As-Needed/As-Required Maintenance
ISE Flow Cell Cleaning Using Clenz Solution
Maintenance UniCel DxC Systems Instructions For Use A13914
Page 10-100 October 2005
ISE Flow Cell Cleaning Using Clenz Solution
The Flow Cell Cleaning procedure helps to maintain the performance of the ISE
chemistries. The procedure should be performed if one or more of the following
conditions is seen:
• A yellow discoloration at, or above, the Flow Cell CO
2
Acid port.
• A white coating throughout the flow cell.
• Continuous "CAL REF DRIFT"s which generate suppressed results.
• Low recovery for successive NA or K results.
• Excessive calibration failures due to range or span errors.
• Under extreme situations, control and sample recoveries vary, due to inaccurate
calibrations.
• As instructed by Hotline or Service Engineer.
A calibration of ALL flow cell chemistries is required after completion of the cleaning
procedure.
Material Required:
• Diluted Clenz Solution freshly prepared by adding 10 drops of Clenz Solution
Concentrate (P/N 664090) to 5 mL Saline.
• One 5 mL syringe.
• Flow cell cleaning kit (P/N 473181) - optional.
Completely fill the syringe with diluted Clenz Solution. Tap syringe gently to remove
any air bubbles.
Flow Cell Cleaning Procedure
NOTICE
System will not autoprime in maintenance move. After completion a
maintenance procedure, or if a procedure is aborted, exit Maintenance menu to
resume autoprime and return system to Standby.
CAUTION
To prevent damage due to electrical static discharge (ESD), wear the wrist
ground strap when performing this procedure. for further instructions, refer
to "Basic Laboratory Practice
" at the beginning of this chapter
To Next Page
Loading...
Need help?
General
