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Collector Temp
After the collector temperature has cooled below -
40⁰C, an alert will be activated if the
collector temperature rises above -
40⁰C for more than 5 minutes.
Collector Moisture
If there is liquid in the collector chamber and either the COLLECTOR or VACUUM start
button is pressed, neither function will start and an alert will be activated. This feature
prevents the inadvertent start of the vacuum pump when liquid is in the collector and
thereby can extend the life of the vacuum pump. A few drops of liquid may remain in the
drain hose after draining. When the vacuum pump is started these drops may be
sucked into the collector chamber. This is normal.
Service Vacuum Pump
The vacuum pump plugs into the vacuum pump electrical receptacle on the back of the
extraction freeze dryer. When the unit has accumulated a total of 1000 operating hours,
an alert will be activated. It may be necessary to service the vacuum pump more
frequently than every 1000 hours depending on the operation of the freeze dryer.
If
using a rotary vane vacuum pump, oil should be regularly monitored to verify it is
clear.
The “Set hours between oil change” can be reprogrammed from the
Settings/Maintenance screen for any value from 0 to 9999 hours.
Vacuum Set Point
If the system is unable to achieve the vacuum set point, during Manual or Program
mode, an alert will be activated. This alert will be activated if the vacuum level is not
within 0.500 mbar of the vacuum set point in 20 minutes.
Vacuum Leak
If the vacuum level in the freeze dryer has not reached at least 5 mbar within 30
minutes of starting the vacuum, an alert will be activated and the vacuum pump will turn
off (if it is plugged into the freeze dryer vacuum pump outlet).
Status Email Messages
If this option has been turned on, the selected email addresses will receive STATUS
alert messages containing the current operating parameters of the freeze dryer. Status
alert messages will not be displayed on the touch screen. The freeze dryer can be
configured to send email status alert messages from the Settings/Alerts/Select Alerts
screen.
