Fresenius 4008 Technical manual

4008 E / 4008 B / 4008 H / 4008 S

Hemodialysis system

Technical Manual

Edition: 5/03.09 Part no.: M40 618 1

Software 4.5/5.3 and higher

Fresenius Medical Care

Important information on the Technical Manual

How to use the Technical Manual

Identification	The document can be identified by the following information on the title page and
	on the labels, if any:
	– Edition of the technical document
	– Part number of the technical document
Page identification	The page identification 1-3, for example, refers to: chapter 1, page 3.
Editorial information	The editorial information 1/01.05, for example, refers to the 1st edition, January
	2005.
Changes	Changes to the Technical Manual will be released as new editions or supple-
	ments. In general: This manual is subject to change without notice.
Significance of the	Explanation of the Caution and Note symbols used:

safety precautions

Caution

Advises the operator against certain procedures or actions that could cause damage to the equipment or may have adverse effects on operators and patients.

Note

Informs the operator that if the steps are not followed as described, a specific function will be executed incorrectly or will not be executed at all, or will not produce the desired effect.

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Important information on the system

Technician’s qualification

Purpose	This Technical Manual is intended for service technicians and is to be used for
	first studies (to acquire a basic knowledge) and for reference purposes (for TSC,
	Maintenance and repair). The Technical Manual, however, does not replace the
	training courses offered by the manufacturer.
Requirements	Knowledge of the current Operating Instructions for the respective system.
	Background experience in mechanics, electrical and medical engineering.

Precautions for working on the system

Authorized persons	Assembly, extensions, adjustments, modifications or repairs may only be carried
	out by the manufacturer or persons authorized by him.
Test equipment and	The activities described in this technical document require the availability of the
accessories	necessary technical test equipment and accessories.
Specifications	For the specifications of the respective system, refer to the current Operating
	Instructions. Observe the information on the specifications.
Precautions	Before turning power on, repair any visible damage.
	Prior to opening the system and when working on the open system, the following
	precautions have to be observed:
	– Protect the components against ingress of fluids.
	– Do not touch live parts (e.g. connectors of the power cable or heater).
	– Disconnect and connect all jacks, connectors and components only when the
	system is turned off.
ESD precautions	When repairing the system and replacing spare parts, observe the applicable
	ESD precautions.
Hygienic measures	The system and the consumables are generally considered to be contaminated
	and must therefore be sufficiently disinfected by the responsible organization as
	specified by the manufacturer.

0-2 Fresenius Medical Care 4008 5/03.09 (TM)

Addresses

Please address any inquiries to:

Manufacturer	Fresenius Medical Care AG & Co. KGaA
	D-61346 Bad Homburg
	[phone]
	www.fmc-ag.com
Service	Fresenius Medical Care
Central Europe	Deutschland GmbH
	Geschäftsbereich Zentraleuropa
	Kundendienst / Servicecenter
	Steinmühlstraße 24
	61352 Bad Homburg
	Germany
	Phone: [phone]
	Fax: [phone]
	E-mail: [e-mail]
International	Fresenius Medical Care
service	Deutschland GmbH
	Service Support International
	Hafenstraße 9
	D-97424 Schweinfurt
	Germany
	Phone: [phone] (hotline)
	Fax: [phone]
Local service

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0-4 Fresenius Medical Care 4008 5/03.09 (TM)

Table of contents

Section		Page
1	Description of system functions and malfunctions .................................................	1-
1.1	Description of the T1 test ...............................................................................................	1-3
1.2	Functional description of the modules............................................................................	1-78
1.3	Functional description of the hydraulic unit ....................................................................	1-83
2	Technical Safety Checks / Maintenance ....................................................................	2-

2.1Technical Safety Checks and Maintenance

	for 4008 hemodialysis systems and options ..................................................................	2-3
2.2	TSC report ......................................................................................................................	2-25
3	Adjustment instructions ..............................................................................................	3-
3.1	Overview of the DIP switches in the 4008......................................................................	3-9
3.2	Calibration mode ............................................................................................................	3-13
3.3	Hydraulics .......................................................................................................................	3-15
3.4	Air detector .....................................................................................................................	3-31
4	Calibration program .....................................................................................................	4-
5	Diagnostics program....................................................................................................	5-
5.1	General notes .................................................................................................................	5-3
5.2	Menu structure ................................................................................................................	5-5
5.3	Reading the analog inputs of CPU I ...............................................................................	5-7
5.4	Reading the analog inputs of CPU II ..............................................................................	5-9
5.5	Reading the digital inputs of CPU I ................................................................................	5-10
5.6	Reading the digital inputs of CPU II ...............................................................................	5-15
5.7	Writing the analog outputs of CPU I ...............................................................................	5-19
5.8	Writing the analog outputs of CPU II ..............................................................................	5-20
5.9	Writing the digital outputs of CPU I ................................................................................	5-21
5.10	Writing the digital outputs of CPU II ...............................................................................	5-27
5.11	Writing/Reading the digital outputs of CPU I ..................................................................	5-30
5.12	ONLINEplus™ module .....................................................................................................	5-31
5.13	HPU ................................................................................................................................	5-32
6	Setup menu ...................................................................................................................	6-
6.1	Overview Setup menu settings.......................................................................................	6-3
6.2	Overview .........................................................................................................................	6-7
6.3	Main menu 4008 E/B ......................................................................................................	6-9
6.4	Main menu 4008 H/S ......................................................................................................	6-37
7	Miscellaneous ...............................................................................................................	7-

