47
4. Place the drain hose in a suitable container to collect the condensate from the
collector chamber. Insert the quick connect drain fitting into the quick connect
drain coupling located on the left-hand side of the unit.
5. Flush the collector chamber with water and wipe chamber dry.
6. Disconnect the quick connect drain fitting from the quick connect drain coupling.
Disconnect the quick connect drain fitting before starting the vacuum pump.
Failure to remove the fitting will result in a large vacuum leak.
Do not attempt to chip ice from the collector coil as damage may occur.
Never attempt to start the vacuum pump when there is liquid in the collector
chamber. This could result in damage to the vacuum pump.
Alerts
Several events may occur during a freeze-drying run that will cause an alert to be
displayed on the units’ touch screen. An audible alarm will also be sounded that will
automatically be muted after one minute if the alarm has not been addressed. The
specific alert type can be identified by observing the message box on the display. The
alert message box and audible alarm can be dismissed by pressing the “Back” button
on the alert message box. The following conditions will initiate an alert.
Power Fail
If a power failure occurs during a run, the vacuum control valve will allow air to bleed
into the freeze dryer. If the failure is of a short duration and the collector does not warm
above -
30⁰C, when power is restored the freeze dryer will restart and resume operation
of the refrigeration and vacuum systems. If the power failure lasts for a longer duration
and the collector warms above -
30⁰C, when the power is restored the freeze dryer will
not automatically restart. This prevents melted sample from being drawn into the
collector, ultimately preventing the liquid from being drawn into the vacuum pump.
When power is restored, the POWER FAIL alert message will be displayed on the touch
screen and the audible alarm will sound.
Line Voltage Range
If the voltage supplied to the freeze dryer varies beyond allowable limits, the LINE
VOLTAGE RANGE alert will be activated. The high and low alarm points are factory
preset to correspond to the normal allowable voltage variations based on the nominal
voltage specified for the freeze dryer. Some models may be operated outside the
normal voltage limits (
see Appendix C
). If necessary, the high and low line voltage
offsets may be adjusted from the Settings/Maintenance screen.
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Страница 59: ...59 Figure A 1...
Страница 61: ...61 Appendix B Dimensions Dimensions shown in inches centimeters...
Страница 62: ...62 26 5 673 mm 25 4 645 mm...
