Ultrasonic Gas Flow Sensor

A compact, dual-function Ultrasonic Gas Flow Sensor that measures gas flow and gas concentration for flow rates from 1 to 25 Liters per minute. This Ultrasonic Gas Flow Sensor uses a unique time-of-flight design with an onboard processor to make highly accurate measurements of both gas flow and concentration. Suitable for use with many gases in an easy to implement format. 
 
Key features of the GB-L1CM1 Gas Flow Sensor include:

  • Very small footprint (~ business card)
  • Acts as two sensors in one: measures gas flow and concentration
  • Measures average molecular weight and calculates concentration level of known gases such as:  Air, O2, N2, H2, Natural Gas, N2O, CO2, Ar, and He (Oxygen, Nitrogen, Hydrogen, Nitrous Oxide, Carbon Dioxide, Argon, and Helium)
  • Runs off a 3V power supply, which makes it also battery operable
  • Measures flow rates from 1 to 25 Liter/min

Panasonic’s proprietary Gas Flow Sensor offers two gas sensing functionalities (flow and concentration) in one device. This Sensor experiences low pressure loss due to the absence of obstructing objects within it’s flow path.

The Panasonic Gas Flow Sensor provides high measurement accuracy, even with hydrogen gas, because of its’ highly sensitive functionality. Low voltage input allows this Sensor to be Battery operated.  

Panasonic Gas Flow Sensors feature an extremely small footprint that permits compact designs. 

Series List

Results 1
Series table for lineup Ultrasonic Gas Flow Sensor
Series/TypeDatasheetFlow Rate Range (Liter/min)Accuracy (Air at 25oC) (R.D.)Applicable GasDimensions W/H/DPower Supply Voltage (V)Current ConsumptionOutput DataCommunicationOperating temperature (°C)Operating HumidityMaximum Allowable Pressure (kPa)Pressure Loss (25 L/Min) (Pa)Flow Channel MaterialWeight (Typ.)
1.0 to 25
+/- 3%
Air, oxygen (O2), nitrogen (N2), hydrogen (H2), helium (He), carbon dioxide (CO2), nitrous oxide (N2O), argon (Ar), etc.
W78 x H32.7 x D47 (mm)
3.0 to 5.0  (Max 5.5 V)  (Dependent on gas type)
10 mA
Flow, Propogation Time, Temperature, Mean Molecular Weight (optional)
UART
10~ + 60oC  (Freezing or condensation should not occur)
0~95% RH
500 kPa
150
PPS
72 g

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