Vacuum Gauge

Voltage Requirements for Reliable Vacuum Gauge Operation Proper power supply design is often the overlooked foundation of accurate vacuum measurement. In thin-film deposition, semiconductor processing, and analytical instrumentation, even minor deviations in supply voltage can introduce measurement drift that compromises process repeatability. Poseidon Scientific’s VG-SP205 Pirani Vacuum Transmitter and VG-SM225 Cold Cathode Vacuum Gauge have […]

Introduction Error signals in vacuum gauge outputs are critical diagnostic tools that protect processes, prevent equipment damage, and reduce downtime. Whether you operate a semiconductor cluster tool, PVD coater, vacuum furnace, or analytical instrument, understanding these signals allows rapid identification of sensor faults, over-range conditions, or plasma ignition issues before they affect product quality or

Introduction Cold cathode gauges are the workhorse of high-vacuum measurement in modern industrial and laboratory systems. Unlike hot-cathode ionization gauges that rely on a heated filament, cold cathode designs generate ions through a self-sustaining plasma discharge. This makes them ideal for the ultra-low pressure regime from 10−3 Torr down to 10−7 Torr, where precise, stable