HDM99 User Guide
Contents
1. Response of HDM99 after sending the command Adm 12716 30 25 233 1496 38 7 99 30 06 0 00 4 96 2000 1200 20000 12000 CR LF 79 characters Suppressed characters in front of the decimal point are shown as The measuring values are send by the HDM99 in the following order Conductivity in uS cm 9 signs Temperature in C 7 signs Pressure in mmHg 8 signs pH 5 signs VDC in V 6 signs VACin V 5 signs Vbattery in V 4 signs Flow in ml min 5 signs Frequency in Hz 6 signs Quantity in ml 6 signs Event 6 signs CR LF 2 signs The values are separated by 7 HDMView 65 HDMView Version 3 02 HDM View is a program which allows the collection and visualization of data obtained by measurement with HDM99 Data are transferred via a serial interface from the HDM99 to the PC HDM View is compatible with Windows 95 98 Windows NT and Windows 2000 The program is divided into four sections Main Window Digital view of all channels Chart Window Chart view of up to four channels Alarm Window Select and view alarm limit for all channels Analysis Window View and analysis of recorded measurement All four windows may be used simultaneously HDMView 66 Main Window I HDMVIEW 3 01 Functions Settings Measure Info Conductivity Temperature Pressure pH 10 285 36 90 700 I 1 D 1 I I D D 1 I 1 I 0 0 10 0 20 0 0 0 50 0 100 0 700 0 0 0 1500 0 0 0 5 0 10 0 14 0 mS cm Celsius mmHg VBAT 0 012. H D B n 40 Bn 40 B please Please Please enter enter enter ist value znd value Jrd value for quit for quit for quit press press press EHTERX gt ENTERS gt EHTERS temperat E E 61 3 H 4n BD Please enter 4th value 61 8 for quit Press HENTER The calibration is to be accomplished as follows Operate the function key temp and follow the instructions on the display The temperature sensor is dipped into a fluid with known temperature this temperature is then entered to the HDM99 via the numeric keyboard and confirmed with gt ENTER lt The calibration points should be at the following points 20 C 30 C 36 C 38 C 45 C and 80 C After you have entered the last value press the function key stop input If a higher precision is required at temperatures around 80 C you can enter further calibration points at 60 C and 85 C In this case choose another input The calibration value must be entered only if the displayed values are stable adjust Hau temp adjust temp C tpt 1 8 ip2 21 0 tpi 40 5 Lpdt 61 8 L t tpe data saving how temp C ipi 48 tpz 1 ip3 61 tp 21 ipeo tpe amp Qo c cu adjust H bion Lemp adjust data saving Fro adjust HD 9a temp adjust invalid data temp C tpl 1 8 ipz 21 8 ipi 21 8 ipd 48 5 ips 61 8 tp 43 Calibration and Verification
3. The pH and voltage measurement is adjusted at two points The temperature and pressure measurement is adjusted at minimally two points alternatively up to six points The advantage of more than two calibration points is the higher precision of the measurement as the non linearity of the sensors will be equalized The sequence of the calibration in reference to the level of the values is insignificant Please note that each value may be entered only once since the system does not accept the data otherwise The display will show invalid data The conductivity calibration results from measuring the cell parameter Only one calibration point is necessary here The calibration of the flow measurement results from measuring of the impulses per liter Up to 15 different sensors can be calibrated Only one calibration point is necessary for this Should you be uncertain if you have entered all values correctly at any point in the run of the calibration of the device choose the function cancel Then no calibration will be accomplished and you can start again Should a calibration prove to be incorrect you can reset this calibration by the function calibration reset within the installation menu Calibration and Verification 42 Temperature Calibration Because these sensors do not drift normally no calibration is necessary after manufacturing Lenmp tenmp temperat Lemperat temperat SE C BE I mm S Im sd
4. 0 01 4 96 I I LU I I I L I I L 1 I 40 0 0 0 40 0 0 0 20 0 40 0 0 0 2 0 4 0 7 0 Volts volts Volts Flow Quantity 472 473 H H l H H 1000 2000 0 S000 10000 ml min ml In this window all measured values which can be obtained using the HDM97 are shown on a combined bar digital display If the pH sensor or the temperature conductivity sensor are not connected the message Disabled will be displayed accordingly If values are outside the Select Alarm Ranges pre set measuring ranges the relevant digital display flash red The scales on the bar display can be selected with the mouse and changed 67 HDMView Menu items Functions Chart View Analysis Opens the window where up to four measurements are interactively shown in a diagram Opens the window which is used to show measured value files in diagrammatic form for analysis HDMView 68 Alarm Window Select Alarmi anges Conduchvity Range Temperature Range maian 20 0 In this window you can select minimum and maximum values for some of your measurements They will be saved in the HDMVIEW INI file If the measured value falls outside the alarm range the relevant bar will show a flashing red light Menu items Settings Setup This is the option for configuring your PC hardware Select your HDM Model you have HDM90 HDM96 HDM97 HDM99 as well as your serial interface COM1 COM10 Measure Start Measure Starts measurem
5. 0 03 mS cm Pressure 190 00 kPa 0 2 kPa 110 00 kPa 0 2 kPa 50 00 kPa 0 2 kPa 10 00 kPa 0 2 kPa 0 00 kPa t 0 2 kPa Open Pressure Inlet 10 00 kPa 0 2 kPa 50 00 kPa 0 2 kPa 80 00 kPa 0 2 kPa pH 355 2 mV pH 1 0 02 177 6 mV pH 4 0 02 118 4 mV pH5 t 0 02 59 2 mV pH 6 0 02 0 mV pH 7 t 0 02 59 2 mV pH 8 0 02 118 4 mV pH9 0 02 177 6 mV pH 10 0 02 355 2 mV pH 14 t 0 02 59 Maintenance and Care Voltage 35V 0 05 20V 0 05 10V 0 05 OV 0 05 10V 0 05 20V 0 05 35 V t 0 05 35 V t 0 05 Frequency 1000 Hz 1 Hz 10000Hz 1Hz 100000 Hz 1 Hz Specifications 60 Specifications Conductivity 0 to 23 99 mS cm in 4 ranges quadro pole electrode Precision 12 5 16 0 ms cm 0 03 ms cm otherwise 0 3 of full measuring range Range Resolution 0 0 19 99 uS cm 0 01 uS cm 20 199 9 uS cm 0 1 uS cm 200 1999 uS cm 1 uS cm 2 00 23 99 mS cm 0 01 mS cm Reference temperature 25 C Temperature compensation with 2 07 per C adjustable from 0 00 to 4 00 per C Temperature Range 0 100 C Resolution 0 01 C Accuracy 25 40 C 0 07 C otherwise 0 1 C Pressure Range 700 1600 mmHg Resolution 1 mmHg Accuracy 3 mmHg 20 23 C with Option BP Range 700 700 mmHg Accuracy 0 300 mmHg 0 8 mmHg otherwise 2 mmHg pH Range pHO 14 Resolut
6. Calibration and Verification 40 Handling of Standard Solutions IBP Instruments standard solutions are produced under ISO9001 quality management They are traceable to NIST and PTB Standards Reference Materials and are sealed with tamper evident packaging To ensure standard solution and calibration verification accuracy Keep solutions tightly capped to avoid evaporation Do not return used solutions to the storage bottle Do not remove solutions from their original bottle Keep the solutions in a cool place Use only fresh reference solutions for calibration and verification Use the solution immediately after pouring evaporation will cause errors Discard solution the appropriate number of days after opening the bottle Discard solution after the expiration date Calibration of the HDM99 HDM99 HDH99 HMD HDH99 HOMS9 mainmenu adjust adjust adjust adjust please please enter enter DREN t code code 1704 Code conduct ok conduct temp for quit for quit press press gt Enter lt ter pressure other channels The entire calibration of the device is software controlled Operate the function key adjust in the main menu to reach this function You will be asked to enter a code via the numeric keyboard This code is also 1704 and must be confirmed with gt ENTER lt After that you are in the adjust menu 41 Calibration and Verification The adjustment of the individual channels is slightly different
