METTLER TOLEDO T5/T7/T9 New Classic Series Automatic Potentiometric Titrator
| Brand | METTLER TOLEDO |
|---|---|
| Origin | Switzerland |
| Model | T5 / T7 / T9 |
| Measurement Range | ±2000 mV / −26.0 to +40.0 pH |
| Meter Accuracy | 0.01% |
| Meter Resolution | 0.1 mV / 0.001 pH |
| Titration Precision | 0.2 mV / 0.003 pH |
Overview
The METTLER TOLEDO T5/T7/T9 New Classic Series Automatic Potentiometric Titrator is a modular, GxP-ready electrochemical platform engineered for precision, traceability, and method flexibility in regulated and research laboratories. Based on potentiometric endpoint detection—measuring potential difference across a reference and indicator electrode as titrant is incrementally added—the system delivers high reproducibility for acid-base, redox, precipitation, and complexometric titrations. Its architecture supports both volumetric and coulometric Karl Fischer moisture determination (1 ppm to 100% water content), pH and conductivity titrations, and custom electrochemical assays. Designed and manufactured in Switzerland, the series complies with core metrological requirements of ISO/IEC 17025, ASTM E202, USP , and supports full audit trail functionality under FDA 21 CFR Part 11 when used with LabX Titration software.
Key Features
- One Click™ intuitive touchscreen interface with customizable home screen and multi-angle adjustable high-resolution display
- StatusLight™ visual status indicator for real-time instrument readiness, method execution phase, and error alerts—reducing operator cognitive load
- Hot-pluggable SmartElectrode™ and SmartBurette™ technology: embedded RFID chips store calibration history, expiration dates, nominal concentration, and electrode type; automatic recognition prevents mismatched reagent–electrode pairing
- Integrated SmartSample™ wireless sample weighing: direct mass transfer from METTLER TOLEDO balances eliminates manual entry errors; sample metadata (ID, weight, dilution factor) stored on disposable cup RFID tags
- Modular expansion capability: seamless integration of KF volumetric/coulometric modules, pH/conductivity electrode boards, dosing units, and Liquid Handler for automated reagent preparation
- Robust mechanical design with IP20-rated enclosure, CE/UL certification, and temperature-stable analog front-end for low-noise mV/pH signal acquisition
Sample Compatibility & Compliance
The T5/T7/T9 series accommodates liquid, solid, viscous, and heterogeneous samples via compatible sample cups (25–250 mL), magnetic stirrers, and optional InMotion™ automated sample changers with SmartCode™ barcode-driven method assignment. All hardware and firmware comply with IEC 61010-1 for laboratory electrical safety and electromagnetic compatibility (EMC). When operated with validated methods and LabX Titration software, the system meets GLP and GMP data integrity requirements—including electronic signatures, user access control, version-controlled method storage, and immutable audit trails. Electrode compatibility spans glass pH, Ag/AgCl reference, Pt redox, ion-selective, and dual-mode combination electrodes meeting ISO 3696 Grade 2 water specifications.
Software & Data Management
LabX Titration software serves as the central workflow engine—supporting graphical method builder, guided sample weighing, dynamic titration curve visualization, real-time equivalence point calculation (1st/2nd derivative, inflection, Gran plot), and customizable report generation (PDF, CSV, XML). All raw sensor data (mV, pH, temperature, volume), metadata (operator ID, timestamp, environmental conditions), and intermediate calculations are stored in a relational database with SHA-256 hashing for data integrity verification. Backup and restore functions support ISO 27001-aligned data governance policies. Optional cloud synchronization enables remote monitoring and cross-site method harmonization without compromising local data sovereignty.
Applications
- Pharmaceutical QC: assay of active pharmaceutical ingredients (APIs), residual solvent quantification, excipient purity testing per USP/EP monographs
- Food & Beverage: titratable acidity (TA), salt content (argentometric), vitamin C (ascorbic acid), free fatty acids in oils
- Chemical manufacturing: acid number (ASTM D974), base number (ASTM D2896), chloride in caustic soda, peroxide value in fats
- Environmental analysis: alkalinity, hardness, cyanide, sulfide, and fluoride in wastewater per EPA methods 310.1 and 320.1
- Academic research: kinetic titration studies, stability constant determination, polyelectrolyte characterization
FAQ
Does the T5/T7/T9 support compliance with FDA 21 CFR Part 11?
Yes—when deployed with LabX Titration software configured for electronic signatures, role-based access control, and audit-trail-enforced method changes.
Can I use non-METTLER TOLEDO electrodes or burettes?
Third-party electrodes may be physically connected but will not benefit from SmartRecognition™; calibration data and usage history cannot be auto-transferred, and full GxP traceability is compromised.
What is the minimum detectable volume increment during titration?
The system achieves sub-microliter dosing resolution via stepper-motor-driven burettes with integrated position feedback; actual minimum increment depends on selected burette size (10 mL, 20 mL, or 50 mL) and method-defined step size.
Is temperature compensation supported during pH titration?
Yes—integrated Pt1000 temperature sensor enables automatic Nernstian slope correction and real-time pH recalibration based on solution temperature.
How is method validation documented for regulatory submissions?
LabX generates IQ/OQ/PQ-ready documentation packages including instrument configuration reports, calibration logs, performance verification tests (e.g., linearity, repeatability, robustness), and electronic signature–secured validation summaries.
