Specifications, General specifications, Patents – Welch Allyn Ear Wash System 29350 - User Manual User Manual
Page 27: Ear tips, General specifications patents ear tips

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Specifications
General Specifications
The specifications common to all of the major components of Welch
Allyn Ear Wash System are listed the following table.
Operating Temperature:
50° - +104° F
(10° - +40° C)
Storage Temperature:
-40° - +120° F
(-40° - +49° C)
Flow Rate from Ear Tip:
100-134 mL (0.0264 gal) of water per 20
seconds at operating pressure.
Source (faucet) Water
Pressure Range:
40 - 100 Psi (275kPa - 690 kPa)
Minimum Source Water
Flow Rate:
7.5 l/min (2 gal/min)
Maximum Source Water
Flow Rate:
21.5 l/min (5.7 gal/min)
Water Pressure from Ear Tip: Typical range 10-13 Psi (69kPa - 90kPa)
Patents
U.S. Patent Number
5,685,851; 6,458,094; D453,376;
D453,829; other patents pending
Ear Tips
•
Bio-compatible, latex-free, insert type
•
One size fits patients from pediatric to adult
•
Single-use only
•
Fits most round ear canals