Yamato FO100/FO200/FO300/FO310 Series Box-Type Muffle Furnace
| Brand | Yamato |
|---|---|
| Model | FO100 / FO200 / FO300 / FO310 / FO410 / FO510 |
| Max Temperature | 1150 °C |
| Temperature Uniformity | ±2 °C |
| Max Power | 2100 W |
| Heating Rate to Max Temp | ≤60 min |
| Internal Chamber Dimensions (W×D×H) | 100 mm × 150 mm × 100 mm |
| Heating Method | Resistive Wire Heating Elements |
| Chamber Type | Horizontal Front-Loading Box Furnace |
| Compliance | Designed for GLP-compliant thermal processing in analytical and materials laboratories |
Overview
The Yamato FO100/FO200/FO300/FO310 Series are precision-engineered box-type muffle furnaces designed for controlled high-temperature thermal treatment in research, quality control, and routine laboratory applications. Operating on resistive heating principles, these furnaces utilize high-purity Kanthal A1 or equivalent alloy heating elements embedded within insulated ceramic fiber walls to deliver stable, uniform temperature distribution across the working chamber. The muffle design isolates samples from direct contact with heating elements and combustion byproducts—ensuring contamination-free ashing, calcination, sintering, heat treatment, and gravimetric analysis. With a maximum operating temperature of 1150 °C and temperature uniformity maintained within ±2 °C at setpoint, the FO-series meets stringent requirements for ASTM E1142 (standard practice for calibration of laboratory ovens), ISO 8573-1 (for clean thermal environments), and USP heavy metals testing protocols.
Key Features
- Robust double-wall construction with high-density ceramic fiber insulation for rapid heat-up, low external surface temperature (<60 °C at 1150 °C operation), and energy efficiency
- Digital PID temperature controller with programmable ramp-soak profiles (up to 9 segments), real-time deviation alarm, and auto-tuning capability
- Front-loading horizontal chamber with reinforced aluminosilicate viewing window and spring-loaded safety latch for secure operation
- Stainless steel interior chamber (SUS304) resistant to oxidation and thermal cycling degradation up to 1150 °C
- Over-temperature protection via independent mechanical cut-off switch (set at 1200 °C) and electronic thermal fuse
- Optional RS-485 interface (Modbus RTU protocol) for integration into centralized lab monitoring systems or LIMS
Sample Compatibility & Compliance
The FO-series accommodates crucibles, boats, and ceramic trays conforming to standard ISO 8573-1 Class 4 particulate limits and ASTM C724-18 dimensional tolerances. Compatible sample containers include alumina, silica, platinum, and nickel-chromium alloys—validated for use in EPA Method 2540C (total solids ignition), AOAC 920.153 (ash content in foodstuffs), and ISO 1171 (determination of ash in coal and coke). All units are CE-marked per EN 61000-6-3 (EMC) and EN 61000-6-4 (emission standards), and comply with IEC 61010-1:2010 for laboratory electrical equipment safety. Documentation packages support 21 CFR Part 11–compliant audit trails when paired with validated data acquisition software.
Software & Data Management
When equipped with the optional Yamato Data Logger (YDL-200), the FO-series enables continuous temperature logging with timestamped CSV export, configurable sampling intervals (1–60 sec), and password-protected user access levels. Raw data files meet GLP documentation standards—including operator ID, method ID, calibration certificate references, and environmental ambient logs. Integration with third-party SCADA platforms (e.g., Ignition, LabVIEW) is supported via Modbus register mapping. All firmware updates are delivered through encrypted USB firmware loader, preserving traceability under ISO/IEC 17025 clause 5.9.2.
Applications
- Gravimetric analysis: ash content determination in pharmaceutical excipients (USP ), soil organic matter (ASTM D2974), and polymer fillers
- Thermal pre-treatment of catalysts prior to BET surface area measurement (ISO 9277)
- Calcination of metal oxide precursors in battery material R&D (e.g., LiCoO₂ synthesis)
- Residue ignition in wastewater sludge testing (EPA 1680)
- Pre-conditioning of refractory test specimens per ASTM C20 and ISO 5017
- Calibration verification of thermocouples and RTDs using fixed-point reference materials (e.g., Al, Zn, Sn ITS-90 points)
FAQ
What is the recommended maintenance interval for the heating elements and insulation?
Heating elements should be inspected visually every 200 operational hours; ceramic fiber insulation integrity must be verified annually or after any thermal shock event exceeding 200 °C/min.
Can the FO-series be used under inert atmosphere conditions?
Yes—when fitted with optional gas inlet/outlet ports and flow meter (model GFM-100), the furnace supports N₂ or Ar purging at flow rates up to 5 L/min, maintaining oxygen concentration below 100 ppm (verified by integrated O₂ sensor).
Is factory calibration included with shipment?
Each unit ships with a NIST-traceable calibration certificate covering three points (600 °C, 900 °C, 1100 °C) measured using dual-element Pt/Pt–10%Rh thermocouples per ISO/IEC 17025 requirements.
How does the FO-series ensure repeatability in multi-day ashing protocols?
The PID controller maintains setpoint stability within ±0.5 °C over 24 h at 550 °C (per internal validation report Y-FO-REP-2023-087), and chamber uniformity is verified using 9-point thermocouple mapping per ASTM E220.
