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Digital Metal Tube Rotameter

Digital Metal Tube Rotameter
Digital Metal Tube Rotameter
Product Code : 40
Product Description

Origin of Metal Tube Rotameter

It works on the law of variable area - the fluid in metal tube upraised a float in taper tube, which increases the area of fluid passage. The float moves up in proportion to fluid flow rate and get stable when the float weight is balanced through upward hydraulic force. With a magnetic coupling, the movement of inner float by a series of counter weight and linkages. The tube as well as the float unit determines the rate of flow.

Digital Meter: High sensitive sensor for magnetic field detection is there to find out the inner float magnetic field. It enables us to display the digital read out. As it operates on battery, this flow-meter does not involve any electrical connection. It has built-in two wire transmitter that provides 24 VDC and take 4-20 mA signal.

Advantages of  Digital Variable Area Flow Meters:

  • Local indication without the auxiliary power requirement
  • Minimal loss of pressure
  • Easy to read
  • Suited for low flow (8LPH)
  • Accurate measuring, even at higher flow (150 m3/hr)
  • Assembly with no movement, reducing the maintenance
  • Default built-in transmitter of 4 to 20 mA, Loop-powered 

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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