Tianhe ZPY-8 Intelligent Liquid Dispensing Workstation
| Brand | Tianhe |
|---|---|
| Origin | Tianjin, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | ZPY-8 |
| Quotation | Upon Request |
| Dispensing Precision | 0.1 mL |
| Dispensing Volume Range | 1–4000 mL |
| Throughput | 8-channel |
Overview
The Tianhe ZPY-8 Intelligent Liquid Dispensing Workstation is an automated, multi-channel liquid handling platform engineered for high-reproducibility reagent preparation in regulated laboratory environments. It operates on a positive-displacement piston-pump principle—distinct from air-displacement pipetting—to deliver precise volumetric delivery across a broad dynamic range (1 mL to 4000 mL per dispense cycle). Designed for routine and method-critical workflows in clinical diagnostics, environmental testing, pharmaceutical QC, and academic research labs, the ZPY-8 eliminates manual pipetting variability while enforcing operator safety through full enclosure and chemical-resistant fluidic architecture. Its core function is sequential or parallel dispensing of up to eight independent reagents into designated vessels according to user-defined protocols, supporting both fixed-ratio dilutions and time-staged multi-step formulations.
Key Features
- Eight independent dispensing channels with isolated fluoropolymer (PFA/PTFE) fluid paths—eliminating cross-contamination between reagents and enabling simultaneous handling of incompatible chemistries.
- High-accuracy positive-displacement piston pumps calibrated to ±0.1 mL absolute precision, with relative error ≤1% at 5 mL (per ISO 8655-3 verification principles).
- Hermetically sealed operation chamber with integrated fume extraction interface and auto-sealing bottle caps—minimizing volatile organic compound (VOC) exposure and ensuring compliance with OSHA 29 CFR 1910.1200 and CLSI GP26-A4 safety guidelines.
- Real-time system monitoring with automated alerts for low reagent level, empty waste reservoir, tubing occlusion, and end-of-life pump seal status—supporting GLP/GMP-aligned preventive maintenance scheduling.
- Onboard Android-based HMI with touchscreen interface, pinyin-initial search for protocol recall, and drag-and-drop workflow builder for rapid method deployment.
- Non-volatile memory storage for up to 50,000 preconfigured dispensing protocols—including volume, sequence, dwell time, mixing steps, and post-dispense rinse routines—with timestamped version control.
Sample Compatibility & Compliance
The ZPY-8 accommodates standard laboratory containers including 15–1000 mL glass or HDPE reagent bottles, 50 mL conical tubes, and custom-positioned receiving vessels (e.g., cuvettes, microplates, or reaction flasks). Its all-fluoropolymer wetted path (including PFA tubing, PTFE-coated pistons, and perfluoroelastomer seals) ensures compatibility with strong acids (e.g., concentrated HNO₃, HCl), bases (e.g., 50% NaOH), oxidizers (e.g., H₂O₂), and organic solvents (e.g., acetonitrile, DMSO). The system meets CE marking requirements under Directive 2014/30/EU (EMC) and 2014/35/EU (LVD), and supports audit-ready documentation for ISO/IEC 17025-accredited laboratories. Optional integration with LIMS via TCP/IP enables traceable electronic records compliant with FDA 21 CFR Part 11 Annex 11 requirements.
Software & Data Management
The embedded Android OS (v11.0+) hosts a dedicated dispensing application featuring role-based access control (administrator, technician, auditor), encrypted local database storage, and USB/ethernet export of CSV-formatted logs (dispense events, error codes, calibration history). All user actions—including protocol edits, parameter overrides, and emergency aborts—are time-stamped and digitally signed. Audit trail functionality records operator ID, timestamp, action type, and pre-/post-value states for every critical parameter change. Remote firmware updates are supported over HTTPS with SHA-256 signature validation. Exported data conforms to ASTM E1384-19 and ISO/IEC 17025:2017 clause 7.5.2 requirements for raw data integrity.
Applications
- Preparation of calibration standards and QC reference materials for ICP-MS, HPLC, and UV-Vis spectrophotometry.
- Automated dilution series generation for ELISA, PCR master mix assembly, and microbiological media formulation.
- Batch-wise reconstitution of lyophilized reagents in clinical pathology labs under CAP/CLIA workflow constraints.
- Environmental lab compliance with EPA Method 200.8 and ISO 17294-2—where trace-metal-free dispensing and documented blank correction are mandatory.
- Method transfer support between R&D and manufacturing sites via portable protocol files with embedded uncertainty budgets.
FAQ
What regulatory standards does the ZPY-8 support for data integrity?
It provides electronic record and signature capabilities aligned with FDA 21 CFR Part 11, EU Annex 11, and ISO/IEC 17025:2017 section 7.5.2.
Can the instrument be integrated into an existing LIMS or MES environment?
Yes—via configurable RESTful API or Modbus TCP interface; sample integration packages available for Thermo Fisher SampleManager, LabVantage, and STARLIMS.
Is calibration verification traceable to national standards?
Yes—factory calibration uses NIST-traceable Class A volumetric glassware and gravimetric verification per ISO 8655-3; users may perform intermediate checks using certified reference liquids.
What maintenance intervals are recommended for sustained accuracy?
Piston seals require replacement every 12 months or 10,000 cycles (whichever occurs first); tubing inspection is advised quarterly per the included PM checklist.
Does the system support gradient dispensing or variable flow-rate profiles?
No—it executes discrete volume transfers at fixed flow rates (5–80 mL/min); continuous flow modulation is not implemented.
