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Edwards new APG200 series high performance compact Pirani Gauge is the perfect vacuum measurement solution across a spectrum of applications due to its compact size, LED light ring, integrated set points and flexibility of connections/outputs. Edwards production facility in the UK has been making and designing vacuum gauging for decades.
The Pirani gauge measures the vacuum pressure dependent thermal conductivity from the heated wire to the surrounding gas. The heated Pirani sensor filament is typically made of a thin (<25 µm) Tungsten, Nickel or Platium wire. As gas molecules collide with the filament wire, heat is transported from the hot wire.
A Pirani gauge is a reliable thermal conductivity gauge used in vacuum systems to measure low pressures. It works by suspending a hot metal wire in a tube and exposing it to a gas pressure medium. Thin tungsten, nickel, or platinum wires are used to make these hot metal wires. That is all for this article, where the definition, applications ...
Jan 22, 2023 · To achieve a wide range and high accuracy detection of the vacuum level, for example, in an encapsulated vacuum microcavity, a composite-type MEMS Pirani gauge has been designed and fabricated. The Pirani gauge consists of two gauges of different sizes connected in series, with one gauge having a larger heat-sensitive area and a larger air gap for extending the lower measurable limit of ...
Features and Benefits: The Televac ® 4A convection gauge (also often called a Pirani or vacuum pressure gauge) is a fast, robust, contamination resistant, and high accuracy low vacuum pressure gauge due to the Pirani filament design. Note that by comparison to the 2A thermocouple vacuum gauge, the 4A Pirani vacuum gauge must be mounted vertically.
