Innovating science for over 130 years

Request a Quote Form

Yamato BO Series Constant Temp Laboratory Oil Bath



Easy to use, digital setting, compact design oil bath



  • White LED digital display, key entry, minimum digit of 1°C
  • Flat-shaped bath with no heater or sensor inside makes for ease in cleaning
  • Full range of safety functions


  • Digital temperature setting by ▲▼ keys
  • Removable oil tank for convenient cleaning and changing of oil
  • Heater situated outside the water tank
  • Exclusive connection for bath operational setting function with RE601/801 rotary evaporator


  • Stainless steel oil bath
  • Bath protection sheet to prevent operator from burning
  • Must be used with MB800 magnetic stirrer


  • Digital temperature setting by ▲▼ keys
  • Protected oil tank prevents burns caused by contact
  • Equipped with a drain
Operating temp. range *¹Room temp. +10~180°CRoom temp. +10~180°CRoom temp. +5~199°CRoom temp. +5~180°C
Temp. control accuracy *²±2°C ±2°C (at agitation)±0.5°C±2°C (at 100°C)
Temp. control systemPlD controlPlD control by microprocessorProportional controlPlD control by microprocessor
Temp. setting / display methodWhite LED digital display, key entry, min. digit of 1°CDigital setting by ▲/▼ keysDigital / Glass thermometerDigital setting by ▲/▼ keys
Operation functionFixed temperatureFixed temperature, quick auto-stop, auto stop, auto start--Fixed temperature, quick auto-stop, auto stop, auto start
Additional function--Keypad lock, RE signal transmission and reception, power failure recovery, calibration off-set--Keypad lock, power failure recovery, calibration off-set
Heater1000W aluminum sheathed heater1.44kW (120V)
1.44kW (240V)
Pipe heater 700WSUS316 pipeheater 1kW
SensorPt100ΩK thermocouplePt100ΩK thermocouple
Safety deviceBath protection sheetBath protection cover (ABS heat-resistant resin)Bath protection sheetBath protection cover
Automatic overheat prevention, independent overheat prevention (fixed temp.), temperature upper limit
error, Overcurrent protection fuse; Overshoot alert, Auto resume (selectable), 2A service outlet, calibration offset
Self-diagnostic function (automatic overheat prevention, temperature sensor error, triac short circuit, heater disconnection, main relay failure), circuit protector, thermal fuse, micro switch to detect heating without oilSelf-diagnostic function (automatic overheat prevention, temperature sensor error, triac short circuit, heater disconnection, main relay failure), circuit protector, thermal fuse
Interlocking control function--RE601/801 signal transmission and reception (constant operation, heat retention operation, stop), Error report to RE601/801----
Water tankCapacity~5L~4L~5.2L~7L
Dimensionsø262 (max. D286) x H240 mmMax. ø240 x bottom ø165 x H122mmø240 x H130mmø250 x H150mm
External dimensionsW340 x D349 x H231mmW250 x D290 x H130mmW310 x D360 x H230mm
Power source (50/60 Hz)AC100-115V, 10-12A (Service outlet excluded)
AC200-230V, 5-6A
AC100~120V 12.5~10.5A
AC200~240V 6.5~5.5A
AC115V 7A / AC220V 4A, no breaker*³AC115V 11A / AC220V 7A
Manufacturer Suggested Price$ 780$ 720$ 1,190$ 2,010

*1. No load operation of bath only. Maximum temperature varies by different circumstances and operational conditions.
*2. Measured under ambient temperature at 23°C±5°C, humidity of 65%RH±20%.
*3. When combined with magnetic stirrer MB800, power source is from MB800 main unit outlet.

Click on the links below to download the associated PDFs.

Constant Temperature Water Bath Overview

BO Series Catalog

BO302A/312A Catalog

To download Operational Manual, visit our Technical Support Center

36 years as a leading scientific lab equipment provider in the United States.
All products come with a 1 year warranty.
Every product is made through environmentally conscious methods and remains eco-friendly all throughout its life cycle.