The P90S Series Vacuum Switch from UE Precision Sensors is designed for applications requiring extremely sensitive detection of low vacuum or slight pressure changes. Built to sense pressure levels in fractions of an inch of water, the P90S delivers precise and reliable switching for monitoring, control, and safety functions.
With a compact, low-profile design and flexible mounting options, the P90S is ideal for systems where space is limited and accuracy at very low pressure levels is critical.
Features
P90S Series Vacuum Switch Features & Benefits
- Exceptional Sensitivity for Low Pressure Detection - The P90S utilizes a silicone-on-silk diaphragm capable of detecting very small pressure variations—ideal for applications requiring fine control.
- Compact, Low-Profile Design - Its small footprint allows for easy integration into tight spaces, making it well-suited for OEM equipment and panel installations.
- Flexible Mounting Options - The P90S can be panel-mounted to eliminate additional fittings or installed using traditional port connections, improving packaging efficiency.
- Simple Electrical Integration - Designed with straightforward wiring and connection options, reducing installation complexity and time.
- Reliable Factory-Set Performance - Factory calibration ensures consistent switching performance and eliminates the risk of unintended adjustments in critical systems.
Specifications
P90S Series Vacuum Switch Specifications & Technical Details
| Media | Gas or Liquid |
| Type | Factory Set |
| Sensor Type | Silicone or Silk Diaphragm |
| Available Settings | 0.04 0.5 PSIV |
| Actuation Value | 0.01 PSIV + 2% of Setting |
| Repeatability | 0.005 PSI + 1% of Setting |
| Proof Pressure | 2 PSIG |
| Operating Temp. Range | -65 to 160 F |
| Wetted Materials | Silicone Diaphragm, Al |
| Pressure Interface | Pipe Fittings, MS Fittings |
| Electrical Rating | Up to 7 Amps |
| Electrical Connections | Switch Terminals Terminal Blades |
| Typical Weight | 0.60 lbs |
| Qualification | Consult Factory |
| Warranty | 18 Months |
| Options | Panel Mount Custom Fittings |
Applications
P90S Series Vacuum Switch Applications & Use Cases
- Exhaust Vent & Airflow Monitoring - Commonly used to detect small pressure changes in exhaust or ventilation systems, helping ensure proper airflow and system performance.
- HVAC & Environmental Systems - Supports low-pressure monitoring in air handling and environmental control systems.
- Medical & Laboratory Equipment - Provides precise vacuum sensing in applications where accuracy and repeatability are critical.
- OEM Equipment Integration - Ideal for compact system designs requiring sensitive pressure detection without adding bulk.
The P90S is widely used in applications where small pressure variations must be accurately detected and acted upon.
Q & A
P90S Series Vacuum Switch Q & A
No. The P90S is factory-set, which ensures consistent and tamper-resistant performance in critical applications.
Downloads
Download Pressure, Flow, Level & Temperature Products Safety and Process Control Sensors Brochure
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