BUCHI Extraction Unit E-816 SOX - Manual (Page 38)

6 Operation
38 E-812/816 Soxhlet Operation Manual, Version B
Valve testing
Select Valve testing. The following screen opens:
Fig. 6.21: Valve testing
You can now test the functioning of the three valves by changing their status. For this purpose, select
a valve and press Open or Close. You will hear a corresponding sound and see a corresponding reac-
tion, depending on your setup.
NOTE
Close all valves before you leave this submenu, otherwise it is not possible to start an extraction.
NOTE
The tank valve may overheat if it is open for more than 10 s, the valve therefore closes after 10 s and
cannot be reopened for another 20 s afterwards.
To get back to the Service functions press the backward button.
Sensor testing
Select sensor testing. The following screen opens:
Fig. 6.23: Sensor testing
The “X” behind the sensor name signalizes that the sensor is activated. This is the case when:
• the solvent tank is completely full (Solvent)
• the cooling water is flowing (Flow)
• the protective shield is down (Shield)
For the rack, the “X” has a special meaning:
• Pos. up: [X] Pos. down [X]: Rack is up