Palintest Lumiso Pooltest 3 Portable Ozone Photometer

Overview

The Palintest Lumiso Pooltest 3 is a dedicated portable photometer engineered for accurate, field-deployable quantification of dissolved ozone (O₃) in water using the standardized DPD (N,N-Diethyl-p-phenylenediamine) colorimetric method. As the original inventor of the DPD methodology, Palintest Ltd.—a UK-based leader in water quality instrumentation since 1967—has integrated decades of analytical expertise into this compact device. The Lumiso Pooltest 3 employs a fixed-wavelength LED optical system centered at 530 nm, coupled with a precision narrow-band interference filter to minimize spectral interference and maximize photometric stability. Its optimized light path geometry enhances signal-to-noise ratio, particularly critical for low-concentration ozone measurements (0.01–5.00 mg/L), where reproducibility and detection fidelity are paramount. Designed for operational environments ranging from bottled water production lines to municipal distribution systems, it delivers direct digital readouts without external software dependency while maintaining full traceability under quality management frameworks.

Key Features

• IP67-rated enclosure ensures reliable operation in high-humidity, dusty, or splash-prone settings—including bottling plants, pump stations, and outdoor treatment facilities.
• Dedicated ozone measurement mode with pre-programmed calibration curves for DPD4 reagent chemistry (Palintest PM056/AP056), eliminating manual curve entry and reducing operator error.
• Backlit graphical LCD (226 × 138 pixels) with intuitive icon-driven interface supports multilingual operation—including English, Spanish, French, and German—without requiring firmware updates.
• Onboard memory stores up to 50 complete test records, each including measured value, timestamp (date/time), operator ID, and test parameter—enabling basic audit trail functionality.
• Two data access pathways: physical USB connection for bulk export to spreadsheet-compatible CSV files, and dynamic QR-code generation for instant mobile retrieval of individual test histories.
• Integrated photometric verification protocol using Palintest LMC005D certified calibration filters allows rapid field validation of optical path integrity prior to critical measurements.

Sample Compatibility & Compliance

The Lumiso Pooltest 3 is validated for use with standard 25 mm round glass or plastic cuvettes conforming to ISO 7027 and ASTM D1253 specifications. It is routinely deployed in applications governed by regulatory expectations for residual disinfectant monitoring, including EU Drinking Water Directive (98/83/EC) Annex I parameters, US EPA Guidance for Ozonation in Bottled Water (21 CFR §129), and WHO Guidelines for Drinking-water Quality (4th ed.). While not a standalone GLP-compliant instrument, its timestamped, operator-identified records and optional calibration verification support alignment with laboratory quality systems operating under ISO/IEC 17025 or internal SOPs requiring documented instrument performance checks.

Software & Data Management

No proprietary software installation is required for basic operation. All data handling occurs via native file export over USB (mass storage class) or QR-code scanning using any standard smartphone camera or barcode reader app. Exported CSV files contain structured columns: Test ID, Parameter, Result (mg/L), Unit, Date, Time, Operator Code, and Cuvette ID (if manually entered). For integration into enterprise LIMS or ELN platforms, users may configure automated ingestion via folder-watch scripts or third-party middleware. Firmware updates—delivered as signed .bin files—are applied via USB without host PC software.

Applications

• Real-time verification of ozone dosing efficacy in purified water loops for pharmaceutical manufacturing (compliant with USP and EU GMP Annex 1).
• Routine monitoring of residual ozone concentration post-contact tank in natural mineral water bottling lines to ensure microbiological safety without over-oxidation.
• Field validation of ozone generator output stability during commissioning or preventive maintenance of on-site ozonation systems.
• Supporting HACCP plans in food processing facilities where ozone is used for surface sanitation or process water treatment.
• Educational use in environmental engineering labs for teaching colorimetric assay fundamentals and QA/QC practices in water analysis.

FAQ

Does the Lumiso Pooltest 3 require daily calibration?
No—factory calibration is stable for ≥12 months under normal use. However, Palintest recommends verifying photometric performance before each shift using the LMC005D reference filter.
Can it measure ozone in seawater or wastewater?
It is validated for fresh and low-salinity water matrices (<500 mg/L TDS). High chloride or organic load may interfere with DPD4 reaction kinetics; method validation per ISO 8467 is advised for non-standard matrices.
Is the device compliant with FDA 21 CFR Part 11?
No—its local data storage lacks electronic signature, audit trail, or role-based access control. It may serve as a data capture tool within broader Part 11–compliant workflows when paired with validated LIMS integration.
What reagents are compatible?
Only Palintest-certified DPD4 reagents (PM056 starter pack, AP056 refill packs) are supported to maintain accuracy and lot-to-lot consistency per ISO 8467:2022 Annex B.
How is battery life affected by backlight usage?
With backlight enabled continuously, average runtime is ≈1,200 measurements per set of alkaline AA cells; disabling backlight extends this to ≈2,500 measurements.