Hitachi CHROMASTER 5160 Instruction Manual page 651

3. OPERATION
The method of column oven operation using the optional UI pad
is described here.
Fatigue due to Long-Hour Operation
If you keep working with the display monitor in the same
posture for long hours, your eyes and body will be fatigued.
When working with the display monitor for a long time, take
a break for 10 to 15 minutes per hour for health of your eyes
and body.
NOTE: Prior to connecting a new column, make sure to fill the
flow path with a mobile phase so that air won't enter
the column.
3 - 1
CAUTION
3