HM-STY2 Freezing Point Osmometer with Audit Trail

Product Introduction

The HM-STY2 is the audit-trail-enabled variant of the HM-STY freezing point osmometer series, purpose-built for laboratories operating under stringent data governance requirements such as FDA 21 CFR Part 11, EU GMP Annex 11, and WHO data integrity guidelines. In regulated pharmaceutical environments, every measurement must be traceable — who performed it, when, with what calibration, and whether any data was modified after the fact. The HM-STY2 addresses this need by automatically logging all instrument operations, data generation events, modifications, and deletions into secure, tamper-proof audit records retained for 360 days.

Beyond its audit capabilities, the HM-STY2 delivers the same proven analytical performance as the HM-STY1 model. It measures osmolarity from 0 to 3,000 mOsmol/kg using Raoult's freezing point depression principle, with a semiconductor cooling system and high-precision thermistor probe achieving 0.005 mOsmol/kg resolution. The 70-second precision-mode test cycle and 50-samples-per-hour throughput meet the demands of busy QC laboratories handling large batches of injectable drugs, ophthalmic solutions, and dialysis fluids.

The Android 10 operating system provides five-level user permission management alongside the audit trail, creating a layered security architecture. Each user action — login, test execution, calibration, data export, setting changes — is automatically timestamped and attributed to the responsible operator. This dual approach of access control plus comprehensive logging provides both proactive security and retrospective accountability, making the HM-STY2 the instrument of choice for quality assurance managers, regulatory affairs teams, and auditors in the pharmaceutical supply chain.

Applications

• GMP-regulated drug manufacturing: Batch release osmolarity testing with full audit documentation for regulatory inspections
• Pharmaceutical R&D laboratories: Formulation development studies requiring traceable osmolarity data for IND/NDA submissions
• Contract testing organizations (CROs/CMOs): Client-facing osmolarity analysis with auditable data chains to satisfy sponsor quality agreements
• Biopharmaceutical production: Cell culture media and bioreactor feed osmolarity monitoring with logged operator accountability
• Hospital pharmacy compounding: Sterile compounding osmolarity verification for patient-specific IV admixtures and TPN solutions
• Regulatory compliance testing: Stability studies and method validation protocols requiring tamper-proof measurement records

Functional Performance

1. Comprehensive audit trail: Automatic recording of all operations, data changes, and user activities with 360-day tamper-proof logs ensuring data integrity and compliance
2. Five-level permission management: Role-based access control prevents unauthorized calibration or data modification; all actions attributed to specific users
3. Android 10 intelligent platform: Modern touchscreen interface with multi-language support reduces training overhead in multinational labs
4. High-precision thermistor detection: Accurately captures minute temperature changes during crystallization for reliable osmolarity values across the full range
5. 70-second rapid test cycle: Precision mode delivers results in ~70 seconds; fast mode available for screening applications
6. Semiconductor refrigeration: Compact cooling system with fast temperature ramp-down and minimal maintenance requirements
7. Barcode, QR code, and NFC identification: Direct sample ID scanning eliminates manual transcription errors and supports chain-of-custody documentation
8. Automated data management: Configurable auto-upload, auto-print, and auto-save functions reduce manual steps in documentation workflows
9. Onboard thermal printer: Immediate hard-copy output for batch records; USB, WiFi, LAN, and optional 4G for electronic data export
10. Self-service calibration: Multi-point on-site calibration by the user eliminates instrument downtime and external metrology costs
11. Expandable storage: Unlimited data records with 200,000 curve capacity; customizable for larger datasets
12. Easy maintenance: Wipe-clean probe design minimizes cross-contamination between samples

Main Parameters

Technical Parameters

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