Genevac has launched a new version of its EZ-2 personal evaporator that incorporates a highly affordable inert purge module.
The new unit meets the requirements of the ATEX directives relating to safe removal of solvent vapours and can remove most organic solvents without forming an explosive mixture of organic vapour and air. When removing highly inflammable liquids such as diethyl, ether or pentane it is now mandatory to use the EZ-2 with inert purge module.
The EZ-2 is able to evaporate solvents in typically half the time of traditional evaporator designs, Genevac says. Users can see solvents as they collect in the trap and the collection vessel requires no defrosting when being emptied.
The inert purge facility works by controlling the flow of nitrogen from a cylinder to the evaporation chamber and is interlocked with the EZ-2 operating system. Flooding the chamber with nitrogen before evaporation commences removes the explosion risk.
A run can only commence when the chamber has been purged to a pre-set over pressure, which is automatically detected by the EZ-2. If this pressure is not reached, for example because the lid has not sealed properly or the drain valve has been left open, the EZ-2 fails safe and will not allow evaporation to commence.
In addition, the inert purge module has an easy to read regulator indicating cylinder gas pressure and an inter-lock, which prevents purge commencing if the cylinder pressure is too low.