Fresenius MultiFiltrate Service manual

multiFiltrate

Service Manual

Technical Manual

Edition: 6/03.07

Part no. M28 003 1

Table of Contents

1 Important Information

1.1 Organization of the Technical Manual ..................................................................................... 1-1

1.2 How to Use the Technical Manual............................................................................................ 1-2

1.3 Precautions for Working on the System ................................................................................. 1-3

1.4 Addresses .................................................................................................................................. 1-4

2 Functional Description

2.1 Extracorporeal Circuit............................................................................................................... 2-1

2.1.1 Pumps ......................................................................................................................................... 2-1

2.1.2 Heaters ........................................................................................................................................ 2-2

2.1.3 Pressure Transducer ................................................................................................................... 2-2

2.1.4 Air Detector and Venous Clamp .................................................................................................. 2-2

2.1.5 Optical Detector (Non-Opaque/Opaque Fluid Detector).............................................................. 2-3

2.1.6 Blood Leak Detector .................................................................................................................... 2-3

2.1.7 Heparin Pump.............................................................................................................................. 2-3

2.2 Weighing Units .......................................................................................................................... 2-3

2.3 Ci-Ca Module (Option)............................................................................................................... 2-4

2.4 Functional Test (T1 Test) and Error Messages....................................................................... 2-4

2.4.1 Battery Test, Part 1...................................................................................................................... 2-5

2.4.2 Scales Test .................................................................................................................................. 2-5

2.4.3 Pump Test ................................................................................................................................... 2-6

2.4.4 Pressure Transducer ................................................................................................................... 2-8

2.4.5 Optical Detector........................................................................................................................... 2-9

2.4.6 Air Detector................................................................................................................................ 2-10

2.4.7 Blood Leak Detector .................................................................................................................. 2-11

2.4.8 Heater ........................................................................................................................................ 2-12

2.4.9 Battery Test, Part 2.................................................................................................................... 2-15

2.4.10 Audible Alarm ............................................................................................................................ 2-16

2.4.11 Heparin Pump ............................................................................................................................ 2-17

2.4.12 multiDataLink............................................................................................................................. 2-18

2.4.13 Ci-Ca Module (Option)............................................................................................................... 2-18

2.5 Error Messages........................................................................................................................ 2-20

2.5.1 Alarm Messages........................................................................................................................ 2-20

2.5.2 Warning Messages.................................................................................................................... 2-22

2.5.3 Fatal Errors ................................................................................................................................ 2-30

2.5.4 Error Codes of Scales Lo-Level Routines ............................................................................... 2-33

2.5.5 Error Codes of Pressures Lo-Level Routines.......................................................................... 2-35

2.5.6 Error Codes of Heparin Pump Lo-Level Routines................................................................... 2-36

2.5.7 Error Codes of Pumps Lo-Level Routines............................................................................... 2-37

2.6 Overview of Display Identification Numbers ........................................................................ 2-37

Fresenius Medical Care multiFiltrate TM 6/03.07 0-1

3 Installation

3.1 Preface........................................................................................................................................ 3-1

3.2 Important Information on Initial Start-Up ................................................................................ 3-2

3.3 Initial Start-Up Report multiFiltrate.......................................................................................... 3-3

3.4 Explanations on the Initial Start-Up Report ............................................................................ 3-8

3.5 Installing the Ci-Ca Module (Option)...................................................................................... 3-16

4 TSC / TMC / Maintenance

4.1 Important Information Regarding the Procedure ................................................................... 4-1

4.2 TSC / MA Report multiFiltrate................................................................................................... 4-2

4.3 multiFiltrate TSC Report ........................................................................................................... 4-8

4.4 Explanations on the TSC / MA Report ................................................................................... 4-12

5 Adjustment Instructions and Tests

5.1 Service Tools ............................................................................................................................. 5-1

5.2 Service Program ........................................................................................................................ 5-2

5.2.1 Start ............................................................................................................................................. 5-2

5.2.2 Selecting the Language ............................................................................................................... 5-3

5.2.3 System Messages ....................................................................................................................... 5-3

5.2.4 Deactivating and Activating the Heparin Pump ........................................................................... 5-3

5.2.5 Filtrate Bag Monitoring Limit ........................................................................................................ 5-4

5.2.6 Dialysate Tubing Arrangement .................................................................................................... 5-4

5.2.7 Option MultiDataLink (mDL) ........................................................................................................ 5-5

5.2.8 Taring and Calibrating the Scales................................................................................................ 5-7

5.2.9 Calibrating the Pressures ............................................................................................................ 5-8

5.2.10 Calibrating the Blood Leak Detector .......................................................................................... 5-10

5.2.11 Verifying the System Values...................................................................................................... 5-11

5.2.12 Events Memory.......................................................................................................................... 5-13

5.2.13 Program Treatment Modes........................................................................................................ 5-15

5.2.14 Programming the Ci-Ca Data (Option) ...................................................................................... 5-16

5.3 Extracorporeal Components .................................................................................................. 5-17

5.3.1 Tightness of the Venous Occlusion Clamp................................................................................ 5-17

5.3.2 Checking the Pressure Transducers ......................................................................................... 5-17

5.3.3 Venous Pressure Transducer (P.C.B. LP 450-3)....................................................................... 5-18

5.3.4 Air Detector (P.C.B. LP 450-3) .................................................................................................. 5-20

5.3.5 Optical Detector Sensing Opaque / Non-Opaque Fluid (P.C.B. LP 450-3) ............................... 5-21

5.3.6 Arterial / Filtrate / PHF Pressure Transducers (P.C.B. LP 343-1) ............................................. 5-21

5.3.7 Blood Leak Detector .................................................................................................................. 5-22

5.3.8 Setting the Heparin Pump.......................................................................................................... 5-23

5.4 Programming the Processors ................................................................................................ 5-25

5.4.1 Display Processor (DP) ............................................................................................................. 5-26

5.4.2 Operating and Safety Processors (OP and SP) ........................................................................ 5-26

5.4.3 Interchangeability of Safety and Operating Processor .............................................................. 5-30

5.5 Ci-Ca Module (Option) ............................................................................................................. 5-31

0-2 Fresenius Medical Care multiFiltrate TM 6/03.07

5.5.1 Preparing the Functional Test ................................................................................................... 5-31

5.5.2 Functional Test of the Drip Counter........................................................................................... 5-32

