The Orbisphere 3650/113 Portable Analyzer is a state-of-the-art solution for professionals who demand accurate, reliable, and portable oxygen monitoring. Whether you're analyzing dissolved oxygen in liquids (ppm) or gaseous oxygen concentrations (% O₂), this instrument delivers laboratory-grade precision in a compact, rugged design engineered for the field.
The Orbisphere 3650/113 Portable Analyzer is a cutting-edge solution designed to meet the high standards of professionals across industries where precise oxygen measurement is critical. Whether you monitoring dissolved oxygen (DO) in liquids such as purified water, process media, or beverages—or gaseous oxygen in controlled environments, this analyzer delivers laboratory-grade precision with the convenience and durability required for field use.
Built with precision engineering and decades of analytical expertise, the 3650/113 ensures accurate, real-time measurements in both gas and liquid phases. This dual-function capability makes it a preferred tool across a wide range of sectors, including:
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Food & Beverage Prevent oxidation in beer, soft drinks, and bottled water
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Pharmaceutical & Biotechnology Monitor DO in WFI (Water for Injection), fermentation, and cleanroom environments
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Power Generation Ensure oxygen control in boiler feedwater and condensate systems
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Semiconductors & Electronics Maintain ultra-low oxygen levels in cleanrooms and chemical baths
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Environmental Monitoring Track DO in lakes, rivers, reservoirs, and wastewater facilities
Key Benefits:
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Dual-mode O₂ analysis: gaseous (%) and dissolved (ppm)
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Accurate, real-time results you can trust
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Rugged, portable design for in-field reliability
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User-friendly interface with advanced data capabilities
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Low cost of ownership through efficient maintenance and long sensor life
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Fully compliant with regulatory and quality standards
Technical Specifications: Orbisphere 3650/113 Portable Oxygen Analyzer
| Parameter | Specification |
|---|---|
| Measurement Parameters | Oxygen (O₂) in gaseous and dissolved phases |
| Measurement Range (Dissolved O₂) | 0.001 ppm to 80 ppm |
| Measurement Range (Gaseous O₂) | 0.001% to 100% O₂ |
| Display Resolution | 0.001 ppm (liquid), 0.001% (gas) |
| Accuracy | ±1% of reading or ±2 ppb (liquid) / ±5 Pa (gas), whichever is greater |
| Signal Drift | <0.5% of reading between services |
| Temperature Compensation | Automatic, range: -5°C to +60°C |
| Operating Temperature | 0°C to +45°C |
| Sample Temperature Range | -5°C to +100°C |
| Power Supply | Two C-type batteries (NiCd or alkaline), total 2.4–3 V |
| Battery Life | Up to 40 hours of continuous operation |
| Data Storage | Up to 500 measurements with timestamp |
| Interface | RS-232C, baud rate: 9600; no parity; 1 stop bit; 0 start bit |
| Dimensions (W × H × D) | 115 × 150 × 220 mm |
| Weight | 2.5 kg |
| Enclosure Protection | IP65 / NEMA 4 |
| Enclosure Material | Stainless steel |
| Certifications | ISO 9001, CE, ATEX II 1 G Ex ia IIC T4 Ga |
| Compatible Membranes | 2952A, 2956A, 2958A, 29552A |
| Response Time (Depending on Membrane) | 7.2 to 90 seconds |
| Minimum Liquid Flow Rate | 50 to 180 mL/min (depending on membrane) |
| Minimum Gas Flow Rate | 0.1 to 3 L/min |
| Minimum Linear Velocity (Liquid) | 30 to 200 cm/sec (depending on membrane) |
| Accuracy | ±1% of reading or ±2 ppb (liquid) / ±5 Pa (gas), whichever is greater |
| Brand | Orbisphere |
| Measuring range | (Dissolved O₂) 0.001 ppm to 80 ppm. (Dissolved O₂) 0.001 ppm to 80 ppm |
