Fresenius Medical Care 2008T Troubleshoot Manual

2008T Troubleshooting Guide
P/N 490292 Rev. A
Page 684
P- H.4.6 BETWEEN 23.0 AND 28.0 VOLTS / MONITOR 24 VOLTS
a) With the “Select Program” banner up press the ‘Dialysis’ button but DO NOT press ‘Enter’ OR
“CONFIRM’ yet!
b) Call debug screen 10. Figure right, the 24V window is the ‘real time’
reading from the +24 volt DC supply. The HI and LO windows record
the highest and lowest starting one (1) minute after the machine is
turned on. Initially all windows = 0.0 then update after ONE (1)
MINUTE!
c) At the bottom of the screen, press the ‘Dialysate’ tab .
d) Press ‘Enter’ to return to Dialysis Program!
e) Call debug screen 10. The 24V window IS NORMALLY UNSTABLE but a problem does not occur unless
it falls below 23.0 volts or rises above 28.0 volts for eight (8) seconds.
f) WITHOUT LOOKING AWAY, watch the volt meter for ten (10) minutes. Does the MEASUREMENT
become unstable (i.e. change more than +/- 0.5) OR does the symptom you were troubleshooting
reoccur?
Yes Measurement unstable and / or symptom reoccurs! See procedure number P- H.4.7.1 (page
684).
No Measurement stable AND the symptom does NOT reoccur! Proceed to
page 685, procedure
number P- H.4.8.
P- H.4.7.1 UNSTABLE MEASUREMENT OR SYMPTOM REOCCURS
TWO (2) possible scenarios based on the stability of the MEASURED voltage:
1) IF MEASURED voltage became UNSTABLE: Proceed to
page 708, procedure number P- 4.0.0.
2) IF MEASURED voltage remained STABLE: Perform parts A THROUGH F below:
A) Place the machine into Service Mode → Options → Hardware Options.
B) Next to T and C Mode place the ‘X’ in the “Yes” box and press the
‘Enter’ key. The ‘X’ MUST turn blue! This prevents a “COND OFFSET
FAILURE” from occurring!
C) With the machine off, one at a time, swap in the card cage circuit boards with known good, (starting
with the Actuator-Test Board) then continue to part D to see if the new board fixes the problem.
NOTE! If equipped with a bibag Connector include the Interface board* among the boards swapped
in. * To LOCATE the Interface board refer to Figure 4C (page 11)
D) Turn the machine on but but DO NOT press ‘Enter’ OR “CONFIRM’ yet.
E) Return to (ABOVE) procedure number P- H.4.6 (
page 684).
F) After replacing ALL boards if the problem reoccurs proceed to
page 708, procedure number
P- 4.0.0.

Fresenius Medical Care 2008T Specifications

General

Brand	Fresenius Medical Care
Model	2008T
Category	Medical Equipment
Language	English