DIGIFLOW OEM Ultrasonic Flow Measuring Board - User Manual -
Contents
1. 720 0 0 01 con neo 70 0 0 ot les pa ao op oe oo mmi TEE yu d amp mE HOI 15V 5x 130mA un Mm Mo fe J101 2 15V 5x 130mA gu A cu 0 gp J01 3 15V 5X BOmA Pee Tea gi F J101 4 15V 5 BOmA To JU D J101 5 5V 2 5X 0 8A SZ J101 6 5V 2 5X 0 8A Sa J101 7 5V 2 5 0 8A J01 8 GND ca J101 9 CND ee 101 10 CNO E JH1 11 GND be 3101 12 Te Output 4101 13 RxD lt Input 3101 14 SPI N Output J101 15 SPI OUT input aa J101 16 SPI SCLK input ge 3101 17 RESET gt Output si 5 i J101 18 R_TRIGGER lt Input S o Hee J101 19 CAN_HI Fee mar ng J01 20 CAN LO ER BO an QLD i Ed s i Ea OE e for RS232 level close JMP19 Pin 2 3 and close JMP20 Pin 2 3 for TTL level close JMP19 Pin 1 2 and close JMP20 Pin 1 2 ss to enable R Trigger input close JMP21 Pin 2 3 Wire Connector for J101 AMP MICROMATCH Male 20 pol Part no 9 215083 0 Ribbon Cable 28 AWG 1 27mm Pitch Version FHM 1 0 Page 7 17 DIGIFLOW User Manual e mi e Cc 5 2 Description of the Interfaces Board Description J101 Pin 1 Operating voltage supply current of 130 mA is J101 Pin 2 required J101 Pin 3 Operating voltage supply current of 80 mA is J101 Pin 42. Transmitter Receiver SS Receiver Q Transmitter A The DIGIFLOW uses the ultrasonic transit time method to measure volumetric flow through the tube Liquid is flowing through the Transducer and carries with it the sound wave produced by the piezoceramic A and B The measurement is made twice once upstream and once downstream The transit time is determined in both cases and the difference is proportional to the volumetric flow Other factors such as used tube size ultrasonic frequency fluid type temperature and transducer characteristic s must considered for determination of the actual volumetric flow Version FHM 1 0 Page 6 17 DIGIFLOW User Manual emt e Cc 5 Specifications of the DIGIFLOW Board 5 1 Dimensions and Pin Assignments 15 pol High Density D SUB Jack female bottom view D SUB Pin 1 P104 Pin 2 D SUB Pin 2 P100 Pin 3 D SUB Pin 3 P100 Pin 6 D SUB Pin 4 P100 Pin 4 D SUB Pin 5 P100 Pin 1 D SUB Pin 6 P104 Pin 1 D SUB Pin 7 P105 Pin 2 D SUB Pin 8 P100 Pin 2 0 SUB Pin 9 P100 Pin 5 D SUB Pin 10 N C D SUB Pin 11 P105 Pin 1 D SUB Pin 12 P102 Pin 2 D SUB Pin 13 P102 Pin 1 D SUB Pin 14 P103 Pin 2 D SUB Pin 15 P103 Pin 1 2 6mm
3. If the DIGIFLOW board was successful installed a start up message will be transmitted via the serial data communication port to the main unit Status information such as the following will be edited by using a TV1925 terminal emulation DIGIFlow FlowMeter Software Revision V1 00 Build from Sep 22 2003 13 51 31 Serial No DigiFlow 01 SELFTES IRAM internal check PASSED External WDT check PASSED Flash ROM on chip check PASSED XPER XRAM on chip check PASSED CAN1 RAM on chip check PASSED CAN2 RAM on chip check PASSED EEPROM check PASSED Offset Check mV 0 0 mV 5V Check mV 596 4768 mV 15V Check mV 1023 4092 mv Temperature check 426 PASSED Self Test PASSED Press esc Key for Service Menue Version FHM 1 0 Page 12 17 DIGIFLOW User Manual emt e Cc After showing the results of the initial self test the DIGIFLOW board transmits a data string such as the following via the serial communication port to the main unit Parameter I 2 3 4 5 6 7 8 9 String 00 os ms isso aA 70 mr mom asa The data string consists of the following parameters separated by blanks Parameter 1 error byte hex of the DIGIFLOW board see troubleshooting too Parameter 2 status information hex of the flow measurement board DIGIFLOW Bit 7 Sensor 1 connected Bit 6 currently unused Bit5 Signal amplitude below 39
