BUCHI Vacuum Controller V-855 - Manual (Page 17)

4 Description of function
17 V-850/855 Operation Manual, Version E
4 .1 .2 Rear connections
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2
3
4
5
6
7
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a Connection for AutoDest probe/switch box (AS/SB)
b Connection for cooling water valve (CW)
c Connection for valve unit or vacuum valve (VALVE)
d Power supply connection for stand alone mode
30 VDC
e Mains switch On/Off
f USB for data output/firmware update
g Fixation for support rod
h RS 485 connection to V-700/710 or R-210/215
i Remote control (RC 81)
j RS 232 connection for Rotavapor (R-200/205/250)
k Aeration valve with inert gas connection
l Vacuum connection to valve unit/Woulff bottle
4 .2 Controller operation modes
When using a Rotavapor R-200/205 or R-210/215 seven different modes are available for the vacuum
controller:
• Manual mode
• Timer mode
• AutoDest mode (V-855 only)
• EasyVac mode (V-855 only)
• Gradient mode (V-855 only)
• Repeat mode (V-855 only)
• LabVac mode
When using a Rotavapor R-220 SE or R-250 four different modes are available for the vacuum
controller:
• Manual mode
• Timer mode
• Gradient mode (V-855 only)
• Repeat mode (V-855 only)
All modes are described in the following.
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