Fresenius Medical Care 4008 S Service Manual

Chapter 7: Error messages
7-10 Fresenius Medical Care 4008 S (Version V10) SM-EN 7/01.13
7.1.12 Negative pressure test (negative pressure holding test)
F04 Temperature The temperature failed to stabilize within 15 minutes.
– Acknowledgement (T_DIAL1, X633L/B16)  X632/A24 is steadily changing
(change > 0.3 °C/15 sec).
F05 Temperature Detuning in positive direction not higher than 3 °C (10 seconds).
– Acknowledgement (T_DIAL1, X633L/B16)  X632/A24 change in voltage
insufficient.
– Detuning (T_DETADJ, X632/A23) X633R/C21 insufficient
F06 Temperature The monitor sensor indicates a constant value.
–NTC-3 defective
F07 Temperature The test release is missing (max. test running time is 10 minutes).
– Run-time problem (software).
F08 Temperature CPU1 failed to transmit a bibag
®
status message within 3 seconds.
– Run-time problem (software).
F09 Temperature bibag
®
NTC_BIB detuning not higher than 1 °C.
– Acknowledgement (NTC_BIB, X633R/C15)  ADW on P.C.B. LP 633-5,
change in voltage insufficient
– Detuning (BIBAG_TE, X634R/A13)  X633R/A20 insufficient
F10 Temperature bibag
®
temperature display outside of measuring range (15 to 45 °C)
– Acknowledgement (NTC_BIB, X633R/C15)  ADW on P.C.B. LP 633-5
F95 Temperature System error
Error message Description
F01 neg. Pressure During the start phase a negative pressure of more than 450 mmHg has
developed (max. test running time 120 seconds).
– The hydraulic system is contaminated,
– the air separation pump started running
F02 neg. Pressure Setting the dialysate pressure to the test pressure (–300 mmHg to –450 mmHg)
was not possible (max. test running time 120 seconds).
Upon repetition of measurement, the range was extended from
–260 mmHg to –490 mmHg.
– Leakage in the hydraulic system
– The UF pump is defective
F03 neg. Pressure The working point (116 digits) of the differential amplifier cannot be set correctly
(max. test running time 120 seconds).
– Pressure variations are too large
– The D-A converter (IC11) on P.C.B. LP 632 is defective
– The operational amplifier (IC1/IC3) on P.C.B. LP 632 is defective
– Acknowledgement (P_DIAL, X633L/B6)  X632/A29 is defective
– CI signal is missing (P.C.B. LP 632  X632/B22).
Error message Description

Fresenius Medical Care 4008 S Specifications

General

Brand	Fresenius Medical Care
Model	4008 S
Category	Medical Equipment
Language	English