Eutech CyberScan TB 1000 Benchtop Turbidimeter

Overview

The Eutech CyberScan TB 1000 is a precision benchtop turbidimeter engineered for reliable, repeatable measurement of turbidity in laboratory and quality control environments. It operates on the principle of nephelometric detection—measuring scattered light intensity at a 90° angle relative to the incident beam—as standardized under ISO 7027 for infrared (IR) mode and US EPA Method 180.1 for white-light mode. This dual-source design enables method-specific compliance without hardware modification: the TB 1000W variant employs a tungsten filament lamp to meet EPA requirements for drinking water and wastewater analysis, while the TB 1000IR utilizes an 850 nm infrared LED to eliminate color interference and conform to ISO 7027 for industrial process water, pharmaceutical excipients, and high-color samples. The instrument features fully automatic range selection across three decades (0.00–9.99 NTU, 10.0–99.9 NTU, and 100–1000 NTU), eliminating manual range switching and minimizing operator error. Its optical path is optimized for stability under ambient lighting conditions, and the cuvette chamber includes mechanical alignment guides to ensure consistent sample positioning.

Key Features

• Automatic 3-range measurement (0–9.99 / 10–99.9 / 100–1000 NTU) with seamless transitions and no user intervention
• Dual-source compatibility: interchangeable white-light (TB 1000W) and infrared (TB 1000IR) optical modules, each certified to respective regulatory standards
• High-resolution detection: 0.01 NTU resolution in the low range, supporting trace-level clarity verification in purified water systems and cleanroom rinse validation
• GLP-compliant data handling: all measurements are automatically time- and date-stamped; internal memory retains calibration history, operator ID (via optional password protection), and last-calibration expiry alerts
• Rapid-response optics: full-scale stabilization in under six seconds, enabling efficient batch testing of up to 30 samples per hour in routine QC workflows
• Modular light source design: quick-release lamp/LED assembly allows field replacement without optical realignment or recalibration
• Robust ABS housing rated for continuous operation in ISO Class 5–8 laboratory environments; fanless thermal management ensures vibration-free optical stability

Sample Compatibility & Compliance

The TB 1000 accepts standard 25 mm round glass or disposable plastic cuvettes (30 mL fill volume), with integrated O-ring sealing to prevent leakage during insertion. It accommodates samples with temperatures from 0 to 50 °C and tolerates moderate suspended solids concentrations without clogging or window fouling. Regulatory alignment is embedded in firmware architecture: the IR mode enforces ISO 7027 spectral and angular tolerances (including 850 ± 30 nm wavelength and 90 ± 2.5° scatter geometry), while the white-light mode validates against EPA 180.1 photometric linearity and stray-light rejection thresholds. All calibrations use NIST-traceable formazin or polymer-based standards (0.02, 10.0, and 1000 NTU), and the system logs calibration drift metrics for internal QA review. The device meets IEC 61010-1 safety requirements for laboratory electrical equipment and supports audit-ready documentation for FDA 21 CFR Part 11–aligned environments when paired with compliant data acquisition software.

Software & Data Management

Data export is facilitated via RS232C serial interface (no USB bridge required), compatible with terminal emulation software (e.g., Tera Term, PuTTY) and LIMS integration middleware. Each transmission packet includes measurement value, NTU unit, timestamp (YYYY-MM-DD HH:MM:SS), calibration status flag, and instrument serial number—enabling traceability to individual test runs. Firmware supports configurable auto-print functionality for direct connection to serial printers, and optional PC software (Eutech LogPro v3.x) provides graphical trend analysis, calibration curve visualization, and PDF report generation with digital signature fields. All stored events—including power cycles, calibration attempts, and range switches—are retained in non-volatile memory with write-cycle protection, ensuring integrity during unexpected shutdowns.

Applications

• Drinking water treatment: verification of coagulation/flocculation efficiency and final filter effluent clarity per EPA protocols
• Pharmaceutical manufacturing: monitoring of WFI (Water for Injection) and Purified Water systems in accordance with USP and EU GMP Annex 1
• Food & beverage QA: consistency checks for juices, dairy products, and brewing wort prior to pasteurization or filtration
• Environmental labs: sediment transport studies, stormwater runoff characterization, and wetland restoration monitoring
• Academic research: colloidal stability assays, nanoparticle dispersion quantification, and polymer aggregation kinetics
• Industrial boiler feedwater: early detection of condensate contamination by iron oxides or organic carryover

FAQ

Does the TB 1000 require annual factory recalibration?
No—routine user calibration using certified standards satisfies ISO/IEC 17025 metrological requirements. Factory recalibration is recommended only after physical impact, exposure to condensation, or observed deviation exceeding ±1.5% of reading during verification.
Can the TB 1000W and TB 1000IR share the same cuvette set?
Yes—both variants use identical 25 mm round cuvettes with matching optical path length and refractive index compensation. No revalidation is needed when switching sources.
Is RS232 output compatible with modern Windows 11 systems?
Yes, via a certified FTDI-based USB-to-RS232 adapter. Driver installation is plug-and-play; no proprietary software is required for basic ASCII data streaming.
What happens if a calibration expires during a scheduled test run?
The instrument displays “CAL EXPIRED” and disables measurement until recalibration or administrator override (password-protected), enforcing GLP adherence without interrupting workflow continuity.
How is stray light performance verified during IQ/OQ?
The firmware includes a built-in stray light diagnostic mode that measures detector response to zero-turbidity air and deionized water blanks, reporting signal-to-noise ratio (SNR) and dark-current offset—parameters documented in the Installation and Operational Qualification protocol template provided with the instrument.