Pirani vacuum sensor VSP841, VSP842

passive

The VSP841 Pirani half bridges measures 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 (compact vacuum meter and data logger). Your advantages: - Cost-efficient Pirani sensor with durable, elastic helix filament - Filament protected from condensing solvents by a metal screen - Compact dimensions - Very small sensor volume - Integrated temperature sensor - Optionally with cap to protect the sensor against dust and humidity - Metal-sealed stainless steel sensor - Sensor pre-adjusted - Vacuum connection by stainless steel small flange DN 16 ISO-KF (VSP841) or 1/8″ NPT male thread (VSP842) - External sensor for compact vacuum meter VD84 - Proposal for evaluation circuit available on request