Beckman Coulter LH 780 Instructions Manual page 128

TROUBLESHOOTING
DILUTER FUNCTIONS
Clearing Flow Cell (Level 1)
1. Go to the Numeric Keypad.
2. Press
Purge the flow cell with cleaning agent.
r
Turn on the flow cell aperture current.
r
Apply low pressure to the flow cell.
r
Alternately apply vacuum.
r
Check the flow cell for a clog.
r
The Numeric Keypad displays FLOWCELL UNCLOG 1 while the instrument performs
this function. When the function completes processing, the Numeric Keypad displays
FUNCTION = 44. Press
3. Press
Clearing Flow Cell (Level 2)
CAUTION Risk of system damage. This function places stress on the flow cell. Excessive use of this
function can damage your instrument. Use this procedure only if other functions fail to remove the clog and
never more than specifically instructed to do so by your Beckman Coulter product information or Beckman
Coulter Representative.
1. Go to the Numeric Keypad.
2. Press
Purge the flow cell with cleaning agent.
r
Turn on the flow cell aperture current.
r
Apply 30 psi to top of the flow cell.
r
Alternately apply vacuum.
r
Check the flow cell for a clog.
r
5-16
E
N
T
E
F
4 4
R
to
E
N
T
E
R
to perform this function again.
STOP
to exit this function. The Numeric Keypad displays READY.
E
N
T
E
F 4 5
R
to
PN 773023AC