BRAND PLT unit Mode D'emploi page 48

Testing single-channel pipettes (cont.)
What to do?
7.
Confirming the
pipette volume
8.
Starting the test
Press the pipette
button 2-3 times
9.
Ending the test
Note:
The missing volume can be approximately determined
using the correlation table on page 61.
48
How to do it
Press the 'Start/Execute'
button. The 'Start' submenu
is called up.
Press the 'Start/Execute'
button.
The test is begun, and
the test pressure is set (in
progress...)
Shortly before the end of the
preparation period, the LED
light shines 1 time red and
1 time green, then the prog-
ress bar appears and the
system automatically starts
the measurement. At this
time, the pipette button is
pressed down evenly 2-3
times. The piston must return
the initial position before the
measurement is finished! The
progress bar graphic indi-
cates the remaining time and
the currently achieved vacu-
um. The LED indicator blinks
orange.
After the test is finished, the
display indicates the leak
rate that was determined and
whether the system passed
the test.
The test can be repeated by
pressing the "Start/Execute"
button. Turning the select
knob leads directly to the
Main Menu.
Keys to press Display readout
SC – 100 µl
start
preparing...
restart
-121.21 hPa
restart
(pressure value is only an
example)
SC – 100 µl
Q
start
(leak rate is only an example)
green
SC – 100 µl
Q
start
red
(leak rate is only an example)
ready
Test
back
Test
4s
back
orange
PASS
: 0.04 hPa * ml/s
L
FAIL
: 4.6 hPa ml/s
*
L