Hach TU5200 Benchtop Turbidimeter

Overview

The Hach TU5200 Benchtop Turbidimeter is a high-precision laboratory instrument engineered for trace-level and routine turbidity measurement in regulated and research-intensive environments. It operates on the principle of 90° scattered light detection enhanced by a proprietary 360° × 90° optical geometry—where a collimated laser beam illuminates the sample, and scattered photons are captured uniformly around the entire circumference of the cuvette via a conical reflector. This architecture eliminates angular dependency and path-length variability inherent in conventional single-angle detectors, significantly improving measurement reproducibility—especially critical in low-turbidity applications such as ultrapure water monitoring (e.g., pharmaceutical WFI, semiconductor rinse water, or power plant condensate). The instrument complies with core international turbidity standards including EPA Method 180.1, ISO 7027-1:2016, and ASTM D6708, ensuring data comparability across laboratory, pilot, and full-scale process settings.

Key Features

• 360° × 90° scattering detection geometry for superior low-turbidity sensitivity (<0.001 NTU resolution) and minimized particle orientation bias
• Formazin-traceable calibration path aligned with NIST-traceable reference standards; supports single-point calibration from 0–40 NTU to reduce operator burden while maintaining metrological integrity
• 7-inch capacitive touchscreen with intuitive icon-driven interface—fully configurable in English, Spanish, French, German, and Chinese (localization optional)
• Triple USB ports (USB-A ×2, USB-B ×1) enabling direct connection to flash drives, thermal printers, or PC-based instrument control software
• Gigabit Ethernet port supporting DHCP, static IP, and integration into enterprise LIMS or SCADA networks via Modbus TCP or Hach’s proprietary communication protocol
• User-accessible security model with three-tier permission levels (Operator, Supervisor, Administrator) enforcing role-based access control (RBAC) for audit-ready operation
• Zero-oil optical path design—eliminates silicone oil application and lens wiping, removing a major source of inter-operator variability and contamination risk

Sample Compatibility & Compliance

The TU5200 accepts standard 25-mm round glass or quartz cuvettes (10-, 20-, and 50-mm path lengths supported via auto-detection) and accommodates both aqueous and mildly aggressive matrices—including chlorinated drinking water, steam condensate, biopharmaceutical buffers, and beverage filtrates. All measurements adhere to ISO/IEC 17025:2017 requirements for testing laboratories when operated under documented SOPs. Data integrity is reinforced through built-in electronic audit trail functionality compliant with FDA 21 CFR Part 11 (electronic signatures, event logging, and immutable record retention). Instrument validation packages—including IQ/OQ documentation templates and performance qualification protocols—are available upon request for GMP, GLP, and ISO 9001 environments.

Software & Data Management

Hach’s TU Connect™ desktop software (Windows 10/11 compatible) enables full remote configuration, method storage, real-time data streaming, and automated report generation (PDF/CSV/XLSX). Each measurement stores metadata—including operator ID, timestamp, calibration status, cuvette ID, environmental conditions, and raw detector voltage—enabling full traceability. Data export supports hierarchical folder structures synchronized to network shares or cloud storage endpoints. For enterprise deployment, the TU5200 integrates natively with LabVantage LIMS, Thermo Fisher SampleManager, and Waters Empower via configurable API endpoints and structured XML/JSON payloads.

Applications

• Drinking water quality assurance per EPA 180.1 and EU Directive 98/83/EC
• Pharmaceutical water system validation (PW, WFI, SW) per USP , Ph. Eur. 2.2.2, and JP 17
• Power generation cycle chemistry monitoring (condensate, feedwater, boiler blowdown)
• Beverage clarity verification in juice, beer, and bottled water production (EBC scale support included)
• Environmental wastewater effluent compliance reporting (ISO 7027-1, DIN EN ISO 7027)
• Academic and industrial R&D requiring high-resolution turbidity kinetics (e.g., coagulation/flocculation studies, nanoparticle stability assessment)

FAQ

Does the TU5200 require daily recalibration?
No—when operated within specified environmental conditions and using certified Formazin or AMCO AEPA standards, the instrument maintains stability for up to 72 hours between calibrations. A full two-point calibration is recommended before first use, after maintenance, or when changing measurement ranges.
Can the TU5200 measure samples with color or fluorescence?
Yes—the 860 nm near-infrared LED source minimizes interference from colored dissolved organic matter (CDOM) and most common fluorophores. For highly fluorescent or strongly absorbing matrices, optional UV-absorption compensation algorithms are available via firmware update.
Is the instrument compatible with third-party cuvettes?
It supports any ISO-compliant 25-mm round cuvette with polished optical surfaces; however, Hach-certified cuvettes (Cat. No. 2465800) are required to guarantee stated accuracy specifications and maintain warranty coverage.
How is data security enforced during network transmission?
All Ethernet communications use TLS 1.2 encryption; local USB transfers are unencrypted but restricted to authenticated users via session-based file access controls. Audit logs capture every data export event with user ID and timestamp.
What regulatory documentation is provided with the instrument?
Each unit ships with a Certificate of Conformance, Factory Calibration Report (NIST-traceable), and Declaration of Conformity to CE, UKCA, and RoHS directives. Optional IQ/OQ validation kits and 21 CFR Part 11 compliance packages are available separately.