The Yamato FP-303 is a 7.5 L high-performance muffle furnace reaching 1150 °C with ±1.5 °C control accuracy at top temperature — tighter than the standard FO line — driven by a PID microcomputer with jog-dial setting, a Pyromax heating element, and a single-piece vacuum ceramic-fiber furnace casing. Its 16-segment ramp programming suits reproducible multi-crucible ashing and controlled heat-treatment. This is the 115V variant; the 220V sibling is the FP-313.
Key Specifications
| Model / capacity | Yamato FP300 (FP-303) — approx. 7.5 L |
| Operating temperature range | 100 to 1150 °C |
| Adjustment accuracy | ±1.5 °C (at 1150 °C) |
| Time to reach temperature | Approx. 80 min (at 1150 °C) |
| Control system | PID control by microcomputer |
| Setting / display | Digital setting by jog dial; green-LED display; fluorescent function display |
| Operation functions | Fixed temp, auto-start, auto-stop, program (max. 16 segments, repeat, ramp operation) |
| Additional functions | Timer, clock, total operating-hours counter (max. 49999 h), calibration offset |
| Sensor | R thermocouple (W sensor) |
| Heater | Pyromax, 2.4 kW nominal |
| Furnace casing | Single-piece vacuum ceramic fiber |
| Cooling fan | Condenser motor, 14 W |
| Exhaust opening | Internal diameter φ18 mm |
| Safety devices | Earth-leakage breaker, thermal fuse, independent overheating-prevention device, key lock, self-diagnostics |
| Internal dimensions | 200 × 250 × 150 mm (W×D×H) |
| External dimensions | 446 × 505 × 566 mm (W×D×H) |
| Weight | Approx. 42 kg |
| Power supply | 115V, 50/60 Hz (base FP300: 100V AC single phase, 26 A) |
Application Profile
The FP line is the high-performance muffle furnace tier: where the FO series holds ±2 °C, the FP-303 holds ±1.5 °C at 1150 °C and adds 16-segment ramp programming so multi-stage heat treatments — controlled ramp-up, isothermal soak, and defined cool-down — run reproducibly rather than as a single set-and-hold. Its 7.5 L chamber batches a full crucible tray per run, making it a productive choice for analytical labs running frequent ashing or loss-on-ignition series to sensitive heating-rate protocols.
Two design choices set the FP apart: the Pyromax heating element and the single-piece vacuum ceramic-fiber casing, which together give fast, uniform heating with a robust chamber, while the PID microcomputer with jog-dial entry, clock, and total operating-hours counter support documented, auditable operation. Note that at 115 V this model draws a substantial 26 A, so confirm circuit provisioning; the 220 V FP-313 draws only 13 A for the same heater. As with any muffle furnace, allow complete burn-off before gravimetric weighing, and add the optional exhaust device unit for volatile or corrosive off-gassing.
Frequently Asked Questions
What accuracy does the FP-303 hold, and how is it better than the FO line? It holds ±1.5 °C at 1150 °C via PID microcomputer control — tighter than the FO series' ±2 °C — and adds 16-segment ramp programming for staged profiles.
How big is the chamber? The internal volume is 7.5 L (200 × 250 × 150 mm), suited to multi-crucible batches.
What is the electrical draw at 115 V? The base FP300 draws 26 A at 100 V single phase — a high single-phase current, so verify the circuit. The 220 V FP-313 draws 13 A for the same 2.4 kW heater.
What heating element and chamber does it use? A Pyromax heater in a single-piece vacuum ceramic-fiber furnace casing.
What ships with it? Instruction manual, warranty, and a thermal fuse. Optional accessories include an exhaust device unit, sample tray, N₂ gas leading device, external alarm, temperature output terminal, and an outer communication adapter.
Ordering & Configuration
Add to quote or cart for a formal quotation. At quote we confirm supply voltage (this is the 115V SKU drawing 26 A — verify the circuit; order FP-313 for 220 V / 13 A), exhaust and any N₂ needs, output-terminal/communication options, and lead time.
At ~42 kg and 446 × 505 × 566 mm, site it on a stable, noncombustible bench with clearance and ventilation for the hot exterior and exhaust. Warranty: per Yamato standard capital-equipment terms — warranty card included; confirmed at quote.
Yamato FP high-performance muffle furnace, 7.5 L:
- FP-303 (this product) — 7.5 L, 115V (26 A), ±1.5 °C, 16-segment ramp programming
- FP-313 — 7.5 L, 220V (13 A)
- Step down to FP-103 (1.5 L) or up to FP-413 (11.3 L); choose the FO series for ±2 °C at lower cost.
