Co- 10.0.44 Pre Dev Value Less Than 135/Conductivity Stability - Fresenius Medical Care 2008K2 Troubleshooting Manual

CO- 10.0.44 PRE DEV VALUE LESS THAN 135 / CONDUCTIVITY STABILITY
a) Post Dev val (right column) is the conductivity difference between now and one (1)
minute ago from Post-Conductivity Cell #13. If no alarms it changes continually!
b) After no more than three (3) minutes, if not already, Post Dev val should fall to less than 70. TWO (2)
possible scenarios:
1) IF Post Dev val is OR falls to less than 70: See procedure number
2) IF Post Dev val NEVER falls below 70: Post Cond is unstable! ENSURING no alarms occurred
see parts a and b below:
a) Per the Figure above, using a flashlight and WITHOUT LOOKING AWAY, for one minute, if air
bubbles are flowing through the Post Dialyzer Cond Cell #13's locate and repair the air leak!
b) If (and ONLY if) absolutely sure of no air proceed to
CO- 10.0.60.
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
CO- 10.0.46
page 391
, procedure number
(page 388).
Page 387