VACUUM SWITCH壓力開關產品的激勵電源分為正比激勵和固定激勵。前者是將壓力傳感器電橋直接接到電源上，當電源改變時，壓力傳感器的靈敏度和零點都隨之發生變化。后者內部有一個參考電壓，壓力傳感器電橋由參考電壓供電激勵。參考電壓是恒定的，與電源無關。只要電源電壓在一指定電壓范圍內變化，參考電壓不變。因而傳感器的輸出不變，不受電源電壓的影響。

VACUUM SWITCH壓力開關產品型號如下：

UEDA SEISAKUSHO壓力開關PL-650-1-R3B,

UEDA SEISAKUSHO壓力開關PL-650-2-R3B,

PRESSURE SWITCH壓力開關PL-650-3-R3B,

UEDA SEISAKUSHO壓力開關PL-650-4-R3B,

PRESSURE SWITCH壓力開關PL-650-5-R3B,

UEDA SEISAKUSHO壓力開關PL-650-6-R3B,

PRESSURE SWITCH壓力開關PL-650-7-R3B,

UEDA SEISAKUSHO壓力開關PL-651-10-R3B,

UEDA SEISAKUSHO壓力開關PL-651-11-R3B,

PRESSURE SWITCH壓力開關PL-651-12-R3B,

UEDA SEISAKUSHO壓力開關PH-650-8-R3SB,

PRESSURE SWITCH壓力開關PH-650-9-R3SB,

PRESSURE SWITCH壓力繼電器PM-501-R3B,

UEDA SEISAKUSHO壓力開關PM-502-R3B,

PRESSURE SWITCH壓力開關PM-503-R3B,

UEDA SEISAKUSHO壓力開關PM-504-R3B,

PRESSURE SWITCH壓力開關PM-505-R3B,

UEDA SEISAKUSHO壓力開關PM-506-R3SB,

PRESSURE SWITCH壓力開關PM-507-R3SB,

PRESSURE SWITCH壓力繼電器PM-501DC-G3B,

PRESSURE SWITCH壓力開關PM-502DC-G3B,

PRESSURE SWITCH壓力開關PM-503DC-G3B,

UEDA SEISAKUSHO壓力開關PM-504DC-G3B,

PRESSURE SWITCH壓力開關PM-505DC-G3B,

UEDA SEISAKUSHO壓力開關PM-506DC-G3SB,

UEDA SEISAKUSHO壓力開關PM-507DC-G3SB,

UEDA SEISAKUSHO壓力開關PM-501DC10-F3B,

PRESSURE SWITCH壓力開關PM-502DC10-F3B,

UEDA SEISAKUSHO壓力開關PM-503DC10-F3B,

PRESSURE SWITCH壓力開關PM-504DC10-F3B,

PRESSURE SWITCH壓力繼電器PM-505DC10-F3B,

PRESSURE SWITCH壓力開關PM-506DC10-F3SB,

PM-507DC10-F3SB壓力開關UEDA SEISAKUSHO,

PRESSURE SWITCH壓力開關PM-501DC10-R3B,

PM-502DC10-R3B壓力開關UEDA SEISAKUSHO,

PRESSURE SWITCH壓力開關PM-503DC10-R3B,

UEDA SEISAKUSHO壓力開關PM-504DC10-R3B,

PM-505DC10-R3B壓力開關UEDA SEISAKUSHO,

PRESSURE SWITCH壓力開關PM-506DC10-R3SB,

PRESSURE SWITCH壓力繼電器PM-507DC10-R3SB,

UEDA SEISAKUSHO壓力開關PM-601-R3B,

PRESSURE SWITCH壓力開關PM-602-R3B,

PM-603-R3B壓力開關UEDA SEISAKUSHO,

PRESSURE SWITCH壓力開關PM-604-R3B,

UEDA SEISAKUSHO壓力開關PM-605-R3B,

PRESSURE SWITCH壓力開關PM-606-R3SB,

PM-607-R3SB壓力開關UEDA SEISAKUSHO,

PRESSURE SWITCH壓力開關PM-601DC-G3B,

UEDA SEISAKUSHO壓力開關PM-602DC-G3B,

PRESSURE SWITCH壓力開關PM-603DC-G3B,

UEDA SEISAKUSHO壓力開關PM-604DC-G3B,

PRESSURE SWITCH壓力開關PM-605DC-G3B,

PRESSURE SWITCH壓力繼電器PM-606DC-G3SB,

PRESSURE SWITCH壓力開關PM-607DC-G3SB,

PM-601DC10-F3B壓力開關UEDA SEISAKUSHO,

PRESSURE SWITCH壓力開關PM-602DC10-F3B,

UEDA SEISAKUSHO壓力開關PM-603DC10-F3B,

PRESSURE SWITCH壓力開關PM-604DC10-F3B,

PM-605DC10-F3B壓力開關UEDA SEISAKUSHO,

PRESSURE SWITCH壓力開關PM-606DC10-F3SB,

UEDA SEISAKUSHO壓力開關PM-607DC10-F3SB,

PRESSURE SWITCH壓力開關PM-601DC10-R3B,

PRESSURE SWITCH壓力繼電器PM-602DC10-R3B,

PRESSURE SWITCH壓力開關PM-603DC10-R3B,

PM-604DC10-R3B壓力開關UEDA SEISAKUSHO,

PRESSURE SWITCH壓力開關PM-605DC10-R3B,

PM-606DC10-R3SB壓力開關UEDA SEISAKUSHO,

UEDA SEISAKUSHO壓力開關PM-607DC10-R3SB,

PRESSURE SWITCH壓力繼電器P5S-1-R3B,

PRESSURE SWITCH壓力開關P5S-3-R3B,

P5S-5-R3B壓力開關UEDA SEISAKUSHO,

PRESSURE SWITCH壓力開關P5S-7-R3B,

P5S-10-R3B壓力開關UEDA SEISAKUSHO,

PRESSURE SWITCH壓力開關P5S-20-R3B,

P5S-40-R3B壓力開關UEDA SEISAKUSHO,

PRESSURE SWITCH壓力開關P5S-60-R3SB,

UEDA SEISAKUSHO壓力開關P5S-80-R3SB,

P5W-1-R3B壓力開關UEDA SEISAKUSHO,

PRESSURE SWITCH壓力開關P5W-3-R3B,

UEDA SEISAKUSHO壓力開關P5W-5-R3B,

PRESSURE SWITCH壓力開關P5W-7-R3B,

P5W-10-R3B壓力開關UEDA SEISAKUSHO,

VACUUM SWITCH壓力開關產品是當系統內壓力高于或低于額定的安全壓力時，感應器內碟片瞬時發生移動，通過連接導桿推動開關接頭接通或斷開，當壓力降至或升額定的恢復值時，碟片瞬復位，開關自動復位，或者簡單的說是當被測壓力超過額定值時，彈性元件的自由端產生位移，直接或經過比較后推動開關元件，改變開關元件的通斷狀態，達到控制被測壓力的目的。壓力開關采用的彈性元件有單圈彈簧管、膜片、膜盒及波紋管等。常見的使用范圍有電力、石油、化工、冶金、鍋爐、食品機械、環保設備等行業。