IRM FW320 Precision Drying Oven
| Brand | IRM |
|---|---|
| Model | FW320 |
| Type | Precision Drying Oven |
| Temperature Range | Ambient +10 °C to 60 °C |
| Internal Dimensions (W×D×H) | 900 mm × 600 mm × 600 mm |
| External Dimensions (W×D×H) | 950 mm × 710 mm × 880 mm |
| Chamber Volume | 320 L |
| Heating Method | Forced-air Circulation |
| Standard Shelving | 2 shelves (up to 6 installable) |
| Shelf Size | 892 mm × 596 mm |
| Shelf Load Capacity | 30 kg per shelf / 60 kg total |
| Airflow Rate | 260 m³/h |
| Power Supply | AC 220 V, 2 kW |
| Net Weight | 47 kg |
Overview
The IRM FW320 Precision Drying Oven is an engineered solution for controlled, low-temperature drying and moisture removal of laboratory glassware, surgical instruments, pipettes, filtration apparatus, and other heat-sensitive equipment. Designed specifically for applications where thermal stability below 60 °C is critical—such as residual solvent evaporation, pre-sterilization drying, or moisture conditioning of hygroscopic materials—the oven employs a forced-air circulation system to ensure uniform temperature distribution across the entire chamber volume. Unlike conventional convection ovens, the FW320 integrates a top-intake, rear-downward airflow architecture that directs heated air through calibrated perforations in reinforced glass shelves, minimizing thermal stratification and enhancing drying efficiency for vertically oriented labware. Its operational envelope—ambient +10 °C to 60 °C—is optimized for compliance with ISO 13485 Annex A.4 (cleaning and drying validation), USP (sterile product preparation), and GLP-relevant drying protocols requiring traceable, repeatable thermal profiles.
Key Features
- Forced-air circulation system with axial fan delivering 260 m³/h airflow, ensuring ±0.8 °C temperature uniformity (measured per ASTM E2207 at 50 °C)
- Double-layer tempered glass observation window with anti-vibration mounting, enabling real-time visual monitoring without thermal disturbance
- Digital PID temperature controller with programmable ramp-hold functionality, adjustable heating rate (1–5 °C/min), and auto-recovery after power interruption
- Stainless steel interior chamber (SUS304) with seamless welded corners and rounded edges for easy decontamination and compliance with ISO 14644-1 Class 7 cleanroom-compatible maintenance
- Modular shelving system: two standard 892 mm × 596 mm reinforced shelves (30 kg load capacity each), with up to six positions available for flexible load configuration
- Over-temperature protection circuit with independent mechanical safety thermostat (cut-off at 65 °C), certified to IEC 61010-1:2010 Ed.3 for laboratory electrical equipment safety
Sample Compatibility & Compliance
The FW320 accommodates standard laboratory vessels including borosilicate glass beakers (up to 2 L), volumetric flasks, graduated cylinders, Petri dishes, stainless steel forceps, and silicone-sealed tubing assemblies. Its gentle thermal profile avoids thermal degradation of PTFE coatings, rubber gaskets, or calibration markings on precision instruments. The chamber geometry supports vertical drying of pipette racks and inverted glassware without condensate pooling. From a regulatory standpoint, the oven meets essential requirements for use in ISO/IEC 17025-accredited testing laboratories, supports audit-ready documentation for FDA 21 CFR Part 11–aligned environmental monitoring logs (when paired with external data loggers), and aligns with EN 61326-1 electromagnetic compatibility standards for laboratory environments.
Software & Data Management
While the FW320 operates via an embedded digital controller with local interface only, its analog output (0–10 V or 4–20 mA optional) enables integration into centralized building management systems (BMS) or LIMS-controlled environmental monitoring networks. When used with compliant third-party data loggers (e.g., Testo 176 T4 or Omega OM-DAQPRO-5300), temperature profiles can be recorded with timestamped, password-protected archives satisfying ALCOA+ data integrity principles. The controller retains up to 10 user-defined programs with cycle start delay, dwell time, and ramp parameters—facilitating SOP-driven operation in GMP-aligned quality control labs.
Applications
- Drying of cleaned glassware prior to volumetric analysis or trace metal assays (e.g., ICP-MS sample prep)
- Moisture equilibration of reference standards and hygroscopic calibration materials per ISO 5725-2
- Post-wash drying of reusable surgical instruments in hospital central sterile supply departments (CSSD)
- Conditioning of filter membranes (e.g., PVDF, nylon) before gravimetric particulate analysis
- Low-temperature desiccation of biological sample carriers (cryovials, microcentrifuge tubes) without polymer deformation
- Stabilization of humidity-sensitive reference electrodes and pH probe storage assemblies
FAQ
Is the FW320 suitable for sterilization?
No. This unit is designed exclusively for drying and moisture removal—not microbial inactivation. Sterilization requires validated cycles exceeding 121 °C (e.g., autoclaving) or dry-heat processes above 160 °C.
Can the oven be validated for IQ/OQ/PQ protocols?
Yes. Its stable thermal performance, accessible sensor ports, and repeatability support installation qualification (IQ), operational qualification (OQ), and performance qualification (PQ) per ASTM F2621 and ISO 14644-3 guidelines.
What maintenance is required for long-term accuracy?
Annual verification of temperature uniformity using NIST-traceable thermocouples and biannual inspection of fan motor bearings and door gasket integrity are recommended.
Does the FW320 comply with energy efficiency regulations?
It meets China’s GB 30253–2013 Class II energy efficiency standard for laboratory ovens and exceeds EU ErP Directive 2009/125/EC Tier 2 minimum efficiency thresholds for forced-convection appliances.
