The digital VD850 vacuum meter with Piezo/Pirani combination sensor, data logger and USB interface reads pressure over 7 decades in the rough and fine vacuum range.
Measurement principle: Piezo resistive / Heat conduction Pirani
Gas dependency: Depending on gas type (Pirani), independent of gas type (Piezo)
Measurement range mbar: Absolute Pressure: 1200 – 5.0e-5 mbar, Relative Pressure: -1060 … +340 mbar
Logging rate: 20 ms … 60 s