Adam PMB Series Infrared Moisture Analyzer

Overview

The Adam PMB Series Infrared Moisture Analyzer is a precision thermal-gravimetric instrument engineered for rapid, reliable moisture content determination in solid and semi-solid samples. It operates on the principle of loss-on-drying (LOD), utilizing a high-power 400 W halogen lamp as a controlled infrared heating source to drive off volatile components—primarily water—while continuously monitoring mass loss via an integrated analytical balance. The system records real-time weight change until stabilization, then calculates moisture content (%) relative to either wet or dry basis per standardized conventions (e.g., ATRO % M and ATRO % S). Designed for routine quality control laboratories, R&D facilities, and production environments, the PMB series delivers consistent repeatability and traceable performance without requiring operator-intensive procedures or external software dependencies.

Key Features

• Triple heating mode selection—Ramp (gradual temperature increase), Step (fixed-temperature dwell), and Standard (predefined profile)—enabling method optimization across diverse sample matrices including powders, granules, pastes, and films.
• Automatic start-up upon lid closure eliminates manual initiation errors and improves inter-operator consistency.
• Dual USB interface architecture: USB Host supports direct plug-and-play data export to FAT32-formatted USB drives without proprietary software; USB I/O enables seamless bidirectional communication with PCs for real-time data logging and remote configuration.
• RS-232 serial port ensures compatibility with legacy LIMS systems and industrial printers compliant with standard ASCII protocols.
• Large dual-line LED display with dynamic range-tracking indicator provides simultaneous visibility of current mass and calculated moisture percentage, reducing cognitive load during high-throughput testing.
• Ergonomic pan support structure facilitates safe, contamination-free sample handling—especially critical when working with hygroscopic or thermally sensitive materials.
• Integrated Kensington security slot meets laboratory physical asset protection requirements under ISO/IEC 27001-aligned site security policies.

Sample Compatibility & Compliance

The PMB series accommodates samples up to 200 g (PMB 202) on a Ø90 mm stainless-steel weighing pan, supporting heterogeneous solids such as pharmaceutical excipients, food ingredients, polymers, minerals, and agricultural commodities. Its 50–160 °C adjustable heating range allows method development aligned with ASTM D4442, ISO 712, and USP <921> guidelines for moisture analysis. While not certified for GMP-regulated environments out-of-the-box, the device supports audit-ready workflows through external calibration documentation, user-accessible method storage (49 programmable profiles), and timestamped result logs (99 entries retained internally). When paired with AdamDU data acquisition software and validated USB storage media, it can contribute to 21 CFR Part 11-compliant electronic record generation when deployed within a documented validation framework.

Software & Data Management

Data integrity is maintained through multiple redundant storage layers: internal non-volatile memory retains up to 99 test results and 49 custom methods with full metadata (date/time, temperature profile, final % moisture, stability threshold). External USB flash drives accept raw CSV exports containing all intermediate mass readings at user-defined intervals, enabling post-hoc statistical analysis in Excel or dedicated QC software. AdamDU software (included) provides graphical trend visualization, batch reporting, and export to PDF or XLSX formats. All interfaces—USB I/O, RS-232, and USB Host—are protocol-transparent and require no driver installation on Windows/Linux/macOS platforms. No cloud connectivity or firmware-over-the-air updates are implemented, preserving network isolation where required by IT security policy.

Applications

• Pharmaceutical manufacturing: Moisture verification of active pharmaceutical ingredients (APIs), tablet granulations, and lyophilized products prior to packaging.
• Food & beverage QA/QC: Routine testing of flour, sugar, dairy powders, coffee beans, and pet food for shelf-life prediction and regulatory compliance (e.g., FDA Food Code §3-202.11).
• Chemical industry: Monitoring hydration states of catalysts, desiccants, and metal oxides during synthesis and storage.
• Agricultural labs: Rapid field-deployable assessment of grain moisture content to inform drying schedules and storage conditions per ISO 6540 standards.
• Plastics & composites: Quantifying residual moisture in polymer resins before extrusion or molding to prevent void formation and hydrolytic degradation.

FAQ

Does the PMB analyzer comply with GLP or GMP requirements?
The instrument itself is not pre-certified for GLP/GMP use; however, its design—including external calibration capability, timestamped data logging, method recall, and secure storage—supports implementation within validated laboratory systems meeting 21 CFR Part 11 and EU Annex 11 expectations when accompanied by appropriate SOPs and change control documentation.
Can test methods be password-protected?
No. The PMB series does not feature user-level access control or method encryption. Method security must be enforced externally via physical access restriction and procedural controls.
Is halogen lamp replacement a user-serviceable task?
Yes. The halogen heating module is field-replaceable using standard tools and requires no recalibration after installation, as thermal output is independently verified during system initialization.
What is the recommended calibration frequency?
Adam recommends external calibration using certified weights at least daily for regulated environments, or prior to each analytical session in high-precision applications—consistent with ISO/IEC 17025 clause 6.5.2 for measurement traceability.
Does the device support automatic shutdown after test completion?
Yes. The auto-stop function activates upon reaching user-defined stability criteria (mass change ≤ ±0.005 g over 30 s), followed by audible alert and display freeze. Power-down is manual unless scheduled via external timer relay.