Chemical/Dwell Program - Fresenius Medical Care 2008K Operator's Manual

Chapter 5—Disinfection and Maintenance

Chemical/Dwell Program

The Chemical/Dwell program should be used when disinfecting the hydraulic system using
chemical disinfectants that can remain in contact with internal components for prolonged
periods without damaging them. Formaldehyde can be used with the Chemical/Dwell
program for maximum effectiveness.
To run the Chemical/Dwell program:
1. Attach a sign to the front of the machine that identifies the chemical being used to
disinfect the machine.
2. Ensure that both dialysate lines are on the shunt and both concentrate connectors in their
respective ports
3. Place the concentrated disinfectant in the small container with the yellow cap.
4. From the "Select Program" screen, touch Chemical/Dwell.
Figure 62 – The Chemical/Dwell Screen
5. The "Chemical/Dwell" screen appears in the display (see Figure 62). The progress of the
disinfection program is indicated by the horizontal bar. The program starts with a 45
second rinse. The message, "Rinsing Line, Please Wait" is displayed in the Status Box.
6. When prompted, connect red connector to chemical disinfectant. Press CONFIRM.
7. Water Pre-rinse will start. Remaining Pre-rinse Time meter box counts down.
134 2008K Hemodialysis Machine Operator's Manual Rev P