7. Conductivity Calibration Reference temperature conduct conduct ad just enter enter ref temp ref tenps ret temp old 25 C bot boat neu 18 C t coeff Se 2 5 1 8 Ee saving rum id 2 878 now emm E E rellparanm input or qui for suit EEUU ETE CES cellpar press press 8 6858 EHTER amp EHTER amp E ice gt wel gt cancel gt wel The usual reference temperature is 25 C For special applications other values can be used Use this function only if you are aware of the consequences By using wrong values you will get a wrong conductivity value You reach this function by calling the menu point ref temp There you can enter the new reference temperature via the numeric keyboard and confirm it with gt ENTER lt By activation of the ok key the new reference temperature will be saved in the software Calibration and Verification 44 Temperature coefficient For dialysate the temperature coefficient of the solution to be measured is 2 070 This is the value for NaCI Solutions For special applications this factor can be changed conduct aeo jeg i coeff enter enter S e Lee deet Aere ent 0192 070 Gg bu x new 2 4825 ref temp 2070 2 405 c f ze 7 m cellparam or ui or qui Soe press press 8 6858 EHTER amp EHTER amp Use this function only if you are aware of the consequences By using wrong values you will get wrong conductivity values You reach th
8. Voltages above 40 V can be dangerous Take extreme care while working with higher voltages To avoid electrical shocks and or damage to your measuring system do not apply excess voltages above 40 V to the instrument Do not open the device To avoid current loops use the RS232 Interface only with notebooks which are not connected with the battery charger Federal law restricts the use of this device to sale by or on the order of a physician 1 Table of Content ee teen PR NM RE 3 Applications TOM co D M 3 EC Declaration of Confort 4 Delivery Content ues eene 5 Welsh e 7 xor oes OVGIVIGW EE 9 Measuring Chablis ioo denda eet Egeter 9 Battery E ee EE 10 Use of the Flow Through Adapter or ENEE SEELEN ENER 11 Switching on the unit ed HE 12 Mail En EE 12 Installation eu Ea 14 KE Un e Le T P 14 SWwiteh off LEE 14 elt RETE 15 System Error MESSAGE ss oes e EE 16 1 MEM Memory EITOF iiie teeth ate Sete het xara bebe I koi e dte edi agnus 16 2 ADC AD Converter EtfOr ecie etn ettet atte ES EENEG 16 3 Od Cecks rn ELO oet o aded God e pere nx Que ak dee bun c e 17 4 SYS Watchdog Ei tir cases sre t on ee ERES UIDI ES EDU UU RUE 17 MC ECT Additional Information eet ae tt ete tide 17 Measurement mm 18 T
9. all values relevant for the conductivity measurement will be indicated once more With the ok key the data will be saved conduct conduct ad just Please Please cellparam enter enter old 0 6050 cell cell 10 7124 Parameter Parameter DEW iy CP dat ref temp ae 0 8050 0 7124 i wi input f it E it L coeff ST H or qui or qui cellpar Bees NUS 2 405 ZENTER gt EHTER lt cel E ice Calibration and Verification 48 Pressure Calibration Because these sensors do not drift normally no calibration is necessary after manufacturing adjust adjust adjust adjust adjust adjust Pressure Pressure Pressure Pressure Pressure Pressure mmHg mmHg mmHg mmHg aa mE nd mem 1k H t ik D ch 1k H DI k D ch Please Please Please Please enter enter enter enter ist value 2nd value Jrd value 4th value for quit for quit for quit for quit Press press press press EHTER X ENTER X ENHTER amp EHTER amp Operate the function key pressure in the adjust menu The calibration of the pressure measurement works like described for the temperature calibration at up to six points After the input of two points you have the choice whether to terminate the calibration function stop input or to enter further values function another input The pressure probe is applied with known pressure and then the values will be entered successively via the numeric keyboard and confirmed
10. any measurements you must shake the connector to assure that any air within the system escapes In the Dip Mode temperature and conductivity can be measured For this mode open the screw cap at the upper end of the connector and extract the combined electrode You must not remove the tube covering the probe carrier Dip the electrode into the media up to a level above the holes in the covering tube By moving the electrode you assure that the trapped air can escape and the temperature is well balanced NOTE Do not touch the surface of the electrode with your fingers Introduction 12 Switching on the unit The unit is switched on and off with the keys marked I for on and O for off The unit also switches itself off automatically when the switch off time after the last key activation is over or the battery is fully discharged Main Menu After switching on the device you receive an information menu for approx two seconds After that the system goes back to the last setting In some cases you will receive the following main menu HDM99 main menu Activation of the function keys leads to F1 F2 display of the info menu F3 display of the measuring menu F4 display of the calibration menu F5 display of the installation menu FB 13 Introduction Info From the root menu via info you receive the following information There are device specific data like product name software version and version date as well
11. as the serial number of your HDM99 info HDM99 version 3 DD UE www ibprnt com F1 F2 F3 F5 F6 Introduction 14 Installation AE HD Ou install Install install main menu install lanauaae 5prache switch of f adjust Language By pressing the function key beside the menu point language you will reach the language choice With the keys beside the arrows you can select the desired language for your work with HDM99 The selection is shown inverted With activation of ok you will return to the installation menu After altering the language the entire menu leadership and display appears in the chosen language Switch off time The switch off time is the time after the last key activation At the end of this time the device switches off automatically The activation of the function switch off leads to a selection of times which can be selected with the arrow keys The chosen time is shown inverted and taken over with ok as new switch off time in the installation menu If gt lt is chosen the automatic power shutoff is cleared the device remains active until it is switched off manually with the key gt OF F lt 15 Introduction Adjust reset With the adjust reset the calibration values for all measuring channels can be set to basic values These basic values are the calibration values of the company conducted calibration Operate the function key beside this menu point You will have t
12. that voltage sways which are shorter than the selected damping period can not be recorded Voltage display In the beam display the momentary value of the voltage is displayed The voltage measurement in the plotter mode is particularly feasible for the measurement of voltages which are subject to no fast sway therefore DC voltages and low frequency AC voltages Filter By choice of the function key filter you will receive a time table with periods between zero and 10 seconds to select Those can be operated in the familiar way with the function keys beside the arrows An average value of the measured voltage over the selected period is calculated and reported Please note that voltage sway which is shorter than the selected filter period can not be recorded Measurement 36 Voltage measurement oscilloscope mneazure parameter voltage voltage Uert T parameter parameter parameter Wu 18Unlt valtase yoltage voltage aM E t u B A Time range By activation of the function key param you will receive a menu which allows you to change the fime range in which the graph will run through horizontally once Long term measurements up to twelve hours are possible Since you do not have all possible times presented simultaneously a black beam on the right side shows that above or like in the example further options hide themselves below The selected time range is shown inverted To change the time range operate th
13. values the reference invalid data appears after confirming with ok at correct input the data will be saved and you will return to the menu for the parameter setting Measurement 30 Flow measuring flou flow ml min _1049 COST TOONS DUNES euews H 1000 2000 Att 2sec quantity The current flow rate and the amount of flown liquid will be shown The amount of flown liquid can be restored to zero by pushing Reset The Parameter Button leads to the selection menu for the flow rate reduction An average flow rate is determined by setting a time limit in this display menu The selected reduction value is displayed in the measurements window behind the Att Sign Management of different sensors For the measuring of the flow different sensors will be used according to the measuring unit The HDM99 governs up to 15 different sensors For detecting the different sensors a code is put on them This code is used for the internal choice of calibration data The number of the connected sensors will be shown in the display Any sensor can be used which has an output signal that delivers a frequency proportional to the flow running The amplitude at the entrance of the HDM99 may have a range of 5 24 V For the current supply of the sensors 5 V DC 10 mA are available at the connection of the flow measuring 31 Measurement Connection occupancy of the plug connection for the flow measurement Ee RES Codes for th
