Description
The PureAire Universal Phosphine (PH3) Gas Detector is a fixed gas monitoring system designed for continuous phosphine detection in semiconductor manufacturing, grain fumigation and storage, chemical manufacturing, and other locations where phosphine gas may be present.
This Phosphine Gas Detector is available in 0–999 ppb and 0–1 ppm detection ranges, allowing the appropriate measurement range to be selected for the application. The PureAire Universal Gas Detector provides continuous, real-time phosphine monitoring for facility and personnel safety applications.
The monitor features a local digital display, built-in audible alarm, visual alarm indicators, two adjustable alarm relays, and an active 4–20 mA output for integration with PLCs, facility monitoring systems, ventilation equipment, remote alarms, and other safety systems.
Because phosphine can present a hazard at elevated concentrations, continuous fixed monitoring with local alarms and 4–20 mA integration can provide early warning as concentrations increase.
Gas: Phosphine (PH3)
Available Detection Ranges: 0–999 ppb and 0–1 ppm
Monitor Platform: PureAire Universal Gas Detector
- Continuous phosphine (PH3) gas monitoring
- 0–999 ppb and 0–1 ppm detection ranges available
- Local digital concentration display
- Built-in audible alarm
- Visual alarm indicators
- Two user-adjustable alarm relay setpoints
- Active 4–20 mA analog output
- Designed for continuous fixed gas monitoring
- Compatible with PLC and facility monitoring systems
- Remote sensor configurations available
- Remote sensor cable lengths available up to 30 ft
- 24 VDC operation
- Wall-mount design
Available Phosphine Ranges
| Detection Range | PureAire Part Number |
| 0–999 ppb PH3 | 90264 |
| 0–1 ppm PH3 | 90078 |
Phosphine Safety Monitoring
Phosphine is a highly toxic gas used in semiconductor doping and fumigation. Continuous fixed monitoring provides early warning of increasing phosphine concentrations for personnel safety.
System Integration
The active 4–20 mA output and adjustable alarm relays allow the detector to interface with PLCs, ventilation equipment, external horns and strobes, remote displays, and other facility safety systems when properly configured.
| Manufacturer | PureAire Monitoring Systems |
| Product Family | Universal Gas Detector |
| Gas Detected | Phosphine (PH3) |
| Available Ranges | 0–999 ppb and 0–1 ppm |
| Part Numbers | 90264 (0–999 ppb); 90078 (0–1 ppm) |
| Display | Digital concentration display |
| Analog Output | Active 4–20 mA |
| Alarm Relays | Two user-adjustable alarm relays |
| Alarm Indication | Audible and visual alarm indication |
| Power Requirement | 24 VDC regulated |
| Remote Sensor Option | Available; remote cable lengths up to 30 ft |
| Approximate Unit Weight | 1.2 lb (19.2 oz) |
The PureAire Universal Phosphine Gas Detector is designed for continuous PH3 monitoring in areas where phosphine is used, stored, handled, or may be released.
Typical Applications
- Semiconductor manufacturing
- Grain fumigation and storage
- Chemical manufacturing
- Laboratories and research facilities
- Gas cabinets and distribution systems
- Industrial manufacturing
- Workplace safety monitoring
Detector placement should account for potential release points and airflow patterns in the monitored area. Final detector location, alarm settings, ventilation requirements, and system integration should be based on the specific application and applicable safety requirements.
Product Literature
Instruction Manuals
- PureAire Universal Gas Detector Instruction Manual – Rev. 4.18
- PureAire Universal Gas Detector Instruction Manual – Rev. 4.17
Sensor & Startup Information
- Universal Electrochemical Cell Post-Shipping Startup Instructions
- PureAire Renewable vs. Disposable Sensor Comparison
Additional Product Literature
Need help selecting the correct PureAire Phosphine Gas Detector range, installation, calibration, or system integration? Call CPS Calibrations at 865-900-8844 or email info@cpscalibrations.com.