METTLER TOLEDO MX1203N/A Precision Balance
| Brand | METTLER TOLEDO |
|---|---|
| Origin | Germany |
| Model | MX1203N/A |
| Maximum Capacity | 1,220 g |
| Readability | 1 mg |
| Repeatability (typ.) | 0.5 mg |
| Minimum Weight (USP <41>, 0.1% tolerance, typ.) | 1 g |
| Minimum Weight (at U = 1%, k = 2, typ.) | 100 mg |
| Stabilization Time | 1.5 s |
| Calibration | Internal (fully automatic FACT) |
| Pan Dimensions (W × D) | 127 mm × 127 mm |
| Display | 7-inch color TFT touchscreen |
| Interfaces | USB-A, USB-C, Ethernet (LAN), Bluetooth (optional) |
| Protection Class | IP41 |
| Verification Scale Interval (d) | 0.01 g |
Overview
The METTLER TOLEDO MX1203N/A is a high-performance precision balance engineered for laboratories requiring rigorous accuracy, regulatory traceability, and operational efficiency in routine and quality-critical weighing tasks. Operating on electromagnetic force compensation (EMFC) technology, it delivers stable, drift-free measurements under dynamic environmental conditions—including air currents, temperature fluctuations, and vibration—thanks to its patented SmartPan™ weighing pan design. This architecture minimizes settling time to just 1.5 seconds while maintaining 1 mg readability across its full 1,220 g capacity range. Designed and manufactured in Germany, the MX1203N/A complies with international metrological standards including OIML R76-1 and EN 45501, and supports GxP-aligned workflows through built-in audit trails, user authentication, and electronic record integrity per FDA 21 CFR Part 11 requirements.
Key Features
- SmartPan™ Technology: A mechanically decoupled, aerodynamically optimized weighing pan that suppresses turbulence-induced oscillations—enabling rapid stabilization and consistent repeatability of ≤0.5 mg (typ.) even in non-laminar lab environments.
- Automatic Internal Calibration (FACT): Fully motorized, temperature-triggered internal calibration ensures long-term linearity and accuracy without manual intervention; FACT compensates for thermal drift in real time.
- GxP-Ready Software Architecture: Integrated user management with role-based access control (RBAC), electronic signatures, and tamper-evident audit logs compliant with ISO/IEC 17025, USP , and EU Annex 11 expectations.
- 7-inch Color TFT Touchscreen: Intuitive graphical interface with customizable workflows, multilingual support, and context-sensitive help—designed for glove-compatible operation and reduced training overhead.
- Multi-Protocol Connectivity: Native support for USB-A (printer/data export), USB-C (device charging + data), Ethernet (TCP/IP for LabNetwork integration), and optional Bluetooth 5.0 for wireless peripheral pairing.
- Ergonomic & Sustainable Design: Low-profile footprint (100 × 194 × 379 mm), IP41-rated enclosure for dust resistance, and energy-saving mode reducing standby power consumption by up to 70% versus legacy models.
Sample Compatibility & Compliance
The MX1203N/A accommodates a broad spectrum of solid and granular samples—from pharmaceutical excipients and reference standards to industrial powders and packaged goods—within its 127 × 127 mm stainless-steel pan. Its minimum weight performance meets USP criteria at both 0.1% (1 g typical) and 1% (100 mg typical, k=2, U=1%) uncertainty thresholds, making it suitable for quantitative assay preparation, content uniformity testing, and raw material verification. Regulatory documentation—including type evaluation reports, factory calibration certificates, and GxP validation templates—is provided with each unit. The balance is certified to OIML R76-1 Class II for legal-for-trade applications where permitted, and supports GLP/GMP audit readiness via timestamped, immutable measurement records.
Software & Data Management
Embedded LabX® Lite firmware enables seamless data handling without external PCs: direct export to CSV/PDF via USB or network printers, secure cloud upload via LabX Direct, and configurable report generation (e.g., weight + date/time + operator ID + deviation flags). All data transfers comply with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available). Optional upgrade to full LabX software adds advanced statistical process control (SPC), instrument qualification modules (IQ/OQ/PQ), and enterprise-level LIMS/SAP integration via OPC UA or RESTful APIs. Audit trails are encrypted, non-erasable, and retain full metadata—including parameter changes, calibration events, and user logins—for ≥10 years.
Applications
- Pharmaceutical QC labs performing USP -compliant weighing for dissolution testing, tablet hardness calibration, and active pharmaceutical ingredient (API) dispensing.
- Chemical manufacturing sites conducting batch release checks, catalyst dosage verification, and stability study sample preparation.
- Academic research facilities requiring high-reproducibility mass measurements in materials science, polymer synthesis, and nanomaterial formulation.
- Food & beverage QA departments executing net content verification, ingredient blending audits, and HACCP-mandated recordkeeping.
- Contract testing organizations (CTOs) needing 21 CFR Part 11–compliant instruments for client-facing analytical services and regulatory submissions.
FAQ
What is the minimum weight this balance can reliably measure under USP guidelines?
The MX1203N/A achieves a minimum weight of 1 g at 0.1% tolerance (k=2) and 100 mg at 1% tolerance (U=1%), both verified per USP methodology.
Does the balance support automated calibration verification per ASTM E898?
Yes—FACT-enabled internal calibration includes periodic self-checks against built-in reference masses, generating compliance-ready verification reports aligned with ASTM E898 and ISO/IEC 17025 clause 6.5.2.
Can multiple users be managed with differentiated permissions?
Yes—up to 20 user profiles with configurable roles (e.g., Operator, Supervisor, Administrator), password policies, and forced re-authentication intervals.
Is the balance compatible with LIMS or ERP systems?
Native Ethernet and USB-C interfaces support direct integration via standard protocols (HL7, ASTM E1384, or custom ASCII); LabX software extends compatibility to SAP, Oracle, and Thermo Fisher SampleManager.
What documentation is included for IQ/OQ validation?
Factory-supplied validation kits include pre-executed IQ/OQ protocols, test scripts, acceptance criteria, and blank execution records—fully editable and compliant with Annex 15 and GAMP5.

