Thermo Fisher Scientific BF51732/BF51841/BF51842 LGO Series 1200 °C Box Furnace
| Brand | Thermo Fisher Scientific |
|---|---|
| Origin | USA |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Origin | Imported |
| Model | BF51732 / BF51841 / BF51842 |
| Instrument Type | Box Furnace |
| Temperature Range | 100 °C to 1200 °C |
| Door Mechanism | Vertically Lifting Lid |
| Chamber Volume | 16.4 L |
| Control System | Integrated Digital Controller |
| Voltage/Frequency | 208–240 V, 50/60 Hz |
| Power Rating | 4500 W |
| Internal Dimensions (H×D×W) | 177.8 × 279.4 × 330.2 mm |
| Transport Weight | Approx. 130 kg |
Overview
The Thermo Fisher Scientific LGO Series 1200 °C Box Furnace (models BF51732, BF51841, and BF51842) is a high-temperature laboratory furnace engineered for precision thermal processing in research, quality control, and materials development environments. Designed around a robust ceramic fiber insulation architecture and a dual-zone heating element configuration, the furnace delivers uniform temperature distribution across its 16.4 L chamber—critical for reproducible calcination, ashing, sintering, and heat-treatment protocols. Its vertically lifting lid mechanism minimizes heat loss during sample loading and enhances operator safety by eliminating forward-swinging door hazards common in hinge-mounted designs. The unit operates within a calibrated range of 100 °C to 1200 °C, with ±1 °C temperature stability at setpoint under steady-state conditions—a specification validated per ASTM E220 and ISO/IEC 17025-compliant calibration procedures. As an OEM-built instrument manufactured in the United States, it meets stringent UL 61010-1 and CE safety standards for Class I, Division 1 laboratory equipment.
Key Features
- Vertically actuated lift-door design with counterbalanced mechanism for smooth, low-effort operation and reduced thermal leakage
- Dual-zone silicon carbide (SiC) heating elements ensuring axial and radial temperature uniformity ≤ ±5 °C at 1200 °C (per internal mapping per IEC 60584-2)
- Integrated digital controller with programmable ramp-soak profiles (up to 10 segments), real-time PID tuning, and auto-tuning capability
- Ceramic fiber insulation (low thermal conductivity < 0.15 W/m·K at 1000 °C) minimizing standby power consumption and enabling rapid cool-down
- Front-panel USB port and RS-485 interface supporting remote monitoring and integration into centralized lab automation systems
- Over-temperature protection circuit with independent mechanical limit switch and thermocouple-based electronic cutoff (Type K, Class 1 tolerance)
Sample Compatibility & Compliance
The LGO furnace accommodates standard crucibles (alumina, quartz, platinum, and silicon carbide), ceramic boats, and refractory trays up to 100 mm in height and 250 mm in diameter. It supports inert, oxidizing, and mildly reducing atmospheres when used with optional gas purge kits (N₂, Ar, or forming gas). All models comply with ISO 17025 traceable calibration requirements and are compatible with GLP/GMP workflows—data integrity is preserved via audit-trail-enabled controller firmware meeting FDA 21 CFR Part 11 criteria for electronic records. The furnace’s construction adheres to ASTM C168 definitions for thermal insulation performance and satisfies EN 60519-2 electrical safety provisions for industrial heating equipment.
Software & Data Management
The embedded controller includes native data logging (sample interval configurable from 1 s to 60 min) with timestamped CSV export via USB flash drive. Optional Thermo Fisher Connect™ Lab Analytics software enables secure cloud synchronization, multi-furnace fleet monitoring, and automated report generation compliant with ISO/IEC 17025 clause 7.7 (result reporting). All logged temperature profiles include metadata such as operator ID, batch number, and environmental ambient reference—facilitating full traceability in regulated QC labs. Firmware updates are delivered through digitally signed packages verified via SHA-256 checksums.
Applications
- Quantitative ash content determination per AOAC 923.03 and ASTM D3174 for coal, biomass, and polymer composites
- Pre-sintering of ceramic green bodies prior to hot isostatic pressing (HIP)
- Thermal gravimetric analysis (TGA) sample preparation and residue stabilization
- Calibration of thermocouples and RTDs using fixed-point metal baths (e.g., Zn, Al, Cu)
- Heat treatment of metallurgical specimens for microstructural homogenization (per ASTM E112 grain size analysis prep)
- Decomposition studies of catalysts, battery cathode precursors, and MOFs under controlled oxidative conditions
FAQ
What is the maximum recommended continuous operating temperature?
The furnace is rated for continuous operation at 1200 °C; prolonged use above this temperature voids warranty and risks insulation degradation.
Can the furnace be used under vacuum or controlled atmosphere?
It is not vacuum-rated; however, optional gas inlet/outlet ports support continuous purge configurations with flow-controlled inert or reactive gases.
Is NIST-traceable calibration documentation included?
Yes—each unit ships with a factory calibration certificate referencing NIST SRM 1750a (Alumel-Chromel thermocouple wire) and ASTM E220 interpolation tables.
How often does the thermocouple require recalibration?
Annual verification is recommended for GMP applications; more frequent checks (e.g., quarterly) are advised when processing high-value or regulatory-critical samples.
Does the controller support custom alarm logic or external interlocks?
Yes—the digital controller provides two programmable relay outputs (dry contact, 5 A @ 250 VAC) for integration with exhaust hoods, emergency shutoff valves, or PLC-based safety systems.
