Fresenius Medical Care 2008K Troubleshooting Manual page 144

CO- 5.0.0 CHECK FOR AIR
a) If removed from a previous procedure CAREFULLY return conductivity cell #7 to distribution board
position labeled "COND" (6
b) Re-check loading pressure. Per
NEVER
dropping below the specified minimum. Watch both levels for two minutes. If (and ONLY if) it
is not 'okay' proceed to page 18, procedure number F- 2.0.4.
c) Referring to the Figure (right), using a flashlight,
check for air bubbles through the clear tubing at
Conductivity cell #7. If (and ONLY if) air is seen
proceed to page 206, procedure number
d) Turn Dialysate flow OFF (Dialysate Flow on/off LED
blinks) and allow one minute for the deaeration
pump to stop (debug screen 1, DEAP =255).
e) Referring to the Figure (right), tee a gauge to the input
of the deaeration pump.
f) Turn Dialysate flow ON (Dialysate Flow on/off LED off).
g) Referring to Appendix A
pressure okay?
Yes See procedure number
No See procedure number
CO- 5.1.0 CALIBRATE DEAERATION PRESSURE
Calibrate DEAERATION AND LOADING PRESSURE per procedure. Is the calibration successful?
Yes a) Place the machine into Dialysis program (remember to press the 'CONFIRM' key).
b) Allow eight minutes. If Conductivity is still unstable see procedure number
142).
No Proceed to page 211,
CO- 5.2.0 CHECK FOR MOTOR NOISE
Call debug screen 3. Is !ECH AND/OR !ACK greater than 3?
Yes Turn the blood pump off then turn the machine off, back on and place it into Dialysis Program.
Check !ECH and !ACK again. If remaining less than 3 replace the blood pump motor. If
continuing to increase check the deaeration and flow motors for excessive carbon build up
and/or bad brushes.
No See procedure number
CO- 5.3.0 FLOW STABILITY CHECK
a) From debug screen 1, if NPHT is less than 300 press and hold the "1" numeric keypad until NPHT is
greater than 600. Ignore an "On Line PHT Failed" message if it occurs.
b) Call the Home screen and NOTE the selected Dialysate Flow rate. ASSURE it is NOT set to "a300",
"a500" or "a800". If Dialysate flow rate is or was changed allow three minutes for stabilization. If Flow
is manually changed remember to press the 'CONFIRM' key.
c) Call debug screen 1 and ASSURE FILACT = 0 constant. If FILACT = 1 there is an air leak!
IMPORTANT!
d) Do NOT reset alarms!
e) Call debug screen 6 and CAREFULLY watch BC Switch for one minute. Referring to
143) is it remaining between the indicated times for the NOTED selected flow rate?
th
position from the left).
Table 21 (page 129), it MUST be fluctuating to its maximum AND
AIR- 1.0.5.
(page 260), is Deaeration
CO- 5.2.0 (page 142).
CO- 5.1.0 (page 142).
SECTION 13 - DEAERATION
CO- 5.3.0 (page 142).
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Section 5 – Conductivity/ On Line Clearance Problems
PROBLEMS.
CO- 5.2.0 (page
Table X (page
Page 142