Phcbi MPR-722 Series, Руководство по эксплуатации

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9
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;
 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 (POLLUTION DEGREE 2 in most cases);
SYMBOLS ON UNIT
The following symbols are attached to the unit. The table describes the meaning of 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 a hot surface.
This symbol indicates an earth.
This symbol means “ON” for a power switch.
This symbol means “OFF” for a power switch.