The surrounding air humidity range is -40P to +40P, with a 24-hour average value not exceeding +35P. The lower limit is -40^ unless specially declared.

For the general type, the altitude must not exceed 2000m. If used above 2000m, it must be operated with reduced capacity.

The altitude limit for the plateau type of ARW1 must not exceed 5000m.

At a maximum temperature of +40P, the relative humidity must not exceed 50%. However, higher relative humidity is allowed at lower temperatures, such as up to 90% at 20P.

The ARW1 is classified under Pollution Class: Class 3 and Protection Class: IP30.

Yes, when the operating altitude of the general type ARW1 exceeds 2000m, it must be utilized with a reduced load capacity to ensure safe operation.