Thermo Scientific 700 Series Operating And Maintenance Manual page 40

Forma -86c ult freezer
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Thermo Fisher Scientific
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, decreas-
ing 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
Pollution Degree 2
2
Class of Equipment I
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.
1
Section 6
Specifications
Model 700 Series
6-3

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