Yamato BOA Series Large Capacity Oil Baths are high-capacity, precision-controlled constant temperature baths designed for demanding thermal applications. With a 37L bath volume and temperature control capabilities up to 200°C (BOA201) or 270°C (BOA311), the BOA Series is ideal for research, development, and industrial environments requiring highly accurate, uniform heating.
- Models: BOA201-115V, BOA201-220V, BOA311
Features:
- High temperature distribution accuracy via jet stirring method
- Interactive digital control system with menu and ▲▼ keys
- Standard equipped with:
- External alarm output
- Temperature output terminal (4–20mA / 1–5V switchable)
- RS485 communication port
- Calibration offset and key lock functions
- Bright operation lamp indicates active use
- Glass-covered operation panel protects from dripping liquids
- Sturdy drain valve for safe liquid disposal
Safety Features:
- Triple overheating protection:
- Auto shutdown at set temp +6°C
- Overheat prevention device
- Independent overheat safety circuit
- Emergency stop switch cuts power in critical scenarios
- Float switch for boil-dry and overflow prevention
- Self-diagnostic system monitors sensor, SSR, memory, water level, and more
- Overcurrent leakage breaker and power failure compensation mode
Specifications
Temperature Performance:
-
Control Range:
- BOA201: RT +10 to 200°C
- BOA311: RT +10 to 270°C
-
Accuracy (at 200°C, silicone oil):
- Control accuracy: ±0.1°C
- Fluctuation: 0.2°C
- Distribution: ±0.2°C
- Gradient: 0.5°C
-
Temp. Rise Time:
- BOA201: ~120 minutes
- BOA311: ~70 minutes
Control & Display:
- Control System: PID control by microprocessor
-
Display:
- Green 4-digit LED for actual temperature
- Red 4-digit LED for set temperature
-
Sensors:
- Pt100Ω platinum sensor for control
- Type-K thermocouple for overheat protection
Design & Construction:
- Bath Capacity: ~37L (50mm from top)
- Stirring: Jet agitation
-
Heater Type:
- BOA201: SUS316 pipe heater, 2kW
- BOA311: SUS316 pipe heater, 4.5kW
- Bath Dimensions (Inner): W312 × D440 × H320 mm
- Effective Bath Dimensions: W296 × D340 × H270 mm
- External Dimensions: W531 × D520 × H578 mm (oil bath depth: 397 mm)
- Heat Insulator: Ceramic fiber
- Weight: ~37 kg
Power Supply:
-
BOA201:
- AC115V 18.5A
- AC220V 10A
- BOA311: AC220V 21A (requires external transformer)
Included Accessories
- Stainless steel shelf × 1
- Bath lid × 1
Why Choose the Yamato BOA Series?
- Large 37L capacity for high-volume thermal applications
- Jet stirring delivers consistent temperature distribution
- Extensive safety and output features support demanding lab workflows
- External communication via RS485 and analog outputs
- 1-Year Manufacturer Warranty
- Trusted by scientists for over 40 years