Thermo Fisher Scientific Heratherm General Purpose Oven OGS60

Overview

The Thermo Fisher Scientific Heratherm General Purpose Oven OGS60 is an engineered solution for routine laboratory drying, baking, sterilization, and temperature stabilization applications requiring precise, reproducible thermal environments. Designed according to ISO 17025-aligned calibration practices and compliant with key elements of IEC 61010-1 for laboratory electrical equipment safety, the OGS60 employs natural convection heating to deliver stable thermal conditions across its 65 L stainless-steel chamber. Its operational range spans +50 °C to +250 °C — a specification validated per ASTM E145–22 (Standard Specification for Gravity-Convection and Forced-Convection Laboratory Ovens). Unlike forced-air ovens, this model avoids mechanical fans that may disturb delicate samples or introduce particulate contamination, making it particularly suitable for gravimetric analysis, moisture content determination (e.g., AOAC 950.46), and pre-conditioning of polymeric or pharmaceutical excipients prior to compaction or dissolution testing.

Key Features

• Corrosion-resistant 304 stainless-steel chamber with fully radiused internal corners — facilitates cleaning and prevents residue accumulation in accordance with GLP cleaning validation requirements
• Natural convection architecture ensures uniform airflow without turbulent air movement — critical for low-disturbance drying of filter papers, crucibles, or glassware
• Vacuum fluorescent display (VFD) with high-contrast readability under ambient lab lighting — supports rapid parameter verification during multi-step protocols
• Microprocessor-based control system with intuitive touch-sensitive membrane keypad — enables direct setpoint entry, timer activation (up to 99 h 59 min), and real-time deviation monitoring
• 180° full-swing door design — maximizes accessibility for loading/unloading stacked trays or large-format samples while maintaining structural rigidity
• Independent over-temperature protection circuit — complies with EN 60519-2 and provides fail-safe thermal shutdown if primary controller exceeds user-defined limits
• RS232 serial interface as standard — enables integration into centralized lab management systems for audit-ready temperature logging (supports FDA 21 CFR Part 11–compliant data capture when paired with validated software)

Sample Compatibility & Compliance

The OGS60 accommodates standard laboratory ware including porcelain crucibles (max. Ø120 mm), aluminum weighing dishes, Petri dishes, and borosilicate glass beakers up to 1000 mL. Its chamber geometry supports up to 13 adjustable stainless-steel shelves (2 supplied), each rated for 25 kg distributed load — sufficient for concurrent processing of multiple USP assay batches or EPA Method 503.1 sample sets. The unit meets CE marking requirements under the EU Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU. Chamber surface finish adheres to ASTM A480–23 specifications for stainless-steel mill products, ensuring resistance to chloride-induced pitting during repeated exposure to saline or buffer residues.

Software & Data Management

While the OGS60 operates autonomously via its embedded microcontroller, its RS232 port permits bidirectional communication with third-party data acquisition platforms such as Thermo Fisher’s SampleManager LIMS or LabArchives ELN. Raw temperature logs can be timestamped and exported in CSV format for traceability. When deployed in regulated environments (e.g., pharmaceutical QC labs operating under GMP Annex 11), users may implement external validation packages to establish electronic record integrity, including user authentication, audit trails, and change control — all prerequisites for compliance with FDA 21 CFR Part 11 and EU Annex 11.

Applications

• Drying of soil, sediment, or biological tissue samples prior to gravimetric moisture content analysis (ASTM D2234, ISO 11465)
• Baking of ceramic filters and sintered metal components in materials science workflows
• Pre-heating of volumetric flasks and pipettes to minimize thermal expansion errors in analytical chemistry
• Stabilization of reference standards and certified reference materials (CRMs) under controlled ambient-equivalent conditions
• Low-risk depyrogenation of glassware used in non-sterile parenteral manufacturing (per USP guidance)
• Accelerated aging studies of packaging materials per ISTA 3A and ASTM D3045 protocols

FAQ

Does the OGS60 support programmable ramp-soak profiles?
No — the OGS60 is a single-setpoint, time-controlled oven. For multi-stage thermal protocols, consider the Heratherm MCO series or integrate with external programmable logic controllers.
Can the chamber accommodate standard ISO/IEC 17025 calibration probes?
Yes — the 328 × 480 × 415 mm cavity allows placement of Class 1 PT100 probes (e.g., Fluke 1523) at multiple spatial locations for uniformity mapping per EURAMET cg-18.
Is the stainless-steel interior electropolished?
No — the chamber features a mechanically polished 2B finish per ASTM A666, optimized for cleanability and corrosion resistance rather than ultra-low particulate generation.
What is the maximum allowable ambient temperature for continuous operation?
The unit is rated for ambient temperatures up to +35 °C with relative humidity ≤80 % non-condensing, as specified in IEC 60068-2-1 and IEC 60068-2-2.
Are replacement shelves and door gaskets available as spare parts?
Yes — Thermo Fisher part numbers are published in the official Service Manual (P/N 50132024), with lead times aligned to global distribution hubs in Rotterdam and Atlanta.