T- 7.0.0 Isolate Temperature Sensor - Fresenius Medical Care 2008K2 Troubleshooting Manual

T- 7.0.0 ISOLATE TEMPERATURE SENSOR

These are non-routine TROUBLESHOOTING procedures! Follow them exactly to avoid error!
WARNING! Hydraulic alarms are not announced in Service Mode!
A) Figure right, ENSURE distribution board position #4,
"PH-PR", remains VACANT!
B) ENSURE Cond Cell #7 is plugged into distribution board
position "X7, COND"!
C) Figure right, the FOUR-
RESISTOR SET is required.
D) Enter Service Mode → Calibrate
Sensors → Temp Sensor.
E) Proceed to STEP #1 (page 302).
STEP #1
a) The screen should say "Connect a 6.808 K ohm resistor..."
b) Figure right, avoiding VACANT position #4, place the 34°
C (6.808 KΩ) plug into the
from the left, "MON-NTC".
c) Is the screen's [Pre-Temperature Reference] between
64 and 76 (Yes or No)?
Yes Between 64 and 76! 'Sharply' press 'CONFIRM'. If no Error banners
(page 302).
1
If an "Operator Error" OR
"Actuator Board Error"
banner appears proceed
page 303
to
No NOT between 64 and 76! ENSURE the 34° C plug is placed properly at the
left! If okay, see procedure number
STEP #2
a) The screen should say "Connect a 5.117 K ohm resistor...".
b) Place the 41° C (5.117 KΩ) plug into the
Temperature Reference] between 157 and 169?
Yes Between 157 and 169! 'Sharply' press 'CONFIRM' then see STEP #3 (page 303).
No NOT between 157 and 169! ENSURE the 41° C plug is placed properly at the
the left! If okay, see procedure number
nd
2
distribution board position
, procedure number T- 7.1.0.
T- 7.1.0
nd
2
distribution board position from the left. Is [Pre-
T- 7.1.0
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
(page 303).
(page 303).
1
appear see STEP #2
nd
2
position from the
nd
2
position from
Page 302