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Section		Page
8	Circuit diagrams and circuit descriptions .................................................................	8-
8.1	Block diagram 4008 ........................................................................................................	8-3
8.2	Block diagram of voltage supply ....................................................................................	8-4
8.3	Block diagram of screen 4008 H/S .................................................................................	8-5
8.4	Connection layout diagram .............................................................................................	8-6
8.5	P.C.B. LP 450-2 Level detector control (LD) ..................................................................	8-9
8.6	P.C.B. LP 493 Blood leak detector .................................................................................	8-11
8.7	P.C.B. LP 624 Control board (BP) ..................................................................................	8-12
8.8	P.C.B. LP 630 Motherboard ...........................................................................................	8-13
8.9	P.C.B. LP 631 CPU 1 .....................................................................................................	8-14
8.10	P.C.B. LP 632 CPU 2 .....................................................................................................	8-16
8.11	P.C.B. LP 633 Input board .............................................................................................	8-18
8.12	P.C.B. LP 634 Output board ...........................................................................................	8-20
8.13	P.C.B. LP 635 Display board ..........................................................................................	8-22
8.14	P.C.B. LP 636 External connectors ................................................................................	8-24
8.15	P.C.B. LP 950 Control board (HEP) ...............................................................................	8-25
8.16	P.C.B. LP 644-4 Display board (HEP)............................................................................	8-26
8.17	P.C.B. LP 645 Position sensor membrane pump...........................................................	8-27
8.18	P.C.B. LP 649-2 Display board (4008 B/S) ....................................................................	8-28
8.19	P.C.B. LP 742 Interference filter.....................................................................................	8-30
8.20	P.C.B. LP 748 Display board (BP) .................................................................................	8-31
8.21	P.C.B. LP 763 Multi interface board (COMMCO III) ......................................................	8-32
8.22	P.C.B. LP 922 Display board (4008 S) ...........................................................................	8-33
8.23	P.C.B. LP 923 Traffic light (4008 H/S) ...........................................................................	8-34
8.24	P.C.B. LP 924 Display board (4008 H) ..........................................................................	8-35
8.25	P.C.B. LP 941 Hydraulics processor ..............................................................................	8-36
8.26	Heater board (power supply unit 4008) ..........................................................................	8-37
8.27	Power board (power supply unit 4008) ..........................................................................	8-38

0-6 Fresenius Medical Care 4008 5/03.09 (TM)

Table of contents

1 Description of system functions and malfunctions

Section		Page
1.1	Description of the T1 test ............................................................................................	1-3
1.1.1	T1 test flow diagram, serial program steps ....................................................................	1-3
1.1.2	T1 test flow diagram, parallel program steps .................................................................	1-5
1.1.3	Description of the T1 test incl. error messages ..............................................................	1-7
1.1.4	Description of system errors during the cleaning programs ..........................................	1-53
1.1.5	Error messages after turning power on ..........................................................................	1-70
1.1.6	Error messages during dialysis ......................................................................................	1-71
1.2	Functional description of the modules ......................................................................	1-78
1.2.1	Blood pump (arterial) ......................................................................................................	1-78
1.2.2	Blood pump (Single-Needle), optional ...........................................................................	1-79
1.2.3	Heparin pump .................................................................................................................	1-80
1.2.4	Air detector .....................................................................................................................	1-82
1.3	Functional description of the hydraulic unit .............................................................	1-83
	Fig.: Flow diagram ..........................................................................................................	1-83
1.3.1	Description of the hydraulic unit .....................................................................................	1-85
1.3.2	Theory of operation of the balancing chamber ..............................................................	1-87
1.3.3	Central delivery system option .......................................................................................	1-91
1.3.4	Program sequences during the cleaning programs .......................................................	1-92
	Fig.: Flow chart of cleaning programs – overview ..........................................................	1-92

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1-2 Fresenius Medical Care 4008 5/03.09 (TM)

