granville phillips 275 convectron gauge, part number 275071 for 1/8" male npt
model: 275071
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 - 1/8 inch npt 1/2 inch tubulation
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.
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