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Environmental
conditions
Use the instrument at an altitude below 2,000m (above sea
level).
Use the instrument indoors.
Use the instrument where the temperature is between 5 to 40˚C.
Use the instrument under the condition where humidity is 80% at
31˚C or lower, falling linearly to 50% at 40˚C.
Main supply voltage fluctuation should not to exceed ±10% the
nominal voltage.
Installation categories (Overvoltage Categories) :
ll
The pollution degree is 2 (according to IEC60664).