1.1Description of the T1 test

1.1.1T1 test flow diagram, serial program steps

MODULE			TEST
T1			ACCUMULATOR
START T1 TEST			TEST OK	no	STORAGE
			?		ERROR NUMBER
			yes
TEST			TEST
BYPASS			BLOOD LEAK DETECTOR
TEST OK	no	STORAGE	TEST OK	no	STORAGE
?		ERROR NUMBER	?		ERROR NUMBER
yes			yes
TEST			TEST
OPT. DETECTOR			TEMPERATURE
TEST OK	no	STORAGE	TEST OK	no	STORAGE
?		ERROR NUMBER	?		ERROR NUMBER
yes			yes
TEST			NEG. PRESSURE
BLOOD SYSTEM			HOLDING TEST
TEST OK	no	STORAGE	TEST OK	no	STORAGE
?		ERROR NUMBER	?		ERROR NUMBER
yes			yes
TEST			POS. PRESSURE
VENOUS PRESSURE			HOLDING TEST
TEST OK	no	STORAGE	TEST OK	no	STORAGE
?		ERROR NUMBER	?		ERROR NUMBER
yes			yes
TEST			TEST
AIR DETECTOR			UF-FUNCTION
TEST OK	no	STORAGE	TEST OK	no	STORAGE
?		ERROR NUMBER	?		ERROR NUMBER
yes			yes
TEST			TEST
DISPLAY			CONDUCTIVITY
TEST OK	no	STORAGE	TEST OK	no	STORAGE
?		ERROR NUMBER	?		ERROR NUMBER
yes			yes
TEST			Basic hydraulics		Advanced hydraulics
ARTERIAL PRESSURE
			TEST		TEST DIASAFE PLUS /
			DIASAFE/HDF FILTER		ONLINE PLUS /
					HPU TEST
TEST OK	no	STORAGE
?		ERROR NUMBER
yes			TEST OK	no	STORAGE
			?		ERROR NUMBER
			yes
			1

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1
T1 TEST	yes
UNSUCCESSFUL	DIALYSIS START KEY

no

INCORRECT

TEST STEP

RETURN

	TEST OK		no	ERROR
	?			DISPLAY
		yes
	FURTHER		yes	NEXT INCORRECT
	INCORRECT
				TEST STEP
	TEST STEPS
		no
	RETURN

1-4 Fresenius Medical Care 4008 5/03.09 (TM)

1.1.2T1 test flow diagram, parallel program steps

MODULE

T1

START T1 TEST

TEST

TEST

TEST

TEST

TEST

TEST

OPT. DETECTOR

BLOOD SYSTEM

BYPASS

DISPLAY

ACCUMULATOR

ARTERIAL PRESSURE

yes

yes

yes

yes

yes

yes

TEST OK

TEST OK

TEST OK

TEST OK

TEST OK

TEST OK

?

1

?

?

?

1

?

1

?

1

no

no

no

no

no

no

STORAGE

STORAGE

STORAGE

STORAGE

STORAGE

STORAGE

ERROR NUMBER

ERROR NUMBER

ERROR NUMBER

ERROR NUMBER

ERROR NUMBER

ERROR NUMBER

TEST

TEST

VENOUS PRESSURE

TEMPERATURE

yes

yes

TEST OK

TEST OK

??

no

no

STORAGE

STORAGE

ERROR NUMBER

ERROR NUMBER

TEST

NEG. PRESSURE

TEST

AIR DETECTOR

HOLDING TEST

BLOOD LEAK DETECTOR

yes

yes

yes

TEST OK

TEST OK

TEST OK

?

?

?

no

1

no

no

1

STORAGE

STORAGE

STORAGE

ERROR NUMBER

ERROR NUMBER

ERROR NUMBER

POS. PRESSURE

no

yes

TEST

Conductivity?

HOLDING TEST

CONDUCTIVITY

TEST OK

yes

TEST OK

yes

?

?

no

no

STORAGE

STORAGE

ERROR NUMBER

ERROR NUMBER

TEST

TEST

POS. PRESSURE

CONDUCTIVITY

UF-FUNCTION

HOLDING TEST

TEST OK	yes	TEST OK	yes	TEST OK	yes
?		?		?
no		no		no
STORAGE		STORAGE		STORAGE
ERROR NUMBER		ERROR NUMBER		ERROR NUMBER

Basic hydraulics

Advanced hydraulics

TEST

TEST

TEST

TEST DIASAFE PLUS /

DIASAFE/HDF FILTER

UF-FUNCTION

DIASAFE/HDF FILTER

ONLINE PLUS /

yes

HPU-TEST

TEST OK

?

TEST OK

yes

TEST OK

yes

no

?

?

1

no

1

no

1

STORAGE

ERROR NUMBER

STORAGE

STORAGE

ERROR NUMBER

ERROR NUMBER

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1
T1 TEST		yes
UNSUCCESSFUL		DIALYSIS START KEY
	no	INCORRECT
RETURN		TEST STEP
		TEST OK		no	ERROR
		?			DISPLAY
			yes
		FURTHER		no	NEXT INCORRECT
		INCORRECT
					TEST STEP
		TEST STEPS
			yes
		RETURN

1-6 Fresenius Medical Care 4008 5/03.09 (TM)

1.1.3Description of the T1 test incl. error messages

● Prerequisites for starting and running the test

Error message	Description
Power failure	Power failure while the test is in progress
Dialines not conn	The dialysate lines are not in the interlock shunt.
Shunt Cover open	The interlock shunt is open.
Connect Conc.Line
Wrong conc. supply	The concentrate connector is in the rinse chamber, or concen-
	trate is not connected at all. The error message depends on the
	central delivery system preselected in the setup menu.
Blood Sensed by OD	The optical detector senses blood in the system.
Flow alarm	Line to or from the dialyzer kinked, malfunctions in the hydraul-
	ics.
Water alarm	Water supply interrupted.
XXX not calibrated	A valid calibration value is missing in the NOVRAM.