5.5.3 Functional Test of the Hall Sensor ............................................................................................ 5-32

5.5.4 Functional Test of the Insertion Switch...................................................................................... 5-32

5.5.5 Functional Test of the Line Occlusion ....................................................................................... 5-33

6 PC Service Software MFT

6.1 Organization of the Quick Guide.............................................................................................. 6-1

6.2 General Information .................................................................................................................. 6-1

6.3 Preparation................................................................................................................................. 6-1

6.3.1 System Requirements ................................................................................................................. 6-1

6.3.2 Software Installation .................................................................................................................... 6-2

6.3.3 Hardware Installation................................................................................................................... 6-3

6.3.4 ServiceCard Description .............................................................................................................. 6-3

6.3.5 Starting the Software ................................................................................................................... 6-3

7 Block Diagrams and Component Layouts

7.1 Block Diagram ........................................................................................................................... 7-2

7.2 AC Wiring ................................................................................................................................... 7-3

7.3 P.C.B. LP 122 Heater Control ................................................................................................... 7-4

7.3.1 Block Diagram ............................................................................................................................. 7-4

7.3.2 Description................................................................................................................................... 7-4

7.3.3 Component Layout ...................................................................................................................... 7-5

7.4 P.C.B. LP 123 Pump Control..................................................................................................... 7-6

7.4.1 Description................................................................................................................................... 7-6

7.4.2 Component Layout ...................................................................................................................... 7-7

7.5 P.C.B. LP 124 Motherboard ...................................................................................................... 7-8

7.5.1 Description................................................................................................................................... 7-8

7.5.2 Component Layout ...................................................................................................................... 7-9

7.6 P.C.B. LP 125 Blood Leak Detector ....................................................................................... 7-10

7.6.1 Component Layout .................................................................................................................... 7-10

7.7 P.C.B. LP 127 Scales Board.................................................................................................... 7-11

7.7.1 Description................................................................................................................................. 7-11

7.7.2 Component Layout .................................................................................................................... 7-11

7.8 P.C.B. LP 128, Power Supply Unit.......................................................................................... 7-12

7.8.1 Block Diagram ........................................................................................................................... 7-12

7.8.2 Description................................................................................................................................. 7-12

7.8.3 Component Layout .................................................................................................................... 7-13

7.9 P.C.B. LP 129 User Interface .................................................................................................. 7-14

7.9.1 Component Layout .................................................................................................................... 7-14

7.10 P.C.B. LP 244 Operating and Safety Processors.................................................................. 7-15

7.10.1 Block Diagram ........................................................................................................................... 7-15

7.10.2 Jumper Description.................................................................................................................... 7-15

7.10.3 Component Layout .................................................................................................................... 7-17

Fresenius Medical Care multiFiltrate TM 6/03.07 0-3

7.11 P.C.B LP 343-4 Pressure Transducer .................................................................................... 7-18

7.11.1 Component Layout .................................................................................................................... 7-18

7.12 P.C.B. LP 450-3 multiFiltrate Air Detector Control ............................................................... 7-19

7.12.1 Component Layout .................................................................................................................... 7-19

7.13 P.C.B. LP 950, Control Board (Heparin Pump)...................................................................... 7-20

7.13.1 Component Layout .................................................................................................................... 7-20

7.14 Ci-Ca Module............................................................................................................................ 7-21

7.14.1 Block Diagram ........................................................................................................................... 7-21

7.14.2 Component Layout (P.C.B. LP MS 0407) .................................................................................. 7-22

0-4 Fresenius Medical Care multiFiltrate TM 6/03.07

1 Important Information

1.1 Organization of the Technical Manual

Page identification Page number 1-3 is to be interpreted as: Chapter 1, page 3.

Editorial information The current edition of this Technical Manual is

6/03.07 = 5th edition, September 2006

In case of updates, the chapters concerned will be replaced.

Refer to the table below to verify that the Technical Manual is up-to­date.

Chapter Current version

1 6/03.07

2 6/03.07

3 6/03.07

4 6/03.07

5 6/03.07

6 6/03.07

7 6/03.07

Chapter 1: Important Information

Changes Manual changes will be released as new editions and supplements. In

general - subject to change without notice.

Fresenius Medical Care multiFiltrate TM 6/03.07 1-1

Chapter 1: Important Information

1.2 How to Use the Technical Manual

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.

Specifications For the specifications of the respective system, refer to the current

Operating Instructions.

Circuit diagrams and
component layouts

Explanation of the Note
and Caution symbols used

The identification on the PCB permits the operator/technician to verify if
the circuit diagram/component layout matches the PCB actually
installed in the system.

Note

Informs the operator that in case of a failure to follow the steps as
described, a specific function will be executed incorrectly or will not be
executed at all, or will not produce the desired effect.

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.

1-2 Fresenius Medical Care multiFiltrate TM 6/03.07

1.3 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.

Chapter 1: Important Information

Test equipment and
accessories

Precautions When working on the open system, the following precautions must be

ESD precautions When repairing and when replacing spare parts, observe the applicable

The activities described in the Technical Manual require the availability
of the necessary technical test equipment and accessories.

respected:
 Protect the components against ingress of fluids.
 Do not touch live parts.
 All plugs, connections and components may only be disconnected or

connected if de-energized.

ESD precautions (e.g. EN 100 015-1).

Fresenius Medical Care multiFiltrate TM 6/03.07 1-3

Chapter 1: Important Information

1.4 Addresses

Manufacturer Fresenius Medical Care AG & Co. KGaA

Please address any inquiries to:

D-61346 Bad Homburg
Germany
+49 (0)6172/609-0
www.fmc-ag.com

Service
Central Europe

International
service

Local service

Fresenius Medical Care
Deutschland GmbH
Geschäftsbereich Zentraleuropa
Kundendienst / Servicecenter
Steinmühlstrasse 24b
61352 Bad Homburg
Germany
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]

Fresenius Medical Care
Deutschland GmbH
Service Support International
Hafenstrasse 9
D-97424 Schweinfurt
Germany
Phone: [phone] (hotline)
Fax: [phone]

1-4 Fresenius Medical Care multiFiltrate TM 6/03.07

2 Functional Description

2.1 Extracorporeal Circuit

The elements for maintaining and monitoring the extracorporeal circuit
of the multiFiltrate are as follows:

 Pumps

 Heaters

 Pressure transducer

 Air detector

 Venous clamp

 Non-opaque/opaque fluid detector

 Blood leak detector

 Heparin pump

Chapter 2: Functional Description

2.1.1 Pumps

Altogether, the multiFiltrate is provided with four pumps:

Pump Delivery rate

Blood pump 10  500 ml/min

Filtrate pump 10  180 ml/min

Substituate pump 10  170 ml/min

Dialysate pump 10  170 ml/min

The pumps are driven by direct-current geared motors. To control the
speed, these motors are each provided with a clock pulse generator,
which is directly connected to the motor shaft. The pump processors for
controlling the individual pumps (P.C.B. LP 123) are fitted on the motor
housing.

