Service Manual
150 Pages
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Page 1
multiFiltrate Technical Manual Service Manual Edition: 6/03.07 Part no. M28 003 1
Table of Contents 1
2
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
Functional Description 2.1 2.1.1 2.1.2 2.1.3 2.1.4 2.1.5 2.1.6 2.1.7
Extracorporeal Circuit... 2-1 Pumps ... 2-1 Heaters ... 2-2 Pressure Transducer ... 2-2 Air Detector and Venous Clamp ... 2-2 Optical Detector (Non-Opaque/Opaque Fluid Detector)... 2-3 Blood Leak Detector ... 2-3 Heparin Pump... 2-3
2.2
Weighing Units ... 2-3
2.3
Ci-Ca Module (Option)... 2-4
2.4 2.4.1 2.4.2 2.4.3 2.4.4 2.4.5 2.4.6 2.4.7 2.4.8 2.4.9 2.4.10 2.4.11 2.4.12 2.4.13
Functional Test (T1 Test) and Error Messages... 2-4 Battery Test, Part 1... 2-5 Scales Test... 2-5 Pump Test ... 2-6 Pressure Transducer ... 2-8 Optical Detector... 2-9 Air Detector... 2-10 Blood Leak Detector ... 2-11 Heater ... 2-12 Battery Test, Part 2... 2-15 Audible Alarm ... 2-16 Heparin Pump... 2-17 multiDataLink ... 2-18 Ci-Ca Module (Option)... 2-18
2.5 2.5.1 2.5.2 2.5.3 2.5.4 2.5.5 2.5.6 2.5.7
Error Messages... 2-20 Alarm Messages ... 2-20 Warning Messages... 2-22 Fatal Errors... 2-30 Error Codes of Scales Lo-Level Routines ... 2-33 Error Codes of Pressures Lo-Level Routines... 2-35 Error Codes of Heparin Pump Lo-Level Routines... 2-36 Error Codes of Pumps Lo-Level Routines... 2-37
2.6
Overview of Display Identification Numbers ... 2-37
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3
4
5
0-2
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
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
Adjustment Instructions and Tests 5.1
Service Tools ... 5-1
5.2 5.2.1 5.2.2 5.2.3 5.2.4 5.2.5 5.2.6 5.2.7 5.2.8 5.2.9 5.2.10 5.2.11 5.2.12 5.2.13 5.2.14
Service Program ... 5-2 Start ... 5-2 Selecting the Language ... 5-3 System Messages ... 5-3 Deactivating and Activating the Heparin Pump ... 5-3 Filtrate Bag Monitoring Limit ... 5-4 Dialysate Tubing Arrangement ... 5-4 Option MultiDataLink (mDL) ... 5-5 Taring and Calibrating the Scales... 5-7 Calibrating the Pressures ... 5-8 Calibrating the Blood Leak Detector ... 5-10 Verifying the System Values... 5-11 Events Memory... 5-13 Program Treatment Modes... 5-15 Programming the Ci-Ca Data (Option) ... 5-16
5.3 5.3.1 5.3.2 5.3.3 5.3.4 5.3.5 5.3.6 5.3.7 5.3.8
Extracorporeal Components ... 5-17 Tightness of the Venous Occlusion Clamp... 5-17 Checking the Pressure Transducers ... 5-17 Venous Pressure Transducer (P.C.B. LP 450-3)... 5-18 Air Detector (P.C.B. LP 450-3) ... 5-20 Optical Detector Sensing Opaque / Non-Opaque Fluid (P.C.B. LP 450-3) ... 5-21 Arterial / Filtrate / PHF Pressure Transducers (P.C.B. LP 343-1) ... 5-21 Blood Leak Detector ... 5-22 Setting the Heparin Pump... 5-23
5.4 5.4.1 5.4.2 5.4.3
Programming the Processors ... 5-25 Display Processor (DP) ... 5-26 Operating and Safety Processors (OP and SP) ... 5-26 Interchangeability of Safety and Operating Processor ... 5-30
5.5
Ci-Ca Module (Option)... 5-31
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5.5.1 5.5.2 5.5.3 5.5.4 5.5.5
6
7
Preparing the Functional Test ... 5-31 Functional Test of the Drip Counter... 5-32 Functional Test of the Hall Sensor ... 5-32 Functional Test of the Insertion Switch... 5-32 Functional Test of the Line Occlusion ... 5-33
PC Service Software MFT 6.1
Organization of the Quick Guide... 6-1
6.2
General Information ... 6-1
6.3 6.3.1 6.3.2 6.3.3 6.3.4 6.3.5
Preparation... 6-1 System Requirements ... 6-1 Software Installation ... 6-2 Hardware Installation ... 6-3 ServiceCard Description... 6-3 Starting the Software ... 6-3
Block Diagrams and Component Layouts 7.1
Block Diagram ... 7-2
7.2
AC Wiring ... 7-3
7.3 7.3.1 7.3.2 7.3.3
P.C.B. LP 122 Heater Control ... 7-4 Block Diagram ... 7-4 Description... 7-4 Component Layout ... 7-5
7.4 7.4.1 7.4.2
P.C.B. LP 123 Pump Control... 7-6 Description... 7-6 Component Layout ... 7-7
7.5 7.5.1 7.5.2
P.C.B. LP 124 Motherboard ... 7-8 Description... 7-8 Component Layout ... 7-9
7.6 7.6.1
P.C.B. LP 125 Blood Leak Detector ... 7-10 Component Layout ... 7-10
7.7 7.7.1 7.7.2
P.C.B. LP 127 Scales Board... 7-11 Description... 7-11 Component Layout ... 7-11
7.8 7.8.1 7.8.2 7.8.3
P.C.B. LP 128, Power Supply Unit... 7-12 Block Diagram ... 7-12 Description... 7-12 Component Layout ... 7-13
7.9 7.9.1
P.C.B. LP 129 User Interface ... 7-14 Component Layout ... 7-14
7.10 7.10.1 7.10.2 7.10.3
P.C.B. LP 244 Operating and Safety Processors... 7-15 Block Diagram ... 7-15 Jumper Description... 7-15 Component Layout ... 7-17
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0-4
7.11 7.11.1
P.C.B LP 343-4 Pressure Transducer ... 7-18 Component Layout ... 7-18
7.12 7.12.1
P.C.B. LP 450-3 multiFiltrate Air Detector Control ... 7-19 Component Layout ... 7-19
7.13 7.13.1
P.C.B. LP 950, Control Board (Heparin Pump)... 7-20 Component Layout ... 7-20
7.14 7.14.1 7.14.2
Ci-Ca Module... 7-21 Block Diagram ... 7-21 Component Layout (P.C.B. LP MS 0407)... 7-22
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TM
6/03.07
Chapter 1: Important Information
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.
Changes
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Chapter
Current version
1
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2
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3
