Shutting Down the CIRAS-2 System
CIRAS-2 Operator's Manual Version 2.04
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Shutting Down the CIRAS-2 System
The following order of events is important to ensure an orderly shutdown once measurements are
completed:
Exit the CIRAS-2 Remote Control Program by selecting File – Exit in the CIRAS-2 menu bar.
Power off CIRAS-2 by pressing the red On/Off switch.
Disconnect the cuvette from the external 12V DC power supply (if connected).
Clean the cuvette head and leave open to avoid compressing the gaskets when not in use.
Remove the leaf cuvette electrical connector (PLC) from CIRAS-2 by pulling back on the sleeve
around the front of the connector, not the body of the connector or the wire.
Remove the reference (R) and analysis (A) gas connectors from CIRAS-2 by pulling back on the
sleeve around the front of the connector, not the body of the connector or tubing.
Remove the entire CO
2
regulator assembly from inside the CIRAS-2 console and keep separate if
CIRAS-2 is to be stored in a confined space or container, such as the carrying bag. CO
2
from the
cartridge is constantly diffusing, whether or not the regulator assembly is installed in CIRAS-2. If
left in a confined space, CO
2
from the cartridge will build up in the absorber columns, causing
premature exhaustion of the chemicals and slower instrument warm-up as excess CO
2
is flushed
out the next day.
If necessary remove both 12V NiMH batteries and place them on their own chargers (supplied by
PP Systems).
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