Thick-film Gas Flow Sensor - XEN-GFL9722

  • Thick-film Gas Flow Sensor
  • Thick-film Gas Flow Sensor
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• Solid State reliability
• Low cost, small size
• Long-term stability (parts of a percent)
• Interchangeability (0.5%)
• Protective polymer coating
• Custom designs on request
• Operating temperature: -40 to + 70 °C

  • Model Number: XEN-GFL9722
  • Data Sheet: Date Sheet File
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Product Specification

XEN-GFL9722 Gas Flow Sensor Description
The Gas Flow Sensor XEN-GFL9722 is a ceramic based thermal sensor. It consists of two thick-film heating resistors and a thick-film temperature sensor. Both temperature sensor and heating resistors are laser trimmed which provides a true sensor-to-sensor interchangeability. The sensitive parts of the sensor are coated with a black polymer, which protects them from harsh environments like aggressive solvents, corrosive gasses and aggressive vapors.

When the XEN-GFL9722 is heated by the heating resistors, a gas flow passing the sensor will cool it. Because of this the output resistance will change. External temperature effects can be compensated using a second, not-heated, sensor connected in a Wheatstone bridge configuration.

XEN-GFL9722 Gas Flow Sensor Features
• Solid State reliability
• Low cost, small size
• Long-term stability (parts of a percent)
• Interchangeability (0.5%)
• Protective polymer coating
• Custom designs on request
 
XEN-GFL9722 Gas Flow SensoApplications
• Flow detection
• Gas-flow measurements
• Flow control
• Absolute temperature measurement
• Fluid detection


XEN-GFL9722 Gas Flow Sensor Specifications
(in air, ambient temperature 20°C, 1 Atm.)

Parameter typ units notes
Dimensions 7.5 x 7.5 mm
Operating temperature -40 to + 70 °C

Storage temperature -50 to + 170 °C
Heating resistor 50 ± 1 Ω
Typical heating voltage 7 V
Max. heating voltage 9 V
Temperature sensor 2000 ± 10 Ω

Stability < 0.5 %
Sensitivity 5.5 ± 0.5 °C
TCR 2750 ppm/ °C
Time constant 3 sec. depending on flow and mounting


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