Principle, the structure based on the thermal principle, in a closed probe comprises two resistors, one of which is heated resistor proof pressure switch as the probe price, and the other as a reference resistor is not heated, when the medium flows Liaoning domestic pressure switch, the heating resistor traffic on being taken away, the resistance value is changed, the difference between the two resistors are used as the basis to determine the flow rate. FA012 contains a probe PT100, PT100 resistance with temperature changes. There are two-wire PT100 PS110 pressure switch, three-wire, four-wire in several sizes to choose from. Principle, structure FI073 contains a PT100 probe, PT100 resistance changes with temperature changes, PT100 has two-wire, three-wire, four-wire in several sizes to choose from. Features simple installation, a variety of range to choose from, a variety of specifications optional probe, all stainless steel enclosure, compact rugged. And an optional cabinet-mounted control tables. Gas-liquid dual-use applications, can be used in water supply systems, hydraulic, pneumatic systems, cooling systems, heating systems, air conditioning systems, automation engineering. Technical parameters * Measuring range: - 50 ... 0 ℃ pressure switches, - 50. .. 50 ℃, 0 ... 50 ℃, 0 ... 80 ℃. 0.. .100 ℃, 0 ... 120 ℃, 0 ... 150 ℃, 0 ... 200 ℃. · Accuracy class: A class · tolerance: ± 0.15 + 0 002xt · Pressure:? 6 probe 40bar 8 probe 100bar · Housing material:? Stainless steel · Touch liquid part of the material: stainless steel 1.4571 · Electrical connection: Terminal Wiring ? Connection: Terminal Wiring ? Protection: IP65 Hebei price pressure switch pressure switch _ _ Beijing Tour Beijing Tour grace provided by TU Technology Limited. Beijing Tour En Ltd. (www.bjyouen.com) (www.bjyouen.com) strong, credible, in Beijing's Haidian District, chemical instrumentation industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the tour into the glorious grace and you work for a better future!