7
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);