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Product Service: Domestic 1-800-522-7658, International 816-333-8811
Chapter 4: Using Your Freeze Dryer
5. 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.
6. Recorder Jack – This standard 8 pin DIN connector
allows the user to monitor the system parameters with a
remotely connected instrument. Signal outputs from
this jack are 1) collector temperature, 2) vacuum level
and 3) RS232 data stream.
7. Auto Mode Annunciator – When lit, the green LED
indicates that the Freeze Dryer unit is in the Auto
Mode. In this mode, the vacuum pump will start when
the collector temperature reaches –40°C.
8. Auto Mode Switch – Used to start or stop the
refrigeration and the Auto Mode process.
9. Manual Operation Annunciator – When lit, the green
LED indicates the Freeze Dryer unit is being controlled
manually by the operator. Each function must be
started by the operator.
10. Manual Refrigeration Switch – Used to start only the
refrigeration module.
11. Vacuum Annunciator – This green LED indicates that
power is being supplied to the vacuum pump receptacle
on the back of the unit.
12. Vacuum Switch – Used to start or stop the vacuum
pump manually.
13. Defrost Annunciator – This green LED indicates that
the defrost heater is on.
14. Defrost Switch – Used to turn the defrost heater on or
off.
15. Purge Valve Annunciator – This green LED indicates
that the purge valves are closed.
16. Purge Valve Switch – Used to open or close the purge
valves.
17. Shell Freeze Annunciator – This green LED indicates
the shell freezer is operating.
18. Shell Freeze Switch – Used to start or stop the shell
freezer.
19. Alarm Annunciator – This red LED indicates that a
system Alarm has occurred. Depress the Menu Switch
to display the alarm message on the LCD display.
