The gas flow and pressure indicator (FPI) is designed to monitor the pressure and flow rate of non-aggressive gases in the pipelines of chromatographic and other analytical equipment.
The measurement of gas flow is based on the conversion of the gas mass flow rate into an electrical signal by the calorimetric method. The measured gas flow and pressure are displayed on a digital indicator. The device has an external RS 485 interface, operating under the MODBUS RTU protocol.
Technical specifications:
- gas flow measurement range – from 1 to 750 ml/min;
- pressure measurement range from 0 to 0.4 MPa;
- gas flow measurement error – less than ± 2% in the measurement range of 100 art.ml/min; less than 3% in the measurement range of 100 ... 750 art. ml/min;
- measurement error suppression – less than ± 0.25 %;
- measured gases: Air, Nitrogen, Hydrogen, Helium, Argon, Methane;
- function of monitoring the pumped gas volume for a given period of time;
- function of monitoring changes in gas pressure for a given period of time;
- the device is powered from an external power supply +15V (220V 50Hz network adapter is included in the package).
