apportera un petit changement dans le temps de propagation, et le changement du temps de propagation est proportionnel au débit du liquide, comme le montre la figure.
Indice de performance principal
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Item |
Performance, Parameters |
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Measuring
Host |
Fineness |
Level 2 |
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Repeatability |
0.5% |
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Velocity range |
0.1 ~ ±7 m/s。 |
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Measurement principle |
Ultrasonic propagation time difference principle, 32-bit CPU operation, 8-byte double floating point operation. |
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Measurement period |
50mS. (20 times per second, 64 sets of data are collected per cycle). |
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Display |
2×10 or 4*8 backlit Chinese character LCD display, low power consumption for segment code LCD display. |
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Operation |
4×4 keypad /4 key input. |
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Input |
Two three-wire PT100/PT1000 platinum resistance input circuits can realize the function of heat metering |
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Export |
Current signal: 4~20mA, impedance 0~500, floating, accuracy 0.1%FS. Pulse signal: positive, negative, net flow and heat cumulative pulse OCT output. Data interface: Standard isolated RS-485 interface. |
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Other Functions |
Memory day, month, year cumulative traffic. Fault self-diagnosis function; Network working mode, etc. |
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Inductor |
External clamp type: small standard S1 type, suitable for pipe diameter DN15 ~ DN100mm Medium standard M1 type, suitable for pipe diameter DN50 ~ DN700mm Large standard L1 type, suitable for pipe diameter DN300 ~ DN6000mm |
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Insert type: The measuring pipe material is not limited (weldable, non-weldable can be) suitable for pipe diameter DN80 or more. |
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Standard pipe segment: suitable for pipe diameter DN50-DN2000 |
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Cable Length |
Can be extended to 100m (more than this length please contact the manufacturer). |
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Pipeline |
Lining |
Steel, stainless steel, cast iron, hard plastics, cement pipes and other dense pipes, allowing lining. |
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Inside diameter |
10mm - 6000mm。 |
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Length of straight pipe section |
Upstream ≥10D, downstream ≥5D, ≥30D from the pump outlet. |
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Fluid |
species |
Water, seawater, acid lye, food oil, steam, coal, diesel, crude oil, alcohol, beer and other uniform liquids that can spread ultrasonic waves. |
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turbidity |
≤10000 ppm, and small bubble content. |
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temperature |
-10~150℃。 |
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Flow direction |
The positive and negative flow can be measured separately, and the net flow can be measured. |
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Working
environment |
temperature |
Host: -10-70℃ (greater than this temperature range, please contact the manufacturer) Probe: -30℃ ~ +150℃ |
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humidity |
Host: 85%RH Probe: can be immersed in water, water depth ≤3 meters. |
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Electric source |
Ordinary version: DC24V, AC220V power supply mode. Low-power version: 3.6v lithium battery / 9~36V. |
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Le débitmètre thermique à ultrasons à deux canaux est le type le plus courant de notre débitmètre froid ou thermique , qui est également l'un des compteurs les plus vendus. En plus de la production de débitmètre froid ou de chaleur, nous produisons également le débitmètre et le compteur ou les instruments de niveau , si vous êtes intéressé, veuillez nous contacter.
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