14. warm water and household dish washing detergent Lime and hydroxid crusts can be dissolved by a 1046 acetic acid solution In each case the measuring cell needs to be washed with deionized water after the cleaning Basically the conductivity measuring cell does not decay over time Particular measuring media for example strong acids and caustic solutions organic solvents or too high temperatures shorten the service life considerably and or lead to damage 57 Maintenance and Care Caring for the conductivity temperature electrode Thorough cleaning of the electrode is particularly important for measuring low conductivities Water soluble substances must be removed by rinsing with deionized water Remove lime deposits with a 1046 acetic acid solution To do this immerse the electrode in the solution for 24 hours then rinse it thoroughly with deionized water Do not touch the electrode surface with your fingers If necessary clean the surface with acetone Calibration intervals When delivered new from the factory each device is adjusted before shipment To ensure reliability the different measuring channels have to be calibrated at fixed intervals to examine their precision This can be done by measuring known sizes for instance standard solutions or proof voltages If the measured values should deviate from the below indicated permissible limits a new calibration of the instrument is necessary We recommend the following intervals
15. After activation of the function key time range you will get to a menu which allows to change the time range horizontal axis of the graph Long term measurements up to twelve hours are possible Since you do not have all possible times presented simultaneously a black beam on the right side shows that above or like in the example further options hide themselves below The selected time range is shown inverted To change the time range operate the function keys beside the arrows upward or downward When you have selected the suitable time range for your application return to the temperature measurement with the activation of ok The length of the horizontal axis of the graph now corresponds to the chosen fime range 25 Measurement Unit The unit for the pressure measurement can be chosen The values are converted when the unit is changed A new calibration is not necessary The selection of the unit is done in the familiar way with the function keys beside the arrows With ok you return to the pressure measurement where now the results will be shown in the newly chosen unit Balancing an offset Caused by drift of the pressure probe the pressure display may sway slightly around zero With the function tare the display is set to zero You must not apply pressure to the HDM99 during this function This is assured when the pressure tube is not connected Then the environmental pressure represents zero The choice of the function key
16. UBP User Guide Preface The information contained in this is subject to change without notice IBP Instruments GmbH its distributors and subsidiaries take no responsibility for any errors or omissions in this document The contained software is being delivered on the basis of a general licence contract or in single license Use or reproduction of the software is allowed only in agreement with the contractual arrangements Whoever transfers this software and or this manual on magnetic tape diskette or any other media except for the purpose of own use without written authorization of the IBP Instruments GmbH is liable to prosecution Copyright C 1997 2002 IBP Instruments GmbH All rights reserved Publishers IBP Instruments GmbH IBP Medical Inc Sutelstr 7a 3853 E Edna Ave D 30659 Hannover Phoenix AZ 85032 Germany USA Phone 49 511 651647 1 888 338 8742 Fax 49 511 652283 1 888 338 9838 Internet http Awww ibpmt com http Awww ibpmedical com E Mail HDM Support ibpmt com HDM Support ibpmedical com Manual author Dipl Ing Werner Pfingstmann Christopher Weed Rev 1 August 2002 Temperature Coefficient for B Braun now 2 10 C Rev 2 September 2002 Temperature Coefficient for Gambro now 2 07 C Conformity Declaration in accordance with Medical Product Law Flow Measuring extended Window Entrance Test added Specification Temp Accuracy 25 40 C 0 07 C otherwise 0 1 C This user guide is only valid for software rel
17. View Recording Start Starts recording the measured values that can later be saved in a file While recording a red LED is shown in the lower right hand corner of the window Stop Stops recording measured values HDMView 72 Analysis Window Analysis allows the loading and display of measuring files as a graph The graph can be traced with a cursor The actual x and y values are printed below the graph In addition numerous values are listed in a table Max Maximum value Time Point of time of the maximum value Min Minimum value Time Point of time of the minimum value Mean Mean value Dev Standard deviation 73 HDMView Menu items File Open File Information Save Time Range Print Quit Options Change Scales Select Time Range Show Remove Legend A file dialog box enables a previously recorded measurement to be selected and shown as a graph Shows when the file has been saved as well as any comments Allows certain time range for your measurement to be saved This time range must be determined using Select Time Range The complete window will be printed Closes the window Allows a multiplication factor to be inserted for each graph which is shown above the respective cursor Allows the selection of a time range that can be saved with Save Time Range A legend appears offering a number of modifications to the gr
18. aph s appearance e g its colors
19. asurement 20 Conductivity measurement neasure Parameter conduct conduct mS cm 1 405 d Standard User TC 26mS cm Baxter 2nScm B Braun 288 1S cm 2 0 min Fresenius Gambro 28uS cm 3 80 min 4 5 min 6 8 min After activation of the function key param you will get to the menu which allows you to change the time range horizontal axis of the graph or the y range vertical axis and also the temperature coefficient By activation of the function key for the range to be changed you see the selection menus At the time range long term measurements up to twelve hours are possible Since you do not have all possible times presented simultaneously a black beam on the right side shows that above or like in the example further options hide themselves below The selected time range is shown inverted To change the time range operate the function keys beside the arrows upward or downward When you have selected the suitable time range for your application return to the temperature measurement with the activation of ok The length of the horizontal axis of the graph now corresponds to the chosen time range After the choice of the field y range four fixed measuring ranges can be selected in the already explained way with the function keys beside the arrows If you choose auto the HDM99 automatically adjusts the measuring range so that an optimal graphic representation of the running measurement is assured 21 Mea
20. ature compensation of the pH measurement the device offers two possibilities The solution temperature can be measured via the conductivity and temperature electrode or entered by hand The chosen type of the calibration is check marked in the menu point measure t comp or enter t comp If you select measure t comp no further input is necessary The temperature will be measured via the measuring cell and you will get to the pH measurement automatically By choice of enter t comp you will be asked to enter the solution temperature via the numeric keyboard After confirmation with gt ENTER lt you will return to the menu for the parameter setting By choice of the function calibration you will reach the pH calibration directly The device uses 25 C as default 5 Calibration and Verification How to calibrate pH Materials needed HDM99 meter with attached pH probe conductivity temperature probe optional high and low value pH Standard Solution see below two clean glass containers Before calibration the type of temperature calibration must be selected already Prepare two buffer solutions The two buffers should not differ more than two activation decades Choose for example pH4 and pH6 For the measurement remove the protection hood carefully Rinse and dab the pH electrode with distilled water before dipping it into the buffer If necessary wash and dry the temperature sensor likewise and put it into the measuring beaker Wait unt
