Co- 7.0.0 Troubleshoot Cond Cell #7 Circuit - Fresenius Medical Care 2008K2 Troubleshooting Manual

CO- 7.0.0 TROUBLESHOOTING COND CELL #7 CIRCUIT
IMPORTANT!
a) Turn the machine OFF!
b) Figure right, place the
resistor plug, from the TWO-
RESISTOR SET, into
Conductivity Cell's #7
distribution board position, "X7,
COND".
c) Install a conductivity meter into the dialysate lines to measure 'actual' conductivity subsequently!
d) Place the machine into Service Mode → Calibrate Sensors → Cond Cells. Follow the screen's
instructions through: "4. Waiting until the Conductivity value is stable."
e) ALLOW six (6) minutes before continuing!
f) Verify measured Conductivity is between 13.0 and 14.3!
g) If Cond Cell #7's reading stabilizes, "5. Conductivity value is stable...." appears?
Yes "5. Conductivity value is stable..." Do NOT continue with the calibration! Cond Cell #7*
may be bad. *To locate Cell #7 refer to
No See procedure number
274 Ω
CO- 7.3.0 (page 364).
LEFT BLANK INTENTIONALLY
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
Figure 57 (page 344).
Page 363