Gerätebeschreibung
The zero and span gas and sometimes the carrier gas as well
might have to be set to a defined moisture level in order
to obtain reproducible analysis values.
MCZ provides differently dimensioned systems for this purpose;
these systems are used to set the rel. gas humidity.
Construction and process depend on use.
MCZ offers two basic options:
- A part of the treated zero air is set to a rel. humidity
of 100%. Based on total flow, a program calculates the portion
of the dry zero air that has to be replaced by the zero
air with 100% rel. humidity in order to set the required
humidity level. Mass flow controllers are used by the program
to establish this ratio.
- 2. The second option of dampening the gas consists of
calculating the absolute water quantity at a specific rel.
humidity in relation to the total flow. The calculated water
portion is continuously removed from a storage container
and added to the gas to be dampened condensation free via
an atomizer. A mass flow controller for liquids regulates
the required quantity of water.