All pumps are supplied with 24 V. The nominal voltage of the blood
pump motor is 20 V. The nominal voltage of the other pumps, however,
is 24 V.

A Hall sensor in the pump housing and a permanent magnet in each
pump door monitor the state of the pump door.

The line inserting position of the pump rotors for inserting and removing
the pump segments is detected by a combination of a reed switch (in
the pump housing) and a permanent magnet (in the rotor).

The functional test covers a check of all pumps.

Fresenius Medical Care multiFiltrate TM 6/03.07 2-1

Chapter 2: Functional Description

2.1.2 Heaters

2.1.3 Pressure Transducer

To allow heating of replacement fluids, two heaters, which are activated
and monitored independently of each other, are installed in the
multiFiltrate.

The heater foil is applied to the outside of the heater rod and supplied
with approx. 28 V. The temperatures are controlled and monitored by
altogether four NTC sensors (two for the operating processor and two
for the safety processor). This is implemented on P.C.B. LP 122.

Both heaters are tested during the functional test.

Four pressures are measured at the multiFiltrate:

 Arterial pressure,

Measuring transducer (P.C.B. LP 343-1) between the patients
arterial access and the blood pump
Measuring range: 280  300 mmHg

 Pre-hemofilter pressure

Measuring transducer (P.C.B. LP 343-1) between the blood pump
and the filter inlet
Measuring range: 0  750 mmHg

 Venous pressure,

Measuring transducer (P.C.B. LP 450-3) between the filter outlet
and the patients venous access,
Measuring range: 80  500 mmHg.

 Filtrate pressure or dialysate pressure

Measuring transducer (P.C.B. LP 343-1) between the filter
connector and the filtrate pump
Measuring range: 300  300mmHg.

All pressure transducers are subjected to the functional tests.

2.1.4 Air Detector and Venous Clamp

The air detector (P.C.B. LP 450-3) serves for the detection of air in the
extracorporeal blood circuit and operates on the ultrasound principle .
Both the transmitter and the receiver are integrated in the drip chamber
holder. Once the level in the venous drip chamber has fallen below a
certain threshold, the venous clamp is closed. This function is executed
independently of the operating or safety processor. The additional
board AD 28 increases the transmitter voltage during Preparation to
ensure that the level of saline solution is reliably detected.

The air detector is subjected to the functional test.

2-2 Fresenius Medical Care multiFiltrate TM 6/03.07

2.1.5 Optical Detector (Non-Opaque/Opaque Fluid Detector)

The optical detector (P.C.B. LP 450-3) detects, according to the infrared
principle, whether saline solution or blood is present in the tubing
system.

The optical detector is subjected to the functional test.

2.1.6 Blood Leak Detector

The blood leak detector (P.C.B. LP 125) is provided for the detection of
a potential blood loss through the membrane. It is operated applying a
two-color measuring section. In the course of this, red and green light is
alternately transmitted to a reference receiver or, through the filtrate
line, to a measuring receiver.

Both the transmitter and the receiver are integrated in the line holder.

The blood leak detector is subjected to the functional test.

2.1.7 Heparin Pump

Chapter 2: Functional Description

2.2 Weighing Units

The heparin pump is used for continuous heparinization of the blood.

A syringe plunger is moved by means of a carriage bar. The carriage
bar is connected to a threaded spindle via a slide. A microprocessor­controlled stepper motor causes the spindle to rotate. Depending on the
activation, the piston will move up or down.

One Hall sensor each signals when the piston has reached its upper
and lower end of travel. The safety system of the pump comprises a
speed monitoring device (slotted disc with optical sensor) and a motor
current monitoring function. The syringe types are set via a coding
switch (HEX switch).

The weighing units are used for managing the fluid balance during
treatment.

The weighing cells are operated according to the strain gauge principle.
Signal conditioning, including analog-to-digital conversion, is achieved
per weighing cell on the P.C.B. LP 127. The actual weights are
produced by the operating processor.

Scale 1 and scale 2 each have a useful load of approx. 12 kg.

The scales are subjected to the functional test. To test the scales, a test
weight (ball) of defined value must be taken off each scale. Proper
functioning of the scales can be concluded from the correct difference
between the weights before and after lifting.

Fresenius Medical Care multiFiltrate TM 6/03.07 2-3

Chapter 2: Functional Description

2.3 Ci-Ca Module (Option)

The Ci-Ca module is intended for regional citrate anticoagulation in the
CVVHD treatment therapy.

Turning power on The Ci-Ca module requires a supply voltage of 24VDC. This voltage is

provided by the multiFiltrate system's power supply unit via the
connector in the lower IV pole support of the IV pole located on the right
of the system.
After the multiFiltrate system was turned on by pressing the power
switch on its rear, the supply voltage of the module is connected. The
operating processor of the Ci-Ca module switches into the standby
mode.
If the multiFiltrate systems is then turned on via the I/O key on the front
of the system, the operating processor of the Ci-Ca module will perform
an internal processor test. This test is performed simultaneously to the
processor test of the multiFiltrate system.

The Ci-Ca module communicates with the multiFiltrate basic system via
a serial interface.

Processor test If a test is not passed successfully, the module will not establish

communications with the multiFiltrate system. It is not possible to
perform a treatment with citrate anticoagulation. The multiFiltrate
system recognizes this problem and displays a message which
proposes to use an alternative anticoagulation equipment (e.g. heparin
pump) and which has to be confirmed by the operator.

T1 test The Ci-Ca module performs its own T1 test, independent of the T1 test

of the multiFiltrate system. This test will be started automatically and
simultaneously to the multiFiltrate T1 test after the prompt whether the
starting conditions are met was confirmed with [OK].

This test cannot be skipped or deselected.

System errors If it is still possible, system errors in the Ci-Ca module are shown on the

multiFiltrate display with the indication that citrate anticoagulation is not
available.

