Digital Gas Flow Meter

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Technical Specifications :

• Flow Range :
  
  • DFM-01 - 1ml/min to 50ml/min with least count of 0.1ml/minDFM-02 - 5ml/min to 500ml/min with least count of 1 ml/min
  • DFM-03 - 200ml/min to 2000ml/min with least count of 1ml/min
  • DFM-04 - 1ml/min to 500ml/min with least count of 0.1ml/min (auto range)
  • DFM-05 - 1ml/min to 1000ml/min with least count of 0.1ml/min (auto range)
  • DFM-06 - 10ml/min to 400ml/min with least count of 1ml/min (auto range)

• Accuracy - 2% of Reading, 1 Digit
• Power Supply - 230 V AC, 50 Hz
• Resolution - 0.1ml/min & 1ml/min

• Dimensions :   
  
  • DFM-01- 27cm (H) x 13cm (W) x 10cm (D)DFM-02 - 27cm (H) x 13cm (W) x 10cm (D)
  • DFM-03 - 27cm (H) x 13cm (W) x 10cm (D)
  • DFM-04 - 25cm (H) x 16cm (W) x 4 cm (D)
  • DFM-05 -17cm (H) x 7cm (W) x 3.5cm (D)

   

Principle :
The Digital Gas Flow Meter is based on the classical method viz. Soap film method. The instrument is automated by using Microcontroller which provides highly accurate Measurement and direct digital read out of gas flow rate. The time required for the soap film to pass through a fixed known volume is measured. The soap film is sensed by IR sensors. When the soap film passes through first sensor , it activates the timer of Microcontroller. Timer is stopped when the film crosses the second sensor. The flow rate is then calculated by Microcontroller and instantly.