M&C EC-30C Instruction Manual page 14

The EC-30C switches automatically every 3 hours between the two deep freezer units. The
deep freezer which is currently not in use, will be defrosted to prevent freezing of the heat
exchanger and clogging of the gas lines. Upon special request, this cycle of 3 hours can be
reduced directly at your facility by M&C personnel.
The new graphical user interface is icon-based for easy and intuitive navigation. The mes-
sages are displayed in form of easy-to-understand icons. Features like time stamps for the
alarm message history, periodically self-monitoring and pre-warning messages to inform
about upcoming maintenance work ensure a maximum degree of comfort, ease-of-use
and safety of operation of the EC-30C.
The smart periodically self-monitoring of the EC-30C, helps to plan upcoming mainte-
nance and service work to prevent unnecessary down time.
A configurable mA-output is part of the EC-30C standard version.
Three optional peristaltic pumps SR-25.2 for automatic condensate removal can be in-
stalled into the unit.
An internal flow meter including an optical flow sensor can be installed into the unit as an
option. Another option would be an external flow meter including an optical flow sensor
or an external humidity sensor.
A fourth optional peristaltic pump can be installed in combination with a second solenoid
valve to provide permanently fresh test gas to the inactive cooling unit. This makes sure
that even in systems, where water vapor cross sensitivity exists, there are no visible peaks
at switching of the dual deep freezer unit. This also prevents short peaks in the sample gas
concentration due to stagnant gas.
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