VSP841 / VSP842 – Passive Vacuum Sensor

Absolute Pressure 1000…100 mbar to 1 x 10-3 mbar, 750…75 Torr to 1 x 10-3 Torr The VSP841 and VSP842 Pirani half bridges measure absolute pressure in the fine vacuum range. The robust heat conduction sensor is compact, pre-adjusted and temperature compensated. It is suitable for controlled and passive bridge circuits and as sensor for monitoring of vacuum isolations, readout of measurements with VD84. Benefits
  • Economical Pirani sensor
  • Good long time stability
  • Durable sensor, elastic helix filament
  • Filament protected from condensing solvents by a metal screen
  • Sensor pre-adjusted
  • Extremely small sensor volume
  • Screwable, electric connector
  • Proposal for evaluation circuit available on request
Typical Applications
  • Monitoring of vacuum insulations
  • Appliances with integrated electronics for regulation and evaluation
  • Apparatus engineering
  • Chemical process engineering
  • Analysis instruments
  • Freeze drying
  • Concentrators