OHAUS Adventurer AX225DZH Analytical Balance

Overview

The OHAUS Adventurer AX225DZH Analytical Balance is a high-precision laboratory balance engineered for rigorous quantitative workflows in quality control, research laboratories, and regulated pharmaceutical environments. Designed around the fundamental principle of electromagnetic force compensation (EMFC), the AX225DZH delivers stable, drift-resistant mass measurements with dual readability modes—0.00001 g (10 µg) and 0.0001 g (100 µg)—enabling flexibility across applications requiring either ultra-fine resolution or enhanced dynamic range. Its robust architecture integrates a stainless steel weighing pan, precision-machined metal base, and modular draft shield system optimized for environmental stability. The balance meets essential metrological requirements defined in USP for minimum weight determination and supports routine verification per ASTM E898 and ISO/IEC 17025–aligned internal audit protocols.

Key Features

• Capacitive 4.3-inch WQVGA full-color touchscreen with intuitive gesture navigation and customizable home screen layouts
• Fully automatic internal calibration with motor-driven calibration mass actuation—no manual intervention required
• Dual-range capacity configuration: 102 g at 10 µg readability or 220 g at 100 µg readability, selected via software menu
• Integrated environmental monitoring: real-time temperature and humidity input for drift compensation and method documentation
• Comprehensive user access control: password-protected menu locking, calibration lock, and configurable operator permissions
• Dynamic weighing support: includes piece counting, percentage weighing, checkweighing, formulation, density determination, accumulation, and hold-to-stabilize functions
• Enhanced ergonomics: illuminated bubble level with auto-backlight activation, four adjustable leveling feet, front-facing status LED indicators, and acoustic feedback options
• Modular connectivity: standard RS232 serial port plus dual USB ports—one configured as host (for printers, barcode scanners) and one as device (for PC data export)

Sample Compatibility & Compliance

The AX225DZH accommodates a broad spectrum of sample types—from volatile organic compounds and hygroscopic powders to dense metallic alloys and micro-volume liquid dispersions—thanks to its low-drift EMFC sensor and optional draft shield assembly. While not certified for legal-for-trade use, the balance conforms to design and manufacturing standards aligned with ISO 9001 and supports GLP/GMP documentation requirements through traceable calibration logs, user activity timestamps, and audit-ready printouts. It satisfies USP criteria for minimum weight (20 mg at 0.1% tolerance) and demonstrates linearity error within ±0.1 mg across its full operating range. The absence of built-in electrostatic dissipation does not preclude external grounding solutions compatible with IEC 61340–5–1 ESD-safe lab practices.

Software & Data Management

Data integrity is reinforced via timestamped, non-editable measurement records exported directly to USB storage or transmitted over RS232 to LIMS or ELN systems. The balance supports CSV and TXT output formats with configurable field delimiters and header inclusion. Optional OHAUS Logger Pro software enables automated batch logging, statistical process control (SPC) charting, and compliance reporting aligned with FDA 21 CFR Part 11 requirements—including electronic signatures, audit trails, and user-defined retention policies. All firmware updates are delivered via signed USB packages with version-controlled checksum validation.

Applications

• Pharmaceutical formulation and active ingredient quantification per USP
• Reference standard preparation and dilution series verification in analytical chemistry labs
• Material science density profiling using Archimedean displacement methods
• Quality assurance of catalyst loading in fine chemical synthesis
• Micro-batch compounding in contract manufacturing organizations (CMOs)
• Academic research requiring sub-10 µg repeatability under controlled ambient conditions
• Calibration laboratory secondary standard verification against NIST-traceable references

FAQ

Is the AX225DZH compliant with FDA 21 CFR Part 11?
Yes—when used with OHAUS Logger Pro software and appropriate administrative controls (e.g., role-based access, electronic signatures, and audit trail review), the system meets technical and procedural requirements for electronic records and signatures.
Can the balance perform density determination without external accessories?
Yes—the built-in density application supports both solid and liquid density calculations using user-entered reference values and optional immersion kits (sold separately).
What is the recommended recalibration interval?
OHAUS recommends daily internal calibration verification and formal external calibration every 24 hours—or more frequently if environmental fluctuations exceed ±2 °C or ±10% RH.
Does the balance support network printing via Ethernet or Wi-Fi?
No—network printing is not natively supported; however, USB-host-connected label printers (e.g., Zebra ZD420) and serial printers are fully compatible.
Is the touchscreen resistant to common lab solvents?
The display surface is chemically hardened but not solvent-proof; cleaning must be performed with isopropyl alcohol–dampened lint-free cloths only—never acetone or chlorinated solvents.