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July 30, 2014
Manufactured by Philips Respironics.
The Machine Knob UI for Philip Respironics PR Machines is the small, round knob on top of the Philips Respironics PR System One CPAP and BiPAP Machines. This knob turns the machine on and off and is used in setting the machine.
PR System One 50 Series Knob
PR System One 60 Series Knob
We have found that the metal ring inside of the knob connection can sometimes be separated and left on the knob post of the machine. When installing the new knob on your machine, first check to see if the post has a small metal ring stuck to it. The design can only use one ring. The presence of an extra ring will impact installation and cause difficulties. The best solution is to either remove the ring from the replacement part or remove the ring from the knob, and then attempt installation.
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