The E48W, E36W and E17W series absolute high purity pressure switches offer accurate, repeatable switching for monitor/control and alarm/shut down protection. Specifically designed for high purity gas systems, and to operate at pressure points referenced to absolute zero. These products should be specified when changes in atmospheric pressure would have an adverse effect on switch operation or when hermetically sealed contacts are required.
E-W Series Absolute Pressure Switch Features:
- Tamper proof (factory) setting
- Welded construction
- Secondary seal for added protection
- Reverse positive pressure protected
- RoHS Compliant
- Factory set to customer specifications
E-W Series Absolute Pressure Switch Specifications:
| E48W | E36W | E17W | |
| Available Settings | 10 to 150 Torr | 100 to 1500 Torr | 1000 to 5000 Torr |
| Deadband | 20 Torr + 5% of Setting | 40 Torr + 6% of Setting | 200 Torr + 7% of Setting |
| Repeatability | 5 Torr + 2% of Setting | 15 Torr + 2% of Setting | 75 Torr + 4% of Setting |
| *Internal Volume | 2.22 CC | 1.06 CC | 0.46 CC |
| **Proof Pressure | 0 psia 15 psig | 0 psia 25 psig | 0 psia 300psig |
| **Operating Temp. | Range 0 to 130 F | 0 to 130 F | 0 to 130 F |
| Finish | 5 Ra typical | 5 Ra typical | 5 Ra typical |
| Wetted Materials | 316L per F20 | 316L per F20 | 316L per F20 |
| Media Connections | 1/4 end seal type | 1/4 end seal type | 1/4 end seal type |
| 1.125 C Seal | 1.125 C Seal | 1.125 C Seal | |
| NW25 flange | |||
| Electrical Connections | Free Leads | Free Leads | Free Leads |
| Crimp Type Connectors | Crimp Type Connectors | Crimp Type Connectors | |
| D Sub | D Sub | ||
| Min. Operating Life | 5 Million cycles | 5 million cycles | 1 million cycles |
| Approvals | UL, CE, ISO 13849 | UL, CE, ISO 13849 | UL, CE, ISO 13849 |
| Warranty | 36 Months | 60 Months | 36 Months |
*With 1/4 male end seal type
**Higher temperature range and proof pressures available
E-W Series Absolute Pressure Switch Links
E17W Series Absolute Pressure Switch
E36W Series Absolute Pressure Switch
E48W Series Absolute Pressure Switch
Download W Series High Purity Pressure Switches for Clean Gas Applications Catalog
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For measuring pressure points referenced to absolute zero.