2.4 Functional Test (T1 Test) and Error Messages

After it has been turned on the rear and the [I/O] key has been pressed,
the system automatically starts the processor test. After completion of
the processor test, the display test will be performed. In this test, the
numerical characters are represented for 2 seconds in all of the three
fonts used. After this test, the functional test (T1 test) is started
automatically. Depending on the configuration in the SETUP (SETUP
automatic), the test is running in the background or (SETUP detailed)
the test steps are represented separately on the display.

2-4 Fresenius Medical Care multiFiltrate TM 6/03.07

Chapter 2: Functional Description

2.4.1 Battery Test, Part 1

At the beginning of the T1 test, the system assumes the terminal voltage
and loads the battery with a defined resistance over the entire test.

2.4.2 Scales Test

In the first step, the temperature compensation and calibration factors
are tested. In the second step, the scales are tared. The linearity test
follows in step three. The 4 test weights are lifted, and the weight (44.3
g) is tested for a tolerance of ±0.5 g. The offset drift is tested in step four.
The test weights are lowered again; the system expects a weight of 0.0
g with a tolerance of ±0.5 g. The time out for each step (2 to 4) is 10 sec.
In the event of an error, messages are emitted. Here, the error
messages section only relates to scales I. The messages are identical
for scales II to IV.

Error message Causes Action required

Scale I

Cal. factor missing, error.
Acknowledge with
[START/RESET] key.

Scale I

Temp. coeff. factors missing, error.
Acknowledge with
[START/RESET] key.

Scale I

Movement detected on Scale I.
Acknowledge with
[START/RESET] key.

Lithium battery on P.C.B. LP 244­OP discharged.

Defect of the EPROM on P.C.B.
LP 127 of the scales specified.

The system is not in a stable
position. The scales are subjected
to a draft. Bags with tubing system
are placed on the scales; this is
especially applicable to filtrate
scales.

The +12 V and/or 12 V voltage(s)
is (are) missing.

Scales mechanics not smooth. Check for smoothness and adjust,

Replace the battery and execute
the calibration step in the Service
program.

Replace the P.C.B. and the
weighing bar and execute the
calibration step in the Service
program.

Set up the system in a stable
position. Remove the system from
the draft, or close the window.
Relieve the scales.

Check the fuses on the PSU board
LP 128 and replace the P.C.B.
LP 128, if necessary.

Caution: All pressures must be
checked and calibrated, if
necessary.

if necessary. Weight check in the
Service program.

Connector not fitted or defective
ribbon cable.

P.C.B. LP 244-OP defective. Replace P.C.B. LP 244-OP.

Fresenius Medical Care multiFiltrate TM 6/03.07 2-5

Fit the connector to the
motherboard and/or to the P.C.B.
LP 127. Replace the ribbon cable.

Caution: All scales and pressures
must be calibrated.

Chapter 2: Functional Description

Error message Causes Action required

Scale I

Test weight outside tolerance.
Acknowledge with
[START/RESET] key.

Scale I

Zero offset outside tolerance.
Acknowledge with
[START/RESET] key.

The system is not in a stable
position. The scales are subjected
to a draft. Bags with tubing system
are placed on the scales; this is
especially applicable to filtrate
scales.

Lifting magnet for ball not
connected or defective.

Ball mechanics not smooth. Check for smoothness and adjust,

The system is not in a stable
position. The scales are subjected
to a draft. Bags with tubing system
are placed on the scales; this is
especially applicable to filtrate
scales.

Scales mechanics not smooth. Check for smoothness and adjust,

Test weight fails to drop back. Ball
mechanics not smooth.

Set up the system in a stable
position. Remove the system from
the draft, or close the window.
Relieve the scales.

Fit the connector to the
motherboard. If defective, the lifting
magnet must be replaced.

if necessary. Weight check in the
Service program.

Set up the system in a stable
position. Remove the system from
the draft, or close the window.
Relieve the scales.

if necessary. Weight check in the
Service program.

Check for smoothness and adjust,
if necessary. Weight check in the
Service program (ESC Service).

2.4.3 Pump Test

In the first step, the stop-by-OP function is tested, i.e. the pumps must
stop running. In this step, the safety processor releases the pumps, and
the operating processor does not activate the pumps. In the second
step, all of the four pumps are activated with a rate of 100 ml/min. The
safety processor checks whether the pumps are running at the correct
rate and whether the reed contact (line inserting position) is actuated. In
the third step, the operating processor activates the pumps and the
safety processor disables the pump activation, i.e. the pumps may not
be running. In the event of an error, messages are emitted. Here, the
error messages section only relates to the blood pump. The messages
are identical for the other pumps, i.e. the filtrate, substituate and
dialysate pumps.

2-6 Fresenius Medical Care multiFiltrate TM 6/03.07

Chapter 2: Functional Description

Error message Causes Action required

Blood pump

Blood pump door open.
Acknowledge with
[START/RESET] key.

Blood pump

Not stopped by operating
processor.
Acknowledge with
[START/RESET] key.

Blood pump

Wrong speed, rate.
Acknowledge with
[START/RESET] key.

Blood pump door open. Close the blood pump door.

Magnet in blood pump door
missing.

Hall sensor in pump housing not
connected or defective.

Control electronics (P.C.B. LP 123)
of the specified pump defective.

P.C.B. LP 244-SR defective. Replace P.C.B. LP 244-SR.

Control electronics (P.C.B. LP 123)
of the specified pump defective.

P.C.B. LP 244-SR defective. Replace P.C.B. LP 244-SR.

Clock pulse generator of motor on
P.C.B. LP 123 not connected.

Control electronics (P.C.B. LP 123)
of the specified pump defective.

Replace the blood pump door.

Plug the connector onto the
appropriate P.C.B. LP 123 or
replace the pump housing.

Replace P.C.B. LP 123.

Caution: The BLD must be
calibrated.

Replace P.C.B. LP 123.

Caution: The BLD must be
calibrated.

Connect the clock pulse generator
socket.

Replace P.C.B. LP 123.

Blood pump

Reed contact  line threading
position
Acknowledge with
[START/RESET] key.

Defect of the clock pulse generator
on the geared motor.

Magnet in rotor missing, defective. Replace the rotor.

Reed switch in pump housing not
connected or defective.

Control electronics (P.C.B. LP 123)
of the specified pump defective.

