METTLER TOLEDO MR4002 Precision Balance

Overview

The METTLER TOLEDO MR4002 Precision Balance is an industrial-grade analytical weighing instrument engineered for high reproducibility, long-term stability, and operational resilience across demanding laboratory and production floor environments. Utilizing electromagnetic force compensation (EMFC) technology, the MR4002 delivers precise mass measurement with resolution down to 1 mg (0.001 g) and maximum capacity of 4,000 g — optimized for routine quality control, formulation, sample preparation, and in-process verification tasks. Its robust mechanical architecture—featuring a full-metal monocoque housing, reinforced load cell mounting, and sealed internal electronics—is validated under extended stress testing for resistance to vibration, thermal drift, dust ingress, and incidental chemical exposure. Unlike entry-level balances, the MR4002 integrates metrological integrity with industrial connectivity, making it suitable not only for ISO/IEC 17025-accredited labs but also for regulated manufacturing workflows requiring traceability and process consistency.

Key Features

• IP43-rated enclosure providing protection against solid objects ≥1 mm and water spray at angles up to 60° from vertical — enabling safe deployment in non-sterile wet or dusty areas including QC labs, packaging lines, and raw material receiving zones.
• Integrated overload protection system that mechanically decouples the weighing pan during accidental overloading or impact events, preserving sensor linearity and extending service life without recalibration.
• AutoCal™ automatic internal calibration with temperature-triggered adjustment ensures continuous accuracy drift compensation across ambient fluctuations typical in uncontrolled factory environments.
• Guided leveling system with visual LED indicators and motorized foot adjustment eliminates subjective manual leveling errors and reduces setup time by >70% compared to traditional bubble-level methods.
• Configurable power management profiles—including standby timeout, display dimming, and deep-sleep mode—reduce average power consumption by up to 40%, supporting sustainability goals and lowering TCO in 24/7 operations.

Sample Compatibility & Compliance

The MR4002 accommodates standard laboratory containers (beakers, weighing boats, vials) as well as larger industrial vessels (up to Ø180 mm pan diameter), supporting both static and dynamic weighing modes. Its design adheres to key international standards including OIML R76 (non-automatic weighing instruments), EN 45501 (electronic balances), and ISO 9001-compliant manufacturing protocols. When deployed with METTLER TOLEDO LabX or connected to MES/SCADA via MT-SICS, the balance supports ALCOA+ data integrity principles: attributable, legible, contemporaneous, original, accurate, complete, consistent, enduring, and available. Audit trail generation, electronic signature enforcement, and role-based function restriction align with FDA 21 CFR Part 11 and EU Annex 11 requirements for regulated pharmaceutical and food production settings.

Software & Data Management

The MR4002 natively supports METTLER TOLEDO’s MT-SICS (Standard Interface for Communication with Scales) ASCII command set — enabling seamless integration into PLC-controlled batching systems, automated dispensing stations, and LIMS/MES platforms without middleware. Optional Ethernet interface allows direct TCP/IP communication for centralized firmware updates, remote diagnostics, and real-time weight streaming. All weight data, metadata (operator ID, timestamp, method name), and event logs (calibration, error, overload) are exportable in CSV or XML formats compatible with statistical process control (SPC) tools. User profiles can be preconfigured via LabX or local touchscreen interface to restrict access to specific applications — e.g., limiting line operators to “Check Weighing” mode while granting QA personnel full calibration and configuration rights.

Applications

• Raw material receipt inspection and lot release verification in chemical, pharmaceutical, and food manufacturing.
• In-process checks during tablet coating, capsule filling, and powder blending operations where repeatability ≤0.1% RSD is required.
• Preparation of reference standards and working solutions in GLP-compliant analytical laboratories.
• Inventory management and component counting in electronics assembly and automotive supply chain facilities.
• Environmental monitoring sample weighing where humidity and particulate contamination challenge conventional balances.

FAQ

What is the maximum permissible error (MPE) for the MR4002 at full capacity?
Per OIML R76 Class II specifications, the MPE is ±0.5 g at 4,000 g capacity, verified during factory certification and traceable to national metrology institutes.
Does the MR4002 support external calibration weights?
Yes — it accepts external calibration using certified Class M2 or better weights, with guided prompts and automatic tolerance validation per ISO 17025 procedures.
Can the balance operate in environments with ambient temperatures between 5 °C and 40 °C?
Yes — its EMFC sensor and temperature-compensated electronics maintain specified performance across this range, with optional draft shield kits recommended above 30 °C.
Is firmware update capability available over network connection?
Firmware updates require USB drive import or local PC connection via RS232/USB; Ethernet-enabled models support remote diagnostics but not over-the-air firmware push.
How does user management prevent unauthorized parameter changes?
Each user group is assigned a permission matrix defining read/write access to calibration, configuration, report generation, and application launch — enforced at boot and session level without OS-level bypass.