Co- 5.0.0 Unstable Conductivity/Check Pressures; Co- 5.1.0 Check For Air Leak; Co- 5.3.0 No Air Seen/Isolate Pump Accuracy; Co- 5.3.1 Check Bicarbonate Steps - Fresenius Medical Care 2008K2 Troubleshooting Manual

CO- 5.0.0 UNSTABLE CONDUCTIVITY / CHECK PRESSURES
a) ENSURE Loading Pressure (Rinse port gauge) is cycling between its PEAK of somewhere
between 23 and 25 psi AND to NEVER LOWER than 11 psi.
b) Temperature influences Conductivity. If it changes more than +/- 0.2° C per minute address the
temperature problem first!
c) Turn the machine OFF to avoid air locking the deaeration pump!
d) The deaeration gauge is used next. ENSURE it reads
0 inHg before installing it!
e) Figure right, tee a gauge into the INLET tubing of the
Deaeration Pump.
IMPORTANT!
f) Return to Dialysis Program ("Select
Program" → 'Dialysis' → 'CONFIRM')!
g) Is Deaeration Pressure OKAY? Refer to
(page 667) for what pressure should be.
Yes Deaeration OKAY! Position the gauge so that
tubing in NOT pinched then see procedure
number CO- 5.1.0
No NOTE this page number, as you will return here, THEN proceed to
DEAERATION

CO- 5.1.0 CHECK FOR AIR LEAK

Per the Figure (above, right), using a flashlight, for ONE (1) MINUTE, WITHOUT LOOKING AWAY, check
for air bubbles flowing MOVING through the clear tubing at Conductivity Cell #7. Is air seen?
Yes Air seen! Proceed to
No No air seen! See procedure number
CO- 5.3.0 NO AIR SEEN / ISOLATE PUMP ACCURACY
Call debug screen 0.Watch Acid versus AAcid (Figure right) for one (1) minute. The
values don't matter but should remain within +/- 3 of each other?
Yes AAcid = Acid! See procedure number
No AAcid is NOT remaining within +/- 3 of Acid! Proceed to
CONCENTRATE PUMP

CO- 5.3.1 CHECK BICARBONATE STEPS

Watch Bic versus ABic (Figure right) for one minute. Remaining within +/- 3 of each
other?
Appendix A
(page 350).
PROBLEMS.
page 495
, procedure number
CO- 5.3.0
ERRORS.
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
AIR- 1.0.5.
(page 350).
CO- 5.3.1 (page 350).
page 397
page 498
, SECTION 13 -
, SECTION 6 -
Page 350