Considerations To Know About เกจวัดแรงดันปั๊มลมpuma
Cold cathode gauges are exact from ten−2 Torr to 10−9 Torr. Ionization gauge calibration is extremely sensitive to design geometry, chemical composition of gases currently being measured, corrosion and surface deposits. Their calibration could be invalidated by activation at atmospheric pressure or minimal vacuum. The composition of gases at