● Overview of the individual test steps
Bypass test .....................................................................................................................	1-8
Optical detector test .......................................................................................................	1-10
Blood system test ...........................................................................................................	1-12
Venous pressure system test .........................................................................................	1-16
Air detector test ..............................................................................................................	1-18
Display test .....................................................................................................................	1-22
Arterial pressure system test ..........................................................................................	1-24
Battery test .....................................................................................................................	1-26
Blood leak test ................................................................................................................	1-28
Temperature test ............................................................................................................	1-30
Negative pressure holding test .......................................................................................	1-32
Positive pressure holding test ........................................................................................	1-34
UF function test ..............................................................................................................	1-39
Conductivity test .............................................................................................................	1-42
Diasafe/HDF filter test ....................................................................................................	1-44
Online plus / Diasafe plus filter / HPU test .....................................................................	1-48

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●Bypass test Test description:

Check of the following functions:

–Heater relay

–Bypass (electric)

–Check of the temperature range changeover

Illustration:

X632/A26 HOT_RINSE

LP 639

(4008E/H)

Power

X639/

A20

Logic

X632/A10

H_REL_W

X639/A12

LP 647

X632/A9

EM_H_OFF

X639/A17

X632/C25

V24_EN

(4008S/B)

X632/C26

V24B_EN

X632/B22

CI

LP 632

X632/A6

V26

CPU 2

X632/A6

V26

X634R/

X632/A5

V24B

X634R/

X632/A4

V24

A18

C22

LP 634

X632/B27

X632/B28

LP 633

Output

X634R/

Input

X634R/

A23

board

C24

board

X631/A20	X631/A21	X634L/A25	X634L/C12	X634L/C25
LP 631
CPU 1	LP 630	DATA BUS
	Mother
	board

LP 635		LP 649
(4008	E)	(4008	B)
	Display
	board
LP 924		LP 922
(4008	H)	(4008	S)

Testgenerierung/Generation of Test

Rueckmeldung/Acknowledgement

V24

V24

V24B

V24B

V26

V26

1-8 Fresenius Medical Care 4008 5/03.09 (TM)

Error description:
Error message	Description
F 01 Bypass	The heater relay is switched off.
	– Acknowledgement (H_REL_W, X639/A12) → X632/A10, 0 V are
	missing.
F 02 Bypass	The heater relay cannot be switched off by CPU2.
	– Acknowledgement (H_REL_W, X639/Y12) → X632/A10, 12 V are
	missing.
	– Control line (EM_H_OFF, X632/A9) → X639/A17, 12 V are missing.
F 03 Bypass	The temperature measurement range is set to hot rinse.
	– Control line (HOTRINSE, X634R/C24) → X639/A20, 0 V are miss-
	ing.
	– Acknowledgement (HOTRINSE, X634R/C24) → X632/A26, 0 V are
	missing.
F 04 Bypass	The extended bypass cannot be correctly switched by CPU2 (V24 = off,
	V26 = on, V24B = off).
	– Acknowledgement (V24, X637/C1) → X632/A4, 24 V are missing.
	– Acknowledgement (V26, X637/C2) → X632/A6, 0 V are missing.
	– Acknowledgement (V24B, X637/C23) → X632/A5, 24 V are miss-
	ing.
F 05 Bypass	The extended bypass cannot be correctly switched off by CPU2 (V24 =
	on, V26 = off, V24B = on).
	– Acknowledgement (V24, X637/C1) → X632/A4, 0 V are missing.
	– Acknowledgement (V26, X637/C2) → X632/A6, 24 V are missing.
	– Acknowledgement (V24B, X637/C23) → X632/A5, 0 V are missing.
F06 Bypass	CPU1 fails to set the temperature control to hot rinse.
	– Control line (HOTRINSE, X634R/C24) → X639/A20, 12 V are miss-
	ing.
	– Acknowledgement (HOTRINSE, X634R/C24) → X632/A26, 12 V
	are missing.
F 07 Bypass	The extended bypass cannot be correctly switched by CPU1 (V24 = off,
	V26 = on, V24B = off).
	– Acknowledgement (V24, X637/C1) → X632/A4, 24 V are missing.
	– Acknowledgement (V26, X637/C2) → X632/A6, 0 V are missing.
	– Acknowledgement (V24B, X637/C23) → X632/A5, 24 V are miss-
	ing.
F08 Bypass	CPU1 fails to reset the temperature control to dialysis.
	– Control line (HOTRINSE, X634R/C24) → X639/A20, 0 V are miss-
	ing.
	– Acknowledgement (HOTRINSE, X634R/C24) → X632/A26, 0 V are
	missing.
F09 Bypass	The extended bypass cannot be correctly switched off by CPU1 (V24 =
	on, V26 = off, V24B = on).
	– Acknowledgement (V24, X637/C1) → X632/A4, 0 V are missing.
	– Acknowledgement (V26, X637/C2) → X632/A6, 24 V are missing.
	– Acknowledgement (V24B, X637/C23) → X632/A5, 0 V are missing.
F95 Bypass	System error

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1-9

●Optical detector test Test description:

Attenuation of the optical detector.

