Applications
Outdoor thermal mass flow meters are perfectly suited for measuring clean, dry compressed air and inert gases, where accuracy on smaller pipe sizing is important.
Typical applications include:
- Clean, dry compressed air and inert gases
- Process gases
- Clean rooms
- Manufacturing, industrial and pharmaceutical industries
- Outdoor / harsh environments
- Explosive environments (ATEx rated)
- Vacuums
- Small pipes < DN80
- Low flow
- Permanent installation
Important
- The sensor must be installed (i) in dry gas, (ii) at 90° to the pipe and (iii) away from bends, edges, seams, changes in pipe size and other obstructions,
- Incorrect wiring or installation can give false readings, damage the sensor and void the warranty. If you aren’t sure how to install or wire the sensor, please contact us. Full installation and wiring instructions are available in the User Manual.
ATEx Inline Flow Meter Pack
- Flow meter with flange connection
- M12 connector
- Traceable calibration certificate
- User Manual
- 12 month warranty
ATEx Inline Flow Meter Options
- Pressure: 1.6 MPa (16 bar) or 4.0 MPa (40 bar)
- Pipe Section: DN15, DN20, DN25, DN32, DN40, DN50, DN65 or DN80
- Gas Types: Air, Argon, Carbon Dioxide, Helium, Hydrogen, Natural Gas, Nitrogen, Nitrous Oxide, Oxygen
- Display Languages: English, French, German, Italian, Portuguese, South Korean, Spanish, Turkish
- Units of Measure:
- Flow: m3/h, m3/min, m3/s, l/min, l/s, cfm, kg/h, kg/min, kg/s
- Velocity: m/s, ft/s
- Consumption: m3, ft3, kg
- Temperature: °C, °F
Warranty & Calibration
12 month warranty
Calibration is recommended every 2 years (provided the sensor is not exposed to relative humidity above 85%).
Annual calibration is required if the sensor is exposed to relative humidity above 85%.
Accessories
Accessories such as mechanical and electrical fittings are available on the Accessories page.
Other Information
Please refer to our Terms and Conditions of Sale.
Features
- Style: Inline type sensor
- Technology: Thermal mass
- ATEx Rating:
- Ex II 2G Ex db IIC T6 Gb
- Ex II 2D Ex tb IIIC T80°C Db
- IP Rating: IP67
- Pipe Sizes: DN15 – DN80 provided minimum velocity is maintained
- Minimum Flow Velocity: 0.1 Nm/s
- Flow Range: 0.1 to 250 Nm/s
- Gas Pressure: up to 40 bar (580 psi)
- Gas Temperature: -40 to +150°C (-40 to +302°F)
- Accuracy: +/-1.5% reading, +/-0.3% full scale
- Power Requirement: 18 to 30VDC / 5W@24VDC
- Outputs: Modbus RTU and 4 to 20 mA + Pulse outputs
- Display: 2″ ultra-wide viewing angle LCD touch screen
- Display Languages:
- English
- French
- German
- Italian
- Portuguese
- South Korean
- Spanish
- Turkish
- Data Logging: No
- Bi-directional: No
- Measure: Standard flow, mass flow, velocity, consumption and temperature
- Measurement Units:
- Flow: m3/h, m3/min, m3/s, l/min, l/s, cfm, kg/h, kg/min, kg/s
- Velocity: m/s, ft/s
- Consumption: m3, ft3, kg
- Temperature: °C, °F
- Other Features:
- Integrated temperature sensor
- Low pressure drop
- No moving parts, low pressure drop
- Full electrical isolation to filter out disturbances
- Stable signals
- Vibration resistant
- Ultra-wide Turndown Ratio, 1:2500
- Warranty: 12 months
Inline v Insertion Flow Meters
Compressed Air Alliance offers two types of thermal mass flow meters – insertion flow meter and inline (or in-line) flow meter. Both flow meters (inline and insertion style) have a streamlined sensor tip which ensures minimal impact on gas flow while maintaining accuracy over a wide flow range.
Inline Flow Meters
- Inline flow sensors include a section of pipe as part of the flow meter. You will need to turn off compressed air and cut a section of pipe out to install the inline flow meter.
- Inline flow meters are best used for permanent installations.
- Suitable for pipes from DN15 to DN80
Insertion flow meters
- Insertion flow sensors are inserted into the pipe through a valve. They can be inserted under pressure so you don’t need to turn off your compressed air system during installation.
- Insertion flow meters are best used for permanent and temporary installations.
- Suitable for pipes from DN20 to DN300
- For information on Insertion Flow Meters, refer to Inline Flow Meter page.
