Fresenius Medical Care 2008K Troubleshooting Manual page 243

BC LEAK- 4.0.0 CHECK FOR RESTRICTED BALANCING CHAMBER VALVE
IMPORTANT!
a) Remove the clamp from valve #29.
b) Return the dialyzer lines to the shunt and place the machine into Dialysis program (remember to press the
'Confirm' key) with fresh concentrate connected.
c) Call the Home screen. Set Dialysate flow to 500 ml/min (NOT "a500) and press the 'CONFIRM' key.
d) Allow five minutes. Is Conductivity greater than 16.5 mS?
Yes Proceed to page 33, procedure number
No See procedure number
BC LEAK- 5.0.0 CHECK FOR A LEAKING BALANCING CHAMBER VALVE
a) Press and release the 'RESET' key and then press and hold it for three seconds. If the "Adjusting TMP"
message is present allow it to expire. If a TMP alarm reoccurs attempt the RESET sequence up to twice
more then continue.
b) Referring to Figure 318
ONLY if) it REMAINS between the 0 and 520 limits AND varies less than +/- 40 mmHg in two minutes.
Proceed accordingly (three scenarios):
1. TMP is UNSTABLE if the 'actual' TMP bar rises ( ), greater than 40, towards the 520 Limit OR
exceeds the 520 Limit causing a "TMP Is High" alarm: See procedure number
(page 241).
2. TMP is UNSTABLE and the 'actual' TMP bar falls ( ), greater than -40, towards the
lower 0 Limit OR falls below the 0 Limit causing a "TMP Is LOW" alarm: See procedure
number BC LEAK- 5.0.1
3. TMP is STABLE: If referred to TESTING FOR A LEAKING BALANCING CHAMBER
DIAPHRAGM, return to the procedure that brought you here.
BC LEAK- 5.0.1 TROUBLESHOOT
NOTE
a) nine leak tests will be performed: 1) IOS; 2) Balancing Chamber Valves #31 through #38. See
SECTION 18A – AUTOMATED VALVE LEAK TESTS
b) If a valve leak is NOT located proceed to page 33, procedure number
BC LEAK- 5.0.0
(page 241), watch the (green or red) 'actual' TMP bar. TMP is STABLE if (and
(page 241).
Figure 318 – TMP Bar Graph
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Section 19 – Testing For A Leaking Balancing Chamber Diaphragm
F- 7.0.2 to check for a restriction.
(page 241).
(page 230).
F- 7.0.2.
BC LEAK- 5.0.1
Page 241