P.C.B. LP 244-SR defective. Replace P.C.B. LP 244-SR.

Replace the geared motor.

Caution: Blood pump
20 V/3300 rpm; all other pumps
24 V/3300 rpm.

Plug the connector onto the
appropriate P.C.B. LP 123 or
replace the pump housing.

Replace P.C.B. LP 123.

Caution: The BLD must be
calibrated.

Fresenius Medical Care multiFiltrate TM 6/03.07 2-7

Chapter 2: Functional Description

Error message Causes Action required

Blood pump

Stop.
Acknowledge with
[START/RESET] key.

Blood pump

Not stopped by safety processor.
Acknowledge with
[START/RESET] key.

2.4.4 Pressure Transducer

+24-V supply voltage missing. Check the fuse on the PSU board

LP 128. If necessary, replace
P.C.B. LP 128.

Caution: All pressures must be
checked and calibrated, if
necessary.

Control electronics (P.C.B. LP 123)
of the specified pump defective.

P.C.B. LP 244-OP defective.
(The pumps are activated serially,
i.e. the operating processor is
defective only if all pumps fail to be
activated.)

Control electronics (P.C.B. LP 123)
of the specified pump defective.

P.C.B. LP 244-SR defective. Replace P.C.B. LP 244-SR.

Replace P.C.B. LP 123.

Replace P.C.B. LP 244-OP.

Caution: All scales and pressures
must be calibrated.

Replace P.C.B. LP 123.

Caution: The BLD must be
calibrated.

In the first step, the zero point, amplification and detuning factors are
tested. In the second step, the zero points of the pressure transducers
are checked with a tolerance of ±20 mmHg. In the third step, Part and
Pven are detuned to 300 mmHg. The values are checked with a
tolerance of ±20 mmHg. In the fourth step, PPHF and PFil are detuned
to 300 mmHg. The values are checked with a tolerance of ±20 mmHg.
In the event of an error, messages are emitted. The following table only
shows the error messages for "arterial pressure". The messages are
identical for the venous, pre-hemofilter and filtrate pressures.

Error message Causes Action required

Arterial pressure

Factors / Offset lost.
Acknowledge with
[START/RESET] key.

Lithium battery on P.C.B. LP 244­OP discharged.

Replace the battery and execute
the calibration step in the Service
program.

2-8 Fresenius Medical Care multiFiltrate TM 6/03.07

Chapter 2: Functional Description

Error message Causes Action required

Arterial pressure

Zero outside tolerance.
Acknowledge with
[START/RESET] key.

Arterial pressure

Detuning outside tolerance
Acknowledge with
[START/RESET] key.

Zero point drifted off. Check the setting and calibrate the

pressure in the Service program.

P.C.B. LP 343-1 (for venous
pressure: P.C.B. LP 450-3)
defective.

P.C.B. LP 244-OP defective. Replace P.C.B. LP 244-OP.

Amplification drifted off. Check the setting and calibrate the

P.C.B. LP 343-1 (for venous
pressure: P.C.B. LP 450-3)
defective.

Replace P.C.B. LP 343-1 (LP 450-

3) and calibrate the pressure in the
Service program.

Caution: When replacing the
P.C.B. LP 450-3, check / adjust the
air detector, optical detector and
venous pressure transducer.

Caution: All scales and pressures
must be calibrated.

pressure in the Service program.

Replace P.C.B. LP 343-1 (LP 450-

3) and calibrate the pressure in the
Service program.

Caution: When replacing the
P.C.B. LP 450-3, check / adjust the
air detector, optical detector and
venous pressure transducer.

2.4.5 Optical Detector

P.C.B. LP 244-OP defective. Replace P.C.B. LP 244-OP.

Caution: All scales and pressures
must be calibrated.

In the first step, the non-opaque state is checked. In the second step,
the optical detector is detuned and the opaque state is checked. In the
event of an error, messages are emitted.

Fresenius Medical Care multiFiltrate TM 6/03.07 2-9

Chapter 2: Functional Description

Error message Causes Action required

Opt. detector

Senses opaque fluid.
Acknowledge with
[START/RESET] key.

Opt. detector

Fails to sense opaque fluid after
attenuation.
Acknowledge with
[START/RESET] key.

Blood present in the system or
objects inserted in the OD.

OD adjusted improperly. Check the setting of the OD.

P.C.B. LP 450-3 defective. Replace the P.C.B. LP 450-3.

Measuring head of OD defective. Replace and adjust the OD

P.C.B. LP 244-SR defective. Replace P.C.B. LP 244-SR.

OD adjusted improperly. Check the setting of the OD.

P.C.B. LP 450-3 defective. Replace the P.C.B. LP 450-3.

P.C.B. LP 244-OP defective. Replace P.C.B. LP 244-OP.

Remove the blood line or the
objects from the OD.

Caution: When replacing the
P.C.B. LP 450-3, check / adjust the
air detector, optical detector and
venous pressure transducer.

measuring head.

Caution: The BLD must be
calibrated.

Caution: When replacing the
P.C.B. LP 450-3, check / adjust the
air detector, optical detector and
venous pressure transducer.

2.4.6 Air Detector

Caution: All scales and pressures

must be calibrated.

AD 28 defective. Replace AD 28-1.

In the first step, it is checked whether fluid is present in the drip
chamber. if YES, the clamp is activated (opened). In the second step,
the air detector is detuned and the alarm state checked. In the event of
an error, messages are emitted.

2-10 Fresenius Medical Care multiFiltrate TM 6/03.07

Chapter 2: Functional Description

Error message Causes Action required

Air detector

LDA1  not in alarm mode.
Acknowledge with
[START/RESET] key.

Air detector

Clamp does not close.
Acknowledge with
[START/RESET] key.

LD adjusted improperly. Check the setting of the LD.

P.C.B. LP 450-3 defective. Replace the P.C.B. LP 450-3.

Caution: When replacing the
P.C.B. LP 450-3, check / adjust the
air detector, optical detector and
venous pressure transducer.

Ultrasonic detector defective. Replace and adjust the ultrasonic

detector.

P.C.B. LP 244-SR defective. Replace P.C.B. LP 244-SR.

Caution: The BLD must be
calibrated.

LD adjusted improperly (LDA2). Check the setting of the LD.

P.C.B. LP 450-3 defective. Replace the P.C.B. LP 450-3.

Caution: When replacing the
P.C.B. LP 450-3, check / adjust the
air detector, optical detector and
venous pressure transducer.