4. these tests will be transmitted via the serial communication port to the main unit In case that a test fails an error code will be stored in the transmitted error byte Additionally an error indication will be displayed by the OK LED which is located on the top side of the board see page 7 If the unit is running properly the LED is on In case of error detection the LED will be switched off Example of a failed self test DIGIFlow FlowMeter Software Revision V1 00 Build from Sep 22 2003 13 51 31 Serial No DigiFlow 01 SELFTES IRAM internal check PASSED External WDT check PASSED Flash ROM on chip check PASSED XPER XRAM on chip check PASSED CAN1 RAM on chip check PASSED CAN2 RAM on chip check PASSED EEPROM check FAILED Offset Check mV 0 0 mV 5V Check mV 596 4768 mV 15V Check mV 1023 4092 mV Temperature check 426 PASSED Self Test FAILED A data string with error indication is following 19 2A 1087 1090 113 0 1089 0 0 Parameter error byte 0x19 gt EEPROM test error Further error indications are described on the following page Version FHM 1 0 Page 15 17 DIGIFLOW User Manual emt e Cc Description of the Error Byte 0x00 no error 0x01 FLASH error at test STPO 0x02 FLASH error at test STP1 0x03 FLASH error at test STP2 0x04 FLASH error at test STP3 0x05 FLASH error at test STP4 0x06 FLASH error at
5. 1 Environmental Requirements Temperature limits Operating Transportation Storage Relative humidity Operating Transportation Storage Atmospheric pressure Operating Transportation Storage Version FHM 1 0 17 C to 45 C 18 C to 55 C 18 C to 45 C 30 to 75 non condensing 10 to 96 non condensing 10 to 96 non condensing 87 to 106 kPa 70 to 106 kPa 70 to 106 kPa Page 11 17 DIGIFLOW User Manual emt e Cc 72 Installation of the DIGIFLOW Board Install the DIGIFLOW board according to IEC 60601 and further relevant national standards The board must be fixed inside the main unit by 4 screws recommended 2 5 mm in diameter in combination with plastic space bolts recommended 10 mm Ensure that the board is fitted without any tension All environmental conditions must meet the prescribed specifications see chapter 7 1 The connection between the DIGIFLOW board and the Transducer was realised by a cable set which was enclosed the shipment The included HD SUB D jack should be mounted on the housing of the main unit use the enclosed screws Should it be necessary to shorten the cable use the pin assignment which was listed on page 7 After the mechanical installation connect the prescribed supply voltages and signals to the J101 on board AMP MICROMATCH male Attention A short circuit resulting from an incorrect assignment of the wires will damage the DIGIFLOW system
6. Bit 4 currently unused Bit 3 PVC tube detected Bit 2 Silicone tube detected Bit 1 flow values not ok or amplitude below 49 Bit 0 temperature of flow board to high gt 65 C Parameter 3 mean flow value integrated over 1 second in ml min Parameter 4 actual flow value in ml min Parameter 5 signal amplitude of the acoustic receiving signal in 100 is set to signal amplitude of 2 66 V Parameter 6 additional information for calibration purposes only for service Parameter 7 measured transition time in picoseconds Parameter 8 integrated flow value from R Trigger to R Trigger signal if enabled by jumper setting or integrated flow value over 10 seconds Parameter 9 board temperature in 0 1 C The data string will be finished by a carriage return 0x0d and a line feed Ox0a character Temperature Control Function The board temperature will be checked by the uController continuously parameter 9 of data string A temperature above 65 C will be set in the status byte The temperature alarm flag in the status byte will be cleared if the board temperature decreases below 60 C Should the board temperature further increase above 75 C a temperature error will be set in the error byte see chapter Troubleshooting The temperature control function should be implemented for control purpose only Independent thereof has to be enough cooling inside the housing in which the DIGIFLOW will be built in lt 45 C Versi
