BK/BA Series
The BK/BA Series is Yamato Scientific's precision constant temperature water bath line with a glass observation window, available in tank capacities from 27L to 144L. The BA models add a program operation function (1 pattern of 30 steps, or 2 patterns of 15 steps) in addition to the BK models' fixed temperature operation.
Manufacturer: Yamato — Japan
Overview
The BK/BA Series is Yamato Scientific's precision constant temperature water bath line with a glass observation window, available in tank capacities from 27L to 144L. The BA models add a program operation function (1 pattern of 30 steps, or 2 patterns of 15 steps) in addition to the BK models' fixed temperature operation. Extremely high temperature adjustment precision is achieved through a high-precision thermostat and circulation pump, with digital display and setting of both temperature and time. The series spans ten models across five tank sizes in both BK and BA configurations.
Glass Observation Window
The water bath features a constant temperature tank with a glass observation window and can handle capacities from 27 to 144L.
Fixed and Program Operation
In addition to the BK Series fixed temperature function, the BA Series adds a controller with program operation function of 1 pattern of 30 steps or 2 patterns of 15 steps.
High Precision Temperature Control
Extremely high temperature adjustment precision is achieved by adopting a high-precision thermostat and circulation pump.
Digital Display
The bath features digital display and setting of both the indicated and set values of temperature and time.
Common Specifications
| Specification | BK/BA Series |
|---|---|
| Operating temp. range | RT+5~80°C |
| Interior material | Stainless steel and glass |
| Temp. controller | PID control by microprocessor (BA: fixed temperature and program operation, 1 pattern 30 steps or 2 patterns 15 steps) |
| Sensor | W sensor: Pt resistance thermometer, Pt 100Ω (temp. controller) + K thermocouple (overheat protector) |
| Temp. setting / display method | Digital setting / display |
| Overheat protector | ON/OFF by microprocessor |
| Heater (SUS316) | 1.3kW |
| Timer | 1min.~99hrs. 59min. to 999hrs. 50mins, digital setting, auto start, auto stop, quick auto stop |
| Safety device | Self-diagnostic functions (heater disconnection, SSR short circuit, abnormal sensor, over current), electric leakage breaker, overheat protector |
| Window dimensions (W×H mm) | 240×215 |
| Shelf pitch | 30mm |
| Number of plates | 5pcs |
| Drain hose | φ15×20mm |
| Included accessories | Shelf plate 1pc., clamp 2pcs., stand 1pc., clamp holder 2pcs., tube connector 1pc., drainage cap 1pc. |
| Stirring method | Stir by pump |
| Temp. control accuracy | ±0.02~±0.07°C |
| Temp. distribution accuracy | ±0.3°C |
| Max. temp. reaching time | Approx. 120min. |
| Stirring system (magnet pump) | 6W |
Model Comparison
| Specification | BA300 | BA400 | BA500 | BA610 | BA710 | BK300 | BK400 | BK500 | BK610 | BK710 |
|---|---|---|---|---|---|---|---|---|---|---|
| Internal dimensions (W×D×H mm) | 300×300×300mm | 400×350×300mm | 500×400×350mm | 548×500×400mm | 640×500×450mm | 300×300×300mm | 400×350×300mm | 500×400×350mm | 548×500×400mm | 640×500×450mm |
| External dimensions (W×D×H mm) | 490×360×367mm | 590×410×367mm | 690×460×417mm | 738×560×467mm | 830×560×517mm | 490×360×367mm | 590×410×367mm | 690×460×417mm | 738×560×467mm | 830×560×517mm |
| Power source | AC220V 7A, Single phase | AC220V 11A, Single phase | AC220V 12A, Single phase | AC220V 18A, Single phase | AC220V 23A, Single phase | AC220V 7A, Single phase | AC220V 11A, Single-phase | AC220V 12A, Single phase | AC220V 18A, Single phase | AC220V 23A, Single phase |
| Weight | 19kg | 25kg | 30kg | 36kg | 46kg | 19kg | 25kg | 30kg | 36kg | 46kg |