Labconco FreeZone and FreeZone Plus 6, 12 and 18 Liter Freeze Dry Systems 79600 Series - Manual (Page 25)

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Chapter 4: Using Your Freeze Dryer
Product Service Domestic 1-800-522-7658, International 816-333-8811
9. Auto Mode Indicator – When lit, the green LED indicates that the
Freeze Dryer is in Auto Mode. In this mode, the vacuum pump will
start when the collector temperature reaches –40°C.
10. Vacuum Graph Display – This display indicates the relative system
vacuum level. The highest LED indicates that the vacuum level is
above 2.0 mBar. The indicators will sequence down when the vacuum
level reaches 2.0, 1.0, 0.8, 0.6, 0.45, 0.12 mBar. The lower green LED
flashes when the system vacuum level is 0.45 to 0.12 mBar and
illuminates steadily below 0.133 mBar.
11. Collector Temperature Graph Display – This display indicates the
temperature of the collector. The highest LED indicates the collector
temperature is warmer than 10°C. The indicators will sequence down
when the temperature reaches 10, 0, -10, -20, -30, -40°C. When the
collector temperature is –40°C or lower the green indicator will light.
12. Alarm Indicator – This red LED indicates that a system alarm has
occurred. Press the Menu Switch to display the alarm message on the
LCD display.
13. Main Power Switch – Turns the Freeze Dryer on or off. (Not shown,
located on the left side of the cabinet.)
14. Defrost Switch – Used to defrost ice from the collector coil.
15. Defrost Indicator – This green LED illuminates when the Freeze Dryer
is in defrost mode.
16. Purge Valve Switch – Used to open or close the purge valve, if the
model is so equipped.
17. Purge Valve Indicator – This green LED illuminates when the purge
valve is closed.
18. Shell Freezer/Vacuum Chamber Switch – Used to operate the shell
freezer or the heater on the vacuum chamber if the model is so
equipped.
19. Shell Freezer/Vacuum Chamber/Indicator – This green LED
illuminates when either the shell freezer or vacuum chamber heater is
operating.