A&D MC Series Ultra-Precision Analytical and Precision Balances

Overview

The A&D MC Series ultra-precision balances represent a benchmark in high-stability mass measurement for analytical laboratories, quality control environments, and metrology applications requiring traceable, reproducible results. Engineered for compliance with OIML R111 Class F1 reference standard for weight calibration, these balances employ electromagnetic force compensation (EMFC) transduction technology—ensuring long-term stability, minimal hysteresis, and exceptional resistance to environmental drift. The series comprises four distinct models—MC-1000 (1.1 kg capacity, 0.1 mg readability), MC-6100 (6.1 kg, 1 mg), MC-10K (10.1 kg, 10 mg), and MC-30K (31 kg, 10 mg)—each optimized for specific load-to-resolution ratios without compromising mechanical integrity or thermal equilibrium response. All units feature automatic internal calibration driven by motorized built-in reference masses, eliminating manual intervention and reducing operator-induced uncertainty. The 1.5-second stabilization time is achieved through adaptive digital filtering algorithms that dynamically suppress low-frequency vibrations and air-current disturbances—critical for installations in non-dedicated lab spaces or near HVAC systems.

Key Features

• Extended readability: Displays one digit beyond nominal resolution (e.g., 0.0001 g on MC-1000), enabling detection of minute mass differentials in container tare monitoring or gravimetric titration workflows.
• Active drift compensation: Integrated temperature-compensated sensor architecture and real-time sensitivity monitoring correct for thermal coefficient effects (±2 ppm/°C on MC-1000; ±3 ppm/°C on MC-6100).
• Automatic eccentric load correction: Optional centering pans (AX-MCxxxPAN series) work with the balance’s auto-offset algorithm to maintain accuracy under off-center loading—essential for irregular samples or routine vessel weighing.
• Dual shielding design: Standard glass draft shields (MC-1000/MC-6100) or reinforced acrylic enclosures (MC-10K/MC-30K) provide ISO 17025-compliant environmental isolation without obstructing ergonomics.
• GLP/GMP-ready firmware: Built-in audit trail logging, user access levels, electronic signature support, and timestamped calibration records satisfy FDA 21 CFR Part 11 and EU Annex 11 requirements when paired with compliant software.
• Multi-protocol connectivity: RS-232C as standard; USB 2.0 (MC-1000/MC-6100 only); optional analog voltage (0–5 V / 0–10 V), 4–20 mA current loop, and comparator outputs with audible alert—enabling integration into automated dispensing, checkweighing, or LIMS-controlled processes.

Sample Compatibility & Compliance

The MC Series accommodates diverse sample geometries and handling protocols across regulated and research settings. Large-diameter pans (up to 270 × 210 mm on MC-30K) support voluminous containers, animal weighing platforms (GX-12/GXK-12), and density determination kits (GX-13 for MC-1000). All models meet mechanical and metrological requirements of OIML R111 Class F1 for verification of reference weights up to 5 kg. Environmental robustness includes IP54-rated electronics (main unit), while optional accessories such as GX-07K waterproof RS-232 cable (5 m) extend operational flexibility in industrial QC zones. The balances are validated for use in accordance with ISO/IEC 17025:2017 clause 6.4.10 (equipment verification), USP and , and ASTM E898-22 (standard guide for analytical balance selection and use).

Software & Data Management

Data integrity is enforced via native firmware features including configurable data export formats (CSV, TXT), automatic file naming with metadata (date/time/operator ID/balance ID), and password-protected configuration locks. When connected to A&D’s AD-1687 WinCT software (optional), users gain full traceability: calibration history dashboards, trend analysis of repeatability over time, statistical process control (SPC) charting, and electronic batch record generation compatible with GxP-aligned documentation systems. Audit trails capture all critical events—including calibration initiation, parameter changes, and zero-point adjustments—with immutable timestamps and operator authentication. Exported datasets retain embedded calibration certificate references and uncertainty budgets per ISO/IEC Guide 98-3 (GUM).

Applications

• Reference weight calibration labs performing periodic verification against national standards.
• Pharmaceutical R&D labs conducting high-sensitivity excipient blending studies or residual solvent quantification.
• Materials science facilities measuring density, specific gravity, or powder flow characteristics using integrated density kits.
• Food safety testing labs executing AOAC 992.17-compliant moisture loss assays requiring sub-milligram repeatability.
• Academic metrology courses demonstrating uncertainty propagation, buoyancy correction, and air density compensation principles.
• Electronics manufacturing sites performing component lot acceptance weighing with pass/fail comparator logic.

FAQ

What OIML class does the MC Series comply with for weight verification?
The MC Series meets OIML R111 Class F1 requirements for verification of standard weights up to 5 kg, verified through factory-certified test reports traceable to NMIJ/AIST.
Can multiple communication options be used simultaneously?
No—GX-04/GX-06 and GX-04K/GX-06K modules are mutually exclusive due to shared hardware bus architecture; only one interface module may be installed per unit.
Is the internal calibration fully automatic or user-initiated?
Calibration is fully automatic: triggered by time schedule, temperature shift (>1°C), or manual command via front panel or remote controller (AD-8922A); no external weights required.
Does the MC-10K/30K support USB connectivity?
No—USB interface is exclusive to MC-1000 and MC-6100 models; MC-10K/30K rely on RS-232C or optional analog/current loop outputs.
Are the optional centering pans compatible with all MC models?
Yes—AX-MC1000PAN, AX-MC6100PAN, and AX-MC10K/30KPAN are mechanically and firmware-matched to their respective base models and enable full auto-centering functionality.