P.C.B. LP 244-SR defective. Replace P.C.B. LP 244-SR.

Caution: The BLD must be
calibrated.

2.4.7 Blood Leak Detector

In the first step, the blood leak detector is checked for being in an
acceptable state. In the second step, the blood leak detector is detuned
and the alarm state checked. In the event of an error, messages are
emitted.

Error message Causes Action required

Blood leak detector

Calibration values incorrect
or missing.
Acknowledge with
[START/RESET] key.

Lithium battery on P.C.B. LP 244­SP discharged.

Replace the battery and execute
the calibration step in the Service
program.

Fresenius Medical Care multiFiltrate TM 6/03.07 2-11

Chapter 2: Functional Description

Error message Causes Action required

Blood leak detector

Outside acceptable range.
Remove filtrate line.
Acknowledge with
[START/RESET] key.

Blood leak detector

Alarm-free after signal attenuation.
Acknowledge with
[START/RESET] key.

2.4.8 Heater

Empty filtrate line or objects
inserted in the BLD sensor head.

P.C.B. LP 125 and/or BLD sensor
head defective.

P.C.B. LP 244-SR defective. Replace P.C.B. LP 244-SR.

P.C.B. LP 125 and/or BLD sensor
head defective.

P.C.B. LP 244-OP defective. Replace P.C.B. LP 244-OP.

In the first step, the safety relay is checked for being in the open state.
In addition, the sensors are checked for interruption and short-circuit. In
the second step, the safety relay is activated and checked for being in
the closed state. In the third step, the bag and foil sensors of OP and
SP are checked for being synchronized. Tolerances are ±1 °C. In the
fourth step, the foil sensor is detuned to >120 °C and, thus, the safety
shutoff mechanism (fire protection) is checked. In the fifth step, the bag
and foil sensors are detuned to >41 °C to check whether the heater is
switched off in case of an overtemperature of the solutions. In the sixth
step, it is checked whether the heater can be activated. In the event of
an error, messages are emitted. Here, the error messages section only
relates to the lower heater. The messages are identical for the upper
heater.

Remove the filtrate line or the
objects.

Replace P.C.B. LP 125 and the
BLD sensor head, and calibrate the
BLD.

Caution: The BLD must be
calibrated.

Replace P.C.B. LP 125 and the
BLD sensor head, and calibrate the
BLD.

Caution: All scales and pressures
must be calibrated.

Error message Causes Action required

Lower heater

Switch-off path SP defective
(Sub. relay not open)
Voltage missing.
Fuse defective.
Acknowledge with
[START/RESET] key.

2-12 Fresenius Medical Care multiFiltrate TM 6/03.07

Safety relay on P.C.B. LP 122
defective.

Activation on P.C.B. LP 244-SR
defective.

Supply voltage for heater not
connected.

Fuse on P.C.B. LP 122 defective. Replace the fuse.

Replace P.C.B. LP 122.

Replace P.C.B. LP 244-SR.

Caution: The BLD must be
calibrated.

Fit the socket on P.C.B. LP 122.

Chapter 2: Functional Description

Error message Causes Action required

Lower heater

Control FET short-circuit
Acknowledge with
[START/RESET] key.

Lower heater

Bag sensor broken.
Acknowledge with
[START/RESET] key.

Lower heater

Foil sensor broken.
Acknowledge with
[START/RESET] key.

Lower heater

Control FET defective. Replace P.C.B. LP 122.

Activation on P.C.B. LP 244-OP
defective.

Socket of sensors not fitted. Fit the socket on P.C.B. LP 122.

Sensor interrupted. Replace the heater.

P.C.B. LP 122 defective Replace P.C.B. LP 122.

Converter on P.C.B. LP 244-SR
defective.

Socket of sensors not fitted. Fit the socket on P.C.B. LP 122.

Sensor interrupted. Replace the heater.

P.C.B. LP 122 defective Replace P.C.B. LP 122.

Converter on P.C.B. LP 244-SR
defective.

Bag sensor short-circuit. Replace the heater.

Replace P.C.B. LP 244-OP.

Caution: All scales and pressures
must be calibrated.

Replace P.C.B. LP 244-SR.

Caution: The BLD must be
calibrated.

Replace P.C.B. LP 244-SR.

Caution: The BLD must be
calibrated.

Bag sensor short-circuit.
Acknowledge with
[START/RESET] key.

Lower heater

Foil sensor short-circuit.
Acknowledge with
[START/RESET] key.

Lower heater

Sub. relay not closed,
foil defective.
Acknowledge with
[START/RESET] key.

P.C.B. LP 122 defective Replace P.C.B. LP 122.

Converter on P.C.B. LP 244-SR
defective.

Bag sensor short-circuit. Replace the heater.

P.C.B. LP 122 defective Replace P.C.B. LP 122.

Converter on P.C.B. LP 244-SR
defective.

Supply voltage for heater not
connected.

Fuse on P.C.B. LP 122 defective. Replace the fuse.

Heater foil not connected. Connect the heater foil to P.C.B.

Heater foil interrupted. Replace the heater.

Safety relay defective. Replace P.C.B. LP 122.

Activation on P.C.B. LP 244-SR
defective.

Replace P.C.B. LP 244-SR.

Caution: The BLD must be
calibrated.

Replace P.C.B. LP 244-SR.

Caution: The BLD must be
calibrated.

Fit the socket on P.C.B. LP 122.

LP 122.

Replace P.C.B. LP 244-SR.

Caution: The BLD must be
calibrated.

Fresenius Medical Care multiFiltrate TM 6/03.07 2-13

Chapter 2: Functional Description

Error message Causes Action required

Lower heater

Bag sensors,
OP-SP not synchronous
Acknowledge with
[START/RESET] key.

Lower heater

Foil sensors,
OP-SP not synchronous
Acknowledge with
[START/RESET] key.

Heater still warm after last
treatment or Service program.

Sensor board (P.C.B. LP 1220)
defective.

P.C.B. LP 122 defective Replace P.C.B. LP 122.

Converter on P.C.B. LP 244-SR
defective.

Converter on P.C.B. LP 244-OP
defective.

Heater still warm after last
treatment or Service program.

Sensor board (P.C.B. LP 1220)
defective.

P.C.B. LP 122 defective Replace P.C.B. LP 122.

Converter on P.C.B. LP 244-SR
defective.

