| 22.06.2009 - DB40 / DB41 - New Thermal Mass Flowmeters And Counters For Gasses |  | | | Model DB40 / DB41 thermal mass flow meters and counters report and measure mass flow rates and totals of non-aggressive gases, regardless of gas pressure and temperature. Process gas flows around a heated temperature sensor that is encapsulated in glass. As a result, the sensor dissipates heat which an electronics module returns to the sensor to maintain it at a constant temperature. The dissipated heat energy is proportional to the mass flow rate of the gas and is output as a 4 to 20 mA signal by the electronic utilizing calibration curves and process parameters stored in the instrument. The 4 to 20 mA signal is routed to secondary evaluation devices and provides the flow rate information. An additional pulse output with a pre-defined pulse value is used for totalizing purposes. Mass flow rate and total may also be displayed on an integrated back-lit display if required.
The DB40 models are insertion type flowmeters designed for pipes form 1" to 24". They will be supplied with a ½” threaded compression fitting and can be installed and disassembled under pressurized conditions.
The DB41 models come with integrated up- and downstream flow conditioners for pipe sizes from 1/4" up to 1 1/2".
Typical Applications:
Model DB40 / DB41 thermal mass flow meters and counters provide flow measurement of non-aggressive gases in 1/4" to 24" pipe systems. Their rugged, heavy-duty design and easy handling and operation make them the right choice for measuring and monitoring compressed air consumption levels. They also provide measurements of other suitable gases such as: nitrogen oxygen, argon, helium and carbon dioxide.
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