HOGON ALT-1-C Online Moisture Analyzer

Overview

The HOGON ALT-1-C Online Moisture Analyzer is an industrial-grade, fully automated process analyzer engineered for continuous, real-time moisture quantification in liquid-phase production streams. It operates on the electrochemical principle of Coulometric Karl Fischer titration—compliant with internationally recognized standards including GB/T 7600, ASTM D6304, and ISO 760—ensuring trace-level accuracy and metrological traceability. Unlike offline lab-based titrators, the ALT-1-C integrates directly into active process lines, enabling unattended 24/7 monitoring of water content across a dynamic range from 0.0001% to 100% (w/w), or down to sub-ppm absolute mass detection (≥0.01 µg H₂O per measurement). Its primary function is closed-loop process control: analytical output triggers automated reagent dosing, solvent replenishment, or alarm events via programmable logic, thereby maintaining critical moisture specifications without manual intervention.

Key Features

• Triple-Mode Automated Sampling: Configurable between overflow定量 sampling, titration loop circulation, and high-precision syringe-driven metering (standard 20 mL; optional 10 mL or 50 mL volumes), ensuring optimal sample representativeness across varying viscosity, volatility, and moisture concentration profiles.
• Coulometric Titration Core: Employs dual-platinum electrode coulometric generation of iodine, eliminating need for volumetric reagent standardization and delivering inherent stability over extended operation cycles.
• Dynamic Cycle Flexibility: Analysis interval programmable from 15 minutes to 999 minutes; typical single-cycle duration is 3–10 minutes, balancing temporal resolution with reagent economy and electrode longevity.
• Integrated Waste Management: Onboard waste reservoir with scheduled discharge protocol prevents carryover contamination and maintains system integrity during multi-shift operation.
• Explosion-Proof Enclosure: Certified to IECEx / ATEX Class IIC T4 (Gas Group IIC, Temperature Class T4), suitable for Zone 1 and Zone 2 hazardous locations common in chemical, electroplating, and battery electrolyte manufacturing facilities.
• Environmental Robustness: Operational temperature range: 5–40 °C; relative humidity ≤80% non-condensing at 10 °C; IP65-rated front panel with industrial-grade capacitive touchscreen interface.

Sample Compatibility & Compliance

The ALT-1-C is validated for direct analysis of organic solvents (e.g., acetone, THF, DMF, NMP), aqueous emulsions, plating bath solutions, and lithium-ion battery electrolytes (LiPF₆ in carbonate blends). It excludes samples containing strong oxidizers, aldehydes, ketones with α-hydrogens, or highly reactive species that interfere with iodine stoichiometry. Regulatory alignment includes full support for GMP/GLP data integrity requirements: audit trail logging (user actions, method changes, calibration events), electronic signature capability, and role-based access control (three-tier permission structure: operator, supervisor, administrator). Data export formats include CSV and XML, compatible with LIMS and MES integration.

Software & Data Management

Embedded firmware supports native Modbus TCP and RS-485 (RTU/ASCII) protocols for seamless bidirectional communication with DCS, PLC, or SCADA systems. All measurements are timestamped with millisecond precision and stored locally on redundant SD card + internal flash memory (≥12 months of continuous 1-min data at default logging rate). Remote diagnostics and firmware updates are enabled via secure SSH or HTTPS interfaces. Optional OPC UA server module available for enterprise-wide IIoT deployment under ISA-95 architecture.

Applications

• Chemical Synthesis: Real-time endpoint detection in esterification, amidation, or polymerization reactions where residual water drives side-product formation.
• Surface Treatment: Continuous monitoring of rinse bath and passivation solution water activity to prevent hydrogen embrittlement, blistering, or adhesion failure in electroplated coatings.
• Lithium Battery Manufacturing: In-line verification of electrolyte moisture content below 20 ppm—critical for SEI layer formation and long-term cell cycle stability.
• Pharmaceutical Solvent Recovery: Closed-loop feedback control of distillation column overheads to meet ICH Q5C residual solvent limits.
• Fuel & Lubricant Blending: Detection of free water ingress in hydrocarbon streams prior to storage or distribution.

FAQ

What moisture detection principle does the ALT-1-C use?
It utilizes coulometric Karl Fischer titration, generating iodine electrochemically at the anode and measuring total charge required to reach the endpoint.
Can the ALT-1-C analyze viscous or particulate-laden samples?
Yes—when configured with overflow sampling and integrated inline filtration (optional), it handles fluids up to 500 cP; particulates <50 µm are retained by the built-in 10 µm pre-filter.
Is calibration traceable to national standards?
Yes—factory calibration uses NIST-traceable water standards (e.g., Hydranal® CertiPUR®); user-performed verification follows ISO 8655-6 gravimetric validation protocols.
How is data security ensured for regulated environments?
Full compliance with FDA 21 CFR Part 11: electronic records include immutable audit trails, digital signatures, and automatic backup to external NAS devices.
What maintenance intervals are recommended?
Electrode cleaning every 2 weeks; catholyte replacement every 6 months; annual full system verification including flow path integrity and detector linearity testing.