△Normal conditions

a. Ambient air temperature: upper limit, + 40 ° C; lower limit, -10 ° C b. Altitude: ≤ 2000M

c. Relative ambient humidity: average daily humidity is not greater than 95%, the average monthly relative humidity is not greater than 90%.

d. Earthquake: intensity not more than 8

e. The surrounding air should not be corrosive or combustible gases, water vapor and other obvious pollution.

f. No serious filth and often violent vibration, severe conditions under severe degree of design to meet the requirements of category 1.

△ Special working conditions.

* In more than GB3906 provisions of the normal environmental conditions for use, by the user and the manufacturer to negotiate.