Check of the acknowledgement of the optical detector.

Illustration:

LP 632

X632/C16

LDSA

CPU 2

X632/C15

ODSA

X632/A30

OD_OUT

X633L/C7

LP 633

LP 634

/B27

X632/B28

Input

Output

board

board

		X633L/C8
/A20	X631/A21	IN
LP 631		OD
CPU 1	LP 630	DATA BUS
	Mother
	board

				X351/5					X351/7
LP 635		LP 649			Pven
(4008	E)	(4008	B)							X351/10
	Display
	board
LP 924		LP 922
(4008	H)	(4008	S)

Testgenerierung/Generation of Test

Rueckmeldung/Acknowledgement

1-10	Fresenius Medical Care 4008 5/03.09 (TM)

Error description:
Error message	Description
F01 opt. Detector	CPU1 interprets the optical detector in a different way than does CPU2.
	–	Acknowledgement (OD_OUT, X633L/C7) → X632/A30 and the
		digital input of P.C.B. LP 633 measure different levels.
F02 opt. Detector	CPU2 fails to recognize blood in the system.
	–	Acknowledgement (OD_OUT, X633L/C7) → X632/A30, 0 V are

missing.

– Detuning (ODSA, X632/C15) → X351/7 not 12V.

F03 opt. Detector CPU1 fails to recognize blood in the system.

–Acknowledgement (OD_OUT, X633L/C7) → digital input on P.C.B. LP 633.

–Detuning (ODSA, X632/C15) → X351/7 not 12V.

F04 opt. Detector CPU2 recognizes that the optical detector senses opaque fluid (required because of the test in the cleaning program).

–Acknowledgement X632/A30 not 12V.

–AD28 defective.

F96 opt. Detector

System error.

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1-11

●Blood system test Test description:

Check of the following functions:

–Blood alarm acknowledgement

–Blood pump switch-off

Illustration:

	X632/C10			CLP_CTL
	X632/C14			LDA2
	X632/C21			BL_AL
LP 632				BPSB_VEN
	X632/B11
CPU 2
	X632/A11			BPSB_ART

X632/A15

SN_ART

X634L/

C15

X632/B27

X632/B28

LP 633

X634L/

LP 634

A14

(4008E/H)

Input

A15

Output

board

board

ART

LP 647

_

BPST

(4008S/B)

X633L/

A13

X633L/

X634L/ B15

X634L/

C13

B14

C14

X631/A20

X631/A21

LP 631

LP 630

BPSST_A

CPU 1

DATA BUS

Mother

V

board

BPSST

X348a/2

X348a/6

X348a/3

X348a/1

X348/V6

X348/V3

X348/V1

X351/8

X351/6

LP 635

LP 649

Pven

(4008 E)

(4008 B)

Display

board

LP 924	LP 922
(4008 H)	(4008 S)

Testgenerierung/Generation of Test

Rückmeldung/Acknowledgement

1-12	Fresenius Medical Care 4008 5/03.09 (TM)

Error description:
Error message	Description
F09 Bloodsystem	Acknowledgement that CPU2 recognizes that the arterial blood pump
	is inactive (BP not running).
	– Acknowledgement (BPSB_ART, X348a/6) → X632/A11, 12 V miss-
		ing.
	– Control line (BPSST_ART, X634L/B14) → X348a/1, 12 V missing or
		(BPST_ART, X634L/A14) → X348a/3, 12 V are missing.
F10 Bloodsystem	Acknowledgement that CPU1 recognizes that the arterial blood pump
	is inactive (BP not running).
	– Acknowledgement (BPSB_ART, X348a/6) → X633L/A11, 12 V are
		missing.
	– Control line (BPSTT_ART, X634L/B14) → X348a/1, 12 V missing or
		(BPST_ART, X634L/A14) → X348a/3, 12 V missing.
	– Level is raised during the T1 test.
F11 Bloodsystem	The arterial blood pump cannot be stopped by CPU1.
	CPU2 recognizes that the arterial blood pump remains active.
	– Control line (BPSST_ART, X634L/B14) → X348a/1, 0 V missing,
		as well as (BPST_ART, X634L/A14) → X348a/3, 0 V missing.
	–	Acknowledgement (BPSB_ART, X348a/6) → X632/A11, 0 V are
		missing.
	– The level is raised during the T1 test, or the up/down key on the air
		detector is blocked and the level is constantly raised.
F12 Bloodsystem	The arterial blood pump cannot be stopped by CPU1.
	CPU1 recognizes that the arterial blood pump remains active.
	– Control line (BPSST_A, X634L/B14) → X348a/1, 0 V missing,
		as well as (BPST_ART, X634L/A14) → X348a/3, 0 V missing.
	– Acknowledgement (BPSB_ART, X348a/6) → X633L/A11, 0 V are
		missing.
F13 Bloodsystem	Applicable for SW 4.91/2.91 and higher if SN, ONLINE-HDF or
	4008 HDF pump is connected (= ADKS active)
	Acknowledgement that CPU2 detects that the pump is inactive (pump
	is not running).
	–	Acknowledgement (BPSB_VEN, X348V/6) → X632/ B11, 12V
		missing
	– Control line (BPSST_VEN, X634L/B15) → X348V/1, 12V missing or
		(BPST_VEN, X634L/A15) → X348V/3, 12V missing
	– Transistor T9 on P.C.B. LP 754 defective
	– IC5 on P.C.B. LP 632 defective
	–	In 4008 HDF an HDF treatment was performed, followed by a
		cleaning program with the substituate pump running, then the T1
		test has been re-started.
		The substituate pump must be switched off because otherwise the
		test step will fail to be passed (problem was corrected with SW 3.20
		in 4008 H/S systems: the substituate pump will be switched off
		automatically on starting a cleaning program).

