Grinding Vial Sizes, Adapters, And Vial Openers; Touchscreen Display; Logo Screen - Cole Parmer Freezer/Mill CG-400 Operation Manual

CG-400/CG-450 Freezer/Mill
4.3 Lid, Coil Assembly, and LN Sensor (Cont'd)
The liquid nitrogen (LN) sensor is the small tube mounted on the left wall of the LN tub. If there
is not enough liquid nitrogen in the tub to start the mill when the run button is touched, LN LEVEL
LOW screen (Section 5.4) will display LN LEVEL LOW. If the LN runs low during a grinding program
the same message will appear and the program will stop. To continue running, fill the tub with
liquid nitrogen to the mark on the back of the tub. When the run button is pressed, the grinding
program will begin where it left off.

4.4 Grinding Vial Sizes, Adapters, and Vial Openers

Large vials (6801, 6871) are run one at a time in the CG-400/CG-450 Freezer/Mill, without any
adapter. Large vials are opened using the 6804 Extractor/Vial Opener, which is part of the 6870L
Accessory Package or the optional 6808 Large Vial Extractor.
Mid-Size vials (6881, 6883, 6885) are run one at a time, but the 6887 (6888) Mid-Size Adapter
must be placed in the chamber first, to center and align any Mid-Size vial. Mid-Size vials can be
opened by the 6804 Extractor/Vial Opener, but only by installing the 6884 Mid-Size Vial Adapter
for the 6804. The 6884 and 6887 Adapters comprise the 6870M Accessory Package.
Most Small vials (6751, 6761, and 6771) can be run one, two, three, or four at a time in the CG-
400/CG-450 Freezer/Mill. However, they must be used in conjunction with the 6807 Multi-Vial
Holder. The 6807 Adapter keeps the vials parallel to each other, so each impactor moves back
and forth in line with the magnetic field. When running Small vials, make sure the chamber gate
contacts the end plug of every vial. If the gate needs adjustment to do this, the bottom or pivot
end of the gate can be moved toward or away from the chamber housing by turning the gate
clockwise or counterclockwise on its mounting bolt.

5.0 TOUCHSCREEN DISPLAY

The CG-400/CG-450 Freezer/Mill is programmed and operated through a series of touchscreen
displays. Transition between screens, and all programming and operating commands, are done
by touching the screen with a fingertip or stylus. Do not use a sharp point as this can damage or
deface the screen.

5.1 Logo Screen

When the power is switched ON at the back of the mill, "FreezerMill" appears during start-up as
the software loads. Then the screen will switch to the Home Screen, as shown in Figure 4. From
the Home screen the Control Panel, Saved Protocols, Run History, and Settings can be accessed
by touching the buttons displayed.
Cole-Parmer® Page 11 of 33
1300-87051-1M, REV 6