Allow the heater to cool down.

Replace the heater.

Replace P.C.B. LP 244-SR.

Caution: The BLD must be
calibrated.

Replace P.C.B. LP 244-OP.

Caution: All scales and pressures
must be calibrated.

Allow the heater to cool down.

Replace the heater.

Replace P.C.B. LP 244-SR.

Caution: The BLD must be
calibrated.

Lower heater

Foil sensor detuning,
no overtemperature cutoff.
Acknowledge with
[START/RESET] key.

Lower heater

Bag sensor detuning,
no overtemperature.
Acknowledge with
[START/RESET] key.

Converter on P.C.B. LP 244-OP
defective.

DIL relay on P.C.B. LP 122
defective.

DIL relay on P.C.B. LP 122
defective.

Activation on P.C.B. LP 244-OP
defective.

Replace P.C.B. LP 244-OP.

Caution: All scales and pressures
must be calibrated.

Replace P.C.B. LP 122.

Replace P.C.B. LP 122.

Replace P.C.B. LP 244-OP.

Caution: All scales and pressures
must be calibrated.

2-14 Fresenius Medical Care multiFiltrate TM 6/03.07

Chapter 2: Functional Description

Error message Causes Action required

Lower heater

Foil sensor detuning,
no overtemperature.
Acknowledge with
[START/RESET] key.

Lower heater

FET control defective
Acknowledge with
[START/RESET] key.

DIL relay on P.C.B. LP 122
defective.

Activation on P.C.B. LP 244-OP
defective.

FET on P.C.B. LP 122 defective. Replace P.C.B. LP 122.

Activation on P.C.B. LP 44-OP
defective.

Replace P.C.B. LP 122.

Replace P.C.B. LP 244-OP.

Caution: All scales and pressures
must be calibrated.

Replace P.C.B. LP 244-OP.

Caution: All scales and pressures
must be calibrated.

2.4.9 Battery Test, Part 2

The first step was carried out at the beginning of the functional test, with
acceptance of the starting value and loading of the battery. In the
second step, the voltage is checked after loading and is compared with
the starting value. In the event of an error, messages are emitted.

Error message Causes Action required

Battery test

Battery not connected, defective.
Acknowledge with
[START/RESET] key.

Battery not connected. Connect the rechargeable battery.

Battery terminal voltage without
load <<18 V.

Converter on P.C.B. LP 244-OP
defective.

Replace the battery.

Replace P.C.B. LP 244-OP.

Caution: All scales and pressures
must be calibrated.

Battery test

Load test failed.
Acknowledge with
[START/RESET] key.

Fresenius Medical Care multiFiltrate TM 6/03.07 2-15

Resistor or load relay on the PSU,
P.C.B. LP 128, defective.

Converter or activation on P.C.B.
LP 244-OP defective.

Replace P.C.B. LP 128.

Caution: All pressures must be
checked and calibrated, if
necessary.

Replace P.C.B. LP 244-OP.

Caution: All scales and pressures
must be calibrated.

Chapter 2: Functional Description

Error message Causes Action required

Battery test

Insufficient capacity.
Acknowledge with
[START/RESET] key.

System not used for a prolonged
period or frequent power failure
(preparation).

Battery defective.

Charging circuit on the PSU board,
P.C.B. LP 128, defective.

Converter on P.C.B. LP 244-OP
defective.

Load the battery from the mains for
a minimum of 10 hours.

Replace the battery.

Replace P.C.B. LP 128.

Caution: All pressures must be
checked and calibrated, if
necessary.

Replace P.C.B. LP 244-OP.

Caution: All scales and pressures
must be calibrated.

2.4.10 Audible Alarm

In the first step, it is checked whether the audible alarm is silenced. In
the second step, the audible alarm is generated and checked for proper
functioning by means of a microphone. In the event of an error,
messages are emitted.

Error message Causes Action required

Audible alarm

Not silenced.
Acknowledge with
[START/RESET] key.

Constant ambient noise. Repeat the test after the noise has

stopped.

Loud humming noise on the
loudspeaker.

Check the route of the loudspeaker
cable. Replace the loudspeaker­microphone unit or the
motherboard P.C.B. LP 124.

The microphone line is disturbed. Check the route of the microphone

cable.

Microphone or amplifier defective. Replace the loudspeaker-

microphone unit or the
motherboard P.C.B. LP 124.

Audible alarm

Not active.
Acknowledge with
[START/RESET] key.

2-16 Fresenius Medical Care multiFiltrate TM 6/03.07

Alarm tone not audible. Loudspeaker cable connected to

P.C.B. LP 124?

Replace the loudspeaker­microphone unit or the
motherboard P.C.B. LP 124.

Error message despite audible
alarm.

Microphone cable connected to
P.C.B. LP 124?

Replace the loudspeaker­microphone unit or the
motherboard P.C.B. LP 124.

Chapter 2: Functional Description

2.4.11 Heparin Pump

After turning power on to the multiFiltrate, a self-test of the heparin
pump will be performed. Immediately before the multiFiltrate self-test,
the operating processor will query the heparin pump status. In the event
of an error, messages are emitted. If the heparin pump is not installed,
not connected to the power supply or deactivated via Service option, no
error message will be displayed.

Error message Causes Action required

Heparin pump

Heparin pump not ready.
No communication.

Heparin pump

Heparin pump optionally
deactivated in Service mode

Heparin pump

Heparin pump detects internal error

Heparin pump

Wrong / unauthorized syringe type
detected

Heparin pump

Unknown hardware error

Heparin pump does not respond. Acknowledge with

[START/RESET] key.

Heparin pump deactivated.

Heparin pump manually
deactivated in the Service mode

Internal heparin pump error without
definite cause.

Wrong syringe type set. Acknowledge with

Heparin pump detects an unknown
hardware error.

Acknowledge with
[START/RESET] key.

Heparin pump deactivated.

Acknowledge with
[START/RESET] key.

Heparin pump deactivated.

[START/RESET] key.

Heparin pump deactivated.

Select a valid syringe type.
0 = 50 ml P syringe

1 = 30 ml heparin syringe
2 = 50 ml Injectomat syringe

Acknowledge with
[START/RESET] key.

Heparin pump deactivated.

Heparin pump

Heparin pump hardware error
Gate array error

Heparin pump

Spike on reset line

Heparin pump

Wrong HEX switch position

Heparin pump

Powerdown

Fresenius Medical Care multiFiltrate TM 6/03.07 2-17

Heparin pump detects an error in
the gate array.

