Product Details

natural gas flow meter / digital air flow meter

Product Description

Brief introduction:

VF10 series thermal mass flow meter is an instrument that uses heat conduction theory to measure fluid flow. This instrument adopts method of differential constant temperature to accurately measure gas mass flow. It has the advantages of small volume, high degree of digitization, easy installation and accurate measurement, etc.

Sensor of VF10 is made up of two benchmark level platinum resistance temperature sensors. Using bridge type loop, one sensor measures fluid temperature, another maintains differential constant temperature that higher than fluid temperature, and they can measure flow under high temperature and pressure.

Features:

1. Directly measure gas mass flow, and gas temperature also can be output of the measuring system.

2. Be adopted modular design method and operating principle to make the instrument higher measurement efficiency.

3. Quick installation and manipulation menu allows the user easy to set parameters, and the instrument can flexibly display.

4. It can cumulatively calculate flow and store the information in the EEPROM memory, and information will not be lost when power outage.

5. Pressure drop or pressure loss can be negligible.

6. Ratio of wide range can be 100:1.

7. It can be installed on the circular or rectangular pipe.

8. Each instrument is individually calibrated, and it can be determined calibration scheme according to the requirement of user.

9. Ball valve accessories can be chose to remove or replace instrument easily in low pressure and non-toxic gas environment.

Technical parameter:

Flow range	0.2-120 Nm/s (air under the standard conditions)
Accuracy	Flow values:± 1% F · S, and plus 0.2% of reading Temperature values: ±0.1°C
Repeatability	Flow values:± 0.5% Temperature values: ±0.03°C
Range ratio	100:1 to 1000:1, the factory setting.
Temperature compensation	standard temperature compensation
Working temperature	-40 — +932 ° F (-40 — +500 °C)
Humidity	99%, non-condensing
Response time	0.75s
Temperature Effect	± 0.05% / °C
Operating pressure	10Mpa at 20 °C 9.5Mpa at 200 °C
Medium	All gases that can be compatible with material of flow components.
Environmental temperature	-40 — +160 ° F (-40 — +70 °C)
Storage temperature	-40 ° — +160 ° F (-40 — +70 °C)
Housing material	NAME4X (IP65) aluminum casting of powder coating
Process of connection	NPT or flange
Electrical interface	M20×1.5
Power supply	200-240VAC, 22-30VDC
Signal output	Current: 4-20mA, 700Ω maximum load Voltage:0-10VDC, 200ohm, 1-5VDC, 100 maximum load
Communications	485, HART, Profibus, CAN optional

Applications:

1. Measuring Compressed Air

2. Measuring Boiler Combustion/Natural Gas

3. Measuring Biogas/Fermentation Gas

4. Measuring Gas in Square Pipe or Other Straight Pipe

5. Measuring Torch Gas Pipeline

6. Measuring Aeration Rate in Sewage Treatment

Dimension:

Our Services

All of our products have one year quality guarantee.

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FAQ

1. What is the measured medium? Is the medium dry?

2. What is the pipe size?

3. What is the flow range?

4. What is the temperature and pressure?