ALISN PNC 85 Precision Forced-Air Drying Oven
| Brand | ALISN |
|---|---|
| Origin | Shanghai, China |
| Model | PNC 85 |
| Instrument Type | Precision Drying Oven |
| Temperature Range | Ambient +5°C to 250°C |
| Temperature Uniformity (at 150°C) | ±1.5°C |
| Temperature Fluctuation | ±0.5°C |
| Setpoint Resolution | 0.1°C |
| Internal Volume | 85 L |
| Internal Dimensions (W×H×D) | 480×555×320 mm |
| External Dimensions (W×H×D) | 600×865×570 mm |
| Chamber Material | SUS304 Stainless Steel |
| Heating Method | Forced Convection with Adjustable Air Intake/Exhaust |
| Heating Power | 1600 W |
| Power Supply | AC 220 V, 50/60 Hz |
| Safety Features | Leakage Protection, Over-Temperature Cut-Off, Door-Open Alarm, Sensor Fault Detection |
| Standard Accessories | Two Removable Stainless Steel Shelves |
| Insulation | High-Density Mineral Wool Layer (≥80 mm Thickness) |
| Control System | PID Fuzzy Logic Controller with Dual Operating Modes (Constant Setpoint & Multi-Step Program) |
| Additional Functions | Power Failure Recovery, Timer-Based Operation, Fresh Air Inlet System (2 bottom ports), Exhaust Port (1 top port), Leveling Feet with Casters |
Overview
The ALISN PNC 85 Precision Forced-Air Drying Oven is an engineered solution for laboratories requiring stable, repeatable thermal processing across research, quality control, and production environments. Designed around the principle of forced convection heat transfer, it utilizes a high-efficiency axial fan and optimized internal airflow ducting to ensure uniform temperature distribution throughout the chamber—critical for applications demanding strict thermal consistency, such as moisture content determination (per ASTM D2298 and ISO 787-2), residual solvent removal, pre-conditioning of polymer samples, and thermal stability testing of pharmaceutical excipients. Its operating range from ambient +5°C to 250°C supports both low-temperature drying and high-temperature sterilization protocols, while the robust SUS304 stainless steel chamber resists oxidation, corrosion, and warping under prolonged exposure to elevated temperatures.
Key Features
- High-fidelity PID fuzzy logic temperature controller with 0.1°C setpoint resolution and dual operational modes: constant-setpoint and multi-segment programmable ramp-soak profiles.
- Forced-air circulation system featuring adjustable intake (two bottom-mounted ports) and exhaust (one top-mounted port) for controlled atmosphere exchange—enabling precise humidity management during drying or volatile removal.
- Thick-walled insulation using ≥80 mm mineral wool layer, minimizing thermal loss and improving energy efficiency without compromising external surface temperature safety (EN 61000-3-2 compliant).
- Rounded internal corners and tool-free removable shelves facilitate complete cleaning and reduce contamination risk—essential for GLP-compliant labs and ISO 17025-accredited testing facilities.
- Integrated leveling feet with heavy-duty casters support stable positioning on uneven floors and allow safe relocation without disassembly.
- Comprehensive safety architecture includes independent over-temperature cut-off, real-time door-open detection, leakage current protection, and sensor fault monitoring—all logged with timestamps for audit readiness.
Sample Compatibility & Compliance
The PNC 85 accommodates standard laboratory glassware (e.g., Petri dishes, weighing bottles, crucibles) and metal sample trays up to 450 mm × 450 mm in footprint. Its chamber geometry and airflow design meet requirements for uniform heating per ISO 15502:2016 (Laboratory ovens — Specification and test methods) and are routinely validated for use in pharmaceutical stability studies aligned with ICH Q1A(R2). The unit complies with electromagnetic compatibility standards (IEC 61326-1) and electrical safety requirements (IEC 61010-1), supporting integration into FDA 21 CFR Part 11–governed workflows when paired with ALISN’s optional data logging software (model DLS-200).
Software & Data Management
While the PNC 85 operates autonomously via its front-panel interface, optional connectivity enables PC-based supervision through ALISN’s DLS-200 Data Logging Software. This application provides real-time graphing, event-triggered alarms, and exportable CSV reports—including timestamped temperature deviations, power interruption logs, and user-access records. All data entries include electronic signatures and immutable audit trails, satisfying documentation requirements for GMP, GLP, and ISO/IEC 17025 accreditation. The software supports calibration certificate import and automatic generation of IQ/OQ validation templates.
Applications
- Drying of soil, food, textile, and ceramic samples prior to gravimetric analysis (ASTM D2234, ISO 11465).
- Pre-heating and post-curing of composite materials and adhesives in materials science labs.
- Moisture content validation for raw materials in pharmaceutical manufacturing (USP <921>).
- Thermal aging of electronic components per MIL-STD-883 Method 1008.
- Pre-sterilization conditioning of surgical instruments and packaging materials (ISO 11137-1).
- Accelerated stability testing of APIs and finished dosage forms per ICH guidelines.
FAQ
Does the PNC 85 support validation documentation for regulated environments?
Yes—the oven is supplied with a factory calibration certificate traceable to NIST standards, and optional IQ/OQ protocols are available upon request.
Can the airflow rate be adjusted manually?
No; airflow is fixed at optimal velocity for uniformity, but intake/exhaust port openings can be partially throttled using included dampers to modulate chamber atmosphere exchange.
Is the chamber volume verified per ISO 15502 Annex B?
Yes—internal volume is measured volumetrically during final QA and confirmed against nominal 85 L within ±1.5% tolerance.
What is the maximum load capacity per shelf?
Each SUS304 shelf is rated for 15 kg uniformly distributed load; total chamber loading should not exceed 30 kg to maintain thermal uniformity specifications.
How does the power failure recovery function operate?
Upon restoration of mains power, the controller resumes the previously active program segment from the exact time-of-interruption, preserving soak durations and ramp rates without manual re-entry.
