Thermo Scientific Revco 8920 Operating Manual page 43

Section 6
Specifications
6-4 Revco ExF
Certifications
Declaration of Conformity is available from the factory
Safety Specifications
Indoor Use Only
Altitude - up to 2,000 meters
Temperature - 5°C to 43°C
Humidity - Maximum RH 80% for temperatures up to 31°C, decreasing linearly to 50% RH at 40°C
Mains Supply Fluctuations - Mains supply voltage fluctuations not to exceed ±10% of the nominal voltage
Installation Category II 1
2
Pollution Degree 2
Class of Equipment I
Intended Use
This product is intended for use as a General Purpose Laboratory Freezer for storing samples or inventory
between -40 and -86C.
This unit is not intended for use in an explosive environment, nor to be used for the storage of flammable
inventory. This unit is not intended for use in a Class II medical application as defined by Title 21 of the
Federal Code of Regulations.
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1 Installation category (overvoltage category) defines the level of transient overvoltage which the instrument is designed to
withstand safely. It depends on the nature of the electricity supply and its overvoltage protection means. For example, in CAT II
which is the category used for instruments in installations supplied from a supply comparable to public mains such as hospital
and research laboratories and most industrial laboratories, the expected transient overvoltage is 2500V for a 230V supply and
1500V for a 120V supply.
2
Pollution degree describes the amount of conductive pollution present in the operating environment. Pollution degree 2
assumes that normally only non-conductive pollution such as dust occurs with the exception of occasional conductivity caused
by condensation.
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