Labconco FreeZone 4.5 Liter Freeze Dry Systems 77510 Series - Manual (Page 33)

Chapter 6: Using the RS232 Receptacle
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5.
The “Com X Properties” dialogue box will open. Enter the appropriate data
properties and press “OK.”
6.
When the Freeze Dryer main power switch is on, the data will be transmitted
and updated at the time intervals selected by the user.