2008T Troubleshooting Guide
P/N 490292 Rev. A
CO- 8.4.0 ISOLATE ACID PUMP
a) Turn the machine OFF!
b) Figure right, ENSURE the Acid (red) AND Bicarbonate
(blue) Connector’s O-rings AND ENSURE the filters are
clean AND the adaptor plugs are screwed in tight
c) Read parts d and e before performing them!
d) Perform the ACID (CONCENTRATE) PUMP VOLUME CALIBRATION per the Calibration booklet.
e) Are you able to enter measured burette volumes
without an “Operator Error” (Figure right)
occurring?
Yes “Operator Error” did NOT occur! See procedure number CO- 8.5.2 (page 405).
No “Operator Error” occurred! Acid pump problem! See (ABOVE) procedure number CO- 4.9.0
(page 379).
CO- 8.5.2 ISOLATE BICARBONATE PUMP
a) Perform the BICARBONATE PUMP VOLUME CALIBRATION.
b) Are you able to enter measured burette volumes without an “Operator Error” occurring?
Yes “Operator Error” did NOT occur. See procedure number CO- 8.5.4 (page 405).
No “Operator Error” occurred! Bicarb Pump problem! See (ABOVE) procedure number CO- 4.9.0
(page 379).
CO- 8.5.4 VERIFY CONDUCTIVITY
a) Return to Dialysis Program (“Select Program” → ‘Dialysis’ → “Enter’)!
b) From the Home screen, set [Dialysate Flow] to 800 ml/min and press ‘Enter’!
c) Allow fifteen (15) minutes BEFORE continuing to part d.
d) ENSURING the external flow indicators’ ‘bob’ is moving up and down, is the external meter now within
+/- 0.4 mS of TCD?
Yes Conductivity within 0.4 of TCD! The pump calibrations fixed the problem!
No Conductivity is NOT within 0.4 of TCD! TWO (2) possible scenarios:
1) IF (and ONLY if) measured conductivity is LESS THAN TCD - (minus) 0.4 (i.e.
Cond is Low): Proceed to page 407, procedure number CO- 8.7.0
2) IF measured conductivity is MORE THAN TCD + 0.4 (i.e. Cond is High): See
procedure number CO- 8.6.0 (page 406).
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