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ระบบควบคุมการปรับตัว สำหรับการใช้งานความดัน (STP)
ระบบควบคุมการปรับตัวสำหรับการใช้งานความดัน (STP) Adaptive control system for pressure applications (STP)
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Product Information :

Product Name:  
Series H2 Dual-Action Explosion-Proof Pressure Switches

Product Category:   การวัดและทดสอบ, เครื่องมือวัดและทดสอบ
Product Sub-Category:   Dwyer , PRESSURE Gages/Manometers , Transmitters/Switches , Test Equipment เครื่องทำอุณหภูมิความร้อน ความเย็น
Brand:   DWYER 
Product Type :   สินค้า, ผลิตภัณฑ์ 
Short Description :   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.
     
 

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
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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