|The lines and reactors are flushed
The logically designed system prevents dangerous pressure build up
in the lines and in the reactor during the purging operation.
Solenoid valve (1) for the N2-purging operation is controlled
manually by the user. The purging mode is activated via the �purge�
and �inert� control module buttons. Pressure reducing valve (2)
reduces the N2 delivery pressure.
Filters and check valves provide additional safety.
The entire system is filled with H2 during the second purging phase.
The instrument is ready for the experiment.
is ready for the experiment. The user selects the desired reaction
pressure and then checks to ensure that there will be an adequate
gas flow rate.
The consumed gas volume is calculated from the numbers of solenoid
valve cycles, pressure, temperature and volume of the calibrated
reservoir (5), using the gas laws.
To protect the instruments, both reservoir solenoid valves (3) are
never open at the same time. This prevents the occurrence of a
pressure shock to the reactor.