Fresenius Medical Care 2008K Troubleshooting Manual page 101

T- 1.1.9 CHECK NTC #3 STABILITY
Allow 30 seconds then watch the machine's Temperature display for one minute. At this point it does not
matter what the reading is. Does it vary greater than +/-
Yes Replace NTC #3 (see
No See procedure number
T- 1.2.0 CHECK TEMPERATURE DISPLAY
Is the machine's Temperature display between 35.5° C and 38.5° C (i.e. within 1.5 °C of the Temperature
setting)?
Yes See procedure
No See procedure number T- 7.0.0 (page 121).
T- 1.2.1 CHECK TEMPERATURE AT OTHER FLOW RATES
Check Temperature stability for other applicable Dialysate flow rates as described below. Read steps a
through f before continuing!
a) From the Home screen, set Dialysate flow to the desired rate then press the 'CONFIRM' key.
b) Re-check loading pressure at each flow rate. If (and ONLY if) it is NOT 'okay' (per
proceed to page 18, procedure number
c) Allow five minutes for stabilization at flows greater than 200 ml/min. If flow is set to 200 ml/min or less
allow 15 minutes.
d) Call debug screen 0 AND while waiting for stabilization, CAREFULLY watch Flow Error. If (and ONLY
if) Flow Error = 1 (intermittently or constant) proceed to page 14,
DIALYSIS PROGRAM
WATER.
e) Call the Home screen if Temperature is not remaining stable between 35.5 and 38.5° C see procedure
number T- 6.0.0 (page 119).
f) Repeat parts a through f for all applicable flow rates. If Temperature remains stable at all flow rates do
NOT continue!
T- 1.2.5 CHECK 'OUT OF BYPASS' FLOW
a) Referring to the Figure (right), CAREFULLY return NTC
#3 and Conductivity cell #7 to their distribution board
positions respectively labeled "MON-NTC" (2
from the left) and "COND" (6
b) Plug the concentrate connectors into their respective
rinse ports.
c) Connect the dialyzer connectors to a calibrated
Temperature meter.
d) Open the shunt door. Referring to the Figure (right),
reach into the opening, under the door, and push down
and hold ALL THREE switches.
e) Activate the screen's RINSE button. If all three
switches are held Rinse program starts.
f) Release the switches but do NOT shut the
door. The "Cover is Open" message presents
but Rinse program continues.
Figure 42, page 94) then see procedure number T- 7.0.0 (page 121).
T- 1.2.0 (page 99).
T- 1.2.1 (page 99).
F- 2.0.4.
.
If a "No Water" message appears proceed to page 64,
nd
th
position from the left).
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
0.2
° C?
SECTION 1 - FLOW ERRORS IN
position
Section 4 – Temperature Problems
Table 15, page 93)
SECTION 2 – NO
Page 99