DRETOP TLG Series Vertical Forced-Air Drying Oven

Overview

The DRETOP TLG Series Vertical Forced-Air Drying Oven is an engineered solution for precise, repeatable thermal processing in research laboratories, quality control environments, and industrial R&D settings. Designed around the principle of forced convection heating, the TLG series utilizes a horizontally oriented rear-mounted air outlet and an optimized internal airflow path to ensure uniform temperature distribution across the entire working chamber. This architecture enables consistent drying, curing, sterilization, and moisture removal across diverse sample types—without reliance on gravitational convection alone. The oven operates within a validated temperature range of RT+10°C to 300°C, with a typical fluctuation of ±0.5°C and uniformity of ±2.5°C (measured at 100°C under no-load conditions per ISO 17025-aligned verification protocols). Its vertical footprint minimizes benchtop space usage while supporting scalable capacity—from compact 30 L units suitable for electronics component testing to large-volume 1040 L configurations used in polymer aging and automotive material qualification.

Key Features

• Microprocessor-based P.I.D. temperature controller with LCD interface, offering real-time three-color display of setpoint, actual temperature, and elapsed time
• Self-diagnostic system with fault-code readout for rapid troubleshooting and reduced instrument downtime
• Dual-stage rotary locking mechanism with high-temperature silicone rubber gasket (rated to 350°C), ensuring long-term seal integrity and energy efficiency
• Double-layer tempered glass observation window with wide-angle visibility and minimal thermal distortion
• Adjustable, slide-out stainless steel trays (AISI 304) with tool-free height repositioning and full accessibility for cleaning or replacement
• Horizontal rear air exhaust port compatible with standard 50–75 mm ducting, enabling connection to fume hoods or external ventilation systems for volatile or odoriferous samples
• Power-loss recovery function with non-volatile memory retention—automatically resumes prior setpoints and timer state after interruption
• Independent over-temperature cut-off circuit with audible/visual alarm, compliant with IEC 61010-1 safety requirements for laboratory equipment

Sample Compatibility & Compliance

The TLG series accommodates heterogeneous sample loads—including PCB assemblies, polymer films, pharmaceutical excipients, metal oxide powders, and composite substrates—without compromising thermal homogeneity. Its stainless steel interior and corrosion-resistant construction meet ASTM E145-22 criteria for gravity and forced-air ovens used in materials conditioning. While not certified for Class I Div 1 hazardous locations, the unit conforms to GLP-relevant operational documentation standards when paired with optional data logging accessories. Optional RS485 communication supports integration into centralized lab monitoring systems aligned with FDA 21 CFR Part 11 requirements for electronic records and signatures, provided audit trails are enabled via third-party software.

Software & Data Management

Standard configuration includes a built-in timer with programmable duration up to 9999 minutes. Optional upgrades expand functionality significantly: a USB data export interface allows direct transfer of temperature logs to removable media; an RS485 port enables Modbus RTU communication with SCADA or LIMS platforms; and a color touchscreen controller supports multi-segment ramp-soak profiles (up to 30 segments), ideal for accelerated aging studies per ISO 4892-2. All digital interfaces support timestamped event logging—including door open/close, alarm triggers, and setpoint changes—facilitating traceability during internal audits or regulatory inspections.

Applications

• Moisture content determination in food, pharmaceutical, and agricultural products per AOAC 950.46 and USP <1251>
• Thermal stability assessment of adhesives, coatings, and elastomers under controlled oxidative environments
• Bake-out cycles for semiconductor packaging substrates and printed circuit board assemblies
• Pre-conditioning of test specimens prior to tensile, impact, or dielectric testing (ASTM D618, ISO 291)
• Residual solvent removal from lyophilized biologics intermediates
• Accelerated shelf-life testing of battery electrolytes and cathode materials
• Calibration reference chamber for secondary temperature sensors and data loggers

FAQ

What is the maximum operating temperature for the TLG series?
The standard configuration supports continuous operation up to 300°C; models rated for 250°C use lower-power heating elements and are designated with suffix “A” (e.g., TLG-9030A).

Is the oven suitable for use with flammable solvents?
No—this is a general-purpose drying oven without explosion-proof certification. Solvent-laden samples require dedicated explosion-proof ovens meeting UL 1275 or ATEX Directive 2014/34/EU.

Can temperature uniformity be verified per ISO 17025?
Yes—uniformity validation is achievable using calibrated PT100 probes and a qualified external data logger; DRETOP provides recommended probe placement patterns in the user manual.

Does the TLG series support remote monitoring?
With optional RS485 interface and compatible host software, real-time temperature streaming and alarm notifications can be configured over Ethernet or serial networks.

Are calibration certificates available?
Factory calibration reports (traceable to NIM China) are included; UKAS or DAkkS-accredited certificates require third-party service engagement post-installation.