Description
The PureAire Universal Hydrochloric Acid (HCl) Gas Detector is a fixed gas monitoring system designed for continuous detection of hydrochloric acid in chemical processing, manufacturing, water treatment, laboratories, metal processing, and other applications where HCl may be present.
This Hydrochloric Acid Gas Detector is available in 0–15 ppm and 0–200 ppm detection ranges, allowing the appropriate measurement range to be selected for the application. The PureAire Universal Gas Detector uses renewable electrochemical sensor technology for continuous fixed gas monitoring.
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, SCADA systems, ventilation equipment, remote alarms, and other facility safety systems.
PureAire's renewable HCl sensor is designed for long-term service and can be serviced with fresh electrolyte, helping reduce sensor replacement costs and system downtime.
Gas: Hydrochloric Acid / Hydrogen Chloride (HCl)
Available Detection Ranges: 0–15 ppm and 0–200 ppm
Monitor Platform: PureAire Universal Gas Detector
- Continuous hydrochloric acid / hydrogen chloride (HCl) monitoring
- 0–15 ppm and 0–200 ppm detection ranges available
- Renewable electrochemical sensor technology
- Local backlit digital concentration display
- Built-in audible alarm
- Visual alarm LEDs
- Two user-adjustable alarm relays
- Active 4–20 mA analog output
- Continuous sensor and system status monitoring
- Plug-and-play sensor configuration
- PLC and SCADA connectivity
- Optional remote sensor configurations
- Remote monitoring up to 30 ft from transmitter
- 24 VDC operation
- Compact wall-mount design
Available HCl Ranges
| Detection Range | PureAire Part Number |
| 0–15 ppm | 90094 |
| 0–200 ppm | 90098 |
Renewable Sensor Technology
The PureAire Universal Gas Detector uses a renewable electrochemical HCl sensor designed for long-term operation and serviceability. The sensor can be serviced with fresh electrolyte, helping reduce the cost associated with replacing disposable sensor cells.
System Integration
The active 4–20 mA output and dual alarm relays allow the detector to interface with PLCs, SCADA systems, ventilation equipment, external alarms, remote displays, and other facility safety systems.
| Manufacturer | PureAire Monitoring Systems |
| Product Family | Universal Gas Detector |
| Gas Detected | Hydrochloric Acid / Hydrogen Chloride (HCl) |
| Available Ranges | 0–15 ppm and 0–200 ppm |
| Part Numbers | 90094 (0–15 ppm); 90098 (0–200 ppm) |
| Sensor Technology | Renewable electrochemical sensor |
| Sampling Method | Diffusion |
| Accuracy | ±10% of full scale |
| Display | Backlit LCD digital display |
| Analog Output | Active 4–20 mA |
| Alarm Relays | Dual-level adjustable alarm relay contacts |
| Power Requirement | 24 VDC, 80 mA |
| Remote Sensor Option | Available up to 30 ft from transmitter |
| Approximate Unit Weight | 1.2 lb (0.5 kg) |
The PureAire Universal Hydrochloric Acid Gas Detector is designed for continuous HCl monitoring in facilities where hydrochloric acid or hydrogen chloride may be used, stored, processed, or released.
Typical Applications
- Chemical manufacturing and processing
- Metal processing and pickling operations
- Water and wastewater treatment
- Pharmaceutical manufacturing
- Laboratories and research facilities
- Oil and gas facilities
- Chemical storage and handling areas
- Process equipment areas
- Corrosive gas monitoring
- Workplace safety monitoring
Detector placement, detection range, alarm settings, ventilation requirements, and system integration should be selected based on the specific application, potential release points, facility conditions, 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 Hydrochloric Acid Gas Detector range, installation, calibration, or system integration? Call CPS Calibrations at 865-900-8844 or email info@cpscalibrations.com.