Beckman Coulter LH 780 Instructions Manual page 120

TROUBLESHOOTING
DILUTER FUNCTIONS
4. Verify the lot number of the primer and control. If you must use a new lot number,
ensure that it has been set up properly.
CAUTION Possible system damage could occur if you aspirate anything except latex control or latex primer
using this function. Do not aspirate any other materials with this function.
5. Go to the Numeric Keypad.
6. Press
Diff and Retic test modes. The Numeric Keypad displays PRESS MANUAL OR CLEAR
APERTURE.
APERT
7. Press
8. Remove the cap of the latex primer vial.
9. Immerse the aspirator tip in the latex primer vial. The instrument automatically aspirates
the RETIC+DIFF primer. The Numeric Keypad displays RETIC+DIFF PRIMER while the
instrument performs this function. When this function completes processing, the
Numeric Keypad displays FUNCTION = 57.
10. Remove the vial from the aspirator tip when you hear a beep and the Analyzer Status line
displays PREPARING SAMPLE. The aspirator tip automatically retracts and the probe
wipe cleans it.
11. At the Workstation, check the results from the primer.
12. If the results in the
Otherwise, if the results in the
a. At the Numeric Keypad, press
Numeric Keypad displays PRESS MANUAL OR CLEAR APERTURE.
b. Perform steps 6 through 9 up to three more times.
c. If you do not get a result below 500, cycle a new vial of primer.
d. If you still do not get a result below 500, call your Beckman Coulter Representative.
13. At the Numeric Keypad, press
Numeric Keypad displays PRESS MANUAL OR CLEAR APERTURE.
IMPORTANT
CLEAR APERTURE is only used before aspirating latex primer in this procedure.
5-8
E
N
T
E
F 5 7
R
to aspirate LATEX primer and LATEX control for combined
PRIME
. The Numeric Keypad displays PRESS MANUAL OR PRESENT SAMPLE.
column are less than or equal to 500, proceed to step 12.
PRIMER
Erroneous results could occur if you press CLEAR APERTURE before aspirating latex control.
PRIMER column are greater than 500:
E
N
T
E
R
to reactivate the function for the control. The
E
N
T
E
R
to reactivate the function for the latex control. The
PN 773023AC