PRO2 Expert Oxygen Analyzer
The Orbital Service PRO2 Expert Oxygen Analyzer is a compact, high-accuracy residual oxygen analyzer designed for orbital TIG welding and high-purity purge gas applications.
Featuring a durable zirconium sensor, the PRO2 Expert measures residual oxygen concentrations from 1,000 ppm down to 5 ppm, allowing operators to verify purge quality before welding and reduce the risk of oxidation in stainless steel, duplex, and other precision welding applications.
Its innovative 3D-printed housing, high-resolution OLED display, colour LED indication system, and acoustic alerts provide fast, intuitive oxygen monitoring in both shop and field environments. With USB-C charging, power bank compatibility, and a rechargeable battery, the PRO2 Expert is a practical solution for fabrication shops, pharmaceutical piping, semiconductor systems, and other high-purity process industries.
Key Features
- Residual oxygen analyzer – Designed for orbital welding and high-purity purge gas monitoring
- Wide measuring range – Measures oxygen concentrations from 1,000 ppm down to 5 ppm
- Long-life zirconium sensor – Delivers accurate and reliable oxygen measurements
- Fast startup – Ready to measure in approximately 10 seconds
- Colour LED indication system – Displays oxygen status at a glance for quick verification
- Customizable LED thresholds – Allows indication levels to be adjusted for specific welding requirements
- Integrated acoustic alerts – Audible notifications provide additional operating feedback
- 1" OLED display – High-resolution screen for clear oxygen readings
- USB-C charging – Convenient charging with power bank compatibility for portable operation
- Rechargeable battery – Provides more than 4 hours of continuous runtime
- Automatic shutdown – Preserves battery life during periods of inactivity
- Diffusion-tight FPM gas sampling hose – Supports accurate residual oxygen measurement
- Compact, lightweight design – Easy to transport between fabrication shops and job sites
- Durable 3D-printed housing – Built for demanding industrial environments
Applications
The PRO2 Expert is designed for monitoring residual oxygen during weld purging in applications where internal weld quality is critical.
Common applications include:
- Orbital TIG welding
- High-purity process piping
- Stainless steel and duplex welding
- Pharmaceutical manufacturing
- Semiconductor tubing systems
- Food and beverage processing equipment
- Aerospace fabrication
- Precision industrial welding
Why Choose the Orbital Service PRO2 Expert?
Maintaining proper oxygen levels during weld purging is essential for producing clean, oxidation-free welds in high-purity piping systems.
The PRO2 Expert provides fast, dependable oxygen monitoring in a lightweight portable package, allowing operators to quickly confirm purge conditions before welding begins.
Key advantages include:
- Measures oxygen concentrations down to 5 ppm
- Fast startup for efficient workflow
- Instant visual status with colour LED indication
- Long-life zirconium sensor for dependable performance
- USB-C charging with power bank compatibility
- Lightweight, portable design for shop and field use
- Customizable LED alarm thresholds to suit specific applications
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Residual Oxygen Analyzer |
| Measuring Range | 1,000 ppm – 5 ppm O₂ |
| Sensor Type | Zirconium Sensor |
| Startup Time | Approximately 10 seconds |
| Battery Runtime | >4 hours |
| Power Supply | USB-C (Power Bank Compatible) |
| Display | 1" OLED |
| Housing | Durable 3D-Printed Industrial Housing |
| Dimensions | 170 × 85 × 43 mm |
| Weight | Approximately 440 g |
LED Status Indication
| LED Colour | Oxygen Level |
|---|---|
| 🔴 Red | Above 100 ppm |
| 🟠 Orange | 30–100 ppm |
| 🟢 Green | Below 30 ppm |
LED threshold values can be customized to suit specific welding applications.
Frequently Asked Questions
What is the PRO2 Expert Oxygen Analyzer used for?
The PRO2 Expert measures residual oxygen levels during weld purging, allowing operators to verify that purge conditions are suitable before orbital TIG welding begins.
What is the measuring range?
The analyzer measures oxygen concentrations from 1,000 ppm down to 5 ppm O₂.
Why is residual oxygen monitoring important?
Monitoring oxygen levels helps prevent oxidation (sugaring) inside stainless steel and high-purity piping systems, improving weld quality, corrosion resistance, and overall process reliability.
What type of sensor does the PRO2 Expert use?
The PRO2 Expert features a long-life zirconium sensor, providing accurate and reliable residual oxygen measurements.
How long does the battery last?
The integrated rechargeable battery provides more than four hours of continuous operation and can be conveniently charged via USB-C or a compatible power bank.
What do the LED indicators show?
The colour LED system provides an instant visual indication of oxygen concentration:
• Red: Above 100 ppm
• Orange: 30–100 ppm
• Green: Below 30 ppm
The LED thresholds can also be customized to meet specific welding or purge requirements.