21. conduct conduct conduct conduct conduct conduct m m mS cm OFL 13 53 t coeff WEE LS KH old 4 6658 28mS4cm d o 7 5 newt B 5155 ZC Please RSEIESOIO 2BBLS cn Please enter val Z8pz cm D0uS oCh enter val ref temp i360 Gab E t coeff HENTER ENTER lt 2 070 ok p is D act 7 In this function the measuring range will not be adjusted automatically The adjustment for dialysate should be in the area of 13 14 mS cm Therefore the measuring range must be 0 20 mS cm If the measuring range is too small the device indicates the overflow with gt OFL lt above the beam display Via the menu point measure conduct you can choose the correct measuring range with the arrow keys During the calibration the standard solution should have a temperature of approx 25 C When the measurement value in the display is stable the conductivity value of the standard solution can be entered via the numeric keyboard and confirmed with gt ENTER lt After the calibration all values relevant for the conductivity measurement are indicated once more With the ok key the data will be saved 47 Calibration and Verification Enter cell parameter It is sufficient to enter the cell parameter of the electrode if it is known This is profitable for an exchange of the electrode Choose the function input cellpar Enter the cell parameter via the numeric keyboard and confirm it with gt ENTER lt Subsequently
22. des comprehensive information on the theory and practical application of pH measurement http www ph measurement co uk Acids and Bases pH Tutorial http www science ubc ca chem tutorials pH 29 Measurement pH calibration in the measuring mode adjust measure pH measure pH PH Param PH FH grad 995 35 82 O 85 temp 25 C mm pecu B T 12 a H 12 PH waluel Please Please nld 3 82 data enter enter new 4 88 fading lst value zn d value via PH valuez 04 00 06 00 zia s s for quit for quit E Press press gt EMTERS EHTERZ lok Calibration Before the adjustment the kind of temperature calibration must be set already Prepare two buffer solutions The two buffers should not differ more than two activation decades Choose for example pH4 and pH6 Carefully remove the protection hood for the measurement Rinse and dab the pH electrode with distilled water before dipping it into the buffer If necessary wash and dry the temperature sensor likewise and put it into the measuring beaker Wait until the display remains stable then enter the pH value via the numeric keyboard Confirm your input with gt ENTER Then wash and dry the electrode and dip it into the second buffer When the value of the second buffer is entered the display shows the actual calibration If thereby the graduation grad is lower than 85 the electrode could be worn out and must be replaced by a new one If you try to enter two equal
23. e different sensors 1 We i ND IBP Sensor 6 Sensor alQ SE ellen Z Z 5 alle E Q Z J Q Z J tA lt Q Z J Q Q Z CA lt Q Z gJ CA lt oo QI uu Az QQ Q uu AZ ZZ LN tA tn tA tA A lun lt lt lt lt lt lt lt Z Z Q Z J LA afla 22282222 8 Z s CA lt Sensor 6 8 Less Se METUUNT EA Q Z uQ Z BE nln lt lt If you use your own sensors please choose a code beginning at number 9 The numbers 1 7 are reserved for the IBP sensors Measurement 32 Frequency Period time Counter HDM98 measure frequency gt period times event measure measure measure event period time frequency count s msec 291 392 929 By operating one of the three functions you get optionally to the measuring menu for frequency period duration or event measuring All measurements can be done up to a frequency of 250 kHz In the event measuring the counted events can be reset to zero by operating reset 33 Measurement Pool menu Measunre conduct TC 2 07 mS cm 1 222 temperat SC 24 13 pressure kPa T 9 flo w n ml min 1049 Pool is a menu in which the following channels are displayed simultaneously Conductivity Temperature Pressure Flow All necessary settings e g the temperature coefficient for the conductivity m
24. e from PC to HDM 9 pin D Sub from PC female 1 2 3 4 5 6 8 9 X LA 1 2 3 9 pin D Sub to HDM female 63 Interface Data transfer To receive measurements by the HDM99 via the serial interface the following abbreviations must be sent via the interface The entire communication takes place in readable ASCII characters Command Reaction to HDM99 of the HDM99 HDMCMO Starts background measurement HDMCMF Ends background measurement MRES Reset unit counter for flow HDMTARA tares the Pressure measurement hdm Fetches measured values via the RS232 interface Procedure Before the measurement values are transmitted the HDM99 must be initially set to the HDMCMO command Subsequently the measurement values can be transmitted with the hdm command The HDM99 sends a command line after the hdm containing 77 characters followed by CR LF MRES and HDMTARA commands can be executed at all times When no farther measurement data is sent via the serial interface finish the transmission with the HDMCMF command Notes Any changes made to the settings of the HDM99 during the serial transmission flow rate reduction temperature compensation of conductivity measurements etc may cause measurement errors All changes and modifications of the settings should be made prior to the data transmission Interface 64 Format of Data
25. e function keys beside the arrows upward or downward When you have selected the suitable time range for your application return to the temperature measurement with the activation of ok The length of the horizontal axis of the graph now corresponds to the chosen fime range 37 Measurement Voltage Display In the beam display the R M S value of the voltage is shown The voltage measurement in the oscilloscope mode serves mainly for the measurement of voltages subject to higher frequency therefore also AC voltages Measuring range By activating the function key y range it is possible to select a measuring range for the vertical axis of the graph via the arrow keys which allows a maximum resolution of the voltage graph The chosen measuring range is shown inverted With the ok key you transfer it to the voltage measurement Trigger With this function key you will get to a menu where you can adjust the mode of the measurement triggering Press the keys beside the arrows until the desired triggering is presented inverted In detail the options mean No trig The applied voltage is shown without triggering AC The rising edge of the average value of the applied voltage is triggered AC The falling edge of the average value of the applied voltage is triggered DC The rising edge at the zero passage of the voltage is triggered DC The falling edge at the zero passage of the voltage is triggered Take over the chosen triggering wi
26. e manual under flow measurement Calibration and Verification 54 There are three different ways to calibrate a flow sensor Given amount of flow in ml min or l min Given number of impulses per liter e Given amount of the quantity that has flown through Generally the sensor should be calibrated in the middle of the used measuring range Example The sensor has a measuring range of 100 2000 ml min Operation range 100 600 ml min Then the calibration should be done around 350 ml min Given amount of the quantity that has flown through This way of calibration should only be used if no other possibility is available Ensure the constant flow through the sensor Then enter the amount of the quantity that has flown through with the chosen unit and confirm with Enter Check the calibration once again This way the calibration is complete Given number of impulses per liter This type of calibration should be used if the value is known Enter the value for the number of impulses liter and confirm with Enter This way the calibration is complete Given amount of the flown quantity This type of calibration is the safest way to get to an exact result Here the amount that has flown through the sensor within 5 10 min will be measured and this value will then be entered The HDM99 uses the value to calculate the impulses liter If you change to the menu point enter impulse after this calibration you will get the new calibrat
