Configuration

The devices of the QMA series are available as complete units or with separate cases for electronics and gas unit. For the employment in the industry the devices are built into heated analysis cabinets. Likewise the assembly can be installed in the rack for placement in the analysis house.

Outputs and Operation
Intuitive Operator assistance, bi-directional interfaces, one analogue output, five electrically isolated alarm outputs are standard. The model 2020 contains a four line LCD-display as well as a large LED display. The operation is made by four keys. The models 2030 and 2035 offer a better comfort by the included Embedded PC with graphic display and Touch screen.

The cycle time, i.e. the repeated change-over of measuring and reference gas, can be chosen depending upon application. The longer the length of time of the measurement, the higher is the sensitivity. Longer reference cycle times increase the life time of the sensor. A short response time requires short switching cycles.

Reference gas dryer
Reference gas dryers are used to dry down the sample gas for use as reference gas. They are integrated into each analyzer. In order to achieve a high drying grade the gas way in the dryer is extended by bulkhead metal sheets.

Internal moisture generator for calibration
We are also flexible in the selection of the moisture generators depend on your needs and demands. The operating temperature of the sensor/generator unit (QCM 1010 QCM 1015) can be chosen according to the process needs.

Sensor
We have developed special high temperature and acid-proof quartz sensors for normal applications to 70°C (types NN70), for gases with dew points to 150°C (types HT150) and for sour gas applications (types HS for aggressive gases).