Vapor Adsorption Option
The Vapor Adsorption Option uses vapors as the adsorbent when the sample is near or above room temperature. The analysis system is heated to approximately 45 ºC and the vapor source to approximately 40 ºC, which allows analyses at up to 35 ºC.
The Vapor Adsorption option consists of a vapor enclosure, heated manifold cover, temperature controller, and vapor source tube.
Vapor Enclosure
The vapor enclosure houses the vapor tube. Its temperature is regulated by the temperature controller. The door to the vapor enclosure should remain closed while the instrument is in operation.
Temperature Controller
The front panel of the temperature controller has a display for the vapor source and a separate display for the manifold.
Upon installation, the temperature of the vapor source is set at 40 ºC (for analysis temperatures up to 35 ºC). The analysis manifold is set between 55 and 60 ºC to achieve a 45 - 47 ºC manifold temperature (displayed on the instrument schematic).
Use the Up and Down arrow keys to adjust the temperature.
Analysis Manifold
Do not adjust the temperature of the manifold. The manifold temperature has been set and calibrated to 45 ºC and is suitable for any type of analysis. If the manifold temperature is changed, recalibration by a Micromeritics Service Representative is required. |
The manifold temperature displayed on the schematic will differ from the temperature displayed on the temperature controller. A difference of 10 ºC to 15 ºC is typical. The schematic reading reflects the true manifold temperature and is the one used in calculations.
Vapor Source
For analysis temperatures up to 35 ºC, the recommended temperature for the vapor source is 40 ºC. For analysis temperatures over 35 ºC, use the Up and Down buttons to adjust the temperature of the vapor source to a value that is midway between the manifold temperature and the analysis temperature. For example, to perform analyses at 40 ºC and the manifold temperature displayed on the instrument schematic is 45 ºC, adjust the vapor enclosure temperature to 42.5 ºC.
Vapor Tube
The vapor tube contains the vapor source and is installed inside the vapor enclosure.
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