A reset occurred during operation. Acknowledge with

Wrong HEX switch position set. Acknowledge with

Powerdown without 24 V-cutoff. Acknowledge with

Acknowledge with
[START/RESET] key.

Heparin pump deactivated.

[START/RESET] key.

Heparin pump deactivated.

[START/RESET] key.

Heparin pump deactivated.

Set a valid HEX switch position.

[START/RESET] key.

Heparin pump deactivated.

Chapter 2: Functional Description

Error message Causes Action required

Heparin pump

Operating processor internal
communication error with heparin
pump

Heparin pump

Watchdog error

Heparin pump

NOVRAM error

Heparin pump

CAMUS transmission error

2.4.12 multiDataLink

Erroneous data transmission.
Wrong or missing characters.
Check sum error.

The watchdog is not able to
interrupt the 24 V control voltage
for the stepper motor.

The CRC protection of the data
saved in the E2PROM is not
correct.

Not used in the multiFiltrate. Not used in the multiFiltrate.

Immediately before the multiFiltrate self-test, the operating processor
will query the multiDataLink version identifications. A response given by
the mDL is an indicator for its operability. In the event of an error,
messages are emitted. If the multiDataLink is not installed, not
connected to the power supply or deactivated via Service option, no
error message will be displayed.

Acknowledge with
[START/RESET] key.

Heparin pump deactivated.

Acknowledge with
[START/RESET] key.

Heparin pump deactivated.

Acknowledge with
[START/RESET] key.

Heparin pump deactivated.

Error message Causes Action required

multiDataLink

multiDataLink not standby
No communication

multiDataLink

multiDataLink optionally
deactivated in Service mode

multiDataLink does not respond. Acknowledge with

[START/RESET] key.

multiDataLink deactivated.

multiDataLink manually
deactivated in the Service program.

Acknowledge with
[START/RESET] key.

multiDataLink deactivated.

Activate multiDataLink in the
Service program.

2.4.13 Ci-Ca Module (Option)

The test for the Ci-Ca module can not be enabled if the processor test
of the module and the multiFiltrate was not passed successfully. If these
processor tests are performed successfully, the T1 test will be started
automatically as soon as the operator has confirmed that the starting
conditions are met.

The following functions of the Ci-Ca module are tested:

2-18 Fresenius Medical Care multiFiltrate TM 6/03.07

Chapter 2: Functional Description

 Stop of the citrate and the calcium pump by the module's operating

processor
 Stop of the citrate and the calcium pump by the system's watchdog.
 Function of the citrate pump and the insertion switch
 Function of the calcium pump and the insertion switch

If a test could not be passed successfully, a warning indicating an error
number appears on the multiFiltrate display. The test can be repeated
any number of times, however, it cannot be skipped.

The T1 test of the multiFiltrate system is performed simultaneously to
the T1 test of the Ci-Ca module.

Error
number

281 Lacking Ci Hall impulse after test was started

282 Ci Hall impulse too early during pump stop test

283 Ci Hall impulse too late during pump stop test

285 Ci Hall impulse too early during pump stop test

286 Ci Hall impulse too late during pump stop test

288 Ci Hall impulse too early during insertion switch

289 Ci Hall impulse too late during insertion switch

291 Lacking Ca Hall impulse after test was started

292 Ca Hall impulse too early during pump stop test

Description Possible cause

(>5 s).

(<7 s).

(>9 s).

(<7 s).

(>9 s).

test (<7 s).

test (>9 s).

(>5 s).

(<7 s).

The rotor of the citrate pump is loose, jammed or
blocked.

Insertion switch pressed --> citrate line already
inserted.

The rotor of the citrate pump is loose, jammed or
blocked.

Insertion switch pressed --> citrate line already
inserted during the test.

The rotor of the citrate pump is loose, jammed or
blocked.

Insertion switch pressed --> citrate line already
inserted during the test.

The rotor of the citrate pump is loose, jammed or
blocked.

The rotor of the Ca pump is loose, jammed or
blocked.

Insertion switch pressed --> calcium line already
inserted.

293 Ca Hall impulse too late during pump stop test

(>9 s).

295 Ca Hall impulse too early during pump stop test

(<7 s).

296 Ca Hall impulse too late during pump stop test

(>9 s).

298 Ca Hall impulse too early during insertion switch

test (<7 s).

299 Ca Hall impulse too late during insertion switch

test (>9 s).

Fresenius Medical Care multiFiltrate TM 6/03.07 2-19

The rotor of the Ca pump is loose, jammed or
blocked.

Insertion switch pressed --> calcium line already
inserted during the test.

The rotor of the Ca pump is loose, jammed or
blocked.

Insertion switch pressed --> calcium line already
inserted during the test.

The rotor of the Ca pump is loose, jammed or
blocked.

Chapter 2: Functional Description

2.5 Error Messages

2.5.1 Alarm Messages

These messages cause all pumps to stop

Code Description

E10 Blood pump: Blood pump door open

E11 Blood pump: Stop

E12 Blood pump: Wrong speed, rate

E13 Arterial pressure, arterial pressure too low

E14 Arterial pressure, arterial pressure too high

E15 Venous pressure, venous pressure too low

E16 Venous pressure, venous pressure too high

E17 TMP, TMP too low

E18 TMP, TMP too high

E19 System stopped, Stop key has been pressed

E20 Pre-filter pressure/ Pre-filter pressure too low (for

hemoperfusion)

E21 Pre-filter pressure, pre-filter pressure too low

E22 Pre-filter pressure, pre-filter pressure too high

E23 Non-opaque/opaque fluid detector, venous detector

senses non-opaque or opaque fluid

E24 Air detector, air and/or microbubbles

E25 Blood leak detector, blood leak, hemolysis, membrane

rupture

E26 Blood leak detector, 2 min override active

E27 Power failure, emergency operation available for max.

15 min.

Converted by OP from SP code 130.

E28 End of emergency operation, the unit will turn itself off

automatically after 5 minutes.

Converted by OP from SP code 189.

E29 Pre-filter pressure/ Pre-filter pressure too high (for

hemoperfusion)

E30 Blood lines: Blood line jammed / Hydrophobic filter

P_pHF wet

E31 Blood lines: Rotor broken

2-20 Fresenius Medical Care multiFiltrate TM 6/03.07