SERVOTOUGH OxyExact 2200 Process Oxygen Analyzer

Overview

The SERVOTOUGH OxyExact 2200 is a high-integrity, paramagnetic oxygen analyzer engineered for continuous, real-time measurement of oxygen concentration in demanding industrial process and safety-critical applications. Unlike electrochemical or zirconia-based sensors—whose performance degrades with time, temperature, or contaminant exposure—the OxyExact 2200 employs SERVOMEX’s proprietary non-consumptive paramagnetic measurement cell. This solid-state, maintenance-free sensing architecture exploits the strong magnetic susceptibility of molecular oxygen (O₂), enabling direct, interference-free quantification without chemical reaction or sensor depletion. The instrument delivers trace-level resolution down to 0–0.5% O₂ and full-range capability up to 100% O₂, supporting both inert atmosphere monitoring and enriched-oxygen process control. Its robust mechanical design, intrinsic thermal stability, and integrated atmospheric pressure compensation ensure long-term baseline integrity under fluctuating ambient conditions—critical for compliance with ISO 8573, ASTM D3176, and EN 14181 requirements in continuous emission monitoring systems (CEMS) and combustion optimization loops.

Key Features

• Paramagnetic oxygen sensing cell with zero consumables and no drift-prone electrolytes or ceramic elements
• Simultaneous support for ultra-trace (0–0.5% O₂) and full-range (0–100% O₂) measurement modes via field-selectable configuration
• Process-rated transmitter units certified for Zone 1 hazardous areas (ATEX Category 2, IECEx, FM/CSA Class I Div 1) without purge or ventilation requirements
• Single controller unit capable of managing up to six independent transmitter modules—enabling multi-point monitoring across distributed process trains
• Integrated barometric pressure compensation eliminates manual span correction due to altitude or weather-induced ambient shifts
• High-pressure sampling compatibility up to 40 psi (276 kPa) with optional high-temperature transmitter variants rated for hot-wet gas streams—eliminating external chillers, dryers, or condensate traps
• Embedded self-diagnostics including flow verification, cell health monitoring, and automated zero/span validation sequences
• Configurable relay outputs (3 fixed, 4 programmable) for alarm, interlock, and control signal routing per IEC 61511 functional safety guidelines

Sample Compatibility & Compliance

The OxyExact 2200 is validated for use with combustible, corrosive, and high-humidity process gases—including syngas, flare gas, furnace exhaust, nitrogen blanketing streams, and medical-grade oxygen supply lines. Its sealed paramagnetic cell resists poisoning from CO₂, SOₓ, NOₓ, hydrocarbons, and water vapor—unlike catalytic or electrochemical alternatives. All hazardous-area configurations comply with EN 60079-0, EN 60079-11 (intrinsic safety), and EN 60079-1 (flameproof enclosures), with full documentation traceable to third-party Notified Bodies (e.g., SIRA, UL, CSA). The system meets FDA 21 CFR Part 11 data integrity expectations when paired with SERVOMEX’s compliant software suite, and supports GLP/GMP audit trails through timestamped calibration logs and user-access event records.

Software & Data Management

Configuration, diagnostics, and historical trending are managed via SERVOMEX’s web-enabled interface accessible over standard Ethernet (TCP/IP) or serial Modbus RTU/ASCII protocols. The embedded HMI supports multilingual operator menus, real-time trend plots, and configurable alarm thresholds with priority-based notification routing. Data export complies with CSV and OPC UA standards, enabling seamless integration into DCS (e.g., Emerson DeltaV, Honeywell Experion), SCADA, and MES platforms. Firmware updates are delivered via secure HTTPS, with SHA-256 signature verification and rollback capability. Audit logging captures all parameter changes, calibration events, and user login sessions—including IP address, timestamp, and action type—for regulatory review.

Applications

• Combustion air/fuel ratio optimization in fired heaters, boilers, and incinerators
• Oxygen purity verification in cryogenic air separation units (ASUs) and on-site generators
• Inerting and blanketing control in pharmaceutical reactors, solvent recovery systems, and grain silos
• Flare gas composition monitoring per EPA 40 CFR Part 60 Subpart Ja and EU IED directives
• Safety shutdown logic for oxygen-deficient or oxygen-enriched atmospheres in confined space entry protocols
• Quality assurance in heat-treating furnaces, metal annealing lines, and glass melting tanks

FAQ

Does the OxyExact 2200 require periodic sensor replacement?

No—the paramagnetic measurement cell contains no consumable parts and is rated for >10 years of continuous operation under specified environmental conditions.
Can it measure oxygen in hot, wet sample streams without external conditioning?

Yes—high-temperature transmitter variants operate up to 180°C with integrated thermal management; condensation-free analysis eliminates need for chillers or coalescing filters.
Is remote calibration supported?

Yes—automated zero and span verification routines can be initiated locally or via Modbus command; full calibration requires certified span gas but may be scheduled during maintenance windows.
How is compliance with explosion protection standards verified?

Each hazardous-area configuration carries full certification documentation from accredited bodies (e.g., UL E137622, SIRA 15ATEX1043X), including test reports, installation instructions, and marking plates per EN 60079-0.
What cybersecurity measures are implemented in the Ethernet interface?

Role-based access control (admin/operator/guest), TLS 1.2 encrypted web sessions, disabled default credentials, and configurable password policies align with IEC 62443-3-3 SL2 recommendations.