2008T Troubleshooting Guide
P/N 490292 Rev. A
CO- 5.0.0 UNSTABLE CONDUCTIVITY / ISOLATE PRESSURES
a) ENSURE Loading Pressure (Rinse port gauge) is cycling to a PEAK of somewhere between 23
and 25 psi.
b) [Temperature] influences Conductivity. If [Temperature] changes more than +/- 0.2° C per minute
address the temperature problem first!
c) Turn the machine OFF to avoid air locking the deaeration pump!
d) The deaeration gauge is used next. ENSURE it reads
0 inHg before installing it!
e) Figure right, tee the gauge into the INLET (clear)
tubing of the Deaeration Pump.
f)
IMPORTANT! Return to Dialysis Program (“Select
Program” → ‘Dialysis’ → ‘Enter’)!
g) Is Deaeration Pressure OKAY? Refer to Appendix A
(page 757) for what pressure should be.
Yes Deaeration OKAY! Position the gauge so that its
tubing in NOT pinched then see procedure
number CO- 5.1.0 (page 380).
No NOTE this page number, as you will return here, THEN proceed to
page 543, SECTION 13 -
DEAERATION PROBLEMS.
CO- 5.1.0 CHECK FOR AIR LEAK
Per the Figure (above, right), using a flashlight, for ONE (1) MINUTE, and WITHOUT LOOKING AWAY,
watch for air bubbles flowing through Conductivity Cell #7. Is air seen?
Yes Air seen! Proceed to
page 539, procedure number AIR- 1.0.5.
No No air seen! See procedure number CO- 5.3.0 (page 380).
CO- 5.3.0 NO AIR SEEN / ISOLATE ACID PUMP CONTROL
Call debug screen 0. Watch AAcid versus Acid for one (1) minute. Remaining within
three (3) of each other?
Yes AAcid = Acid! See procedure number CO- 5.3.1 (page 380).
No AAcid is NOT remaining within three (3) of Acid! Proceed to
page 441, SECTION 6 -
CONCENTRATE PUMP ERRORS.
CO- 5.3.1 ISOLATE BICARB PUMP CONTROL
Watch ABic versus Bic for one (1) minute. Remaining within three (3) of each other?
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