Fresenius Medical Care 4008 5/03.09 (TM)

1-13

F14 Bloodsystem	Applicable for SW 4.91/2.91 and higher if SN, ONLINE-HDF or
	4008 HDF pump is connected (= ADKS active)
	Acknowledgement that CPU1 detects that the pump is inactive (pump
	is not running).
	– Acknowledgement (BPSB_VEN,X348V/6) → X633L/A13, 12V
	missing
	– Control line (BPSST_VEN, X634L/B15) → X348V/1 not 12V or
	(BPST_VEN, X634L/A15) → X348V/3 not 12V
	– IC16 on P.C.B. LP 633 defective
	– P.C.B. LP 633 recognizes Single-Needle pump although it is not
	connected.
F15 Bloodsystem	Applicable for SW 4.91/2.91 and higher if SN, ONLINE-HDF or
	4008 HDF pump is connected (= ADKS active)
	CPU1 fails to stop the corresponding blood pump.
	CPU2 detects that the pump remains active.
	– Control line (BPSST_VEN, X634L/B15) → X348V/1, 0V missing as
	well as (BPST_VEN, X634L/A15) → X348V/3 not 0V
	– Acknowledgement (BPSB_VEN, X348V/6) → X632/B11, 0V miss-
	ing
	– Transistor T9 on P.C.B. LP 754 defective
	– IC5 on P.C.B. LP 632 defective
	– During the test the lines are inserted on the corresponding pump
	using the Start/Stop key.
	– P.C.B. LP 633 recognizes Single-Needle pump although it is not
	connected.
F16 Bloodsystem	Applicable for SW 4.91/2.91 and higher if SN, ONLINE-HDF or
	4008 HDF pump is connected (= ADKS active)
	CPU1 fails to stop the corresponding blood pump.
	CPU1 detects that the pump remains active.
	– Control line (BPSST_VEN, X634L/B15) → X348V/1 not 0V as well
	as (BPST_VEN, X634L/A15) → X348V/3 not 0V
	– Acknowledgement (BPSB_VEN, X348V/6) → X633L/A13 not 0V
	– IC16 on P.C.B. LP 633 defective
	– P.C.B. LP 633 recognizes Single-Needle pump although it is not
	connected.
F17 Bloodsystem	Applicable for SW 4.91/2.91 and higher if SN, ONLINE-HDF or
	4008 HDF pump is connected (= ADKS active)
	Although the recognition of the venous blood pump (ADKS) is not
	acknowledged, the 24-V supply voltage of the pump can be switched
	off.
	– Acknowledgement line (ADKS, X348V/7) → X633L/A10 not 12V
	– Acknowledgement (BPSB_VEN, X348V/6) → X633L/A13 not 12V
	– Acknowledgement (BPSB_VEN, X348V/6) → X632/B11 not 12V
	– Online-HDF has already been switched on during the T1 test.
	– IC16 on P.C.B. LP 633 defective.

1-14	Fresenius Medical Care 4008 5/03.09 (TM)

F18 Bloodsystem Applicable for SW 5.00/4.10 and higher, check of the BPUS signal (CPU, P.C.B. LP 632)

At the beginning of the test step a maximum of 40s may pass until rotation has stopped.If the blood pump is being activated, the rotation stop alarm must have been cleared.

–Acknowledgement line (BPUS, X348A/8) → X632/A13 not 0V

–Acknowledgement line (BPUS, X348A/8) → X632/A13 not 12V

–Blood pump speed is set to “0”: preset speed during the T1 test.

F19 Bloodsystem Applicable for SW 5.00/4.10 and higher, check of the BPUS signal (CPU, P.C.B. LP 631 via LP 633)

At the beginning of the test step a maximum of 40s may pass until rotation has stopped. If the blood pump is being activated, the rotation stop alarm must have been cleared.

