GZX-9146MBE Microcomputer-Controlled Forced-Air Drying Oven

Overview

The GZX-9146MBE Microcomputer-Controlled Forced-Air Drying Oven is a precision-engineered thermal processing instrument designed for routine and regulated laboratory operations including moisture removal, sample conditioning, sterilization of glassware and instruments, paraffin embedding support, and thermal stabilization of reagents and standards. Operating on the principle of convective heat transfer via forced air circulation, the unit maintains stable thermal environments across its 151.25 L working chamber (550 × 500 × 550 mm). Its microprocessor-based PID temperature controller ensures minimal thermal overshoot and rapid recovery following door openings or load changes—critical for applications requiring reproducible drying kinetics and ISO/IEC 17025-compliant method validation. The oven meets fundamental design requirements outlined in GB/T 5170.2–2017 for environmental test equipment and supports laboratories implementing Good Laboratory Practice (GLP) by delivering documented thermal consistency under defined operating conditions.

Key Features

• Microprocessor-controlled PID temperature regulation with real-time digital display (dual high-brightness LED screens) and intuitive touch-sensitive keypad interface
• Robust mechanical architecture: cold-rolled steel outer casing with electrostatic epoxy-polyester powder coating; seamless mirror-finish 304 stainless steel interior chamber featuring radiused corners for efficient cleaning and residue-free maintenance
• Optimized airflow system incorporating an imported low-noise, high-efficiency motor and aerodynamically profiled impeller—ensuring uniform air velocity distribution and minimizing thermal gradients (±1 °C uniformity across full load)
• Intelligent power management with auto-recovery function: retains set parameters—including temperature setpoint, timer value, and operational mode—following unexpected power interruption or system reset
• Large-view observation window with nano-composite magnetic door seal and high-density mineral fiber insulation, achieving low surface temperature rise and enhanced energy efficiency
• Three-tier adjustable shelving system with corrosion-resistant stainless steel trays; tray height and quantity configurable per user-defined workflow requirements

Sample Compatibility & Compliance

The GZX-9146MBE accommodates a broad spectrum of sample formats—including Petri dishes, weighing boats, crucibles, glass vials, metal sample holders, and polymer molds—without compromising thermal homogeneity. Its maximum operating temperature of 300 °C enables applications such as ash content determination (per ASTM D3174), residual solvent evaporation (aligned with ICH Q5C guidelines), and pre-sterilization conditioning of microbiological media components. The unit’s construction materials and thermal performance characteristics conform to national standard GB/T 5170.2–2017 for temperature test equipment verification. While not certified for medical device sterilization (e.g., EN 285 or ISO 17665), it supports non-critical thermal decontamination tasks in QC/QA labs operating under ISO 9001 or ISO/IEC 17025 quality systems.

Software & Data Management

This model operates without proprietary software or PC connectivity; all configuration and monitoring occur via the integrated microcontroller interface. However, its deterministic behavior—combined with built-in timer logging, parameter retention memory, and stable thermal output—facilitates manual audit trail generation required under GLP and basic GMP frameworks. Users may record operational logs (start time, set temperature, duration, observed chamber temperature at intervals) using standardized lab notebooks or LIMS-integrated forms. For laboratories requiring electronic records compliant with FDA 21 CFR Part 11, external data loggers with NIST-traceable calibration (e.g., calibrated thermocouple arrays with timestamped CSV export) are recommended for independent verification and long-term trend analysis.

Applications

• Moisture content analysis in pharmaceutical excipients, food powders, and ceramic precursors (per USP <921> and AOAC 950.46)
• Drying of filter papers, gravimetric precipitates, and analytical standards prior to weighing
• Conditioning of humidity-sensitive reference materials and calibration standards
• Pre-heating of glassware and metal tools in microbiology and histology labs
• Curing of thin-film coatings and polymer substrates during materials R&D
• Thermal stabilization of hygroscopic reagents before volumetric preparation

FAQ

Does this oven support programmable ramp-soak profiles?
No—the GZX-9146MBE implements single-setpoint temperature control with fixed-rate heating and a manually initiated timer. It does not offer multi-segment programming.
Is the interior chamber resistant to acidic vapors?
The 304 stainless steel interior provides moderate resistance to weak organic acids and neutral salts; prolonged exposure to concentrated HCl, HF, or oxidizing agents is not recommended.
Can the unit be validated for IQ/OQ/PQ protocols?
Yes—its stable thermal performance, documented specifications, and repeatable response make it suitable for installation qualification (IQ), operational qualification (OQ), and performance qualification (PQ) when paired with third-party calibrated sensors and standardized test loads.
What safety certifications does it carry?
It complies with GB 4793.1–2019 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) and includes over-temperature cut-off protection, grounded chassis design, and thermal fuse redundancy.
Is remote monitoring possible?
Not natively—no Ethernet, RS-232, or USB interfaces are provided. Integration with building management systems or SCADA platforms requires external analog/digital signal converters and dedicated data acquisition hardware.