Measuring Gas Cylinder Temperature During Filling with PyroCouple and PyroBus infrared temperature sensors

Infrared temperature sensors from Calex Electronics have been used with success for over 7 years by a leading provider of packaged gas for measuring the temperature of gas cylinders as they are filled.

When a gas cylinder is filled and the pressure increases, the cylinder will warm up. The temperature of the surface is monitored for several reasons:

  • The target pressure is compensated so the amount of gas filled is corrected at a standard temperature, typically 15ºC.
  • The temperature is monitored as the cylinder valves are opened. If the valve is opened correctly a drop in pressure and therefore temperature is observed before rising again as the cylinder is filled. If the temperature drop is not detected then filling is stopped as there could be a problem in opening the valve.
  • If multiple cylinders are filled simultaneously, the highest and lowest filling temperatures of the batch are monitored and if the difference between these two temperatures is too great, filling can be stopped.

To learn more, simply click the link to the right to download this resource.