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SYMBOLS ON UNIT
The symbols are attached to the ultra-low temperature freezer. The following table describes the
symbols.
This symbol is attached to covers that access high-voltage electrical components to
prevent electric shock. Only a qualified engineer or service personnel should be
allowed to open these covers.
This symbol indicates that caution is required. Refer to product documentation for
details.
This symbol indicates an earth.
This symbol means “ON” for a power switch.
This symbol means “OFF” for a power switch.
ENVIRONMENTAL CONDITIONS
This equipment is designed to be safe at least under the following conditions (based on the IEC 61010-1):
■
Indoor use;
■
Altitude up to 2000 m;
■
Ambient temperature 5
o
C to 40
o
C;
■
Maximum relative humidity 80% for temperature up to 31
o
C decreasing linearly to 50% relative humidity
at 40
o
C;
■
Mains supply voltage fluctuations up to
±
10% of the nominal voltage;
■
Transient overvoltages up to the levels of OVERVOLTAGE CATEGORY II;
■
Temporary OVERVOLTAGES occurring on the mains supply;
■
Applicable pollution degree of the intended environment (POLUTION DEGREE 2 in most cases);
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