Agilent Technologies 0531-F0472-301 Thermocouple Vacuum Pressure Gauge Tube Sensor

Agilent's 0531-F0472-301 Thermocouple Vacuum Pressure Gauge Tube Sensor is a 531-series thermocouple gauge tube designed for vacuum measurement in compatible gauge controllers. The tube is specified as part number F0472301 by Agilent and uses a 1/8 in NPT fitting, making it a plug‑in replacement for 531 gauge configurations in many vacuum systems. Manufactured for corrosion resistance and reliable performance in vacuum environments, the component is described by Agilent's data as stainless steel in the 531 gauge-tube family, with a measurement range from about 1 x 10^-3 Torr up to atmosphere. The tube exhibits a fast response, typically under 3 seconds, and operates within a temperature range of 0 to 50 °C, with storage and bakeout considerations typical for vacuum instrumentation. As a tube-only sensor, it requires a compatible vacuum gauge controller to supply power to the thermocouple heater and to interpret the thermoelectric signal that represents the system's vacuum level. The 0531-F0472-301 designation is tied to the broader 531/536 Thermocouple Gauge Tube lineup used in legacy Varian/Agilent vacuum instrumentation, making it a direct option for upgrading or replacing worn 531 gauge tubes in compatible controllers.