Fresenius Medical Care 2008K2, Руководство по устранению неисправностей

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2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
Page 288
T- 3.0.9 METER TEMPERATURE REACHES 80° C / ISOLATE DISPLAY
ENSURING the meter’s reading maintains at 80° C or more, TWO (2) possible scenarios:
1)
IF (and ONLY if) the screen’s [Temperature] window is 80° C or more: The temperature problem
is no longer occurring!
2)
IF the screen’s [Temperature] window is NOT 80° C or more: See parts a THROUGH h below:
a)
To avoid damage, turn the machine OFF!
b) One of the listed components (see COMPONENT LIST below) may be bad. Swap in one, starting
with NTC #3, then continue through parts b – h to test the new component.
COMPONENT LIST: 1) NTC #3
1
; 2) Sensor Board
2
; 3) Functional Board
2
; 4) Motherboard
1
To LOCATE NTC #3 refer to Figure 42 (page 218)
2
It is necessary to calibrate Temperature Control AND Cond Cells before testing these
components!
c) Return to HEAT DISINFECT without the Temperature meter attached for now.
d)
IMPORTANT!
Allow the screen’s [ Remaining Prerinse Time] window = 0:00 before continuing
to part e!
e) Connect the Temperature meter to the dialysate lines as previously described! NOTE: If necessary
refer to procedures T- 3.0.4 (page 285) AND T- 3.0.5 (page 285).
f) ENSURE the flow indicator’s ‘bob’ is moving up and down in the sight tube!
g) Allow up to thirty five (35) minutes OR until if the meter’s reading achieves 80° C or more before
continuing to part h!
h) Based on the external meter reading, TWO (2) possible scenarios:
1) IF (and ONLY if) the meter does NOT reach 80° C or does NOT maintain at 80° C or
more:
Return to (ABOVE) procedure number T- 3.0.6 (page 286).
2) IF the meter reaches AND maintains 80° C or more, TWO (2) possible scenarios i or ii:
i) IF (and ONLY if) the screen’s [Temperature] display reaches 80° C or more: The new
component fixed the problem!
ii) IF the [Temperature] display does NOT reach 80° C: Repeat procedure number T- 3.0.9
(page 288) parts a THROUGH h until the [Temperature] display does reach 80° C!