Thermo Scientific Heratherm OGH180-S Advanced Safety Drying Oven
| Brand | Thermo Fisher Scientific |
|---|---|
| Origin | USA |
| Model | OGH180-S |
| Instrument Type | Precision Drying Oven |
| Temperature Range | 50–330 °C |
| Temperature Uniformity (at 150 °C) | ±2.9 °C |
| Temperature Accuracy (at 150 °C) | ±0.3 °C |
| Chamber Volume | 168 L |
| Internal Dimensions (W×H×D) | 438 × 680 × 564 mm |
| External Dimensions (W×H×D) | 640 × 920 × 738 mm |
| Chamber Material | Stainless Steel 1.4016 (AISI 430) |
| Heating Method | Natural Convection |
| Standard Shelves | 2 (max. 19) |
| Max. Load per Shelf | 25 kg |
| Rated Voltage/Frequency | 230 V / 50 Hz |
| Power Rating | 3100 W |
| Weight | 69 kg |
| Footprint Area | 0.47 m² |
Overview
The Thermo Scientific Heratherm OGH180-S Advanced Safety Drying Oven is an engineered solution for laboratories requiring precise, reproducible thermal processing under stringent safety and regulatory conditions. Designed around natural convection heating architecture, it eliminates forced-air turbulence—minimizing sample disturbance, particle resuspension, and thermal gradients across sensitive materials such as pharmaceutical powders, polymer films, or moisture-sensitive reference standards. Its operational temperature range spans from 50 °C to 330 °C, with certified accuracy of ±0.3 °C at 150 °C and uniformity of ±2.9 °C across the full chamber volume (168 L), validated per ISO 17025-compliant calibration protocols. The oven’s stainless steel 1.4016 (AISI 430) interior ensures corrosion resistance against mild organic solvents and cleaning agents, while its robust mechanical door lock system prevents unauthorized access or process interruption during critical drying cycles—supporting GLP/GMP-aligned workflows.
Key Features
- Integrated dual-stage thermal protection: independent overtemperature cutoff (hardware-based) and low-temperature alarm—both configurable via front-panel interface
- Optional sample temperature sensor (sold separately) enables real-time monitoring and display of both chamber air and actual sample surface temperature on the high-contrast LCD screen
- “Auto-Dry” function: automatically terminates heating when the optional probe confirms target sample temperature stability has been achieved—reducing energy consumption and eliminating risk of thermal degradation
- Mechanically interlocked door with audible and visual door-open alert; physical key lock prevents accidental or unauthorized access during operation
- Modular shelving system: standard configuration includes two adjustable shelves; up to 19 shelves may be installed for high-throughput batch processing (max. load 25 kg per shelf)
- Front-accessible service panel and tool-free interior components simplify routine maintenance and ISO/IEC 17025 audit preparation
Sample Compatibility & Compliance
The OGH180-S accommodates a broad spectrum of sample formats—including Petri dishes, weighing boats, glass desiccators, aluminum pans, and custom trays—without compromising thermal homogeneity. Its natural convection design avoids airflow-induced desiccation artifacts common in fan-assisted ovens, making it suitable for ASTM E145-22 (Standard Practice for Gravity-Convection and Forced-Ventilation Ovens) applications. The unit complies with IEC 61010-1:2010 for laboratory electrical equipment safety and meets EN 61326-1:2013 electromagnetic compatibility requirements. Optional data logging and event-trace functionality support compliance with FDA 21 CFR Part 11 when paired with Thermo Fisher’s validated software platform, enabling electronic signatures, audit trails, and user-level access control.
Software & Data Management
While the OGH180-S operates via an intuitive standalone controller, it supports seamless integration with Thermo Fisher’s Chrono™ Lab Software Suite (optional). This platform provides remote monitoring, scheduled start/stop commands, automated report generation (PDF/CSV), and time-stamped event logs—including door openings, temperature excursions, alarm triggers, and Auto-Dry cycle completion. All data entries are cryptographically signed and timestamped, fulfilling ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available) for regulated environments. Firmware updates are delivered via secure USB import and validated per change-control procedures.
Applications
- Moisture content determination per USP <921> and AOAC 950.46 using gravimetric loss-on-drying protocols
- Pre-drying of analytical standards, filters, and crucibles prior to ashing or titration
- Stabilization and conditioning of hygroscopic reference materials (e.g., potassium hydrogen phthalate, sodium chloride standards)
- Thermal aging studies of packaging polymers and medical device components under ISO 11607-1 accelerated conditions
- Drying of chromatography sample vials, HPLC autosampler trays, and electrophoresis gels without edge curling or cracking
- Storage of temperature-sensitive reagents at controlled ambient-equivalent setpoints (e.g., 50–60 °C for enzyme stabilization)
FAQ
Is the “Auto-Dry” function enabled by default?
No—the Auto-Dry feature requires installation of the optional sample temperature probe (Cat. No. OGH-PROBE-S) and firmware activation via service technician.
Can the oven be validated for GMP use?
Yes—Thermo Fisher provides IQ/OQ documentation templates, factory calibration certificates (NIST-traceable), and on-site PQ support through certified field service engineers.
What is the minimum clearance required behind the unit?
A minimum 80 mm gap between the rear panel and wall is mandatory for ventilation and heat dissipation.
Are replacement shelves and brackets available as spare parts?
Yes—shelves (Cat. No. OGH-SHELF-STD), reinforced brackets (Cat. No. OGH-BRKT-REINF), and high-load casters (Cat. No. OGH-CSTR-HL) are stocked globally.
Does the oven support external data export via RS232 or Ethernet?
RS232 serial interface is standard; Ethernet connectivity requires the optional LAN module (Cat. No. OGH-LAN-UPG), enabling Modbus TCP and HTTP API integration.
