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

6 Operation
38 E-812/816 Hot Extraction 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.
Pump testing
Select pump testing. The following screen opens:
Fig. 6.22: Pump testing
You can now test the functioning of the pump by changing its status. For this purpose press On or Off.
You will hear a corresponding sound.
NOTE
Change the pump status to Off before you leave this submenu, otherwise it is not possible to start an
extraction.
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.