Lamotte Color Q PRO-7 Portable Photometric Water Quality Analyzer

Overview

The Lamotte Color Q PRO-7 is a handheld, microprocessor-controlled photometric analyzer engineered for rapid, field-deployable water quality assessment in swimming pools, spas, and recreational water facilities. Unlike traditional comparator-based kits, the Color Q PRO-7 employs reflectance photometry—measuring light absorption at specific wavelengths from stabilized reagent reactions—to deliver quantitative, instrument-grade results without subjective visual interpretation. Its embedded firmware implements standardized colorimetric methodologies aligned with ASTM International and U.S. Environmental Protection Agency guidelines, ensuring methodological consistency across operators and sites. The device operates on a fixed-wavelength optical engine calibrated for seven critical parameters, eliminating inter-lot variability associated with manual chart matching. Designed for daily operational use—not just spot-checking—the PRO-7 integrates ergonomic controls, multilingual interface support, and robust environmental sealing to maintain accuracy under humid, chlorinated, or outdoor conditions.

Key Features

• Integrated reflectance photometer with factory-calibrated optical path and LED light source optimized for pool water matrixes
• Seven-parameter testing capability: free chlorine, total chlorine, bromine, pH, total alkalinity, calcium hardness, and cyanuric acid
• Intuitive button-driven navigation with real-time on-screen prompts in English, Spanish, or French—no external software or translation required
• IP67-rated enclosure providing full dust ingress protection and submersion resistance up to 1 meter for 30 minutes
• Auto-power-down after 5 minutes of inactivity to extend battery life; powered by two standard AA alkaline cells (included)
• On-device data storage for up to 50 test records per parameter, each timestamped and tagged with measurement units and lot-specific calibration identifiers
• No routine recalibration needed—optical stability maintained via sealed optical chamber and temperature-compensated sensor architecture

Sample Compatibility & Compliance

The Color Q PRO-7 is validated for use with clarified, non-turbid pool and spa water samples within ambient temperature ranges of 10–40 °C. It accommodates standard 10 mL sample volumes drawn directly from circulation lines or surface skimmers. All test chemistries are supplied as pre-measured, foil-sealed reagent tablets compliant with ASTM D1293 (pH), D511 (calcium hardness), D859 (cyanuric acid), and EPA Method 334.0 (chlorine). The instrument’s firmware embeds method-specific reaction timing and wavelength selection, ensuring conformance with regulatory testing protocols required for facility logbook documentation and health department inspections. While not GLP-certified as a standalone system, its audit-ready data logging supports traceability under ISO/IEC 17025-accredited laboratory workflows when used as a field screening tool.

Software & Data Management

Data generated by the Color Q PRO-7 remains stored locally in non-volatile memory and can be manually reviewed on-device via scrollable history display. Each record includes measured value, unit, test date/time, parameter ID, and reagent lot number—enabling cross-reference with QC logs. Though the device lacks Bluetooth or USB connectivity, its structured output format permits transcription into LIMS or spreadsheet-based QA/QC tracking systems. Firmware updates (when released) are delivered via Lamotte’s authorized service centers to preserve metrological integrity. For facilities requiring electronic audit trails, the PRO-7 serves as a compliant front-end sensor when paired with third-party data capture solutions that comply with FDA 21 CFR Part 11 requirements for electronic records.

Applications

• Routine daily monitoring of commercial and municipal swimming pools to verify compliance with CDC Model Aquatic Health Code (MAHC) thresholds
• Pre-opening verification testing for seasonal aquatic facilities prior to public access
• Troubleshooting water balance issues—including pH drift, scaling potential, and chlorine demand anomalies—through simultaneous multi-parameter correlation
• Staff training and certification programs where objective, repeatable measurement replaces subjective color-matching proficiency assessments
• Third-party inspection support for health departments conducting unannounced facility audits
• Mobile service technician workflows requiring portable, battery-operated instrumentation with minimal consumables logistics

FAQ

Does the Color Q PRO-7 require annual calibration or optical alignment?
No. The optical system is factory-aligned and sealed; no user-accessible calibration is supported or required under normal operating conditions.
Can test results be exported to a computer or cloud platform?
Not natively—the device stores data internally only. Export requires manual entry or integration with external data capture hardware/software.
Are reagent tablets compatible with other Lamotte instruments?
Yes—Color Q PRO-7 uses the same tablet formulations as the Color Q 7 and Smart2 models, ensuring supply chain continuity across legacy fleets.
What is the shelf life of unused reagent tablets?
Unopened foil packets retain efficacy for 24 months when stored below 30 °C and protected from humidity and UV exposure.
Is the device suitable for saltwater pool applications?
Yes—its chloride-tolerant optics and algorithmic compensation accommodate typical salt concentrations (<6,000 ppm) without interference to chlorine or pH measurements.