7. e customer unit or the combination with other units must be realised according to IEC 60601 and further relevant national standards Use of an electrical cauterising knife If you allow a cauterising knife to touch the measuring system or the extracorporeal tubes the flow display could be inaccurate Cleaning and Disinfection After use of the DIGIFLOW system the Transducer should be cleaned i e open the enclosure remove the tube and eliminate splattered blood or gel from the housing with a lint free cloth Use only agents for cleaning and disinfection which have been tested and approved by your local Health Authority Work in a well ventilated room Pay attention that no agents ingress into the housing Do not dip the whole Transducer into fluids Solvents Chemical solvents like alcohol aether acetone etc must not be used in AN or on any parts of the DIGIFLOW System Do not spill anaesthetics on the unit or on any accessories Chemicals like Foran Isofluoran could be very damaging for the system Version FHM 1 0 Page 4 17 DIGIFLOW User Manual e mi e Cc 3 Symbols and Abbreviations Warning must be observed strictly Important instruction Alternating current AC Type BF Safety class according VDE 0750 Part1 IPX1 Protection against or from dripping water H 3 gt Ce amp Connection for potential equalisation Version FHM 1 0 Page 5 17 DIGIFLOW User Manual e mi e Cc 4 Theory of Measurement
8. emtec DIGIFLOW the OEM Ultrasonic Flow Measuring Board eter e Mahat atan gt al naunan wminda yena pal fed User Manual All rights reserved Copyright em tec 2003 DIGIFLOW User Manual emt e Cc 1 Contents ARWN em i 5 2 5 3 6 1 7 1 7 2 7 3 74 Se A aa 2 Safety Instructtons ni San ni KAA AA nn a osse SA ann andai 3 Symbols and Abbrevi tions nn A A A E Eaa DRE 5 Theoryof Measurement tec anna eeni na AAA a 6 Specifications of the DIGIFLOW Board nennen ameen anas rn 7 Dimensions and Pin Assignmentis ea 7 Description of the Interfaces esen 8 Technical Data of the DIGIFLOW Board ea 9 Specifications of the Clamp on Transducer nennen anas 10 Technical Data and Range of Transducer aaa 10 Installation of the DIGIFLOW Board and Transducer aaa 11 Environmental Requirements ee enak 11 Installation of the DIGIFLOW Board nennen 12 Mounting of the Transducer enam 14 Troublesho 0 8211 pen dann ERE REDE SE SELE a e An a aaae nn Si An 15 Order and Service Procedures tn bnda kreds ee ea aa ia 17 Note All information in this document is subject to change without notice Names and data used in the examples are fictitious No part of this document may be reproduced or transmitted in any form or by any means elect
9. l info enrtec de In case that a unit seems to be malfunctioning please inform our service department before you send it to em tec Our support engineers will help you solve the problem Please use the original package if you send back the malfunctioning system to enrtec Enclose the shipment a detailed description of the failure Name and phone number or e mail address of the person who is able to give further information would be helpful em tec GmbH Service Department Lerchenberg 20 D 86923 Finning Germany Tel 49 8806 9236 0 Fax 49 8806 9236 50 Mail info emtec de You can get general information about new products and updates on our web page www enrtec de Version FHM 1 0 Page 17 17
10. low offset drift Version FHM 1 0 ultrasonic transit time method 114 2 x 95 2mm about 40mm incl space bolts and supply cables enclosed cable set AMP MICROMATCH Male 20 pole 5V 2 5 800mA 15V 5 130mA 6 Watts 15V 5 80mA RS232 CAN and SPI on request R Trigger TTL Input 1000 Hz 36 MHz 15 kHz to 18 MHz different patterns possible resolution 8 bit yes 0 to 9 99 LPM 0 01 LPM 0 0to 1 0 LPM 0 1 LPM offset drift 1 1 to 9 99 LPM 7 of actual value offset drift max 0 05 LPM Page 9 17 DIGIFLOW User Manual e mi e Cc 6 Specifications of the Clamp on Transducer 6 1 Technical Data and Range of Transducer i Dimension COT 012 332A 1 2 x 3 32 20 Ipm 