27. eases 3 6x x z 0 9 Safety Instructions For your own safety and the safety of your patients follow these important safety instructions as well as other safety instructions noted throughout this User Guide Please read the User Guide in its entirety before using the HDM99 Keep away the device from unauthorized persons Never use the HDM99 on a dialysis machine to which a patient is connected Never use the HDM99 on a dialysis machine with a connected battery charger Never use the HDM99 in place of the hemodialysis machine s primary sensors Operate the instrument only in a dry environment and do not touch it with damp hands Ensure that no fluids intrude into the interior of the device or into the sockets at the front Apply a clean Transducer Protector to the nozzle for the pressure measurement Verify accurate function of the meter before taking measurements or whenever inaccurate readings are suspected Avoid a discharge of static electricity over the sockets It could lead to the destruction of your instrument Before touching the sockets and lines that are connected with them dissipate any static electric charge that may be present in your body Only calibrate the HDM99 if you have understood the consequences to their full extent Use only the recommended standards later in this manual Do not use abrasive cleaning agents and or full strength bleach or acid to clean HDM99 or the electrodes as this will cause damages
28. easurement or the unit for the pressure measurement are taken from the corresponding measurement menus and can also only be changed there Measurement 34 Voltage measurement plotter parameter voltage voltage Uolt 12 93 P a Haw 10sec Van laVolt z Bmin 3 H8min d Dnin 6 4min Time range By activation of the function key param you will receive a menu which allows to change the time range in which the graph will run through horizontally once Long term measurements up to twelve hours are possible Since you do not have all possible times presented simultaneously a black beam on the right side shows that above or like in the example further options hide themselves below The selected time range is shown inverted To change the time range operate the function keys beside the arrows upward or downward When you have selected the suitable time range for your application return to the temperature measurement with the activation of ok The length of the horizontal axis of the graph now corresponds to the chosen time range 35 Measurement Damping By operating the function key damping you will get a time table with a choice of periods between zero and ten seconds Those can be chosen in the usual way with the function keys beside the arrows upward or downward By use of the chosen period of time a gliding average value of the measured voltage will be calculated and put on display Please note
29. easy care instrument Like all measuring instruments there is a minimum of maintenance and care necessary to ensure that all functions work flawlessly Operate the instrument only in a dry environment and do not touch it with damp hands Ensure that no fluids intrude into the interior of the device or into the sockets at the front If this ever happens open the device and remove the batteries Sink the whole device into a vessel with distilled water overnight Afterwards dry the HDM99 and send it to your distributor for repair There are no parts in the HDM99 which you can repair yourself Contact our technical support team in the event of any malfunction If the device should become damaged or malfunction send it to your distributor for repair Storage Keep the device in a dry place Suitable is for example the original packaging in which you have received the HDM99 or the carrying case offered by IBP as accessory If you do not use the device over a longer period of time you should connect it to the included charging device about every two weeks for one hour to avoid exhausting the batteries Cleaning Never clean the device with any fluids In case of pollution you can wipe the surface of the HDM 9 with a dry and clean cloth For measurements in the lower conductivity range the cleaning of the conductivity temperature measuring cell is recommended Remove water soluble substances by rinsing with deionized water fats and oils with
30. emperature measurement eeeseeeeeeeeeeeeeeeeennneenn nennen trnnnnnntn nnns nnne 19 Conductivity measHrelfIBPIL ss oho dece d p que tret weds sade bag E RE nO d dS e ui ERE REA 20 Temperature GOGffcIends EE 21 Pressure measurement siiras 24 Further possible measurements eiecti eet cued Eeer nso nime d a pad 25 PH Measurerent EE 26 Fow T BBSUEIDIG RE 30 Frequency Period time Counter EEN 32 eel mmc HU 33 Voltage measurement plotter cuneta mw ite Doer eee rale co ctum e ned deut nh 34 Voltage measurement oscilloscope eeeeeeeeeeeeeenenenn nenne 36 Ballery N re e e E A doas t ia ua ah geuteree hone dh cedat edi ub xe Nude UN I UR RA UR NEM 38 Table of content 2 Calibration and Verification esses nnns 39 Handling of Standard Soltis E 40 Calibration of the HDMoo nmrnenennhenene nnn nnne nnns nain 40 Temperature GallDIaUOFi tee Ett t eor tO plac eom de te drea Eas 42 Conductivity CalIDRANON pete EE NM MS 43 Pressure Calibration n o etre ete cele E Ee tet d edt 48 pil ee en EE 50 FIOW Gali CH el 53 Voltage 8 97 I ojg tion Tt 55 Maintenance and Gare eet iecit ee tee eei SEENEN 56 SDSGITICANOTIS ceo tette BO NO Obiter die otc ta eet 60 PGzInterface ee EE 62 RS 232 Interface eset cete ei EEN 62 Interface from PC to HDM emen nnnn
31. enn then enhn nene nn eren nn nane 62 ID3ta transtersc Sce ena cos n c E Kr EE 63 Belg uie Data WEE 64 alu eR 65 Maine MIRIOW sio ctc emet In De Ie ee rice ETIN NUS 66 AANA WINGOW M 68 bar WINDOW ERRARE 69 Analysis leie EE 72 3 Introduction Introduction The HDM99 is a self contained hemodialysis test instrument designed for the measurement of Conductivity Temperature Pressure pH Flow Voltage Frequency Period time Pulses This innovative device has been designed to be user friendly reliable and rugged enough for the demanding needs of hemodialysis technicians In addition the HDM99 may also be used for environmental measurement and other non medical applications The measured values are displayed numerically on the instrument s large screen The instrument also may be connected to a computer and using the supplied software displayed stored and analyzed Please take a few moments upon initial receipt of your shipment to ensure that all the items listed below have been included In the event of a discrepancy contact your supplier immediately Be sure to read this User Guide in its entirety before first using the product Applications for use The HDM99 may be used by hemodialysis personnel to test the conductivity temperature pressure pH and flow of the dialysate solution used with hemodialysis delivering systems The HDM99 may also be used to test the conductivity temperature and pH of acid and sodium bica
32. ent Stop Measure Stops measurement 69 HDMView Chart Window Me Cpu Fesge F This window allows interactive visualization of up to four channels The appearance and function of the diagram can be modified Use the right mouse button for the diagram A pop up menu with a number of options will appear For changing the time range of your measurement to be shown click on the number to the right or left of the time axis Type a new number and confirm with ENTER HDMView 70 Menu items File Save Save as Measurements which have been displayed can be saved in MS Excel format With the Save option the information will be stored in the directory selected under Select Path If no path is selected a sub directory will be created under the name of DATA in the directory in which the program HDMVIEW EXE is located With save the file names are allocated as follows Name HDMYYMMDDhhmm xls with YY MM DD hh mm The times input relate to the starting time of the measurement S Start Recording The file name may be changed subsequently the file suffix xls must be retained With Save As the file name xls may be freely selected Quit Options Channels Select Path Closes the window Up to four channels may be selected for the simultaneous recording of the various HDM measurements with different units Here you can select a standard path for your measuring files 71 HDM
