F- 6.1.4 Pdia Stable Between 1.0 And 8.5 - Fresenius Medical Care 2008K2 Troubleshooting Manual

F- 6.1.4 PDIA STABLE BETWEEN 1.0 AND 8.5

a) From the Home screen, ENSURE [Dialysate Flow] is set to 800 ml/min.
b) [Conductivity] MUST BE more than 11.0 mS indicating the Acid Pump is drawing!
c) Is [Conductivity] more than 14.6 mS?
Yes [Conductivity] more than 14.6 mS! Proceed to
No [Conductivity] less than 14.6 mS! See parts A THROUGH E below:
A) Call debug screen 0. Figure right, the
Balancing Chamber valve 'dots' MUST be
cycling, possibly every nine (9) seconds.
B) If Valve #24's 'dot' is blue ENSURE the external
flow indicator's 'bob' is rising and falling.
C) Valve #41's 'dot' should cycle between white
and blue almost every time the Balancing
Chamber valves cycle indicating drain flow.
Figures below
D)
DOES NOT change more than 40 per minute), watch ACFS for two (2) minutes. TWO (2)
possible scenarios below:
Scenario #1:
Scenario #2: ACFS ABNORMAL behavior: If EVER 5.9 or more OR remains lower than 1.0
D) Call debug screen 6 to see BC Switch (middle column). It normally
changes slightly (+/- 10) but if EVER more than 400 OR less than 203
indicates a flow problem. In any event see part E next page.
, ENSURING TMP is STABLE between +200 and negative 400 (stable =
ACFS NORMAL behavior: Mostly remains between 2.0 and 5.0 but may
occasionally drop below 1.0 but for NO MORE than ten (10) seconds. If
(and ONLY if) ACFS is behaving normally continue to part D.
for LONGER THAN ten (10) seconds proceed to
F- 8.0.0.
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
page 62
, procedure number F- 7.0.0.
page 89
, procedure number
Page 54