atc automatic temperature compensation for accurate measurements without recalibration after shifts in ambient working temperature 电池液比重:0.01sg零点校准:用20c的蒸馏水在20c的环境中校准。
and they can also be used to test the concentration of ethylene glycol or propylene glycol in antifreeze liquids . the rha-100atc has automatic temperature compensation system 该型号折射仪被用于测量以乙二醇和丙二醇两者为基的汽车冷却系统水溶液的冰点温度值和浓度百分比,它还可以检查蓄电池内电解液的比重及使用状态。