* For patient care equipment, where a "Hospital Grade" or "Hospital Only" MAINS
PLUG exist for the particular electrical rating in question, the MAINS PLUG of non-
PERMANENTLY INSTALLED EQUIPMENT with a protective earth connection shall
comply with the requirements for a hospital grade attachment plug (mains plug)
or the non-hazardous location locking type designated "Hospital Only" as
specified in the Standard for Attachment Plugs and Receptacles UL 498.
A2.4.4 Environmental conditions
Operation temperature: 0 °C to 35 °C
Storage temperature: -20 °C to 70 °C
Humidity: 5 to 90 % non-condensing
Atmospheric pressure: 700 to 1100 hPa
Note: The device may not meet its performance specifications if stored or used
outside the ranges specified above.