NEPA GENE PF-NP-200 Programmable Controlled-Rate Freezer
| Brand | NEPA GENE |
|---|---|
| Origin | Japan |
| Model | PF-NP-200 |
| Temperature Range | −80 °C to Ambient |
| Cooling Rate | −0.1 to −3.0 °C/min |
| Cooling Technology | Stirling Cycle Refrigeration |
| Display | LCD Touchscreen Interface |
| Data Export | CSV Format |
| Power Supply | AC 100 V, 50/60 Hz |
| Power Consumption | 200 W |
| Dimensions (L×W×H) | 340 × 366 × 466 mm |
| Weight | 18 kg |
| Sample Capacity | 55 × 2 mL Cryovials or 1 × 25 mL Cryobag (optional modules available) |
| Restart Function | Auto-resume after power failure |
| Compliance | Designed for GLP-compliant cell banking and ISO 13485-aligned bioprocessing environments |
Overview
The NEPA GENE PF-NP-200 Programmable Controlled-Rate Freezer is an air-cooled, Stirling-cycle-based cryopreservation system engineered for precise, reproducible, and contamination-free slow freezing of sensitive biological samples. Unlike liquid nitrogen–dependent or alcohol bath–based systems, the PF-NP-200 eliminates reliance on cryogenic fluids or volatile coolants—thereby removing risks of cross-contamination, thermal shock variability, and operator exposure. Its core function is to execute programmable cooling profiles within a defined range of −80 °C to ambient temperature, with fine-grained control over ramp rates from −0.1 to −3.0 °C/min. This level of precision is critical for preserving membrane integrity, mitochondrial function, and post-thaw viability in primary cells, stem cells, gametes, embryos, and tissue explants. The instrument operates as a standalone benchtop unit with integrated PID temperature regulation, real-time thermocouple feedback, and closed-loop thermal management—ensuring high inter-run reproducibility essential for clinical-grade biobanking and regulatory submissions.
Key Features
- Stirling-cycle refrigeration system: Eliminates need for liquid nitrogen, dry ice, ethanol baths, or external coolant lines—reducing biosafety hazards and operational complexity.
- Independent touchscreen interface: 7-inch LCD panel supports intuitive profile creation, real-time temperature graphing, and on-device data review without PC dependency.
- Automated data logging and export: All temperature readings, setpoints, and event timestamps are recorded internally and exportable as time-stamped CSV files for audit-ready documentation.
- Power-failure resilience: Built-in non-volatile memory retains active protocols and resumes frozen state upon electrical restoration—no manual reinitialization required.
- Modular sample handling: Standard configuration accommodates 55 × 2 mL cryovials; optional adapters support 25 mL cryobags or custom vessel geometries for scalable bioprocessing workflows.
- Thermal uniformity assurance: Chamber design incorporates forced-air convection and calibrated thermistor arrays to maintain ±0.5 °C spatial consistency across the sample zone during cooling cycles.
Sample Compatibility & Compliance
The PF-NP-200 is validated for use with human and veterinary biological specimens including peripheral blood mononuclear cells (PBMCs), induced pluripotent stem cells (iPSCs), mesenchymal stromal cells (MSCs), oocytes, spermatozoa, blastocysts, and excised tissue fragments. It meets functional requirements outlined in ISO 20387:2018 (Biobanking), ASTM F1986-22 (Standard Practice for Controlled-Rate Freezing of Cells), and supports alignment with FDA 21 CFR Part 11 when integrated into validated laboratory information management systems (LIMS). Its coolant-free architecture facilitates cleanroom-compatible deployment and simplifies validation of environmental monitoring parameters under GMP/GLP frameworks.
Software & Data Management
No proprietary software installation is required—the PF-NP-200 functions autonomously via its embedded firmware. All user-defined programs—including multi-step cooling ramps, hold durations, and final storage temperatures—are stored in secure internal memory with write-protection options. Temperature logs include microsecond-resolution timestamps synchronized to internal RTC (real-time clock), enabling traceability down to individual freeze cycles. Exported CSV files contain columnar data for time, actual temperature, setpoint, deviation, and system status flags—facilitating statistical process control (SPC) analysis and inclusion in electronic batch records (EBRs).
Applications
- Cell and gene therapy manufacturing: Optimized freezing of CAR-T cells, NK cells, and hematopoietic stem cells where >90% post-thaw viability and minimal apoptosis are mandated by regulatory guidance (e.g., EMA CHMP Guideline on Human Cell-Based Medicinal Products).
- Veterinary and agricultural biobanking: Preservation of bovine, porcine, avian, and piscine gametes and embryos under field-deployable conditions without cryogen logistics.
- Academic and translational research: Standardized cryopreservation across multicenter studies requiring inter-laboratory protocol harmonization and raw data portability.
- Regenerative medicine repositories: Long-term archival of iPSC lines with documented thermal history for lineage tracing and genomic stability assessment.
FAQ
Does the PF-NP-200 require external cooling water or compressed air?
No—it operates as a fully self-contained air-cooled system using a hermetically sealed Stirling cooler.
Can cooling profiles be edited during an active run?
Yes—users may pause, modify ramp rates or hold points, and resume execution without resetting the entire program.
Is remote monitoring supported?
Not natively; however, USB-exported CSV logs can be ingested into third-party SCADA or LIMS platforms via automated ingestion scripts.
What is the calibration interval recommendation?
Annual verification against NIST-traceable reference thermistors is advised per ISO/IEC 17025 guidelines for accredited laboratories.
Are service manuals and spare parts available internationally?
Yes—NEPA GENE provides global technical support, certified field service engineers, and authorized distributor networks for maintenance and component replacement.
