5-40℃，相对湿度不大于80%，且震动和压力源的波动应对仪表的*度读数无影响 Relative humidity is no more than 80% and the undulate of the shock and pressure resource has no influence to accurate readings of the gauge
使用温度如偏离20 3℃（A型）或20 2℃（B型）时，则须考虑温度附加误差（0.4%/10℃） Must consider the additional error if the environment temperature deviate from 20 3℃(A model) and 20 2℃(B model)
