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Page View 4593 |
Product Information : |
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Product Name: |
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Series H2 Dual-Action Explosion-Proof Pressure Switches |
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Product Category: |
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การวัดและทดสอบ, เครื่องมือวัดและทดสอบ
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Product Sub-Category: |
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Dwyer , PRESSURE Gages/Manometers , Transmitters/Switches , Test Equipment เครื่องทำอุณหภูมิความร้อน ความเย็น
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Brand: |
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DWYER |
Product Type : |
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สินค้า, ผลิตภัณฑ์
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Short Description : |
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Explosion-Proof, UL & CSA Listed for Class I, Groups B, C & D and Class II, Groups E,
F & G. The SERIES H2 is designed for sequencing two different actions as pressure of
a liquid or gas increases or decreases. |
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FEATURES/BENEFITS • Explosion-proof and weather-proof housing provides device protection for outdoor use or harsh environment operation • UL listed, CSA approved to support rigorous process applications and regulations • Independent piston action design for either gas or liquid allows switches to active together or independently based on settings • Mounting in any position and not affected by vibration provides reliable switching for equipment APPLICATIONS • Mechanical HVAC or process equipment • Chemical, petroleum, food and drug processing industries • Process and Industrial applications
SPECIFICATIONS
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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: Approximately 10% of range. Agency Approvals: CSA, UL. |
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