Fresenius Medical Care 2008T Troubleshoot Manual

2008T Troubleshooting Guide
P/N 490292 Rev. A
Page 267
T- 1.5.3.10 METER STABILITY MAY OR MAY NOT BE MORE THAN TWO
a) Incoming RO water temperature, less than 20.0° C, may cause unstable temperature. In any event,
continue to part b.
b) Return NTC #3’s connector to the
2
nd
distribution board position from the LEFT, “MON-NTC”!
c) If NTC #3 is plugged in properly screen [Temperature] returns to 80° C or more!
d) Press ‘Esc’ then ‘Enter’ twice to call the “Select Program” screen.
e) Return the dialyzer connectors to the shunt door!
f) Return to HEAT DISINFECT.
g) Allow up to thirty (30) minutes! TWO (2) possible scenarios:
1) IF “TEMP OVER 95 DEGREES” alarm DOES NOT reoccur: The problem is not occurring at
this time! DO NOT continue.
2) IF “TEMP OVER 95 DEGREES” reoccurs: As NOTED previously, based on the METER’S
stability, TWO (2) possible scenarios i) or ii) below:
i) IF (and ONLY if) METER stability was MORE than two (2.0): READ before performing!
A) With the machine off, one at a time, swap in the listed components (see Component List A
below), with known good THEN; B) In between, return to page 265, procedure number
T- 1.5.1 until stability is less than two (2) indicating the last component swapped in is the
problem.
COMPONENT LIST A: 1) NTC #2
1
; 2) Sensor Board
2,3
;
3) Functional Board
2,3
1
To LOCATE NTC #2 refer to Figure 42 (page 236)
2
To LOCATE the boards refer to Figure 4A (page 10)
3
Calibrate Temp Sensor AND Temp Control AND Cond Cells BEFORE testing these
components!
ii) IF METER stability was two (2.0) OR LESS: READ before performing! A) With the machine
off, one at a time, swap in the listed components (see Component List B below) with known
good THEN; B) In between, return to page 265, procedure number T- 1.5.1 until “TEMP
OVER 95 DEGREES” DOES NOT occur indicating the last component swapped in was the
problem.
COMPONENT LIST B: 1) NTC #3
1
; 2) Sensor Board
2,3
;
3) Functional Board
2,3
1
To LOCATE NTC #3 refer to Figure 42 (page 236)
2
To LOCATE the boards refer to Figure 4A (page 10)
3
Calibrate Temp Sensor AND Temp Control AND Cond Cells BEFORE testing these
components

Fresenius Medical Care 2008T Specifications

General

Brand	Fresenius Medical Care
Model	2008T
Category	Medical Equipment
Language	English