Digital Flow Calibrator

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The Digital Flow Calibrator combines the simplicity & versatility of a soap film bubble meter with the speed and accuracy of a microprocessor. With hands free operation, you can still see the bubble, but you also have precision of a digital display with accuracy of a quartz clock. No more tedious bubble formation, bubble watching, timing & flow-rate time calculation. The DFC-1 accurately calibrates air sampling pumps (vacuum or pressure), rotameters, orifices etc. quickly & reliably with accurate & reproducible results.

Principle Of Operation : The DFC-1 gas flow calibrator operates on the principle of traditional soap film flow meter which has been automated with the use of high technology infrared sensors, quartz timing & microprocessor intelligence to provide instant digital read out of gas flow rates. A soap bubble is used to trace the gas flow through a fixed volume high precision glass flow-cell. When the liquid soap bubble passes through the first sensor, it activates a quartz timer, which stops when the soap bubble passes through the second sensor. The microprocessor then calculates the flow rate & instantly displays it on a liquid crystal display.

Specifications :

Measuring Range : 1.0 cc/min to 5.00 Ipm with Auto Ranging facility to cover full scale range of 199.9 ml/min., 1999 ml/min., & 5.00 Ipm.

Display : 3½ digit Liquid Crystal Display with additional indication of LOW-BAT and various Self-Diagnostic System-Errors.

Function : On Reset- Key to reactivate the system after Auto-Shutoff (in 2 minutes when not in use)

Multi Single - Modes to effect the measurement continuously for multiple bubble or to limit it to the first bubble.

Average - Mode to average the last four readings.

Accuracy : ± 2010 of Reading

Flow Cell : Precision, Small-Volume Glass flow cell that is vertically adjustable to provide faster results for Low-Flow applications. It also accepts any type of soap solution. However for higher flow measurement, we recommend our standard solution.

Automatic Bubble : This innovative bubble formation mechanism provides adjustable and continuous stream Formation of bubbles for hands free operation. A large reservoir of soap solution provides long uninterrupted operation without cumbersome process of re-filling after every few minutes.

Power :


• Mains Operated Model - 230 V AC
• Battery Operated Model - 6 V Dry Cell or
• ON indication on Front Panel. Rechargeable batteries Optional at extra charge.

Dimensions : 20 (W) x 15 (D) x 23 (H) cms.

Printer : Optional Impact type, Numeric or Alpha-numeric compact, Portable Printer for permanent record.

Carrying Case : Optional corrosion resistant carrying case to accommodate, DFM-1, soap solution, printer & battery charger.

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Telelin Instruments India

Girgaon, Mumbai, Maharashtra
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GST27AACPD3235C1ZF
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Product Description

The Digital Flow Calibrator combines the simplicity & versatility of a soap film bubble meter with the speed and accuracy of a microprocessor. With hands free operation, you can still see the bubble, but you also have precision of a digital display with accuracy of a quartz clock. No more tedious bubble formation, bubble watching, timing & flow-rate time calculation. The  DFC-1 accurately calibrates air sampling pumps (vacuum or pressure), rotameters, orifices etc. quickly & reliably with accurate & reproducible results.

Principle Of Operation : The DFC-1 gas flow calibrator operates on the principle of traditional soap film flow meter which has been automated with the use of high technology infrared sensors, quartz timing & microprocessor intelligence to provide instant digital read out of gas flow rates. A soap bubble is used to trace the gas flow through a fixed volume high precision glass flow-cell. When the liquid soap bubble passes through the first sensor, it activates a quartz timer, which stops when the soap bubble passes through the second sensor. The microprocessor then calculates the flow rate & instantly displays it on a liquid crystal display.

Specifications :


Measuring Range : 1.0 cc/min to 5.00 Ipm with Auto Ranging facility to cover full scale range of 199.9 ml/min., 1999 ml/min., & 5.00 Ipm.

Display : 3½ digit Liquid Crystal Display with additional indication of LOW-BAT and various Self-Diagnostic System-Errors.

Function : On Reset- Key to reactivate the system after Auto-Shutoff (in 2 minutes when not in use)

Multi Single - Modes to effect the measurement continuously for multiple bubble or to limit it to the first bubble.

Average - Mode to average the last four readings.

Accuracy : ± 2010 of Reading

Flow Cell : Precision, Small-Volume Glass flow cell that is vertically adjustable to provide faster results for Low-Flow applications. It also accepts any type of soap solution. However for higher flow measurement, we recommend our standard solution.

Automatic Bubble : This innovative bubble formation mechanism provides adjustable and continuous stream Formation of bubbles for hands free operation. A large reservoir of soap solution provides long uninterrupted operation without cumbersome process of re-filling after every few minutes.

Power :

• Mains Operated Model - 230 V AC
• Battery Operated Model - 6 V Dry Cell or
• ON indication on Front Panel. Rechargeable batteries Optional at extra charge.

Dimensions : 20 (W) x 15 (D) x 23 (H) cms.

Printer : Optional Impact type, Numeric or Alpha-numeric compact, Portable Printer for permanent record.

Carrying Case : Optional corrosion resistant carrying case to accommodate, DFM-1, soap solution, printer & battery charger.
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About the Company

Year of Establishment1979
Legal Status of FirmIndividual - Proprietor
Nature of BusinessManufacturer
Number of EmployeesUpto 10 People
Annual TurnoverRs. 50 Lakh - 1 Crore
IndiaMART Member SinceJuly 2007
GST27AACPD3235C1ZF
Import Export Code (IEC)03010*****

We are one of the few Multi-product organization manufacturing, supplying & exporting quality process control instruments and system since 1979. Telelin was established with intension to manufacture and supply best quality performance guaranteed Process Instruments for Pressure, Vacuum, Flow, Level, Temperature etc. After starting from a small scale Telelin has blossomed into a reputed organization with manufacturing facilities at number of locations with modern & appropriate infrastructure to produce Quality products and systems. With support from our design engineers & quality control, We have built a reputation for delivering quality instruments with zero rejection and highly durable instruments manufacturing company.

Our Company has a distinguished record of success for providing leading technology and cost effective solutions to our customers. Our marketing, production, design & development department are located nearby to provide efficient & timely service to our customers.
Digital Flow Calibrator
Digital Flow Calibrator
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Seller Contact Details

Harendra Doshi

5a, 1st Floor, Ghaswala Building, 54, Islampura Street, Girgaon, Girgaon Mumbai - 400004, Maharashtra, India

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