Thermo Scientific Heratherm Advanced Safety Drying Oven

Overview

The Thermo Scientific Heratherm Advanced Safety Drying Oven is an engineered solution for precise, repeatable, and compliant thermal processing in regulated laboratory environments—including pharmaceutical QC labs, clinical diagnostics, academic research, and materials testing facilities. Designed around convection-based heat transfer principles—either natural (gravity-driven) or forced (fan-assisted)—the oven delivers tightly controlled thermal conditions across its full operating range of +50 °C to 330 °C. Its architecture integrates dual-layer insulation, high-efficiency heating elements, and electronically modulated airflow to achieve exceptional temperature uniformity (as tight as ±1.3 °C at 150 °C for mechanical convection models) and stability (±0.2 °C at 150 °C). Unlike general-purpose ovens, the Heratherm Advanced Safety series prioritizes operational integrity through redundant safety systems, programmable logic control, and hardware-level safeguards aligned with ISO 17025, GLP, and GMP expectations.

Key Features

• Advanced dual-mode convection: Select between natural convection (OGH-series) for minimal sample disturbance or mechanical convection (OMH-series) for accelerated heating/drying kinetics and improved uniformity.
• Electronically adjustable fan speed and inlet damper control—enabling application-specific airflow optimization without manual intervention.
• Programmable controller supporting up to 10 multi-step temperature profiles, each with ramp/soak segments, ideal for method development and routine validation protocols.
• Automatic drying termination: When paired with an optional sample temperature probe (e.g., Pt100 sensor), the oven detects core sample temperature stabilization and initiates automatic shutdown—reducing energy use and preventing thermal degradation.
• Dual independent temperature alarms: Standard overtemperature cut-off plus configurable low-temperature alert—critical for cold-sensitive samples requiring strict upper and lower thermal boundaries.
• Physical security integration: Lockable door mechanism with audible alarm triggered upon unauthorized opening, supporting audit trails and process continuity in shared or high-security lab spaces.
• Energy-efficient operation: As low as 170 W (natural convection, 60 L model at 150 °C) and 259 W (mechanical convection, same conditions), verified per IEC 61000-3-2 harmonic emission standards.
• Stainless steel exterior option (SS suffix models): Compliant with USP surface cleanability requirements and compatible with ISO 14644-1 Class 7 cleanroom adjacent use.

Sample Compatibility & Compliance

The Heratherm Advanced Safety Oven accommodates a broad spectrum of sample types—including glassware, metal trays, polymer containers, desiccated reagents, and biological matrices—without compromising thermal fidelity. Internal chamber dimensions (up to 464 × 708 × 518 mm) and load capacity (25 kg per shelf, up to 19 shelves) support scalable batch processing. All models comply with IEC 61010-1:2010 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) and carry CE marking. Optional data logging via RS232/USB interface supports 21 CFR Part 11-compliant electronic records when integrated with validated third-party software. Temperature calibration traceability is maintained through NIST-traceable reference probes and documented adjustment procedures aligned with ISO/IEC 17025 Clause 6.5.

Software & Data Management

While the oven operates autonomously via its embedded microcontroller, it features a rear-panel analog/digital I/O port for external sensor integration—including optional sample temperature, humidity, or oxygen sensors. Real-time monitoring is enabled via optional Thermo Fisher Connect™ Lab Analytics platform (sold separately), which provides secure cloud-based data archiving, user-access controls, and automated report generation. Local data export is supported via USB flash drive in CSV format, with timestamped entries for all setpoints, actual temperatures, alarm events, and door status changes—facilitating internal audits and regulatory submissions.

Applications

• Residual solvent removal from API intermediates under cGMP-controlled drying protocols.
• Moisture content determination per ASTM E1868 and USP .
• Pre-sterilization drying of surgical instruments and reusable labware prior to autoclaving.
• Accelerated aging studies for packaging materials per ISO 11607-1.
• Thermal conditioning of polymers and composites during mechanical test specimen preparation.
• Stabilization of calibration standards and reference materials requiring long-term thermal equilibration.

FAQ

Is the Heratherm Advanced Safety Oven suitable for use in ISO Class 5 cleanrooms?
It is not classified for direct ISO Class 5 installation due to non-unidirectional airflow and lack of HEPA filtration; however, stainless steel models are compatible with adjacent Class 5 environments where surface hygiene and particle generation control are critical.
Can the oven be validated per IQ/OQ/PQ protocols?
Yes—the design supports full qualification: factory-installed thermocouples, accessible calibration ports, and documented uncertainty budgets enable straightforward Installation Qualification (IQ), Operational Qualification (OQ), and Performance Qualification (PQ) execution.
What is the maximum allowable ambient temperature for continuous operation?
The unit is rated for continuous use in ambient environments up to 30 °C, with relative humidity ≤80% non-condensing, per IEC 60068-2-1 and IEC 60068-2-2.
Does the oven support remote monitoring via Ethernet or Wi-Fi?
Native Ethernet/Wi-Fi connectivity is not included; however, third-party industrial gateways (e.g., Modbus TCP converters) may be deployed using the available analog output signals and digital I/O lines.
Are spare parts and service manuals available globally?
Yes—Thermo Fisher maintains a global spare parts network and provides downloadable technical documentation, including schematics, firmware updates, and maintenance checklists, via the official Thermo Fisher Support Portal.