60 x 28 x 41 COT 038 332 3 8 x 3 32 15 Ipm 54 x 25 x 38 COT 014 116 1 4 x 1 16 52 x 20 x 35 Protection class IP code IPX1 protected against dripping water Material of the housing aluminium Type of probes Z Type X Type on request Cable 5 x 2 wires 0 05mm shielded twisted pair 2 m Connector 15 pole High Density D SUB Tube material PVC silicon other materials on request Medium inside the tube water blood other mediums on request Version FHM 1 0 Page 10 17 DIGIFLOW User Manual emtec 7 Installation of the DIGIFLOW Board and Transducer The DIGIFLOW system consists of electrostatic sensitive devices Handle only at static safe work stations according to IEC 61340 5 2 7
11. on FHM 1 0 Page 13 17 DIGIFLOW User Manual e mt e Cc 7 3 Mounting of the Transducer Select the Transducer according to the used tube size and connect it to the installed DIGIFLOW board via the 15 pin High Density D SUB jack If the unit is running properly the included EEPROM will be readable and the DIGIFLOW board will receive the stored Transducer data automatically If you should have problems please see also the chapter Troubleshooting Before you start the measuring you have to clamp on the Transducer to the tube according to the following instructions Press the tube in the housing and close the Transducer The arrow which you can see on the enclosure should be in flow direction so you will get positive flow values Pay attention that the tube is not damaged or deformed on the position where you want to clamp on the Transducer The tube should also be straight unbent for reaching laminar flows and exact measuring values In case that you do not attain enough ultrasound coupling the tube must be greased by coupling gel before you clamp on the transducer Use the original coupling gel Order No 10385 only We do not guarantee sufficient ultrasound coupling for a longer measurement time if you should use other gels Version FHM 1 0 Page 14 17 DIGIFLOW User Manual emt e Cc 74 Troubleshooting During the start up and normal operation of the DIGIFLOW several self tests are running The result of
12. required J101 Pin 5 Operating voltage supply current of 800 mA is J101 Pin 6 required J101 Pin 7 J101 Pin 8 Ground connection J101 Pin 9 J101 Pin 10 J101 Pin 11 S S S J101 Pin 1 ransmitter serial data output from serial port J101 Pin 1 Pl interface input J101 Pin 1 PI OUT PI interface output J101 Pin 1 PI SCLK Pl interface clock input RESET Input signal to restart the DIGIFLOW board low active TTL level J101 Pin 18 R TRIGGER Input signal to define the measurement period of the flow measurement positive edge sensitive J101 Pin 19 CAN HI CAN 2 0B interface high line J101 Pin 20 CAN LO CAN 2 0B interface low line J101 Pin 1 J101 Pin 1 eceiver serial data input Option Description For switching to the RS232 level close JMP19 Pin 2 3 and JMP20 Pin 2 3 For switching to the TTL level close JMP19 Pin 1 2 and JMP20 Pin 1 2 To enable the R TRIGGER input close JMP21 Pin 2 3 Settings of the serial communication port Baud rate 38400 Baud Data bits 8 Stop bits 1 Parity none Version FHM 1 0 Page 8 17 DIGIFLOW User Manual emtec 5 3 Technical Data of the DIGIFLOW Board Principle of measurement Board size Total height Connection to the Transducer Connection to the main system Power requirements DC Interfaces Max scan rate ADC sampling rate Transmitter frequency range Zero flow offset adjustment Flow range Flow resolution Flow accuracy F
