Granville Phillips 275 Convectron Gauge, Part Number 275316 for NW40KF Model: 275316

• Sensor material - Gold plated tungsten
• Other materials exposed to gas - 304 stainless steel, borosilicate glass, kovar, alumina, NiFe alloy, polyimide
• Internal volume - 40cm3
• Operating temperature - 0°C to 50°C ambient , non-condensing
• Bakeout temperature - 150°C Maximum, non-operating, cable disconnected
• Connection - NW40KF
• Range - From atmosphere to 10-4Torr (10-2Pascal)

The 275 Granville Phillips convectron pressure measurement gauge tube sensor is the industry standard convection-enhanced Pirani gauge. The Granville Phillips 275 measures vacuum pressure from atmosphere to 1x10-4 Torr and are ideal for roughing and foreline pressure measurement. It provides reliable fast response measurement, in milliseconds rather than seconds as in the case with thermocouple-type gauges. The high accuracy of the Granville Phillips 275 Convectron vacuum gauge sensor and repeatablilty help insure that processes start at the desired pressure time-after-time. However, they are sensitive to the chemical composition of the gases being measured and are termed a relative pressure measurement method, that is, they determine the pressure indirectly from the thermal conductivity property of the gas medium.