Thermal Mass Flow Meter

Thermal mass flow meters are perfectly suited for measuring clean, dry compressed air and inert gases, where accuracy on smaller pipe sizing is important. Mitra Air offers two types of thermal mass flow meters – insertion flow meter and inline (or in-line) flow meter.

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.
• Suitable for pipes from DN20 to DN600
• Insertion flow meters are best used for permanent and temporary installations.

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.
• For information on Inline Flow Meters, refer to Inline Flow Meter page.

Both of thermal mass 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.

Features of Thermal Mass Flow Meter

• Insertion type sensor
• Thermal mass technology
• High speed flow range: 0.1 to 250 Nm/s
• Integrated temperature sensor
• Easy to insert and remove through 1/2″ valve, even when under pressure
• Modbus RTU and 4 to 20 mA + Pulse outputs
• Low pressure drop
• 2.8″ ultra-wide viewing angle LCD touch screen
• Data logging with up to 10,000,000 recording points
• Suitable for pipes from DN20 – DN600 provided minimum velocity is maintained
• Accuracy of +/-1.5% reading, +/-0.3% full scale
  • Ask us about high accuracy sensors (+/-1% reading, +/-0.3% full scale)
• Measures standard flow, mass flow, consumption and temperature
• 12 month warranty
• No moving parts, low pressure drop
• Full electrical isolation to filter out disturbances
• Stable signals
• Vibration resistant

Thermal Mass Meter comes with:

• M12 connector (data cable optional)
• Calibration certificate
• User Manual
• 12 month warranty

Thermal Mass Flow Meter Options

• Two shaft length options: 250 mm (9.8″) or 400 mm (15.7″)
• Multiple gas options: Air, Argon, Carbon Dioxide, Helium, Hydrogen, Natural Gas, Nitrogen, Nitrous Oxide, Oxygen

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.

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.

Other Information

Part Numbers: FLT100001, FLT200001, FLT100011, FLT200011, FLT100101, FLT200101, FLT100111, FLT200111, FLT110001, FLT210001, FLT110011, FLT210011, FLT110101, FLT210101, FLT110111, FLT210111