HACH Anatel ASX-7200 TOC Autosampler

Overview

The HACH Anatel ASX-7200 TOC Autosampler is an engineered interface module designed exclusively for seamless integration with the Anatel PAT7000 Total Organic Carbon (TOC) Analyzer. It operates on a precision Cartesian coordinate sampling principle—utilizing synchronized X-Y-Z axis motion control—to deliver repeatable, contamination-minimized liquid handling for aqueous samples in regulated water quality laboratories. Unlike generic autosamplers, the ASX-7200 is purpose-built to meet the stringent requirements of pharmaceutical water monitoring (e.g., Purified Water, Water for Injection), clean steam condensate analysis, and high-purity process water validation per USP , EP 2.2.44, and JP 2.59. Its architecture eliminates manual intervention across full analytical sequences—including vial indexing, probe immersion depth control, aspiration timing, and post-sampling rinse cycles—enabling unattended 24/7 operation while maintaining traceability and audit readiness.

Key Features

• Metal-free fluidic path constructed entirely from PTFE and PEEK tubing and fittings—eliminating catalytic metal leaching and minimizing adsorption of low-concentration organic analytes.
• Hermetically sealed electronics housing with IPC-class conformal coating on all printed circuit boards and corrosion-resistant plating on critical drive components (e.g., lead screws), ensuring long-term reliability in humid or chemically aggressive laboratory environments.
• High-torque, microstepping X-Y-Z positioning system delivering sub-millimeter repeatability (< ±0.2 mm) in probe tip placement—critical for consistent sample aspiration volume and avoidance of vial rim contact or meniscus disturbance.
• Intelligent auto-zero calibration routine: The probe arm executes a dynamic re-homing sequence prior to each sampling cycle, compensating for thermal drift or mechanical hysteresis without user input.
• Compact footprint (56.9 cm wide × 53.7 cm deep × 45.7 cm tall) enables flexible deployment—front-mount, top-mount, or side-mount adjacent to the PAT7000 analyzer—optimizing bench space in GMP-compliant cleanrooms and QC labs.
• Plug-and-play commissioning: Factory-configured firmware, pre-aligned mechanical subsystems, and integrated RS232 handshake protocol allow operational readiness within 30 minutes of unpacking.

Sample Compatibility & Compliance

The ASX-7200 is validated for use with standard 40 mL HACH-certified sealed vials (PN 2802100), supporting both single-use and reusable configurations under controlled environmental conditions. All wetted materials comply with USP Class VI biocompatibility standards and FDA 21 CFR Part 11 requirements for electronic records and signatures when operated in conjunction with PAT7000’s compliant software suite. The system supports IQ/OQ documentation packages aligned with ASTM D5903-22 (Standard Practice for Validation of TOC Analyzers) and ISO 9001:2015 quality management systems. Its inert fluid path ensures compatibility with ultrapure water matrices down to <1 ppb TOC, as well as oxidant-containing samples (e.g., ozone-treated water, hydrogen peroxide spiking studies) without degradation or carryover.

Software & Data Management

Communication occurs exclusively via ASCII-based RS232 serial protocol, enabling deterministic command-response timing and deterministic error logging. The ASX-7200 does not host standalone software; instead, it functions as a peripheral node under the PAT7000’s embedded control firmware. All sampling events—including vial position ID, timestamp, probe actuation status, and fault codes—are time-stamped and logged synchronously with TOC measurement data. Audit trails are retained in non-volatile memory and exportable in CSV or XML format for integration into LIMS or ELN platforms. Full electronic signature support, event-driven alarm notifications (e.g., vial depletion, probe obstruction), and configurable sampling sequence logic (e.g., skip failed positions, repeat on error) are managed through the PAT7000’s validated user interface.

Applications

• Continuous monitoring of pharmaceutical water systems (PW, WFI, SW) per FDA Guidance for Industry: Process Validation – General Principles and Practices.
• Automated batch release testing of purified water in biomanufacturing facilities subject to Annex 1 (EU GMP) and ICH Q5C stability protocols.
• Long-term trend analysis of TOC in semiconductor ultrapure water loops where baseline drift must be distinguished from true process excursions.
• Multi-point sampling from distribution manifolds, storage tanks, and point-of-use locations in centralized water systems—reducing operator exposure and procedural variability.
• Regulatory submission support: Data generated meets evidentiary thresholds for FDA pre-approval inspections and MHRA audit requests due to built-in traceability and electronic record integrity.

FAQ

Is the ASX-7200 compatible with TOC analyzers other than the PAT7000?
No. The ASX-7200 is mechanically and electrically engineered as a dedicated peripheral for the Anatel PAT7000 platform only. Its command set, physical mounting interface, and timing synchronization are not interoperable with third-party analyzers.
Does the ASX-7200 require routine calibration?
It does not require user-performed calibration. Positional accuracy is maintained through factory-trimmed encoder feedback and periodic verification using the PAT7000’s diagnostic mode. Annual preventive maintenance includes inspection of drive train lubrication and seal integrity.
Can the ASX-7200 handle viscous or particulate-laden samples?
No. It is designed exclusively for low-viscosity, particle-free aqueous solutions meeting USP filtration specifications (≤ 0.45 µm pre-filtered). Use with suspended solids or >1 cP viscosity risks clogging and invalidates TOC measurement validity.
What happens if a vial is missing or misaligned in the tray?
The system performs optical presence detection at each position before probe descent. A missing vial triggers a Level 2 alarm, logs the event, skips the position, and continues the sequence—no manual reset required.
Is the two-year warranty extendable?
Yes. Extended service agreements (ESA) covering parts, labor, and annual performance verification are available directly through HACH Anatel Authorized Service Providers under contract terms aligned with ISO/IEC 17025 calibration intervals.