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The solvent level sensing feature will monitor solvent
usage to minimize the risk of running out of solvent during
a purification run. The system compares the volume
required for a purification run with the estimated volume
in the solvent container and alerts you when there is not
enough.
6. If using the solvent level sensing feature, enter the
Minimum Solvent Level (density dependent) as a range in
centimeters.
To understand this range, consider that dichloromethane is
more dense than hexane. If the selected range is 2–4, the
system triggers an alert when the dichloromethane level
falls to about 2 cm above the weighted filter. At the same
selected range, the system would trigger an alert when the
hexane falls to about 4 cm above the weighted filter.
2.11.2 General Settings
CombiFlash R
your system. The name will appear in operational displays
and run summaries. This feature is useful when your
laboratory has more than one CombiFlash R
Language – Select the desired language from the drop-down
list box.
2.11.3 Vapor Limit
The system has an internal vapor sensor that detects vapors
present in the immediate atmosphere. When the limit is
exceeded, the CombiFlash R
hazardous condition.
Teledyne Isco recommends using the default setting of 25.
This value represents an organic vapor level slightly above the
ambient vapor level of a well-ventilated laboratory.
A setting below 25 could cause random alarms without
significant vapors present. If PeakTrak displays a Vapor Limit
alarm while the Vapor Limit is set at 25, perform the following
checks on your laboratory and the instrument:
• Ensure that no open containers or spills of organic
solvent are in close proximity to the system.
• Ensure that the system is located in a well-ventilated
area.
Name (optional) – Use this option to name
f
will shut down to avoid a
f
Section 2 System Preparation
system.
f
2-13
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