1.Acknowledgement line (BPUS, X348A/8) → X633L/A12 not 0V

2.Acknowledgement line (BPUS, X348A/8) → X633L/A12 not 12V

F20 Bloodsystem Check of the actual arterial BP rate.

The actual rate of the arterial BP is not zero. The actual rate of the arterial BP does not increase.

If SN is installed: The actual rate of the venous BP is not zero. The actual rate of the venous BP does not increase.

–Acknowledgement line (BPR_ART, X348A/10) → X633L/B3 not 0V or acknowledgement line (BPR_ART, X348A/10) → X632/A14 not 0V

–Acknowledgement line (BPR_ART, X348A/10) → X633L/B3 no increase or acknowledgement line (BPR_ART, X348A/10) → X632/ A14 no increase

If SN is installed:

–Acknowledgement line (BPR_VHDF, X348V/10) → X633L/B4 not 0V

–Acknowledgement line (BPR_VHDF, X348V/10) → X633L/B4 no increase

F95 Bloodsystem

System error.

Fresenius Medical Care 4008 5/03.09 (TM)

1-15

●Venous pressure system test Test description:

Verification of the lower limit by checking the venous zero point.

The upper limit is tested by detuning the venous pressure unit in positive direction. (The venous line clamp is closed during the test.)

Illustration:

LP 632	X632/C16				LDSA
CPU 2
	X632/C18				PV_DET
	X632/C17				P_VEN

X632/B27 X632/B28

LP 633

LP 634

		Input	Output
		board	board
		X633L/B5	X634R/C18
			V
X631/A20	X631/A21		VENT
LP 631
CPU 1	LP 630	DATA BUS
	Mother
	board

	X351/1	X351/2
LP 635	LP 649	PVEN
(4008 E)	(4008 B)

	Display
	board		X351/4	X351/10
	LP 924	LP 922
	(4008 H)	(4008 S)

Testgenerierung/Generation of Test

Rueckmeldung/Acknowledgement

1-16	Fresenius Medical Care 4008 5/03.09 (TM)

Error description
Error message	Description
F01 Venous	CPU1 (input board) shows a venous zero point deviation of more than
	±12 mmHg (60 s).
	– Control (VENT_VALVE, X634R/C18) → X351/1 of the vent valve in
	the LD is defective.
	– Acknowledgement (P_VEN, X351/4) → X633L/B5 that the voltage
	value is outside the zero point tolerance.
	– P-venous has not been calibrated.
F02 Venous	CPU2 shows a venous zero point deviation of more than ±12 mmHg
	(60 s).
	– Control (VENT_VALVE, X634R/C18) → X351/1 of the vent valve in
	the LD is defective.
	– Acknowledgement (P_VEN, X351/4) → X632/C17, the voltage
	value is outside the zero point tolerance.
	– P-venous has not been calibrated.
F03 Venous	With detuning in positive direction, the achieved change in the venous
	display is less than 100 mmHg (7 s).
	– The test detuning is defective (PV_DET, X632/C18) → X351/2.
	– Acknowledgement (P_VEN, X351/4) → X633L/B5, the change in
	voltage is too low.
	– P-venous has not been calibrated.
F04 Venous	The deviation in the measured value between CPU1 and CPU2 is
	higher than ±12 mmHg (if Pven > 100 mmHg).
	– Acknowledgement (P_VEN, X351/4) → X633L/B5 and X632/C17
	measure different voltage values.
	– P-venous has not been calibrated.
F95 Venous	System error.

Fresenius Medical Care 4008 5/03.09 (TM)

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●Air detector test Test description:

–Test of the air detector by checking the alarm state.

–Switch-off of the venous line clamp in the air detector module.

Illustration:

1-18	Fresenius Medical Care 4008 5/03.09 (TM)

Error description:
Error message	Description
F01 Airdetector	CPU1 interprets the air detector signal in a different way than does
	CPU2.
	– Acknowledgements (LDA1, X351/14) → X632/C13 and X633L/C10
	recognize different signal levels.
F02 Airdetector	The air detector alarm is not recognized by CPU2.
	– Acknowledgement (LDA1, X351/14) → X632/C13, 0 V are missing.
	– Transmission weakening (LDSA, X632/C16) → X351/10, 12 V are
	missing.
F03 Airdetector	Air detector clamps acknowledgement (CPU2) activated (clamp
	closed).
	– Acknowledgement (LDA2, X351/6) → X632/C14, 24 V are missing.
	– Clamp control (CLP_CTL, X634L/C14) → X351/8, 12 V are missing.
	– Clamp control (CLP_CTL, X632/C10) → X351/8, 12 V are missing.
F04 Airdetector	Air detector clamps acknowledgement (CPU1) activated (clamp
	closed).
	– Acknowledgement (LDA2, X351/6) → X633L/C13, 24 V are miss-
	ing.
	– Clamp control (CLP_CTL, X634L/C14) → X351/8, 12 V are missing.
	– Clamp control (CLP_CTL, X632/C10) → X351/8, 12 V are missing.
F05 Airdetector	The blood alarm signal has not been cleared (indicates an alarm).
	– Acknowledgement (BL_AL, X634L/C15) → X632/C21, 12 V are
	missing.
	If the HDF option is used, this signal is not tested (special function).
F06 Airdetector	Closing of the air detector clamp via the CPU2 control line was not
	possible.
	– Clamp control (CLP_CTL, X632/C10) → X351/8, 0 V are missing.
	– Acknowledgement (LDA2, X351/6) → X632/C14, 0 V are missing.
F07 Airdetector	Opening of the air detector clamp via the CPU2 control line was not
	possible.
	– Clamp control (CLP_CTL, X632/C10) → X351/8, 12 V are missing.
	– Acknowledgement (LDA2, X351/6) → X632/C14, 24 V are missing.
F08 Airdetector	Closing of the air detector clamp via the CPU1 control line was not
	possible, or CPU2 acknowledgement is incorrect.
	– Clamp control (CLP_CTL, X634L/C14) → X351/8, 0 V are missing.
	– Acknowledgement (LDA2, X351/6) → X632/C14, 0 V are missing.

