Gems 壓力開關產品選購方式  (How To Order gems pressure switches)

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PS41	-	10	-	4MNB	-	C	-	HC	-	XX	-	XXXX
①	-	②	-	③	-	④	-	⑤	-	⑥	-	⑦

① 產品系列 (Products  Series).

通用型可調式壓力開關 -	PS11 , PS31C , PS41 , PS61 , PS71 , PS72 , PS75 , PS76
​可調式真空壓力開關 -	PS81 , PS82
​​固態電子式壓力開關 -	​PS98 , 3600.

② 壓力範圍 (Pressure Range)

請參閱 GEMS 壓力開關產品規格書.

③ 壓力接口 (Pressure Fitting)

黃銅 (BRASS)​	​-	316不鏽鋼 (316 S.S)	​-
2MNB	= 1/8˝ NPTM	2MNS	​= 1/8˝ NPTM
4MNB	= 1/4˝ NPTM	4MNS	= 1/4˝ NPTM
2MGB	= 1/8˝ BSPM (G type)	2MGS	= 1/8˝ BSPM (G type)
4MGB​	= 1/4˝ BSPM (G type)	4MGS	= 1/4˝ BSPM (G type)
8MGB	= 1/2˝ BSPM (G type)	4MSS	= 7/16˝-20 SAE Male
M10B	= M10 x 1.0, Straight	6MSS	= 9/16˝-18 SAE Male
M12B	= M12 x 1.5, Straight	-	​-
4MSB	= 7/16˝-20 SAE Male	​-	​-
6MSB	= 9/16˝-18 SAE Male	​-	​-

④ 開關邏輯 (Circuit)
     - A = SPST / Normally Open (常開)
     - B = SPST / Normally Closed (常閉)
     - C = SPDT

⑤ 電氣輸出型式 (Electrical Termination)
     - SP = Spade Terminals (端子)
     - FLXX = Flying Leads (電子線)
     - FLSXX = Flying Leads w/PVC Shrink Tubing (電子線外加 PVC 熱縮套管)
     - ELXX = 1/2˝ NPT Male Conduit w/Flying Leads
     - CABXX = 18 AWG PVC Cable (電纜線)
     - H = DIN 43650A Male Half Only (不含標準型赫斯曼連接器)
     - HR = Right Angle DIN 43650A Male Half Only  (不含直角型赫斯曼連接器)
     - HC = DIN 43650A 9mm Cable Clamp (附帶標準型赫斯曼連接器)
     - HCR = Right Angle DIN 43650A 9mm Cable Clamp (附帶直角型赫斯曼連接器)
     - HN = DIN 43650A with 1/2˝ Female NPT Conduit
     - HNR = Right Angle DIN 43650A with 1/2˝ Female NPT Conduit

⑥ ​特殊選項 (Options)
     - V = Viton® Diaphragm (選購 Viton 材質膜片)
     - N = Neoprene Diaphragm (選購 Neoprene 材質膜片)
     - E = EPDM Diaphragm (選購 EPDM 材質膜片)
     - 10A = 10A @ 125/250 VAC Max. Rating (選購大電流接點)
     - G = Gold Contacts (for loads less than 12 mA @ 12 VDC)
     - RD = Reduced Differential (25% reduction typical) (精度提升)
     - IP = Ingress Protection (防護等級提升)
     - OF = Oil Free Cleaned (無油處理)
     - WF = Weather Pack Connector, Female (電氣連接器護套-母)
     - WM = Weather Pack Connector, Male (電氣連接器護套-公)
     - DE = Deutsch Connector, Male, DT04 Series (德馳連接器)

⑦ 設定壓力動作點 (Fixed Set Point)
     A. Specify set point -FS (in PSI or BAR, see example)
     B. Set Point Actuation
          R on Rising Pressure (壓力上升達設定點時開關動作)
          F on Falling Pressure (壓力下降至設定點時開關動作)
          Example: -FS0.5BARF for 0.5 BAR Falling or -FS5PSIR for 5 PSI Rising

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