Eutech CyberScan DO6000 Dissolved Oxygen Meter

Overview

The Eutech CyberScan DO6000 is a high-performance benchtop dissolved oxygen (DO) meter engineered for precision environmental and wastewater laboratory applications. It employs a polarographic (Clark-type) electrochemical sensor principle—where molecular oxygen diffuses through a gas-permeable membrane and undergoes reduction at a cathode in an electrolyte-filled cell—to deliver stable, trace-level DO quantification in aqueous samples. Unlike optical (luminescence-based) sensors, the DO6000’s Clark electrode architecture provides robust performance in turbid, particulate-laden, or low-flow environments typical of BOD incubation studies and activated sludge characterization. Its extended measurement range of 0.00–60.00 mg/L (equivalent to 0–1272 mbar partial pressure or 0–600.0% air saturation) supports demanding protocols including EPA Method 410.4 for five-day biochemical oxygen demand (BOD₅) determination using self-stirring electrodes—eliminating manual agitation and improving inter-laboratory reproducibility.

Key Features

• Polarographic DO sensing with integrated temperature, salinity, and barometric pressure compensation—automatically applied during measurement to ensure thermodynamic consistency per ISO 5814 and ASTM D888.
• Self-stirring DO probe compatibility for standardized BOD₅, OUR (oxygen uptake rate), and SOUR (specific oxygen uptake rate) assays—enabling compliance with EPA-approved aerobic respiration protocols.
• Windows CE–driven 11.43 × 15.24 cm color touchscreen interface with intuitive icon-driven navigation, real-time error diagnostics, and context-sensitive help prompts—designed for multi-user lab environments with minimal training overhead.
• Full GLP (Good Laboratory Practice) support: timestamped data logging (1000 records), operator ID fields, calibration history tracking, and audit-ready export via USB, SD card, or Ethernet (RJ45).
• Dual-unit display capability (mg/L, % saturation, mbar) with configurable resolution (0.01 mg/L / 0.1 mbar / 0.1%) and user-defined alarm thresholds for process control and QC flagging.

Sample Compatibility & Compliance

The DO6000 is validated for use across freshwater, seawater, wastewater effluents, activated sludge suspensions, and nutrient-rich biological media. Its automatic salinity (0.0–45.0 ppt) and atmospheric pressure (450–825 mmHg) compensation algorithms align with ISO 5814:2012 and US EPA 40 CFR Part 136 requirements for field- and lab-based DO reporting. The instrument meets IEC 61010-1 safety standards for electrical equipment used in laboratory settings and supports 21 CFR Part 11–compliant data integrity when paired with Eutech’s optional CyberLink software (version 3.2+), enabling electronic signatures, audit trails, and secure user role management.

Software & Data Management

Data acquisition and reporting are streamlined via native USB mass storage mode and SDHC card support—allowing direct export of CSV-formatted datasets compatible with LIMS, Excel, or statistical analysis platforms (e.g., JMP, Minitab). Optional CyberLink PC software enables remote instrument configuration, batch calibration validation, trend visualization, and automated report generation—including BOD₅ calculation templates preloaded with EPA-defined dilution factors and incubation time logic. All stored measurements include embedded metadata: date/time stamp, probe serial number, calibration status, ambient pressure/salinity values, and operator ID—ensuring full traceability per ISO/IEC 17025 accreditation requirements.

Applications

• Regulatory BOD₅ testing in municipal and industrial wastewater treatment plants (per EPA 405.1 and ISO 5815-1).
• Oxygen transfer efficiency (OTE) evaluation in aeration basins using dynamic OUR/SOUR profiling.
• Environmental monitoring of eutrophication risk in lakes and estuaries via longitudinal DO saturation mapping.
• Bioreactor process control in pharmaceutical and biotech R&D labs—tracking aerobic metabolic activity under varying DO setpoints.
• Educational laboratories conducting water quality curriculum modules aligned with AP Environmental Science and university-level limnology courses.

FAQ

Does the DO6000 support automatic BOD₅ calculation?
Yes—the instrument calculates BOD₅ automatically when paired with a self-stirring DO probe and configured with initial/final DO readings, sample dilution factor, and incubation duration per EPA Method 410.4.
Is calibration traceable to NIST standards?
While the DO6000 itself is not a primary standard, its calibration routine accepts zero-oxygen (sodium sulfite) and saturated-air (100% O₂ at known T/P/S) reference points traceable to NIST SRM 2810 (dissolved oxygen in water) and ISO 5814 reference conditions.
Can the DO6000 be integrated into a networked lab infrastructure?
Yes—it features RJ45 Ethernet connectivity and supports DHCP/Static IP assignment, enabling centralized firmware updates, remote diagnostics, and integration with enterprise LIMS via TCP/IP-based data polling.
What maintenance is required for long-term accuracy?
Electrolyte replenishment every 2–3 months, membrane replacement every 6–12 months (depending on sample matrix), and quarterly verification against certified DO standards are recommended per Eutech’s Maintenance Schedule M-DO6000 Rev. 4.2.
Does the instrument comply with FDA 21 CFR Part 11 for electronic records?
When used with CyberLink v3.2+ and configured with password-protected user roles, digital signature workflows, and immutable audit logs, the DO6000 satisfies predicate rule requirements for electronic record retention in GMP-regulated environments.