Fresenius Medical Care 4008 5/03.09 (TM)

1-19

F09 Airdetector	Closing of the air detector clamp via the CPU1 control line was not
	possible, or CPU1 acknowledgement is incorrect.
	– Clamp control (CLP_CTL, X634L/C14) → X351/8, 0 V are missing.
	– Acknowledgement (LDA2, X351/6) → X633L/C13, 0 V are missing.
F10 Airdetector	The blood alarm message is missing.
	–	Acknowledgement (BL_AL, X634R/C15) → X632/C21, 0 V are
		missing.
		If the HDF option is used, this signal is not tested (special function).
F11 Airdetector	Air detector clamps acknowledgement (CPU2) activated (clamp
	closed).
	– Acknowledgement (LDA2, X351/6) → X632/C14, 24 V are missing.
	– Clamp control (CLP_CTL, X634L/C14) → X351/8, 12 V are missing.
	– Clamp control (CLP_CTL, X632/C10) → X351/8, 12 V are missing.
F12 Airdetector	Air detector clamps acknowledgement (CPU1) activated (clamp
	closed).
	– Acknowledgement (LDA2, X351/6) → X633L/C13, 24 V are miss-
		ing.
	– Clamp control (CLP_CTL, X634L/C14) → X351/8, 12 V are missing.
	– Clamp control (CLP_CTL, X632/C10) → X351/8, 12 V are missing.
F13 Airdetector	The blood alarm signal has not been cleared (indicates alarm).
	–	Acknowledgement (BL_AL, X634L/C15) → X632/C21, 12 V are
		missing.
		If the HDF option is used, this signal is not tested (special function).
F14 Airdetector	Raise level key on the air detector is constantly active.
	– Acknowledgement (LEVEL_UP, X351/3) → X632/C11 not 0V.
F15 Airdetector	Acknowledgement of the supply voltage for the ultrasonic output stage
	not between 6.5 and 13.5 V after 3 seconds.
	– Adapter board AD28 not connected
	–	Acknowledgement (X351/11 → X633L/25A jumper to X633L/B7)
		not 12V.
	– Relay on AD28 failed to drop.
F16 Airdetector	Acknowledgement of the supply voltage for the ultrasound output stage
	not >14.5V after 3 seconds.
	– Adapter board AD28 not connected.
	–	Acknowledgement (X351/11 → X633L/25A jumper to X633L/B7)

not 16V/24V.

– Relay on AD28 is not controlled.

– No 10-Hz signal at ALARM_REST (X351/12)

1-20	Fresenius Medical Care 4008 5/03.09 (TM)

F17 Airdetector	Acknowledgement of the supply voltage for the ultrasound output stage
	not between 6.5 and 13.5 V after 3 seconds.
	– Adapter board AD28 not connected
	– Acknowledgement (X351/11 → X633L/25A jumper to X633L/B7)
	not 12V
	– Relay on AD28 failed to drop
F95 Airdetector	System error.

Fresenius Medical Care 4008 5/03.09 (TM)

1-21

●Display test Test description:

Check of all displays and indicators on the monitor front

–Display test

–Status LED

–Alarm LED

–Seven-segment display, all dark

–Seven-segment display, all 8888

–Bar graph

–CPU1/CPU2 alarm tone

This display test must be monitored by the user!

Illustration:

	LP 632		X632/C29		CPU2_AL
	CPU 2
								X634R/A16
					LP 633			LP 634
					Input			Output
X632/ B27		X632/ B28
					board			board

+LS X634L/A13 -LS X634L/B13

X631/ A20	X631/ A21
LP 631
CPU 1	LP 630	DATA BUS
	Mother
	board

LP 635		LP 649
(4008	E)	(4008	B)
	Display
	board
LP 924		LP 922
(4008	H)	(4008	S)

Test Display

8888

8888

8888

8888

Testgenerierung/Generation of Test

Rueckmeldung/Acknowledgement

1-22	Fresenius Medical Care 4008 5/03.09 (TM)