Fresenius Medical Care 2008K Troubleshooting Manual page 133

CO- 1.0.7 CHECK CONCENTATE INLET
Because air is easier to see than fluid, this procedure introduces a small air bolus to check the pump(s):
a) MOMENTARILY disconnect each concentrate connector from their source.
b) Through the acid/acetate and/or (if using bicarbonate) bicarbonate inlet tubing, is air drawn steadily in
one direction only indicating the concentrate pump(s) are functioning properly?
IMPORTANT!
Yes a)
b) From the Home screen, set Dialysate flow to 800 ml/min then see procedure
number
No See procedure number
CO- 1.0.8 CHECK FLOW STABILITY
a) Open the shunt door and leave it open until instructed otherwise!
b) Referring to the Figure (right), place one of the resistor plugs, from
the four-resistor Temperature set, into the air sensor's distribution
board position labeled "AIR-SEN". Leave the plug installed until
instructed otherwise!
c) Allow 30 seconds thsn call debug screen 1. If the resistor plug
was placed correctly, FILACT = 0 constant.
d) From the Home screen, NOTE the selected Dialysate Flow rate. ASSURE it is
NOT set to "a300", "a500" or "a800". IMPORTANT! If flow rate is or was changed
allow three minutes for stabilization. If Flow is manually changed press
remember to press the 'CONFIRM' key.
e) From debug screen 1, if NPHT is less than 600 press and hold the "1" numeric keypad
until NPHT is greater than 600. Ignore an "On Line PHT Failed" message if it occurs
for now.
IMPORTANT!
f) Do NOT reset alarms!
g) Call debug screen 6 and CAREFULLY watch BC Switch (Balancing Chamber Switching Time) for one
minute. Referring to
selected flow rate?
Yes See procedure number CO- 1.0.9 (page 132).
No a) Call the Home screen and check the selected flow rate. It may have defaulted
to a different rate other than what was noted (idle flow option). If (and only if)
flow rate has changed repeat procedure number
part d.
b) Close the shunt door and proceed to page 14,
DIALYSIS PROGRAM
Table H – BC Switch
If NOTED selected Dialysate Flow rate is
Reconnect to concentrate
CO- 1.0.8 (page 131).
CO- 4.0.0
Table H (page 131) is it remaining between the indicated times for the NOTED
300 ml/min
500 ml/min
800 ml/min
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Section 5 – Conductivity/ On Line Clearance Problems
(page 139).
CO- 1.0.8
SECTION 1 - FLOW ERRORS IN
540 and 660 (5.40 and 6.60 seconds)
324 and 396 (3.24 and 3.96 seconds)
203 and 248 (2.03 and 2.48 seconds)
(page 131) from,
BC Switch:
Page 131