Vacuum Gauge

In vacuum systems spanning atmosphere to 10⁻⁷ Torr, no single gauge delivers accurate, continuous measurement across the entire range. Engineers therefore rely on a dual-gauge architecture that combines a rough-vacuum Pirani sensor with a high-vacuum cold-cathode ionization gauge. At Poseidon Scientific, we designed the VG-SP205 Pirani Vacuum Transmitter and the VG-SM225 Cold Cathode Vacuum Gauge […]

In today’s automated vacuum systems, programmable logic controllers (PLCs) serve as the central nervous system for process monitoring and control. Whether in mass spectrometry, vacuum heat treatment, or scientific instrumentation, reliable vacuum data must reach the PLC instantly and accurately. While digital protocols offer flexibility, the analog 0-10 V output remains the most widely adopted

In high-vacuum systems—ranging from semiconductor PVD tools and vacuum furnaces to analytical instruments and research chambers—cold-cathode ionization gauges deliver reliable pressure measurement from 10⁻³ Torr down to 10⁻⁷ Torr. Yet even the most robust gauge can deliver inconsistent readings or shortened service life if mounting orientation is overlooked. Gravity, gas flow, sputtered material trajectories, and