A&D MX-50 Halogen Moisture Analyzer (Imported from Japan)

Overview

The A&D MX-50 Halogen Moisture Analyzer is a precision laboratory instrument engineered for rapid, reproducible determination of moisture content in diverse industrial and research materials. Based on the principle of thermogravimetric analysis (TGA), it quantifies moisture loss by measuring mass change during controlled halogen lamp heating. Unlike conventional infrared or convection ovens, the MX-50 employs a 400 W linear halogen lamp coupled with A&D’s proprietary SRA (Secondary Radiation Assistance) technology—comprising a reflective radiation chamber—to deliver uniform thermal energy distribution across the sample surface. This design minimizes thermal gradients, reduces measurement time by up to 40% compared to standard IR analyzers, and enhances repeatability for heterogeneous samples. The instrument is manufactured under A&D’s Japanese quality control system and distributed globally with full traceability to ISO 9001-certified production facilities. It serves as a validated alternative to classical oven-drying methods per ASTM D4442, ISO 712, and USP , particularly where throughput, operator consistency, and audit-ready documentation are critical.

Key Features

• Halogen heating system with SRA-assisted uniform radiation profile ensures consistent drying kinetics across sample geometries—from fine powders to viscous pastes.
• High-sensitivity SHS (Super Hybrid Sensor) weighing mechanism provides 0.001 g readability and stability under thermal load, enabling accurate moisture calculation even for sub-gram samples.
• Five programmable measurement modes: Standard (adaptive endpoint detection), Automatic (based on Δm/Δt threshold), Rapid (initial 200 °C burst for 3 min), Timed, and Manual—supporting method development and SOP compliance.
• Four drying profiles: Standard, Ramp, Step, and Quick—allowing precise thermal protocol definition to prevent decomposition, charring, or volatile co-evaporation in sensitive matrices (e.g., APIs, botanicals, polymers).
• GLP-compliant data logging: Timestamped measurements include operator ID, calibration history, temperature setpoint, real-time mass curve, and final moisture result—all exportable via RS-232 to WinCT-Moisture software.
• Ergonomic design features heat-shielded wing-type lid handle and removable sample pan holder to mitigate operator exposure during hot-sample handling.
• Modular maintenance architecture: Halogen lamp replacement requires no instrument downtime; quartz glass chamber permits rapid residue removal without disassembly.

Sample Compatibility & Compliance

The MX-50 accommodates solid, granular, powdered, semi-solid (e.g., gels, creams), and low-viscosity liquid samples within its 85 mm diameter stainless-steel pan. Its broad thermal range (50–200 °C) and configurable ramp/step protocols enable method adaptation for thermally labile substances—including pharmaceutical actives, food emulsions, catalyst supports, and clay-based ceramics—without compromising integrity. The instrument meets regulatory expectations for analytical instrumentation under FDA 21 CFR Part 11 (when used with WinCT-Moisture v3.0+ and audit-trail enabled), EU Annex 11, and ISO/IEC 17025. Routine verification uses certified disodium tartrate dihydrate (15.66 % ± 0.3/−0.1 % w/w H₂O), traceable to NIST SRM 2542. Optional AX-MX-43 temperature calibrator provides NIST-traceable thermal validation reports formatted per GLP/GMP requirements.

Software & Data Management

WinCT-Moisture software (included) enables real-time graphical monitoring of mass loss vs. time, derivative curves (dm/dt), and endpoint prediction modeling. Users define custom drying protocols, assign sample IDs, and store up to 20 method templates with embedded parameters (temperature profile, stop criteria, display units). Measurement results—including raw mass data, moisture percentage, dry basis, and wet/dry ratios—are saved in CSV and XML formats for LIMS integration. Audit trails record all user actions, calibration events, and configuration changes with immutable timestamps. Data exports support 21 CFR Part 11-compliant electronic signatures when deployed on validated Windows environments with domain authentication.

Applications

The MX-50 is routinely deployed in QC laboratories for moisture testing of active pharmaceutical ingredients (APIs), excipients, and finished dosage forms per USP ; in food manufacturing for flour, dairy powder, and snack product shelf-life validation; in petrochemical QA for lubricant base oil and catalyst moisture limits; and in academic research for soil hydric characterization, polymer hydration kinetics, and biomass drying optimization. Its ability to resolve moisture differences ≤0.01 % makes it suitable for high-value material release testing where specification limits fall below 1 % w/w.

FAQ

What is the typical measurement time for a standard pharmaceutical powder?
Depending on initial moisture content and selected drying mode, most pharmaceutical powders (e.g., microcrystalline cellulose, lactose monohydrate) yield stable endpoints in 3–8 minutes using the Automatic or Rapid mode.
Can the MX-50 validate moisture content against Karl Fischer titration?
Yes—method correlation studies are supported through parallel testing; A&D provides application notes detailing correlation protocols for common solvents and hygroscopic matrices.
Is temperature calibration mandatory for ISO 17025 accreditation?
While not universally required, accredited labs must demonstrate thermal accuracy for claimed uncertainty budgets; the optional AX-MX-43 temperature calibrator delivers traceable verification at 100 °C and 150 °C points.
How many measurement records can be stored internally?
The MX-50 retains up to 100 complete measurement datasets—including mass curves and metadata—with automatic overwrite protection for critical batches.
Does the instrument support multi-language UI?
The firmware interface is English-only; however, WinCT-Moisture software supports English, Japanese, Chinese, German, and French language packs via installer selection.