33. for verifying calibration Parameter Verification Frequency Temperature Once a Year Conductivity Once a Month Pressure Once a Year pH Before Each Use Voltage Once a Year Flow Once a Year Frequency Once a Year Period time Counter Write down your calibration values and keep them until the next calibration In case of damage a calibration protocol can be important to help locate the problem If the calibration has been done by the IBP a sticker will be put on showing the date of the next required calibration A complete function test and calibration of the device should be done once a year For liability reasons you should not carry out these tests and calibration and verification yourself If IBP performs the calibration you will receive a calibration certificate in accordance to ISO9001 which documents the calibration verification results Maintenance and Care 58 Recommended verification values and the allowed deviations Measuring Channel Verification Value Allowed Deviation Remark Temperature 25 00 C Re e 34 00 C 0 1 9C 37 00 C SES 40 00 9C 0 1 C 55 00 C 0 1 C 80 00 C E096 Conductivity 74 00 uS cm 0 60 uS cm 147 uS cm 0 60 uS cm 720 uS cm t 6 00 uS cm 1410 uS cm t 6 00 uS cm 2 77 mS cm t 0 03 mS cm 6 70 mS cm t 0 03 mS cm 12 88 mS cm 0 03 mS cm 16 00 mS cm
34. iaphragm must be stored in 3 mol l KCl solution The protective cap must be refilled every three to four weeks to prevent the electrode from drying out Before use the electrode must be checked for exterior damage and crushed glass Crusts caused by leaking electrolyte can be removed easily by rinsing with reverse osmosis treated water The sample volume should be 100 ml of dialysate or 1 liter of untreated water The sample should be poured into a clean glass container with a tube or hose coming into as little contact with air as possible The pH value must be measured immediately in the same container Make sure that the display stabilizes before the value is read Measurement 28 In stirred solutions the response rate is faster the value however must be measured at resting fluid The pH electrode must be dabbed only with a lint free cloth and never rubbed dry Rubbing destroys the jelly layer on the glass surface which results in a longer response time for the electrode Before taking measurements remove the rubber cap If the mobility of the plastic part is restricted it can be released by rinsing with lukewarm water Pressure and fluid currents have considerable influence on the pH measurements Therefore it is essential to take the pH measurement in a resting solution at environmental pressure If you would like to learn more about pH please visit the following WEB sites The pH Measurement Information Resource This site provi
35. il the display shows a stable value and then enter the pH value via the numeric keyboard Confirm your input with ENTER Then wash and dry the electrode and dip it into the second buffer When the value of the second buffer is entered the display shows the actual calibration If Calibration and Verification 52 thereby the graduation grad is lower than 85 the electrode could be worn out and must be replaced by a new one If you try to enter two equal values the reference data invalid appears after confirming with ok At correct input the data will be saved and you will return to the menu for the adjustment 53 Calibration and Verification Flow Calibration adjust adjust flow flow no sensor detected NR enter impulse maximum tiae flow flow alenia 726 02000 quantity VLU in ml SENTER enter val select gt ENTERS unit Bel s i 1 adj s 1 adj s 1 adj s 1 flow ml min enter f 2 6 reese TESS impulse 0 1000 2000 per litre Please enter val 356000 0730 gt ENTERS lt gt ENTERS lt You will get to this function by operating the menu point flow Up to 15 different sensors will be governed automatically For calibration the correct sensor must be applied In case that no sensor should be connected a fault notice will occur The running number of the recognized sensor will appear in the following presentations in the upper display Look also in th
36. ion pH 0 01 Accuracy pH 0 1 Temperature compansation manually or via probe in combined electrode Voltage Range 40 V AC DC Frequency up to 3 kHz Resolution 0 01 V Accuracy t 0 246 from full scale value 61 Specifications Flow Range 100 2000 ml min Resolution 1 ml min Accuracy 0 5 from full scale value Frequenz Range 250 kHz Input voltage 5 24 V Resolution 1 Hz Accuracy X 0 246 from full scale value Period Duration Range bis max 1000 sec Input voltage 5 24 V Resolution 1 msec Accuracy 0 2 from full scale value Pulse Event Range 99999 Input voltage 5 24 V Power supply Internal Ni MH battery rechargeable Operating time depending on operating mode approx 9 5 hours External charger Input Voltage Europe 220 NI 50Hz International 100 245 V 50 60 Hz Output Voltage 12 V DC 500 mA Size and weight Approx 270 x 120 x 50 mm Weight 900 grams without battery charger or probes Interface 62 PC Interface RS 232 Interface To avoid current loops use the RS232 Interface only with notebooks which are not connected with the battery charger Pin occupation of the RS 232 Interface HDM99 Computer Pin Number Signal Pin Number Signal 2 RxD 3 TDX 3 TxD 2 RXD 5 GND 5 GND Interface parameters The following interface parameters are fixed in the instrument Baud rate 9600 Parity None Data bits 8 Stop bit 1 Interfac
37. ion value there Check the calibration once again This way the calibration is complete 55 Calibration and Verification Voltage Calibration adjust HD99 adjust HDMag voltage adjust voltage adjust voltage uoltage Uolt Uolt 0 12 19 93 Se Fe il 20 D a 20 D a Please Please enter enter ist value 2nd value 00 00 20 00 for quit for quit press press ZENTER ZENTER wel wel walt Uoalt old G12 news 8 88 Val Zclolt old 19 93 news 26 68 data saving how wall cUolt old 8 12 news m m invalid Val Zclolt data old 19 93 news 8 88 ance You can reach this function by calling the menu point voltage For the calibration of the voltage measurement you need two values The calibration values should be at 0 and approx 40 V The sequence of the calibration in reference to the size of the values is insignificant For the calibration value 0 V create a short circuit between the sockets For other calibration values apply known voltages to the sockets The entering of the calibration values is carried out via the numeric keyboard Please pay attention that the values in the display are stable then enter the calibration values and confirm them with gt ENTER lt After input of two calibration values the old and new values will be indicated once more and can then be taken over with the ok key Maintenance and Care 56 Maintenance and Care Generally the HDM99 can be considered as an
38. is function by calling the menu point temp coeff You can enter the new temperature coefficient via the numeric keyboard and confirm it with gt ENTER lt Pressing the OK button transfers the new temperature coefficient to the program but it is not used until it is selected in the parameters menu for Conductivity and Conductivity Temperature By operating the menu point conductivity range you can choose the correct range with the arrow keys While calibrating the solution should have a temperature of approximately 25 C As soon as the measuring value in the display is stable the calibration value of the solution can be entered by the numeric keys and can be confirmed with gt ENTER lt After the calibration all values relevant for the conductivity measuring will be indicated once more By operating the ok key all data will be saved 45 Calibration and Verification Measuring of the cell parameter Before this function can be used the reference temperature must be adjusted It is sufficient for the conductivity calibration to know the cell parameter If this is not known or has been changed after longer use by deposits on the electrode this function can be used to define the cell parameter newly Call the function measure cellpar in the adjust menu Materials needed HDM99 meter with attached conductivity temperature probe 13 63 or 14 0 ms cm Conductivity Standard Solution clean glass container Calibration and Verification 46
