Dewpoint China Model:M297595

M297595-type dew point instrument is based on The People's Republic of China national standard GB/T11944-2002 "insulating glass" standard design and manufacture of hollow glass used to detect the dew point performance, a dedicated instrument.
Dewpoint blocks from the copper tube and special low-temperature digital thermometer form.
Use
1. Dewpoint injected into the glass tube of about 25mm of ethanol or acetone, then add dry ice to the temperature dropped to -40 â??, open the digital thermometer, switch, insert the thermometer inside the glass tube to observe the temperature dew point instrument, and in all During the experiment, by adding dry ice to the glass tube inside, so that the temperature maintained at -40 â??.
2. In the sample surface, pour a little ethanol or acetone, the dew-point hygrometer in close contact with the surface of the sample to maintain three minutes.
3. Remove the dew point instrument, immediately observe whether the inner surface of the glass sample condensation or frost.
Specification and main technical parameters
1. Instrument height: 300 ± 5mm measuring surface diameter: 50 ± 5mm
2. Measuring range: -100-100 â?? Accuracy: ± 0.5 â?? Accuracy: 0.1 â??
3. Battery Voltage: 3 V (very energy-saving design, two on the 5th battery, boot mode can be used in a continuous 1 year)
4. use of the environment: temperature 0-50 â?? Relative humidity: â?¤ 85% non-corrosive gas
equipment includes: a high-precision digital thermometer , tube 1 (300mm), a copper base (diameter 50mm), thermometer measuring the certificate a copy of a certificate, description of a system of dry ice to take a device that can easily get the system to take dry ice. (By this method the cost of the system to take the dry ice is very low, almost negligible).