Manual start-up – Labconco FreeZone and FreeZone Plus 6, 12 and 18 Liter Freeze Dry Systems 79600 Series User Manual
Page 31
27
Chapter 4: Using Your Freeze Dryer
Product Service Domestic 1-800-522-7658, International 816-333-8811
Manual Start-Up
(Models not equipped with a purge valve)
To manually run the freeze dry process, press the
REFRIGERATION MAN switch. This will start the refrigeration
system. The green LED above the switch will illuminate. When
the collector temperature reaches –40°C, the vacuum pump may be
started by pressing the VACUUM switch. The Temperature and
Vacuum Graphs will indicate collector temperature and system
vacuum. The LCD display will show the actual temperature of the
collector. When the vacuum in the system is above 5 mBar the
vacuum display will indicate “HI.” At 5 mBar and below, the
display will show the actual vacuum.
When the system vacuum is between 0.450 and 0.133 mBar, the
lower green vacuum graph LED will flash. When the system
vacuum level is <0.133 mBar, the green LED will be lit steadily
indicating that samples may be added.
Manual Start-Up
(Models equipped with a purge valve)
To manually run the Freeze Dryer, press the REFRIGERATION
MAN switch. The green LED above the switch will illuminate.
The PURGE switch and VACUUM switch may be pressed.
LED’s above the switches will illuminate. The purge valve will
close and the vacuum pump will start. (Do not start the vacuum
pump without first closing the purge valve). When the collector
temperature reaches –40°C or any time afterwards, press the
PURGE switch to open the purge valve. The Temperature and
Vacuum Graphs will indicate collector temperature and system
vacuum. The LCD display will show the actual temperature of the
collector. When the vacuum in the system is above 5 mBar the
vacuum display will indicate “HI”. At 5 mBar and below, the
display will show the actual vacuum.
When the system vacuum is between 0.450 and 0.133 mBar, the
lower green vacuum graph LED will flash. When the system
vacuum level is <0.133 mBar, the green LED will be lit steadily
indicating that samples may be added.