39. ms mentioned above Some states do not allow limitations on the duration of an implied warranty so the above limitation may not apply to you Under no circumstances shall IBP Instruments GmbH be liable to the original purchaser or to any other person for any special or consequential damages whether arising out of breach of warranty breach of contract or otherwise Some states do not allow the exclusion or limitation of special or consequential damages so the above exclusion or limitation may not apply to you Introduction 8 This warranty gives you specific legal rights and you may also have other rights that vary from state to state For further warranty information contact IBP Instruments GmbH 9 Introduction Product Overview ee t Voltage Connector he Inlet Flow Alternating Signal Connector pH Connector Conductivity Temperature Connector Measuring Channels Only use accessories provided with the HDM99 Use of other devices may damage the instrument and will void the warranty Conductivity Temperature Transducer The Conductivity Temperature probe is a quadropole design for greater accuracy and longevity than other designs Take care to properly align the pins in the connector when attaching the transducer Pressure To avoid damage or inaccurate measurement ensure that no fluids enter the instrument We recommend the use of a Transducer Protector for this purpose pH The input connector is designed e
40. o enter a code via the numeric keyboard This code is 1704 When you confirm your input with gt enter lt you will receive the following images HDM 99 HDM99 HDH99 HDM99 HDM99 HOM99 HDH99 mainmenu install Reset Reset Reset Reset Reset please please m 1704 Code EE reset of ok adjust values for quit is activ press ed gt now With the function keys beside the individual measuring channels you can decide on which calibration values this function should be applied The calibration values will be reset to basic values If for individual parameters the function adjust reset was used then a new verification is necessary for these parameter The reset of the flow measurement only resets the parameters of the flow sensors 1 7 The possibly existing calibration values of own sensors remain unchanged Introduction System Error Message When the HDM99 is switched on an internal check is initiated If the check shows no errors the HDM99 is started using the menu which was last in use If the check reveals an error following error message window is displayed Systemtest 1 MEM OK Please call for Support Example AD Converter Error An OK error display shows that the internal test routine has been completed with no errors found An ERR in the display shows that a problem has occurred during the check When this error report is displayed please contact IBP 1 MEM Memory Erro
41. on and Verification Calibration and Verification To avoid confusion let us explain first what is calibration and what is verification Calibration is the correction of a measuring channel Verification is the checking of the instrument with a known reference value Anytime a calibration is made to the meter verification is required to ensure accurate operation Anytime that improper function is suspected verification and or calibration are required Each measurement parameter is calibrated in a slightly different manner so be sure to read the instructions carefully before proceeding The conductivity is calibrated by measuring the cell constant Due to the high linearity of the probe only one calibration point is necessary for this The temperature and pressure sensors do not drift no calibration is necessary after manufacturing The calibration is done at six points for increased accuracy The pH measurement is calibrated at two points If at any point during calibration you are unsure whether you have correctly entered all values you can exit without saving any calibration values After you have done so no calibration is performed and you can start again from the beginning The necessary steps for exiting the calibration procedure are described in detail below If a calibration is incorrect you have the option of accepting the standard values for every measurement mode Refer to the Standard Values section for details
42. r This error is displayed when an internal memory check shows that a problem has occurred The unit is need of repair 32 ADC AD Converter Error This error display is shown when a defect is fount in the Analog Digital Converter The unit is need of repair 17 Introduction 3 ADJ Cecksum Error The calibration values are saved to memory together with an internal check sum This check sum is used each time the system is started to verify that all memory data remains unchanged The aforementioned text is displayed when an error occurs during system start up the unit cannot function while the error is displayed and a renewed calibration is mandatory 4 SYS Watchdog Error This message is displayed when the unit is restarted after a system crash To delete the message switch the unit off and then on again If this error occurs at regular intervals please contact IBP for support MC ECT Additional Information The entry on the display following the MC and ECT are IBP error messages facilitating problem analysis When contacting IBP to report an error please report the messages describing the system error Measurement 18 Measurement From the main menu over measuring you will receive the following menu HDM99 measure HDM99 measure measure conduct gt PH gt count conduct other channels po ol other SS d other Examples for measurement displays mneazure Meazu
43. rbonate dialysate concentrates and water used in hemodialysis applications The HDM99 may also be used to test the voltage and alternating signals in hemodialysis delivering systems Introduction EC Declaration of Conformity according to the Council Directive 93 42 EEC concerning medical devices IBP Instruments GmbH SutelstraBe 7A 30659 Hannover declare under our sole responsibility that the product HDM99 Art Nr 31 0006 meet the provisions of the Council Directive 93 42 EEC concerning medical devices which apply to them CE certified by Medcert GmbH Hamburg Germany Nr 0482 Date of issue 09 08 02 Authorized person Dipl Ing Werner Pfingstmann Managing director 5 Introduction Delivery Content Introduction Pos Standard Option 1 HDM99 X 2 Conductivity Temperature Probe CTP X 3 Flow Through Adapter for CTP X 4 Batter Charger with country specific adapter X 5 Tube inc Male Connector for Pressure Measurement X 6 13 63 or 14 00 mS cm Conductivity Standard Solution x 7 User Manual X 8 Interface Lead Voltage X 9 Interface Lead Frequency Period Time Pulses X 10 Test prod X 1 Case X 12 Flow Probe X 13 pH Probe with Reference Solution X 14 HDMvView Software and RS232 Interface Cable X 7 Introduction Warranty IBP Instruments GmbH warrants that it will repair or replace at its option any defective or malf
44. re conduct conduct Activation of the function keys gea E F5 leads to the menu for the 12 93 1 405 n F1 F1 parameter setting EDEN PE F6 leads back to the main menu temperat F2 F2 20 7 The handling of all menus 2 F3 i dia corresponds to the already S LESS s EE e explained operating instructions Yaw Bm Sem The individual menus and sub mmm F5 param 7 F5 menus are presented and explained below 19 Measurement Temperature measurement MESU Measure parameter temp temperat temperat E BR C pc 29 8 mmm zz i parameter Parameter 24mm m pte i DE 1 temp temp Maw i sec Haw 1amin Vau 2H C Yaw 28 D Time range By activation of the function key param you will receive a menu which allows to change the time range in which the course graphic will run through horizontally once Long term measurements up to twelve hours are possible Since you do not have all possible times presented simultaneously a black beam on the right side shows that above or like in the example further options hide themselves below The selected time range is shown inverted To change the time range operate the function keys beside the arrows upward or downward When you have selected the suitable time range for your application return to the temperature measurement with the activation of ok The length of the horizontal axis of the graph now corresponds to the chosen fime range Me
