Within the ITS-90, the temperature values of both the water triple point and the mercury triple point are realized using a precision liquid (water or alcohol) bath. These thermostats feature a temperature control stability of ±0.002°C and can achieve low temperatures down to -42 ℃. The bath is equipped with a color touch screen, input ports for standard platinum resistance thermometers (SPRTs), and a curve display function for easy observation of temperature plateau realization. It has a depth of 520 mm, weighs approximately 40 kg, and features a working chamber diameter of 138 mm. Cooling is provided by a single-stage refrigeration system, which incorporates multiple protection features along with rapid cooling and low-noise operation modes.
- Operating Temperature: Alcohol: -40 ℃ to 50 ℃ (-40°F to 122°F)
- Working Area: Diameter 138mm (5.4"), Depth 510mm (20.1")
- Wetted Parts: 304 stainless steel
- Liquid Volume: Approximately 13 liters (3.4 gal)
- Stirring Method: Jet stirring, three-speed adjustable
- Temperature Control Method: Fully digital PID control
- Display Resolution: 0.001 ℃
- Temperature Stability: ±0.002 ℃ /10min at 0 ℃ (32°F); ±0.003 ℃ /10min at -40 ℃ (-40°F)
- Temperature Uniformity: ±0.005 ℃ at 0 ℃ (32°F); ±0.010 ℃ at -40 ℃ (-40°F)
- Heating Time: 60 minutes from -40°C(-40°F) to 25°C(77°F)
- Cooling Time: 180 minutes from 25°C(77°F) to -40°C(-40°F)
- Operating Voltage: 110VAC ±10%, 60Hz (Customizable Technical Specifications)
- Rated Power: Approximately 1500W
- Dimensions: 405mm (15.9") x 350mm (13.8") x 870mm (34.3")
- Net Weight: Approximately 40 kg (88.2 lb)