Technical Specifications
Safety specifications
Thermo Fisher Scientific
Thermo Scientific Wellwash Versa User Manual
131
This section describes the safety specifications for the Wellwash Versa
instrument.
Wellwash Versa bears the following markings:
Type 888
100–240 Vac, 50/60 Hz, 100 VA max., Class I
CE marking
cTÜVus
The safety specifications are also met under the following environmental
conditions in addition to or in excess of those stated in the operating conditions:
Altitude
Up to 2000 m
Tempe5
°
C to +40
°
C
Humidity
Maximum relative humidity 80% for temperatures up to
31
°
C decreasing linearly to 50% relative humidity at 40
°
C
Mains supply fluctuations
±
10% from nominal
Installation category
(overvoltage category)
II according to IEC 60664-1 (see
Note
1)
Pollution degree
2 according to IEC 60664-1 (see
Note
2)
Note
1) The
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
2500 V for a 230 V supply and 1500 V for a 120 V supply.
2) The
pollution degree
describes the amount of conductive pollution
present in the operating environment. Pollution degree 2 assumes that
normally only nonconductive pollution, such as dust, occurs with the
exception of occasional conductivity caused by condensation.
▲
Safety
specifications
In conformity with
the requirements
