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CombiFlash® Rf
User Manual
solvents. For proper operation of this function, Solvent 1 must
be the weak normal phase solvent (typically an alkane such as
hexane). Solvent 2 must be the strong solvent (such as ethyl
acetate). Solvent 3 is the weak reverse phase solvent (usually
water) and solvent 4 is the strong reverse phase solvent (such
as methanol or acetonitrile).
2.13.3 General Settings
CombiFlash Rf Name (optional) – Use this option to name
your system. The name will appear in operational displays
and run summaries. This feature is useful when your
laboratory has more than one CombiFlash Rf system.
Time Zone – Select your time zone from the drop-down list
box.
2.13.4 Set Date/Time
Click this button to open a window from which you can set the
system date and time.
To prevent unauthorized time changes, this feature is
password protected. The system is shipped with the password
set to combiflash. Use the Tools>Set Password menu
command to change this password for greater security.
2.13.5 Vapor Limit
The system has an internal vapor sensor that detects vapors
present in the immediate atmosphere. When the limit is
exceeded, the CombiFlash Rf will shut down to avoid a
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.
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