Timepower TP309 Benchtop Turbidimeter
| Brand | Timepower |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Benchtop / Laboratory |
| Model | TP309 |
| Measurement Range | (0.0–100.0) NTU or (100.0–1000) NTU |
| Resolution | 0.01 NTU |
| Operating Temperature | (5–45) °C |
| Accuracy | ±2% F.S. for 0–100 NTU |
Overview
The Timepower TP309 Benchtop Turbidimeter is a precision optical instrument engineered for reliable, repeatable turbidity measurement in laboratory and quality control environments. It operates on the principle of nephelometry—measuring the intensity of light scattered at 90° by suspended particles in a liquid sample. Unlike absorbance-based photometers, the TP309 employs a calibrated tungsten-halogen light source and a silicon photodetector optimized for 90° scatter detection, ensuring compliance with ISO 7027 (infrared LED mode optional per configuration) and USP turbidity standards. Its dual-range capability (0.0–100.0 NTU and 100.0–1000 NTU) enables seamless transition between low-turbidity ultrapure water analysis and high-turbidity industrial effluent monitoring—critical for power generation, semiconductor rinse validation, and pharmaceutical water system qualification.
Key Features
- Auto-timing function with audible/visual alert: Ensures consistent sample equilibration time before measurement, reducing operator-induced variability and supporting GLP-compliant documentation.
- Dual-range optical path design: Switches automatically between high-sensitivity and extended-range detection modes without manual recalibration or cuvette replacement.
- Stable thermal management: Internal temperature stabilization maintains detector responsivity across the full operating range (5–45 °C), minimizing drift during extended batch analysis.
- Calibration traceability: Supports multi-point calibration using NIST-traceable Formazin or StablCal® standards; stores up to 10 user-defined calibration curves with timestamp and operator ID.
- Rugged benchtop architecture: Aluminum alloy housing with ESD-safe surface finish; meets IEC 61010-1 safety requirements for laboratory instrumentation.
Sample Compatibility & Compliance
The TP309 accepts standard 25-mm round glass or disposable plastic cuvettes (10-mm or 50-mm path length). It accommodates samples with viscosity up to 10 mPa·s and particle sizes ranging from sub-micron colloids to coarse suspensions (up to 200 µm). The instrument complies with key regulatory frameworks including ASTM D6508 (standard test method for turbidity of water), ISO 7027-1:2016 (turbidity measurement by infrared nephelometry), and pharmacopeial requirements for Purified Water (PW) and Water for Injection (WFI) testing under USP and EP 2.2.2. All measurements adhere to Good Laboratory Practice (GLP) data integrity principles, with non-erasable audit trails for calibration, measurement, and maintenance events.
Software & Data Management
The TP309 features embedded firmware with USB 2.0 interface for direct connection to Windows-based laboratory PCs. Optional Timepower LabLink™ software provides full data export (CSV, PDF, XML), real-time graphing of turbidity trends, statistical process control (SPC) charting (X-bar/R), and automated report generation compliant with FDA 21 CFR Part 11 requirements—including electronic signatures, role-based access control, and immutable audit logs. Data storage supports ≥10,000 measurement records with embedded metadata (date/time, operator ID, calibration status, ambient temperature).
Applications
- Power industry: Monitoring condensate polishers, boiler feedwater, and demineralized water loops for particulate ingress.
- Pharmaceutical manufacturing: Routine verification of WFI distribution systems, clean-in-place (CIP) rinse endpoints, and filter integrity challenge tests.
- Environmental labs: EPA Method 180.1 compliance for wastewater discharge reporting and drinking water compliance testing.
- Semiconductor fabs: Ultrapure water (UPW) qualification per SEMI F63 guidelines, especially post-UV oxidation and final polishing stages.
- Chemical & petrochemical QC: Catalyst slurry homogeneity assessment, polymer emulsion stability evaluation, and brine clarity verification prior to desalination feed.
FAQ
Does the TP309 support ISO 7027-compliant infrared measurement?
Yes—the instrument offers optional IR LED excitation mode (850 nm) configurable via firmware update, enabling direct alignment with ISO 7027-1:2016 requirements for reduced color interference.
Can it be integrated into a LIMS environment?
Yes—via ASCII protocol over USB or RS-232, the TP309 transmits measurement results, calibration status, and error codes in structured format compatible with major LIMS platforms (e.g., Thermo Fisher SampleManager, LabVantage).
What is the warm-up time required for stable readings?
Less than 15 minutes after power-on; internal thermal compensation ensures measurement stability within ±0.02 NTU after 10 minutes under ambient conditions.
Is third-party calibration certification available?
Yes—Timepower provides UKAS-accredited calibration certificates (ISO/IEC 17025) upon request, traceable to NPL primary standards.
How often does the optical system require maintenance?
The sealed optical path requires no routine alignment; annual verification of detector linearity and source output stability is recommended per ISO/IEC 17025 quality assurance protocols.
