E-C Series Altitude Switch
The E-C series is the most robust altitude switch in the Precision Sensors product line. The capsule based sensing element provides repeatable and precise absolute pressure threshold detection by sensing changes in the ambient air pressure compared to an evacuated capsule. An integral port fitting allows easy testing and remote sensing while an O-ring sealed cover provides an environment seal.
Typical uses include aircraft cabin air pressure monitoring.
For a low-profile, non-environmentally sealed alternative, refer to the A-C series. For qualification information, please consult the sales or engineering departments.
Features
- Intended for gaseous media
- Environmentally sealed
- Ni-Span-C capsule provides superior setpoint stability over temperature
- Custom configurations available upon request
Specifications *
| Specification |
E45C |
E37C |
|---|---|---|
| Available setting range (PSIA) | 0.2 to 20.0 | 2.0 to 30.0 (custom options up to 75 psia available) |
| Available setting range (feet above sea level) | -10,000 to 90,000 | -10,000 to 50,000 |
| Repeatability | ±0.1 psia + 0.5% of setting | ±0.1 psia + 0.5% of setting |
| Available Settings | 2.0 to 30 PSIA | 0.2 to 20 PSIA |
| Deadband | 0.15 to 0.8 psia | 0.3 to 1.0 psia |
| Proof pressure | 20 psia (30 psia optional) | 30 psia |
| Operating temperature range | -65°F to 160°F | -65°F to 160°F |
| Typical weight | 3.5 oz. standard configuration | 2.5 oz. standard configuration |
| Electrical rating | 7 Amps max. at 28 VDC | 7 Amps max. at 28 VDC |
| Switch configuration | SPST, SPDT | SPST, SPDT |
| Pressure connections |
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| Electrical connections |
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| Warranty | 18 Months | 18 Months |
* Specifications subject to change
