METTLER TOLEDO MA55 Analytical Balance
| Brand | METTLER TOLEDO |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic (PRC-manufactured) |
| Model | MA55 Analytical Balance |
| Pricing | Upon Request |
Overview
The METTLER TOLEDO MA55 Analytical Balance is a precision laboratory instrument engineered for routine analytical weighing tasks in quality control, research, and educational environments. It operates on electromagnetic force compensation (EMFC) technology — the industry-standard principle for high-resolution analytical balances — delivering stable, drift-compensated measurements with reproducible accuracy under standard ambient conditions. Designed for daily operational reliability rather than ultra-micro applications, the MA55 provides a 0.1 mg readability across its 55 g maximum capacity, meeting the performance expectations of ISO/IEC 17025-compliant laboratories for non-critical quantitative analysis, formulation checks, and sample preparation workflows. Its compact footprint and integrated draft shield compatibility make it suitable for benchtop deployment in regulated and non-regulated settings alike.
Key Features
- Electromagnetic force compensation (EMFC) sensor architecture ensures long-term stability and minimal thermal drift.
- High-contrast backlit LCD display with intuitive icon-based navigation and on-screen step-by-step guidance for common weighing procedures (e.g., piece counting, percentage weighing, density determination).
- Touch-sensitive front-panel keys with tactile feedback — sealed design prevents particulate ingress and supports rapid wipe-down cleaning with ethanol or isopropanol.
- Internal calibration routine activated via front-panel menu; supports scheduled auto-calibration using built-in reference weights to maintain traceability between external verification intervals.
- Draft shield compatibility (optional accessory) enables operation in environments with minor air currents without compromising repeatability.
- Rugged housing constructed from reinforced ABS polymer and tempered glass components, tested per IEC 61000-4-2 (ESD) and IEC 60529 IP30 standards for mechanical robustness and electrostatic immunity.
Sample Compatibility & Compliance
The MA55 accommodates standard laboratory sample containers including weighing boats, crucibles, vials, and filter papers up to 120 mm in diameter. Its pan geometry and center-of-gravity alignment minimize off-center loading errors. The balance complies with international metrological requirements outlined in OIML R 76-1 (2021) for Class II analytical instruments and meets essential safety and EMC directives under the EU Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU. While not pre-certified for FDA 21 CFR Part 11 compliance out-of-the-box, its audit-trail-capable firmware (via optional LabX Lite connectivity) supports configuration for GLP/GMP-aligned documentation when deployed with validated networked software.
Software & Data Management
Data export is supported natively through dual serial interfaces: RS232 (legacy printer/PC connectivity) and USB-A (for direct transfer to flash drives or connection to Windows/macOS systems). The balance transmits ASCII-formatted data streams compatible with Excel, LIMS, and ELN platforms without proprietary drivers. Optional integration with METTLER TOLEDO LabX Lite (free downloadable software) enables automated report generation, user access control, electronic signature support, and basic audit trail logging — facilitating alignment with ISO 17025 clause 7.7 (result reporting) and USP analytical instrument qualification frameworks.
Applications
- Raw material verification and batch release testing in pharmaceutical and chemical manufacturing.
- Weighing standards and reference materials during method validation and calibration verification.
- Student laboratory exercises requiring reliable sub-milligram resolution without advanced automation.
- Quality assurance checks in food and cosmetics production, including net content verification and ingredient ratio control.
- Environmental lab sample preparation where consistent tare management and moisture-resistant operation are required.
FAQ
What is the readability and maximum capacity of the MA55 Analytical Balance?
The MA55 offers 0.1 mg readability with a 55 g maximum capacity — optimized for general-purpose analytical workloads where ultra-high sensitivity is not mandated.
Does the MA55 support internal calibration with automatic adjustment?
Yes — it features an internal motorized calibration mechanism using factory-traceable reference masses; users may schedule or trigger calibration manually via the interface.
Can the MA55 be connected to a laboratory information management system (LIMS)?
Direct LIMS integration is achievable via RS232 or USB-A using configurable ASCII output protocols; no middleware is required for basic data ingestion.
Is the MA55 manufactured in accordance with ISO 9001 quality management standards?
All METTLER TOLEDO production facilities — including the Shanghai site — operate under ISO 9001:2015 certified quality systems, with documented process controls for final assembly and functional testing.
What environmental conditions are recommended for optimal performance?
Operational temperature range: 10–30 °C; relative humidity: ≤80 % RH (non-condensing); installation on vibration-dampened surfaces is advised to maintain repeatability below 0.3 mg standard deviation.
