METTLER TOLEDO MS204TS Analytical Balance

Overview

The METTLER TOLEDO MS204TS Analytical Balance is an ISO/IEC 17025–compliant precision instrument engineered for laboratories requiring traceable, reproducible mass measurements in regulated and research-intensive environments. Operating on electromagnetic force compensation (EMFC) principle, the MS204TS delivers high-resolution weighing at 0.1 mg readability across its 220 g maximum capacity—optimized for applications demanding compliance with USP , ASTM E898, and ISO 9001 quality management frameworks. Its monolithic metal sensor housing and die-cast aluminum chassis provide mechanical stability against thermal drift, vibration, and electrostatic interference, while the integrated LevelControl system continuously monitors tilt angle and prompts user-leveling correction before measurement initiation—ensuring metrological integrity without reliance on external bubble vials.

Key Features

• Fully Automatic Calibration Technology (FACT): Compensates for temperature fluctuations in real time via dual internal reference masses; triggers recalibration when ambient temperature changes exceed ±1.5 °C or after predefined time intervals (user-configurable).
• 7-inch color TFT touchscreen interface with gesture-based navigation, graphical data visualization (e.g., trend plots, histogram overlays), and context-sensitive soft keys—designed to reduce operator training time and minimize input errors.
• MinWeigh functionality: Dynamically calculates and enforces minimum sample weight based on user-defined uncertainty thresholds (e.g., 0.1% RSD per USP ), automatically flagging underweight samples during routine QC workflows.
• Robust environmental protection: Chemically resistant housing withstands repeated exposure to acetone, ethanol, and dilute acids; IP54-rated enclosure prevents dust ingress and protects against incidental liquid splashes.
• Dual USB ports (host + device) support direct export of GLP-compliant audit trails to USB flash drives and seamless integration with METTLER TOLEDO LabX software for centralized instrument management.

Sample Compatibility & Compliance

The MS204TS supports a broad range of solid, powdered, and granular samples typical in pharmaceutical formulation, chemical synthesis, and materials science labs. Its 90 mm stainless-steel weighing pan accommodates standard crucibles, volumetric flasks, and tared containers up to 120 mm in height. All firmware and calibration routines comply with FDA 21 CFR Part 11 requirements for electronic records and signatures—including full audit trail logging (user ID, timestamp, action, parameter change) with immutable storage. The balance meets OIML R76-1 Class I accuracy specifications and is certified for legal-for-trade use in non-commercial metrology applications where traceability to SI units is required.

Software & Data Management

Out-of-the-box compatibility with METTLER TOLEDO LabX enables automated SOP execution, customizable report generation (PDF/CSV), and role-based access control aligned with GxP validation protocols. Raw weighing data—including metadata such as environmental conditions (temperature/humidity logged via optional sensor integration), calibration history, and sensor diagnostics—is stored with cryptographic hashing to ensure data integrity. Audit trails are exportable in tamper-evident format compliant with ISO/IEC 17025 clause 7.11 and EU Annex 11 expectations for computerized systems.

Applications

• Pharmaceutical QC: Active pharmaceutical ingredient (API) assay, excipient blending verification, and content uniformity testing per USP .
• Research Chemistry: Precise reagent dispensing for stoichiometric reactions, gravimetric standard preparation (e.g., KHP for acid-base titrations), and catalyst loading optimization.
• Materials Characterization: Density determination via Archimedean method, moisture content analysis by loss-on-drying (LOD), and particulate mass distribution profiling.
• Quality Assurance: In-process checkweighing of filled vials/capsules, statistical process control (SPC) charting using built-in statistics functions (mean, SD, CV%, tolerance limits).
• Academic Teaching Labs: Guided weighing workflows with step-by-step visual prompts, ideal for undergraduate analytical chemistry curricula emphasizing GLP fundamentals.

FAQ

What regulatory standards does the MS204TS meet for pharmaceutical use?

It complies with USP minimum weight requirements, FDA 21 CFR Part 11 for electronic records, and ISO/IEC 17025 clause 6.4.7 on equipment suitability for intended use.
Is external calibration required if FACT is enabled?

No—FACT provides traceable internal calibration; however, periodic verification with accredited external weights (e.g., class E2 or better) is recommended per ISO/IEC 17025 and internal SOPs.
Can the touchscreen be operated with gloves?

Yes—the capacitive screen supports operation with standard laboratory nitrile or latex gloves without degradation in response latency or accuracy.
How is data security maintained during USB transfer?

All exported files include embedded digital signatures and checksums; LabX-managed transfers enforce AES-256 encryption and require authenticated login prior to export initiation.
Does the MS204TS support networked deployment in multi-user lab environments?

Yes—when connected to LabX via Ethernet or Wi-Fi (with optional adapter), it enables centralized monitoring, remote diagnostics, and synchronized firmware updates across instrument fleets.