BBL Series
The BBL Series is a benchtop constant low temperature water bath line from Yamato Scientific that ensures a wide temperature range and sufficient bath space in a compact footprint.

Manufacturer: Yamato — Japan
Overview
The BBL Series is a benchtop constant low temperature water bath line from Yamato Scientific that ensures a wide temperature range and sufficient bath space in a compact footprint. It offers precise control with a temperature control accuracy of ±0.1°C, an external circulation function with an easily operated water valve, and shelf plates that can be height-adjusted across two sections for small vessels. Auto stop and auto start operations are supported, along with RS485 communication and a temperature output terminal (4 to 20mA). The series includes two models, BBL101 and BBL301.
Benchtop Low Temperature Bath
The bath ensures a wider temperature range and sufficient water bath space in a benchtop design.
Internal and External Circulation
The bath has an external circulation function, and the water valve can be easily operated to switch between internal and external circulation.
Adjustable Shelf Plates
The shelf plates' height can be adjusted across two sections, accommodating small vessels.
Communication and Auto Operation
The bath supports auto stop and auto start operations, auxiliary with RS485 communication function and a temperature output terminal (4 to 20mA).
Common Specifications
| Specification | BBL Series |
|---|---|
| System | Pump circulation cooling / external closed circulation |
| Operating temperature range | -10~+80°C (at room temperature 20°C) |
| Temperature control accuracy | ±0.1°C |
| Temp. distribution accuracy | ±0.3°C |
| Cooling capacity | Approx. 370W (320 kcal/h), at fluid temp. 15°C |
| Temperature control | PID control |
| Operation function | Fixed temp., auto stop, auto start operations |
| Temperature sensor | Temp. controller: Pt thermal resistance, overheat protection: K thermocouple |
| Temp. setting, display | Digital setting and display |
| Refrigerator, refrigerant | Air cooling 160W, R134A |
| Stirring method | Magnetic drive pump |
| Heater | 700W |
| External circulation nozzle | O.D. 10.5mm of water outlet and return port |
| Operating environmental temp. range | 5~30°C |
| Safety device | Overcurrent ELB, self-diagnosis, refrigerator overload protector, refrigerator delay timer of protection, refrigerator pressure detection, float switch preventing pump idling, auto overheat protection, overheat protector, key lock, etc. |
| Other function | Water valve, condenser filter screen, deviation correction, external communication (RS485), refrigerator pressure indicator, power outage compensation, temp. output terminal |
| Accessories | Bottom shelf plate, lid, drain hose, overflow hose |
Model Comparison
| Specification | BBL101 | BBL301 |
|---|---|---|
| Internal dimensions (W×D×H mm) | 300×150×177.5mm | 300×240×177.5mm |
| External dimensions (W×D×H mm) | 500×530×500mm | 500×603×500mm |
| Power source | AC220V 5A, Single-phase with step down transformer | AC220V 6A, Single-phase with step down transformer |
| Weight | 50kg | 55kg |
