Fresenius Medical Care 2008K Troubleshooting Manual page 161

Table A - Debug Screen 6 OLC Values
Parameter Description
Pos-Start Post dialyzer conductivity
at the start of OLC test
Pre-Start Pre dialyzer conductivity at
the start of OLC test
Max QBS (Blood Maximum QbS during
pump stability) OLC test
QD Begin Dialysate flow at beginning
of OLC test
QD End Dialysate flow at end of
OLC test
QD Cancel Dialysate flow when OLC
test was canceled
QB Cancel Blood flow when OLC test
was canceled
OLC Cancels 1- 6
1
During OLC test Conductivity ramps up from base conductivity to 15.5 mS.
2
After achieving 15.5 mS Conductivity ramps down to 13.5 mS unless the base conductivity is less than
13.5. In this event it ramps down to the base conductivity.
Value
Depends on dialysate selections
Depends on dialysate selections
Less than 20 indicates stable blood pump rate. If
greater than 20 the OLC test cancels. See also QB
Cancel and OLC Cancels.
Should be within 10 ml/min of selected Dialysate flow
rate when the test started. See also QD Cancel and
OLC Cancels.
Should be within 10 ml/min of selected Dialysate flow
rate when the test ended. See also QD Cancel and
OLC Cancels.
If not within 10 ml/min of QD Dialysate flow rate
changed during the OLC test. See also QD Cancel
and OLC Cancels.
If blood pump speed changed during the OLC test the
OLC test cancels. See also OLC Cancels.
1 – Unable to reach or stabilize at the upper
conductivity level (15.5 mS
2 – Unable to reach or stabilize at the lower
conductivity level (approximately 13.5 mS
3 – Blood pump stability greater than 20 (see also
QbS, screen 5)
4 – Dialysate flow unstable (see also QdS, screen 5)
5 – OLC test disabled
6 – Dialysate flow was turned off
7 – OLC test started
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Section 5 – Conductivity/ On Line Clearance Problems
1
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2
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