South Million and is teaching equipment in Jiangsu Province famous brand production and R & D

Nanjing Nanda million and Technology Co., Ltd. Nanjing University authorized the establishment of products containing materialized, biology, physics and other laboratory instruments and equipment, teaching equipment production and development as the main industry, supplemented by consulting service. For more product information please call detailed consultation. Purposes: for physical chemistry experiment teaching, or other freezing point, freezing point, melting point measurement occasions Features: ☆ The device uses high-power semiconductor cooling element cooling, high efficiency, environmental protection, no noise. Active cooling temperature switch control, easy and intuitive. Current can be continuously adjusted to achieve at any time to control the speed of cooling or heating the purpose of achieving ramp speed control. The use of forced air cooling surface, DC fans, low noise, high efficiency. ☆ No external connection cooling water, cooling water without water will not cause damage to the instrument trouble. ☆ The device enables a relatively hot weather southern schools can easily set up the experiment. ☆ magnetic stirring, stirring speed continuously adjustable, no mechanical friction effect, without stirring rod heat transfer problems. Bottom magnetic stirring design, open the sample above the operating space, which will help increase the sample sampling, easy to observe. The experimental device also can be used with a computer system through a specially designed test software, operating more accurate and convenient, and can save the data in a common file format to facilitate processing and analysis with other software tools print. Performance parameters: temperature, temperature resolution: 0.01 ℃ / 0.001 ℃; coolers Operating voltage: 0 ~ 12V, working current: -15A ~ 15A; refrigeration power adjustment range: 0 ~ 150W; cold bath temperature control range: -25 ℃ ~ 35 ℃; Temperature measurement range: -20 ℃ ~ + 150 ℃; Temperature measurement resolution: 0.01 ℃; the temperature difference between the temperature measuring range: -50 ℃ ~ + 180 ℃; temperature difference measurement resolution: 0.001 ℃ (temperature range: ± 19.999 ℃) the temperature difference between the auto-zero RS232 interface optional instrument consists of: the host comprises: an adjustable power supply; magnetic stirring, temperature measurement, temperature measurement, the cooling heating device, cooling bath.