Phcbi MBR-305GR - UNIT LABELS AND SYMBOLS; Hazard Labels on Unit; Unit Symbols Guide; ENVIRONMENTAL CONDITIONS

9
LABELS ON UNIT
<Labels applied to the unit>
To avoid accidents, users are advised to read carefully the hazard labels found at key locations on the
interior and exterior of the unit.
Possible
Danger
Caution Type
Location of Danger
Caution Label Description of Danger
Burns Hot surface
Cooling unit and heat
cover
Avoid touching the cooling system
and heat cover, which can reach
high temperatures and may cause
burns.
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 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;
 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);