H2系列 防爆壓力開關(guān)為 U.L， CSA Class I, Groups B, C & D和Class II, Groups E, F & G防爆認證。用于氣體或者液體。當壓力增高或降低時有兩種不同的開關(guān)動作。在這個經(jīng)過認證的設(shè)計中，一個隔膜來驅(qū)動兩邊的連動的開關(guān)，每個開關(guān)都是獨立動作的，它們可以分別調(diào)整來共同工作?；蚋叩涂刂疲騼蓚€中間設(shè)定點值。開關(guān)頂部可現(xiàn)場打開，方便調(diào)整配置而無需拆卸接線或過程連接。Duotect@開關(guān)的防護等級有防爆和全天候。它可以任意方向安裝且不受振動的影響。
Wetted Materials: 316 SS chamber with FEP diaphragm and Buna-N O-ring standard. Fluoroelastomer or EPDM O-ring optional.
Temperature Limit: 275°F (135°C). CSA approved: -20 to 90°C (-4 to 184°F).
Pressure Limit: 1500 psig (103 bar).
Enclosure Rating: UL listed explosion-proof, Class I, Groups B, C, and D. Class II Groups E, F, and G. Meets NEMA 4X (IP66). CSA optional. Class I, Groups B, C & D. Class II, Groups E, F, & G -20°C ≤ Tamb ≤ 75°C T6 [optional -20°C ≤ Tamb ≤ 40°C T5] Type 4.
Switch Type: Two SPDT snap switches.
Electrical Rating: 5 A @ 125/250 VAC, 5 A res., 3 A ind. @ 30 VDC. Gold contacts or 10 A switch optional.
Electrical Connections: 18 AWG, 18" (460 mm) long.
Conduit Connection: 3/4" female NPT.
Process Connection: 1/4" female NPT.
Mounting Orientation: Any position.
Set Point Adjustment: Internal nut.
Weight: 2 lb (.9 kg).
Deadband: Approximay 10% of range.
Agency Approvals: CE, CSA, UL.
