Fresenius Medical Care 2008K2, Руководство по устранению неисправностей

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2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
Page 241
T- 1.3.40 ISOLATE TEMPERATURE CONTROL
a) Figure right, place the
90° C
(0.915 KΩ)
plug, from the
FOUR-RESISTOR
SET
into the
1
st
distribution board
position from the left, “CON-NTC”.
b)
Set your CALIBRATED volt meter to AC
voltage (~ V, V
AC
)!
c)
Turn the HEATER Switch ON!
d) Figure right, measure at the distribution board’s Heater
Connector, between the BLUE and BROWN wires. TWO
(2) possible scenarios:
1)
IF (and ONLY if) 100.0 volts AC or more: Leaving
the 90° C plug installed, proceed to
page 289
,
procedure number T- 4.0.0 .
2)
IF LESS THAN 10.0 volts AC: ENSURING the HEATER Switch was on AND the meter was set to
AC voltage
prior to measuring, see procedure number T- 1.3.60 (page 241).
T- 1.3.60 ISOLATE NTC #2
a) Call the Home screen to see the machine’s [ Temperature ] display.
b) Remove the 90 o C plug from distribution board position, “CON-NTC”.
c) LEAVING “CON-NTC” VACANT, allow [ Temperature ] to increase to more than 38.0° C BEFORE
continuing to part d!
d)
Turn [Dialysate Flow] OFF (Dialysate Flow
on/off lamp blinks)!
e) Figure right, avoiding VACANT position #4, plug NTC
#2’s connector, into NTC #3’s position,
2
nd
position from
left (“MON-NTC”). Leave NTC #3 unplugged!
f) Call debug screen 4 to see TEMP (lower
left). TWO (2) possible scenarios:
1) IF (and ONLY if) TEMP is more than 3.0: See procedure number T- 1.3.70 (page 242).
2) IF TEMP is less than 3.0: See parts A and B below:
A) Replace NTC #2* with a known good. *To LOCATE NTC #2 refer to Figure 42 (page 218).
B) See procedure number T- 1.3.70 (page 242).