13. ronic or mechanical for any purpose without the express written permission of em tec GmbH Version FHM 1 0 Page 2 17 DIGIFLOW User Manual e mi e Cc 2 Safety Instructions Read this User Manual carefully before you start the installation Terms and Definitions DIGIFLOW OEM ultrasonic transit time flow measuring board which must be used in combination with a Transducer Transducer Device to transmit and receive ultrasound signals which will be analysed by the DIGIFLOW board Main Unit User Host system into which the DIGIFLOW was integrated by System the customer Customer User Person or company who uses the DIGIFLOW as OEM part in combination with their own system Indication The DIGIFLOW is indicated to measure the liquid volume flow in flexible plastic tubes It was especially designed for the integration into different user systems For this reason the intended use will be dependent on the user application of the main unit The environmental parameters and technical specifications which must be strictly adhered to are described on following pages Contraindication The DIGIFLOW is only constructed and sold for the above mentioned purposes Medical applications In case that the DIGIFLOW shall be integrated in a medical system the user has to observe the following instructions The DIGIFLOW was designed to monitor the function of the equipment which generate the flow e g oxygenator pump but NOT to monitor vi
14. tal patient parameters like a patient monitor This unit shall NOT be intended for use as the sole basis for diagnosis without confirmation by another established medical procedure Should the unit be used to control the liquid volume flow the user has to analyse the risk of the application and if necessary do flow board independent actions to minimize this risk Version FHM 1 0 Page 3 17 DIGIFLOW User Manual emt e Cc Liabilities and Responsibilities The user is responsible to use check and maintain the DIGIFLOW according to this user manual Furthermore he is liable and responsible for updating approvals and reviewing the technical file of the main unit in which the DIGIFLOW was included em tec is not liable or responsible for any consequences arising out of use of the DIGIFLOW which is not compare with the instructions or specifications of this manual General Safety Instructions The DGIFLOW was developed and manufactured according to the newest technologies and production procedures state of the art Before installation the user has to read this manual carefully to prevent hazards and injury for the user or damage to the user system in case of improper use The service for the DIGIFLOW may be carried out by em tec only For this reason the malfunctioning systems must be shipped back to em tec em tec recommends that the system should be calibrated every 2 years Electrical Safety The integration of the DIGIFLOW in th
15. test STP5 0x07 RAM error at test STPO 0x08 RAM error at test STP1 Ox0A RAM error at test STP2 0x0B RAM error at test STP3 0x0C RAM error at test STP4 0x0D RAM error at test STP5 0x0E Watch Dog Timer defect OxOF error in task handling 0x10 error during JMP Check 0x11 internal ADC error status STPO 0x12 internal ADC error status STP1 0x13 internal ADC error status STP2 0x14 internal ADC error status STP3 0x15 internal ADC error status STP4 0x16 internal ADC error status STP5 0x17 internal ADC offset error 0x18 5V test error 0x19 EEPROM test error OxlA Board temperature error gt 75 C Ox1B 15V check error Ox1C 15V test error 0x21 EEPROM CRC error 0x22 Calibration factor inconsistent Version FHM 1 0 Page 16 17 DIGIFLOW User Manual emt e Cc 8 Order and Service Procedures DIGIFLOW DIGIFLOW Board Order No 11088 including Cable Set and User Manual Accessories Transducer COT 012 332A tube size 1 2 x 3 32 Order No 11056 Transducer COT 038 332A tube size 3 8 x 3 32 Order No 11048 Transducer COT 014 116A tube size 1 4 x 1 16 Order No 11032 Ultrasound Coupling Gel Order No 10385 Please contact our sales department if you want order the DIGIFLOW system or accessories Do not hesitate to get in touch with our salesmen if you should have any questions em tec GmbH Sales Department Lerchenberg 20 D 86923 Finning Germany Tel 49 8806 9236 0 Fax 49 8806 9236 50 Mai
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