QIAcube Connect MDx User Manual 12/2020
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6.7.2
Tightness test
To ensure that the tightness of the tip adapter is sufficient for accurate pipetting, the tightness test of
the tip adapter must be performed. This test must also be performed after replacing a tip adapter
O-Ring to verify if replacement is successful.
Note
: Perform the daily maintenance and cleaning of the robotic arm procedure before you perform
the tightness test. See section 6.4, Daily maintenance and section 6.6.1, Cleaning the robotic arm
modules.
1.
To start the tightness test, press the
Tools
icon on the menu bar. Press the
Maintenance
tab and
select the
Tightness
subtab. The screen shows the
Last Executed
tightness test date.
Tightness test screen
2.
Press Start to begin with the tightness test procedure. Follow the instructions on the screen.
Details are provided in the next steps below.
3.
Open the hood and load a 1000 µl tip rack with at least one 1000 µl tip into tip rack
position 1.
4.
Place an empty 2 ml safe-lock microcentrifuge tube (cat. no. 990381) in position 1 of the
shaker (shaker type 2).
5.
Place a buffer bottle filled with
≥
10 ml 96–100% ethanol in position 1.
6.
Close the hood and press
Next
to start tightness test.
After the load check, the robotic arm will pick up a tip, aspirate ethanol and move to the tube.
The tip will remain in place above the tube for 2 minutes. The tip will be discarded into the
waste afterwards.
