Labconco FreeZone 4.5 Liter Freeze Dry Systems 77510 Series - Manual (Page 22)

Chapter 4: Using Your Freeze Dryer
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 To reset the SERVICE HOUR to 0, press SELECT.
 The display will show:
If you want to reset the service hours to 0, continue to hold SELECT five seconds
until hours are reset.
 Press SELECT.
 The display will show the RS-232 data transmission rate.
 To change the rate press SELECT until the desired time interval is shown.
The time between data transmissions may be set to occur at 10, 30, 60, 300
or 600 second intervals.
 Press MENU to return to display operating parameters or after a short
delay, the display will automatically switch to show operating parameters.
Automatic Start-Up
To run the Auto Mode, press the panel switch labeled REFRIGERATION AUTO.
The green LED above the switch will illuminate. This will start the refrigeration
system. When the collector reaches –40°C, the vacuum pump will start. 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 most samples may be added.
Manual Start-Up
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
VACUUM TOTAL HOUR: XXXX
SERVICE HOUR: XXXX
RS-232 TRANSMISSION RATE
10
SECONDS
VACUUM TOTAL HOUR: XXXX
RESET SERVICE HOUR: ?