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Conditions to be observed when using
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.
◇ Do not leave the instrument in a location exposed to direct sunlight or near a heating unit
where the temperature may rise.
◇ Do not change the environmental temperature of the instrument suddenly.
◇ Do not place the instrument in a place where it may be subject to strong vibrations.
◇ Do not use the instrument where there is much dust.
◇ Do not leave the instrument where the temperature is extremely low.
◇ Do not leave the instrument in a damp place.
◇ Do not place or drop heavy objects on the instrument.
◇ Use this 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).
Handling
◇ Do not drop the instrument or subject it to any strong shock.
◇ The power cable may be damaged by:
• Bending the cable.
• Pulling the cable.
• Twisting the cable.
• Placing the cable under heavy objects.
• Catching the cable between objects.
Daily maintenance
◇ If the instrument becomes dirty, wipe it with a soft cloth.
◇ Do not use benzine, paint thinner, etc. to clean the instrument.
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