Fresenius Medical Care 2008K Troubleshooting Manual page 153

Yes See procedure number
No Accurately perform ACID and/or BICARBONATE PUMP CALIBRATION per procedure.
IMPORTANT! Assure the concentrate inlet tubing is fully primed. Longer tubing
requires extended priming! If (and ONLY if) a pump won't calibrate see procedure number
CO- 4.1.0
CO- 8.0.7 CHECK BALANCING CHAMBER DIAPHRAGMS
NOTE this page and procedure number in case you need to return here:
a) Proceed to page 238,
DIAPHRAGM.
b) Place the machine into Dialysis program (remember to press the 'CONFIRM' key) then see procedure
number CO- 8.0.8 (page 151).
CO- 8.0.8 VERIFY BALANCING CHAMBER VOLUMES
A dry 100 ml graduated cylinder (preferably glass) is required. Caution! Using a larger cylinder WILL
result in gross error! If a calibrated scale is available use it!
a) Remove the tubing from 'To Drain' (*BOTTOM!) nozzle
at the rear of the machine to expose the drain nozzle.
*CAUTION! Do NOT remove the top tubing!
b) Turn Dialysate flow ON (Dialysate Flow on/off LED off)
and allow 10 pulses to assure flow stability.
c) Without turning flow off, VERY accurately, collect two
consecutive drain pulses into the 100 ml cylinder. Read
the bottom of the meniscus curve (see Figure right).
d) Two measurements are HIGHLY recommended to assure accuracy! Dry the cylinder in between!
e) Reconnect the drain tubing.
f) Call debug screen 3. BCV (upper right, Balancing Chamber Volume) was entered during the last
calibration. It indicates the volume of both balancing chambers.
g) Does BCV AND the ACCURATELY measured volume times (x) 10 match?
Yes See procedure number
No Perform BALANCING CHAMBER VOLUME CALIBRATION and enter your ACCURATELY
measured volume.
CO- 8.2.0 CHECK FOR LEAKING HEAT EXCHANGER
IMPORTANT!
a) Turn Dialysate flow OFF (Dialysate Flow on/off LED blinks).
b) Referring to Figure 62
nozzle.
c) Watch for one minute. Is water continually dripping from the heat exchanger's nozzle?
Yes Replace heat exchanger's plate (P/N 650775).
No a) Return the tubing to the heat exchanger.
b) Turn Dialysate Flow ON (Dialysate Flow on/off LED off).
c) See procedure number
CO- 8.0.7
(page 139).
SECTION 19 - TESTING FOR A LEAKING BALANCING CHAMBER
CO- 8.2.0 (page 151).
(page 152) remove the front clear tubing (to drain) from the heat exchanger's
CO- 5.0.0
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Section 5 – Conductivity/ On Line Clearance Problems
(page 151).
(page 142).
Page 151