Piezo / Pirani, 1200-5e-4 mbar, USB-interface


The versatile VD85 vacuum meter with Piezo/Pirani combination sensor with data logger and USB interface reads pressure over 7 decades in the rough and fine vacuum range

Overview VD85 compact vacuum meter Piezo/Pirani:

  • Wide measuring range: Wide measuring range due to combined piezo/Pirani sensor, ideal e. g. for the maintenance of vacuum pumps and systems
  • Long therm stable: Excellent long term stability
  • Long-lasting: Pirani sensor with durable, elastic helix filament
  • Temperature compensated: Stable measuring values due to optimized temperature compensation
  • Well protected: Integrated data logger for up to 2000 measurement values

Overview VD8 vacuum meters:

  • Variable: VD8 compact vacuum meters can be used as a portable instrument or for permanent installation in vacuum facilities. The gauges can be operated by a battery or a plugin power supply
  • Data logger: Integrated data logger for up to 2000 measurement values
  • Flexible connection: VD8 vacuum meters can be placed directly into a vacuum chamber, connected to an appliance with their flange or with a suitable adaptor
  • Min/Max memory function: Storage of minimum and maximum pressures achieved during measurement
  • Long battery livetime: Due to cycled measurements, the compact vacuum meter reaches a high battery lifetime; the user can choose between automatic switch off (time adjustable) for battery saving or continuous operation
  • Pressure units: mbar, Torr, hPa
  • Data export: USB interface for easy push button data transfer to PCs, but no PC connection is necessary during measurements
  • VacuGraphTM Windows Software: To visualize, analyze and save measurements on a PC (lite version free of charge)
Measurement principles Combination sensors, Piezo, Pirani
Gas dependency depending on gas type, independent of gas type (Piezo)
Measuring range mbar 1200 - 5e-4 mbar
Measurement range Torr 900 – 5e-4 Torr
Max, Overpressure resistance 2 bar abs.
Accuracy 1200 – 40 mbar: 0.3 % f.s. | 40 – 2e-3 mbar: 10 % f.r.
Resolution 1200 – 1000 mbar: 1 mbar, 1000 – 1 mbar: 0.1 mbar
Measurement rate 1.0 s
Logging rate 1 … 6000 s
Materials in contact with vacuum Stainless steel 1.4305, Tungsten, Nickel, glass, gold, FKM
Operating temperature +5…+50 °C
Storage temperature -20…+60 °C
Voltage supply 9 V battery or 12…15 VDC external
Operating time Li-battery
Serial interface Mini-USB, Type B, 5pin, female, Virtual Com Port protocol
Electrical connection Mini-jack 2.5 mm for plug-in power supply
Article Number (choice of vacuum connection) Stainl. steel small flange DN 16 ISO-KF
Display LCD 12 mm
Dimensions 25 × 16 × 9 cm
Protection class IP40
Weight (kg) 0,230
Power consumption Approx. 110 mW (clocked)
Category Data logger, Vacuum meter