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4
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5
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6
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7
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Manual changes will be released as new editions and supplements. In general - subject to change without notice.
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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
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.
Explanation of the Note and Caution symbols used 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
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Chapter 1: Important Information
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.
Test equipment and accessories
The activities described in the Technical Manual require the availability of the necessary technical test equipment and accessories.
Precautions
When working on the open system, the following precautions must be 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
When repairing and when replacing spare parts, observe the applicable ESD precautions (e.g. EN 100 015-1).
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Chapter 1: Important Information
1.4
Addresses Please address any inquiries to: Manufacturer
Fresenius Medical Care AG & Co. KGaA D-61346 Bad Homburg Germany +49 (0)6172/609-0 www.fmc-ag.com
Service Central Europe
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: [email protected]
International service
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
Local service
1-4
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Chapter 2: Functional Description
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
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.
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Chapter 2: Functional Description
2.1.2
Heaters 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.
2.1.3
Pressure Transducer Four pressures are measured at the multiFiltrate: Arterial pressure, Measuring transducer (P.C.B. LP 343-1) between the patients 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 patients 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
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Chapter 2: Functional Description
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 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).
2.2
Weighing Units 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.
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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
2.4
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.
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
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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
Lithium battery on P.C.B. LP 244OP discharged.
Replace the battery and execute the calibration step in the Service program.
Defect of the EPROM on P.C.B. LP 127 of the scales specified.
Replace the P.C.B. and the weighing bar and execute the calibration step in the Service program.
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.
Set up the system in a stable position. Remove the system from the draft, or close the window. Relieve the scales.
The +12 V and/or 12 V voltage(s) is (are) missing.
Check the fuses on the PSU board LP 128 and replace the P.C.B. LP 128, if necessary.
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.
Caution: All pressures must be checked and calibrated, if necessary. Scales mechanics not smooth.
Check for smoothness and adjust, if necessary. Weight check in the Service program.
Connector not fitted or defective ribbon cable.
Fit the connector to the motherboard and/or to the P.C.B. LP 127. Replace the ribbon cable.
P.C.B. LP 244-OP defective.
Replace P.C.B. LP 244-OP. Caution: All scales and pressures must be calibrated.
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Chapter 2: Functional Description
Error message
Causes
Action required
Scale I
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.
Set up the system in a stable position. Remove the system from the draft, or close the window. Relieve the scales.
Lifting magnet for ball not connected or defective.
Fit the connector to the motherboard. If defective, the lifting magnet must be replaced.
Ball mechanics not smooth.
Check for smoothness and adjust, if necessary. Weight check in the Service program.
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.
Set up the system in a stable position. Remove the system from the draft, or close the window. Relieve the scales.
Scales mechanics not smooth.
Check for smoothness and adjust, if necessary. Weight check in the Service program.
Test weight fails to drop back. Ball mechanics not smooth.
Check for smoothness and adjust, if necessary. Weight check in the Service program (ESC Service).
Test weight outside tolerance. Acknowledge with [START/RESET] key.
Scale I Zero offset outside tolerance. Acknowledge with [START/RESET] key.
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
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TM
6/03.07
Chapter 2: Functional Description
Error message
Causes
Action required
Blood pump
Blood pump door open.
Close the blood pump door.
