METTLER TOLEDO ME4001E Precision Balance
| Brand | METTLER TOLEDO |
|---|---|
| Origin | Shanghai, China |
| Model | ME4001E |
| Maximum Capacity | 4200 g |
| Readability | 0.1 g |
| Repeatability | 0.1 g |
| Linearity | ±0.2 g |
| Calibration Method | External (with standard weights) |
| Dimensions (W × D) | 180 × 180 mm |
| Pan Size | 180 mm diameter |
| Construction | Reinforced metal frame with durable housing |
| Display | Backlit LCD with large-digit readout |
Overview
The METTLER TOLEDO ME4001E Precision Balance is an entry-level yet rigorously engineered analytical balance designed for routine laboratory and industrial weighing tasks requiring consistent accuracy and operational robustness. Built upon METTLER TOLEDO’s decades of gravimetric expertise, the ME4001E operates on electromagnetic force compensation (EMFC) technology — a principle that delivers high stability and minimal drift under variable environmental conditions. Unlike strain-gauge-based scales, EMFC ensures linear response across the full weighing range and eliminates mechanical hysteresis, making it suitable for applications where traceable, repeatable mass determination is essential. With a maximum capacity of 4200 g and readability of 0.1 g, the ME4001E bridges the functional gap between compact precision balances and higher-capacity top-loading models — ideal for QC labs, educational institutions, and production floor environments where regulatory compliance, ease of validation, and long-term reliability are non-negotiable.
Key Features
- Electromagnetic force compensation (EMFC) sensor architecture for stable, drift-resistant performance and high reproducibility (±0.1 g repeatability)
- Reinforced metal frame and impact-resistant housing engineered for durability in shared lab or workshop settings
- Front-access leveling feet with intuitive bubble level indicator — enabling rapid, tool-free horizontal alignment
- Backlit LCD display with oversized digits (18 mm height) optimized for legibility under low-light or ambient glare conditions
- One-touch external calibration interface compatible with certified Class M2 or better weights (calibration certificate traceable to NIST or equivalent national metrology institutes)
- IP31-rated enclosure offering basic protection against dust ingress and incidental liquid splashes during cleaning
- RS232 interface standard for direct data export to LIMS, Excel, or statistical process control (SPC) software
Sample Compatibility & Compliance
The ME4001E accommodates a wide variety of sample types — from powders and granules to packaged components and small assemblies — via its 180 mm diameter stainless-steel weighing pan. Its open design supports compatibility with draft shields (sold separately) for volatile or static-prone samples. While not intended for GMP-regulated final release testing, the balance meets general requirements for ISO/IEC 17025-accredited laboratories performing non-critical mass measurements. It supports basic audit trail functionality through optional PC software (e.g., LabX Lite), enabling time-stamped records of calibration events, user logins, and weight data exports — aligning with GLP documentation expectations. All factory calibration procedures follow METTLER TOLEDO’s internal SOPs aligned with OIML R76 and ASTM E898-22 guidelines for non-automatic weighing instruments.
Software & Data Management
The ME4001E features a native RS232 serial port compliant with standard ASCII output protocols (including SICS and MT-SICS command sets), ensuring seamless integration with third-party data acquisition systems. Optional connectivity modules enable USB-to-RS232 conversion or Ethernet bridging for centralized instrument monitoring. When paired with METTLER TOLEDO’s free LabX Lite software, users gain access to automated report generation, customizable templates, and secure electronic signature support — facilitating adherence to FDA 21 CFR Part 11 requirements for electronic records where applicable. All weight data can be timestamped, user-ID tagged, and exported in CSV or PDF format without proprietary file dependencies.
Applications
- Raw material receipt inspection and batch reconciliation in pharmaceutical and chemical manufacturing
- Formulation checks and ingredient dispensing in food processing and nutraceutical labs
- Sample preparation and aliquoting workflows in academic teaching laboratories
- Inventory management and component counting in electronics assembly and mechanical workshops
- Calibration verification of pipettes, volumetric flasks, and other metrological standards using certified reference masses
- Teaching fundamental metrology concepts including uncertainty estimation, repeatability assessment, and calibration hierarchy
FAQ
What is the recommended calibration frequency for the ME4001E?
Calibration should be performed before first use, after relocation, following any significant environmental change (e.g., temperature shift >5°C), and at least once per shift in regulated environments. Daily verification using a check weight is strongly advised.
Does the ME4001E support internal calibration?
No — the ME4001E requires external calibration with certified weights. Internal calibration is available only on higher-tier models such as the ME-T or XSR series.
Can this balance be used in a fume hood or near HVAC vents?
Stable operation requires placement on a vibration-dampened, non-resonant surface away from air currents. Use of an optional draft shield is mandatory if operating within 1 m of airflow sources.
Is the RS232 interface compatible with modern Windows/macOS systems?
Yes — when connected via a certified USB-to-serial adapter, the balance communicates reliably with current OS versions using standard COM port drivers.
What maintenance is required to ensure long-term accuracy?
Routine cleaning of the pan and housing with isopropyl alcohol; periodic inspection of leveling feet and pan centering; annual verification by an accredited service provider per ISO/IEC 17025.
