Cond Cell #7 Stabilizers; 'Confirm' The [Conductivity] Data Box - Fresenius Medical Care 2008T Troubleshooting Manual

Yes [Conductivity] box pale yellow! See procedure number
No [Conductivity] box remains gray! Possible problem with the Cond Cell #7 circuit.
Proceed to
CO- 6.3.0 COND CELL #7 STABILIZES
a) Press the [Conductivity] data box, it turns bright yellow.
b) Enter the external meter's reading into the [Conductivity] box.
c) 'Sharply' press 'Enter' to turn [Conductivity] pale yellow / white. Does [Conductivity] remain within
0.2 of the external meter?
Yes [Conductivity] remains within +/- 0.2 of the meter! See procedure number
(page 386).
No Read BEFORE performing! Acid Clean the machine THEN return to (ABOVE) procedure
number CO- 6.2.0
a time, swap the listed components (see COMPONENT LIST below) with known good
THEN, return to (ABOVE) procedure number
0.2 of the meter indicating the last component swapped in is bad!
COMPONENT LIST: 1) Conductivity Cell #7* *To LOCATE Cell #7 refer to the Figure
previous page); 2) Sensor Board; 3) Functional Board (IC 20?).
CO- 6.3.2 'CONFIRM' THE [CONDUCTIVITY[ DATA BOX
'Sharply' press 'Enter'. Does the screen say "7. Connect the Lines to a Large Dialyzer..."?
Yes "Connect the Lines..." appears! See procedure number
No a) If (and ONLY if) the screen says "8. Reading first point for post conductivity cell." see
procedure number
b) 'Sharply press 'Enter' again to save the calibration. Does any type of an "Error" banner occur
(Yes or No)?
Yes "Error" banner occurs!. Read before performing! Acid clean the machine then
return to (ABOVE) procedure number
RETURN HERE swap the listed components (see COMPONENT LIST below) one
at a time and repeat procedure number
Indicating the last component swapped in is the problem.
COMPONENT LIST: 1) Conductivity Cell #7 (see
2) Sensor Board; 3) Functional Board (IC 20?).
a) Return to Dialysis Program ("Select Program" → 'Dialysis' → 'Enter')!
No
b) From the Home screen, set [Dialysate Flow] to 800 ml/min and press 'Enter'!
c) Allow six (6) minutes before continuing to part d!
d) If you started out troubleshooting an OLC problem proceed to
page 395
, procedure number
(page 384). If (and ONLY if) you return here, with the machine off, one at
CO- 6.4.0 (page 387).
procedure number CO-
2008T Troubleshooting Guide
P/N 490292 Rev. A
CO- 7.0.0.
CO- 6.2.0 until [Conductivity] remains within
CO- 6.4.0
CO- 6.2.0 (page 384) HOWEVER, if you
CO- 6.2.0
10.0.41.
CO- 6.3.0 (page 386).
CO- 6.3.2
(page 387).
until an "Error" does NOT appear!
Figure 57, page 374);
page 424
,
Page 386