Blood pump door open. Acknowledge with [START/RESET] key.
Magnet in blood pump door missing.
Replace the blood pump door.
Hall sensor in pump housing not connected or defective.
Plug the connector onto the appropriate P.C.B. LP 123 or replace the pump housing.
Control electronics (P.C.B. LP 123) of the specified pump defective.
Replace P.C.B. LP 123.
P.C.B. LP 244-SR defective.
Replace P.C.B. LP 244-SR. Caution: The BLD must be calibrated.
Blood pump Not stopped by operating processor. Acknowledge with [START/RESET] key. Blood pump
Control electronics (P.C.B. LP 123) of the specified pump defective.
Replace P.C.B. LP 123.
P.C.B. LP 244-SR defective.
Replace P.C.B. LP 244-SR. Caution: The BLD must be calibrated.
Clock pulse generator of motor on P.C.B. LP 123 not connected.
Connect the clock pulse generator socket.
Control electronics (P.C.B. LP 123) of the specified pump defective.
Replace P.C.B. LP 123.
Defect of the clock pulse generator on the geared motor.
Replace the geared motor.
Blood pump
Magnet in rotor missing, defective.
Replace the rotor.
Reed contact line threading position Acknowledge with [START/RESET] key.
Reed switch in pump housing not connected or defective.
Plug the connector onto the appropriate P.C.B. LP 123 or replace the pump housing.
Control electronics (P.C.B. LP 123) of the specified pump defective.
Replace P.C.B. LP 123.
P.C.B. LP 244-SR defective.
Replace P.C.B. LP 244-SR.
Wrong speed, rate. Acknowledge with [START/RESET] key.
Caution: Blood pump 20 V/3300 rpm; all other pumps 24 V/3300 rpm.
Caution: The BLD must be calibrated.
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2-7
Chapter 2: Functional Description
Error message
Causes
Action required
Blood pump
+24-V supply voltage missing.
Check the fuse on the PSU board LP 128. If necessary, replace P.C.B. LP 128.
Stop. Acknowledge with [START/RESET] key.
Blood pump Not stopped by safety processor. Acknowledge with [START/RESET] key.
2.4.4
Caution: All pressures must be checked and calibrated, if necessary. Control electronics (P.C.B. LP 123) of the specified pump defective.
Replace P.C.B. LP 123.
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.)
Replace P.C.B. LP 244-OP.
Control electronics (P.C.B. LP 123) of the specified pump defective.
Replace P.C.B. LP 123.
P.C.B. LP 244-SR defective.
Replace P.C.B. LP 244-SR.
Caution: All scales and pressures must be calibrated.
Caution: The BLD must be calibrated.
Pressure Transducer 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
Lithium battery on P.C.B. LP 244OP discharged.
Replace the battery and execute the calibration step in the Service program.
Factors / Offset lost. Acknowledge with [START/RESET] key.
2-8
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Chapter 2: Functional Description
Error message
Causes
Action required
Arterial pressure
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.
Replace P.C.B. LP 343-1 (LP 4503) and calibrate the pressure in the Service program.
Zero outside tolerance. Acknowledge with [START/RESET] key.
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-OP defective.
Replace P.C.B. LP 244-OP. Caution: All scales and pressures must be calibrated.
Arterial pressure Detuning outside tolerance Acknowledge with [START/RESET] key.
Amplification 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.
Replace P.C.B. LP 343-1 (LP 4503) 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.
P.C.B. LP 244-OP defective.
Replace P.C.B. LP 244-OP. Caution: All scales and pressures must be calibrated.
2.4.5
Optical Detector 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.
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2-9
Chapter 2: Functional Description
Error message
Causes
Action required
Opt. detector
Blood present in the system or objects inserted in the OD.
Remove the blood line or the objects from 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.
Senses opaque fluid. Acknowledge with [START/RESET] key.
Caution: When replacing the P.C.B. LP 450-3, check / adjust the air detector, optical detector and venous pressure transducer. Measuring head of OD defective.
Replace and adjust the OD measuring head.
P.C.B. LP 244-SR defective.
Replace P.C.B. LP 244-SR. Caution: The BLD must be calibrated.
Opt. detector
OD adjusted improperly.
Check the setting of the OD.
Fails to sense opaque fluid after attenuation. Acknowledge with [START/RESET] key.
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-OP defective.
Replace P.C.B. LP 244-OP. Caution: All scales and pressures must be calibrated.
AD 28 defective.
2.4.6
Replace AD 28-1.
Air Detector 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
LD adjusted improperly.
Check the setting of the LD.
LDA1 not in alarm mode. Acknowledge with [START/RESET] key.
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.
Air detector
LD adjusted improperly (LDA2).
Check the setting of the LD.
Clamp does not close. Acknowledge with [START/RESET] key.
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
Lithium battery on P.C.B. LP 244SP discharged.
Replace the battery and execute the calibration step in the Service program.
Calibration values incorrect or missing. Acknowledge with [START/RESET] key.
Fresenius Medical Care
multiFiltrate
TM
6/03.07
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