The measuring instrument is suitable for determining the flow velocities of air flows in conjunction with a pressure probe (e.g. Prandtl probes) or a restriction flow meter. The following quantities can be measured:
- Differential pressure = Pitot or differential pressure of the probe
- Differential pressure of the static pressure of the probe versus ambient pressure
- Ambient pressure (barometric air pressure)
- Temperature
- Relative humidity
These variables and the flow velocity calculated from them are output via the interface.
For the determination of the dynamic pressure, which is necessary for the determination of the flow velocity, a suitable pressure probe is additionally required, e.g. Prandtl probe, Pitot probe or nozzle pressure. In order to be able to cover a large velocity range, two pressure sensors with different ranges are installed, which are internally connected in parallel.
The second variable necessary for determining the flow velocity is the density. This is determined via the measured variables air pressure, temperature and humidity. In order to also be able to measure in flows with negative or positive pressure to the environment, another differential pressure sensor is installed, which determines the difference between the environment and the static pressure connection of the probe.
Features:
- Precise measurement of the flow velocity from 1-200m/s
- 2 integrated differential pressure sensors with cascaded pressure range
- Internal barometric pressure sensor
- Connection for a PT100 temperature sensor
- Integrated hygrometer
- Internal calculation of density (from air pressure, temperature and humidity)
- Sampling rates up to 100Hz
- Power supply via USB or CAN bus interface, wide voltage range (7-24V)
- The measured data can be read out via USB. In the CAN version, data is transferred via the CAN bus (CAN 2.0A or CAN2.0B)
- A DBC file with the calibration data is supplied
- Simple configuration of the CAN parameters and reading out the measured values for diagnostic purposes via the USB interface
