KEWLAB MA113TA Advanced Touchscreen Halogen Moisture Analyzer

Overview

The KEWLAB MA113TA is an advanced halogen moisture analyzer engineered for rapid, precise, and reproducible moisture content determination in solid and semi-solid samples. It operates on the principle of thermogravimetric analysis (TGA): a calibrated halogen lamp delivers uniform radiant heating to the sample, driving off volatile components—primarily water—while a high-resolution HBM load cell continuously monitors mass loss in real time. The instrument automatically terminates drying when the mass change falls below a user-defined threshold (typically ≤0.002 g over a 60-second interval), ensuring endpoint detection based on dynamic weight stabilization rather than fixed-time protocols. Designed for routine QC/QA laboratories and R&D environments, the MA113TA complies with core method validation requirements outlined in ASTM D4442, ISO 712, and USP <921>, supporting GxP-aligned workflows when integrated with compliant data management practices.

Key Features

• Halogen heating system with annular lamp geometry ensures rapid, homogeneous thermal distribution across the sample surface—reducing edge effects and improving measurement consistency.
• Precision-cast aluminum sample pan paired with an HBM-certified electromagnetic force compensation sensor minimizes mechanical drift and vibration-induced noise, delivering stable weighing performance under thermal load.
• Multi-layer stainless-steel heating chamber with dual-zone intelligent temperature control enables fast ramp-up and tight thermal regulation (±1 °C), significantly shortening typical analysis cycles by up to 40% compared to conventional infrared or quartz-tube systems.
• Dual independent cooling fans accelerate post-analysis chamber cooldown, enabling back-to-back measurements without thermal carryover or operator intervention.
• Full-height transparent observation window allows unobstructed visual monitoring of sample behavior—including browning, foaming, or migration—during drying, supporting method development and anomaly identification.
• Modular, tool-free removable heating chamber simplifies routine cleaning and cross-contamination prevention—critical for regulated pharmaceutical or food-grade applications.
• Large capacitive touchscreen interface (7-inch, 800×480 resolution) supports intuitive navigation, multi-language selection (EN/DE/FR/ES/CN), and on-device method storage (up to 100 user-defined profiles).
• Standard RS232 serial and RJ45 Ethernet interfaces enable seamless integration with LIMS, ERP, or laboratory informatics platforms; optional software supports 21 CFR Part 11-compliant electronic signatures and audit trail generation.

Sample Compatibility & Compliance

The MA113TA accommodates samples ranging from 0.004 g to 110 g, making it suitable for low-mass powders (e.g., active pharmaceutical ingredients), granules, pellets, herbs, polymers, and food matrices. Its open-chamber architecture accepts irregularly shaped or layered specimens without size restriction beyond pan diameter (Ø90 mm). All structural materials—including the sample pan, chamber liner, and housing—meet FDA-compliant material specifications (304 stainless steel, anodized aluminum, borosilicate glass). While the instrument itself is not certified as GMP-compliant out-of-the-box, its hardware design and firmware architecture support qualification (IQ/OQ/PQ) per ISO/IEC 17025 and adherence to GLP/GMP documentation standards when deployed with validated SOPs and controlled calibration records.

Software & Data Management

The analyzer includes embedded firmware supporting three operational modes: Auto (dynamic endpoint detection), Manual (user-initiated start/stop), and Timer (fixed-duration drying). All measurement sessions log timestamped weight-vs.-time curves, final moisture %, dry residue mass, and statistical metadata (e.g., standard deviation of replicate runs). Data export is supported via CSV over RS232 or TCP/IP; optional KEWLAB MoistureSuite™ PC software provides graphical trend analysis, comparative reporting, automated PDF certificate generation, and configurable audit trails meeting FDA 21 CFR Part 11 requirements—including user access controls, electronic signature capture, and immutable record retention. Raw data files are stored in non-proprietary formats to ensure long-term accessibility and third-party interoperability.

Applications

This analyzer serves critical quality control functions across regulated and industrial sectors: in food manufacturing, it verifies compliance with moisture limits for flour, dairy powders, spices, and pet food per AOAC 952.08; in pharmaceuticals, it supports excipient qualification and finished-dose stability testing per USP <921>; in chemicals and polymers, it quantifies residual solvent or hydration water in catalysts, resins, and battery electrode materials; in agriculture, it validates grain moisture prior to storage or milling (aligned with ISO 6540). Its speed and repeatability also make it suitable for teaching labs and method transfer studies where rapid training-cycle iteration is required.

FAQ

What is the typical measurement time for a standard sample?
Measurement duration depends on initial moisture content and thermal stability. For samples with 10–20% moisture (e.g., ground coffee or wet starch), typical run times range from 3–6 minutes under auto mode.
How is endpoint detection determined?
The instrument continuously evaluates mass change rate; drying concludes automatically when the mass variation remains ≤0.002 g for 60 consecutive seconds—a criterion traceable to ISO 712 Annex A.
Can the sample pan be replaced or cleaned between runs?
Yes—the precision aluminum pan is fully removable, wipe-clean, and replaceable; each unit ships with 50 spare pans to support high-throughput environments.
Is temperature calibration traceable to national standards?
The built-in PT100 sensor is factory-calibrated against NIST-traceable references; users may perform field verification using certified reference materials (e.g., sodium tartrate dihydrate, 15.66% H₂O).
Does the device support network authentication or role-based access control?
When used with MoistureSuite™ software, full user-level permissions (admin/operator/auditor), session logging, and encrypted database storage are available to meet internal IT security policies and regulatory review requirements.