Fresenius MultiFiltrate Service manual

4.4 (8)
multiFiltrate
Service Manual
Technical Manual
Edition: 6/03.07
Part no. M28 003 1
Table of Contents
1 Important Information
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: +49 6172 609-7100 Fax: +49 6172 609-7102 E-mail: ServicecenterD@fmc-ag.com
Fresenius Medical Care Deutschland GmbH Service Support International Hafenstrasse 9 D-97424 Schweinfurt Germany Phone: +49 9721 678-333 (hotline) Fax: +49 9721 678-130
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
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