2008T Troubleshooting Guide
P/N 490292 Rev. A
CO- 10.0.50 OLC TEST STARTED / OLC SELF TEST DESCRIPTION / TROUBLESHOOTING
a) Call debug screen 5. When OLC Status = 1, Conductivity Pre-Dialyzer (CPRE)
followed a minute or so later by Conductivity Post-Dialyzer (CPOS) SHOULD
gradually increase to more than 15000 (15.000 mS)! The initial instability causes
Pre Stbl Ct AND Post Stbl Ct to increase to respectively 90 and 70.
b) After no more than four (4) minutes, if CPRE stabilizes at more than 15.0 mS, Pre Dev val falls. If it
falls to and remains less than 135* then Pre Stbl Ct counts down.
c) After no more than (5) five minutes, if CPOS stabilizes at more than 15.0 mS, Post Dev val falls. If it
falls to and remains less than 70* then Post Stbl Ct counts down.
* If a BLOOD ALARM OR a red banner Conductivity alarm occurs the counters stop! In this event, see
NOTES 1 and 2 below!
NOTE 1: Resetting Blood Alarms is okay but multiple resets may cause OLC to cancel. Having to
perform multiple Blood alarm RESETS indicates a problem unrelated to Conductivity!
NOTE 2: IF a red banner Conductivity alarm occurs: A) Turn the machine OFF; B) ENSURE
the acid and bicarb is GOOD; C) Return to Dialysis Program with [Dialysate Flow] set to
500 ml/min; D) Allow six (6) minutes; E) Return to (ABOVE) procedure number
CO- 10.0.41 (page 424). If (and ONLY if) you return to here, because a Conductivity
alarm reoccurs, see (ABOVE) procedure number CO- 6.2.0 (page 384).
d) When (and if) BOTH Pre Stbl Ct AND Post Stbl Ct = 0 then OLC Status = 2.
e) CPRE followed a minute or so later CPOS SHOULD gradually fall until less than 14.0 mS. The initial
instability causes Pre Stbl Ct AND Post Stbl Ct to increase. After a few minutes, if CPRE stabilizes
Pre Stbl Ct counts down. A couple of minutes later, if CPOS stabilizes, Post Stbl Ct counts down.
f) When Pre Stbl Ct AND Post Stbl = 0 then OLC Status = 0 indicating the OLC test is complete!
g) THREE (3) possible scenarios 1) or 2) or 3) below:
1) IF (and ONLY if) “OLC Test Passed”: See
procedure number CO- 12.0.00 (
page 433).
2) IF (and ONLY if) “OLC Test Failed” AND a Conductivity alarm DID NOT occur during
the test: See procedure number CO- 10.0.60 (page 429).
3) IF “OLC Test Cancelled”: Call debug screen 6 to see the OLC Cancels 1 – 6 data boxes. If
code “1” and / or “2” appear in any of the boxes see procedure number CO- 10.0.60 (page 429).
Codes “3” through “7” refer to Table A (page 433) for their meaning.
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