DXS－102、102A、103A are proportional Totalizer. They are used with flow transmitter or other transmitter to aggregate a variety of flow value.

OXS－202、202A、203A are square extracts Totalize. They are used with differential pressure transmitter to aggregate a variety of flow value. Because of adopting square root extract output （0～10mA）, it can save extractor device and obtain flow into a linear 0 ~ 10mA DC output value. It is also can be used as a proportional totalizer if you do not use the square root extractor.

DXS－302 flow totalizer is used to measure and aggregate weight flow of saturated vapor which under the working pressure of 2MPa. When the actual vapor pressure changes, it will compensate it automatically. It is applicable to measure steam flow of small and medium sized industrial boiler. In addition, the instrument can also be used to measure and totalize compressed air, oxygen, nitrogen and other gases.