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Digital variable area flowmeter

Digital variable area flowmeter
Digital variable area flowmeter
Product Code : 49
Product Description

Origin of Metal Tube Rotameter

It operates on the principle of variable area; the fluid in the metal tube raised a float in the taper tube increasing the area of passage of fluid. The float moves up in proportion to the rate of flow of fluid and get stabilized when the weight of the float is balanced by the upward hydraulic force. By a magnetic coupling the inner float movement through a series of linkages and counter weight. The tube and the float combination determine the flow rate. The inner float magnetic field is detected by the high sensitive magnetic field detection sensor, enable us to show the digital readout.As such this flow meter does not require any electrical connection, since it operates on battery. It has an inbuilt two wire transmitter provide 24 VDC and take 4 - 20 mA signal.

Benefits of  Digital Variable Area Flow Meters :

  • Local Indication without the need for auxiliary power
  • Minimum Pressure loss.
  • Easy to read
  • Accurate measurement even at higher flow (150 m 3 / hr)
  • Suitable for low flow (8 LPH)s
  • Default inbuilt transmitter of 4-20 mA (Loop Powered)
  • No movement assembly reducing the maintenance

Technical Specification :

Accuracy

+/- 1.5% of FSR.

Range ability

10:1

Repeatability

+/- 0.25% of FSR

Temperature Rating

-50 to 120 °C.

Pressure Rating

80 kg/cm2

Flow Direction

Bottom to Top

End connection

Flanged to suit customer’s requirement.

Wetted Part

To suitable specific liquid or gases.

Mounting position

Vertical.

Indication

Digital flow rate

Transmission

2 wire loop powered

Enclosure

Flameproof / Weatherproof.

Power supply

9 VDC Battery

Maximum Flow And Pressure Loss

LINE SIZE

20oC WATER FLOW

0oC 1 atm AIR FLOW

APPROX PRESSURE LOSS

NB

m3/hr

Nm3/hr L

MM WC

15

0.2 - 1.2

6 - 35

200 - 225

20

0.4 - 2.0

8 - 60

220 - 230

25

1-5

30 - 150

200 - 270

40

2.5 - 10

70 - 300

200 - 250

50

3.5 - 17

100 - 500

225 - 280

85

6 - 30

200 - 900

225 - 240

80

10 - 45

300 - 1200

225 - 280

100

20 - 100

600 - 3000

350 - 850

125

30 - 120

900 - 4000

300 - 850

150

30 – 150

900 – 4500

350 - 950


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