Detachable pneumotach flow heads in the RXD237 Series are machined from acetal to give good stability with low weight and have found application in pediatrics and in the respiration measurement of animals such as dogs, cats, rats and mice.
In this range of flow heads, pneuomotach condensation is approached from a fresh angle. One of the problems that has been encountered with pneumotachographs is condensation from expired air. This can be prevented by fitting a non-return valve and measuring only inspiration or alternatively by heating the flowhead, but viscosity errors may arise which, in the first few breaths especially, preheat the inspired air most uncomfortably. By mounting a fine stainless steel gauze in plastic rings, the thermal inertia is greatly reduced. The gauze therefore rapidly equilibrates in temperature with passing air and condensation is minimal.
Lightweight and robust
Linear and direction sensitive
Twin, non kink silicone tubing
Economical, sensitive and robust
Easily cleaned, disinfected or sterilized
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