质量比较仪可用于标准质量的传递工作，从而并确保对原器的可追溯性。   

欧洲Radwag(瑞德威)质量比较器天平的精度可高达0.1ug，具有*的重复性。这两个特性实现了一个已知参考砝码和一个未知测试样之间的比较称量。即使它们之间存在极小的质量差异。   

比较器天平的主要用户是：国家标准质量实验室、法定计量服务机构，室内校准实验室，砝码和检测机构。他们需要至高分辨率的测量。 

The newest line of Radwag Mass Comparators enable adjusting mass standards and weights according to the OIML recommendations (R-111) from 1 mg to 200 g for F2 class and lower.

The comparators are used both for ensuring traceability of mass measurements, and verification of weights in accordance with legal metrology. RADWAG Mass Comparators have gained recognition among Accredited Calibration Laboratories, in many countries.

Mass comparators series XA/3Y/KB comprise two components. One of them holds the electronic module, and the other precise mechanical measuring system.
Comparators feature an aesthetic, large weighing chamber with glass draft shield and automatic door opening system. Comparator is equipped with user friendly menu.