Fresenius Medical Care 2008K Troubleshooting Manual page 155

CO- 10.1.0 CHECK POST DIALYZER TEMPERATURE SENSOR
a) Referring to the Figure (right) and
the entire length of post dialyzer's Conductivity and
Temperature Sensor's wiring harness's for insulation damage
or extreme 'stickiness' (due to heat). Replace the sensor if
damage is located!
b) Referring to the Figure (right), unplug the Post-Dialyzer
Temperature sensor #44 from distribution board position x44
th
("NTC-POST", 11
c) If (and ONLY if) screen 0's Post Dialyzer TEMP data box did NOT go to less that 34° C see procedure
number CO- 10.2.0
d) CAREFULLY place the 6.04 K
vacant position.
e) Call debug screen 0. Is screen 0's Post Dialyzer TEMP data box reading between 36 and 38° C?
Yes See procedure number
No a) Assure the 6.04 K
not, return to procedure number
b) CAREFULLY perform POST TEMPERATURE SENSOR calibration per procedure. If
an "Operator Error" message occurs turn the machine off and repeat. If the message
reoccurs, four possibilities: 1) Bad sensor cable; 2) Bad sensor board; 3) Bad function
board; 4) Bad distribution board.
c) Perform TEMPERATURE CONTROL calibration per procedure.
CO- 10.1.22 CHECK OLC POST DIALYZER CONDUCTIVITY SENSOR (#13)
a) Referring to the Figure (above, right), unplug the Post Dialyzer Conductivity cell (#13) from distribution
board position x13 (COND-POS", 10
b) If (and ONLY if) screen 0's Post Dialyzer COND data box did NOT go to 0 return conductivity cell #13
to distribution board position x13, "COND-POS" then see procedure number
c) Using a flashlight, CAREFULLY check inside the vacant x13 position for 'white' corrosion or damaged
male pins that may cause false signals.
d) Place the 274 resistor plug, from the two-resistor OLC set, into position X13, "COND-POS".
e) Call debug screen 0. Is screen 0's Post Dialyzer COND data box reading between 13.0 and 14.5 mS?
Yes See procedure number
No a) Assure the 274
repeat procedure number
b) Return Conductivity cell #13 to distribution board position x13 ("COND-POS").
c) Return the Post-Dialyzer Temperature sensor #44 to position #44 ("NTC-POST").
d) Proceed to page 145, procedure number
Figure 309
connector from the left).
(page 154).
resistor plug, from the two-resistor OLC set, into X44's ("NTC-POST")
CO- 10.1.22
resistor plug is placed properly (at x44) BEFORE continuing! If
th
connector from the left).
CO- 10.3.0
resistor plug is placed properly (at x13) BEFORE continuing! If not,
CO-
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Section 5 – Conductivity/ On Line Clearance Problems
(page 154) check
(page 153).
CO- 10.1.0, part d.
(page 155).
10.1.22, part d (page 153).
CO- 6.0.0.
CO- 10.2.0 (page 154).
Page 153