45. res the measured solution s conductivity will increase too To achieve meaningful measurement results the conductivity value displayed is compensated to 25 C In other words the display is always converted to a solution temperature of 25 C The temperature coefficient which the displayed value is compensated with is expressed as C Unfortunately however different solutions also have different temperature coefficients To achieve an exact display the instrument will have to be adjusted to the temperature coefficient of the current solution The average temperature coefficient for dialysates is 2 07 C Listed below are the temperature coefficients used by most major hemodialysis machine manufacturers We recommend that you doublecheck this data with documentation from your machine s manufacturer Measurement 22 Machine Manufacturer Temperature Coefficient Baxter European Machine 2 20 C Braun 2 10 C Fresenius 2 10 C Gambro European machines 2 07 C Gambro Phoenix 2 07 C Hospal 2 07 C Nikkiso Bicarbonate conductivity 2 02 C Total conductivity 2 05 C For naturally occurring solutions a value of 1 97 C is frequently used Many measuring devices not specially tailored to dialysis will use this value The calculation below shows the drastic effects of an incorrect temperature coefficient Example calculation for an incorrect temperature coefficien
46. surement With activation of the function key ok you arrive back in the conductivity measurement The vertical axis of the course graphic as well as the scale length of the beam display now correspond to the measuring range you have chosen The temperature coefficient menu point allows many different setting possibilities In the parameter menu for conductivity and also conductivity temperature it is possible to choose from a list of preset temperature coefficients of various dialysis machine manufacturers These are listed by name There is also a standard value of 2 07 C and a user value The user value can be changed in the usual way in the adjustment menu for conductivity All settings are permanent until the next change The selected setting is shown in the measurement menu The conductivity measurement has a range of 0 to 23 99 mS cm which is divided into four conductivity measuring ranges to provide highly accurate measurements These four ranges are as follows Conductivity Ranges Range One 0 19 9 uS cm Range Two 0 199 9 uS cm Range Three 0 1999 uS cm Range Four 0 23 99 mS cm If the conductivity measured is outside this range OFL will appear on the display Temperature Coefficients Temperature Coefficients and Conductivity Measurement This is a topic that is frequently misunderstood and often neglected in hemodialysis A solution s conductivity will change according to temperature With increasing temperatu
47. t using a dialysate with a temperature coefficient of 2 07 C Conductivity of Temperature Instrument Instrument Difference in Solution of Solution Temperature Coefficient Display Values mS cm C JC mS cm 14 00 37 0 2 07 14 00 0 00 14 00 37 0 1 97 14 17 1 21 Thus our example illustrates that the user must set the temperature coefficient correctly in order to ensure accurate measurements 23 Measurement Which temperature coefficient you should use First of all please double check the Temperature coefficient with the machine manual If you have machines from one manufacturer only in your use the temperature coefficient that the dialysis machine uses for compensation If you have different types of dialysis machines in your unit the best solution is to use a temperature coefficient of 2 07 C for all machines This avoid confusion with different readings of the conductivity on different machines Setting the Temperature Coefficient The HDM99 enables you to easily set different temperature coefficients You can choose between eight fixed settings and a variable value The fixed values are values of frequently used dialysis machines The variable value can be set to any required value Measurement 24 Pressure measurement measure Parameter Pressure pressure kPa 29 8 rn A av 2 5 sec Yaw 29kba tare of pressure trancducer activ Time range
48. tare results in the reset of the display to zero and the automatic return to the pressure measurement Further possible measurements With the option other channels you can shift to a second measuring menu where you have the choice between two different modes of voltage measurement the test for pH value and the control of the charging state of the accumulators If you would like to return to the first measuring menu with conductivity temperature and pressure measurement choose other channels again HOMs9 measure HDHM98 measure measure conduct conduct Volta 5 temp ot d count pressure other channels rand Nl x other menu Measurement 26 pH Measurement mneasure Parameter pH pH meazure PH 5 94 mdu damin Yaw 2 S pH parameter parameter Parameter pH pH pH Please enter temp ba C 22 0 for quit press EHTERX Time range By activation of the function key param you will receive a menu which allows to change the time range in which the course graphic will run through horizontally once Long term measurements up to twelve hours are possible Since you do not have all possible times presented simultaneously a black beam on the right side shows that above or like in the example further options hide themselves below The selected time range is shown inverted To change the time range operate the function keys beside the arrows
49. th the ok key and return to the voltage measurement Please note that a successful triggering can only take place if a suitable voltage signal is applied Otherwise gt no trigger lt appears in the graphic display Measurement 38 Battery voltage Charging state of the battery If you select the function battery you will receive an information display about the battery voltage and the charging time The charging state of the installed accumulators can be estimated by the battery voltage Above you see from left to right the displays for empty half and full measure measure Measure batterie batterie batterie Uolt Volt Wo 4 32 5 24 S r 4 a ESA Ku DI BU o E BU uU SU DI chargetime chargetlime chargetime 00 00 02 18 05 30 fazstcharae aktiu The computer processed charging starts with the connection of the charging device There are two modes of charging quick charge and trickle The light emitting diodes beside the charging socket indicate these modes Green stands for trickle and the red LED indicates quick charge In all working modes the empty battery is indicated as gt Low Bat lt in the uppermost menu field With activation of the key measuring you will return to the measuring menu To avoid fail functions never use the HDM99 without batteries To avoid hazardous voltages in case of a defective battery charger never use the HDM99 on a dialysis machine with a connected battery charger 39 Calibrati
50. unctioning part without charge for the terms listed below Parts used for repair or replacement are warranted for the remaining warranty period only The user must deliver at its own expense the product to IBP Instruments Inc USA from any country in America or IBP Instruments GmbH Germany from all other countries Parts Warranty Terms Conditions HDMS99 60 months Annual calibration through IBP Conductivity Temperature Probe 24 months Annual calibration through IBP HDM99 36 months No Conductivity Temperature Probe 12 months No from date original purchase of original purchaser Calibration service must be performed by IBP Instruments every year maximal plus 2 months of the first calibration without interruption The warranty does not cover Disposable parts as battery or pH electrode Annually calibration Cell cleaning Defects caused by 1 Modification alteration repair or service of the product by anyone other than IBP Instruments or an authorized service center 2 misuse due to negligence or accident 3 operation or maintenance of the product in a manner contrary to IBP instructions Any express warranty not provided herein and any remedy for breach of contract that but for this provision might arise by implication or operation of law is hereby excluded and disclaimed The implied warranties of merchantability and of fitness for any particular purpose are expressly limited to the ter
51. upward or downward When you have selected the suitable time range for your application return to the temperature measurement with the activation of ok The length of the horizontal axis of the graph now corresponds to the chosen fime range 27 Measurement Temperature compensation pH measurement For the temperature calibration of the pH measurement the device offers two possibilities The solution temperature can be measured via the conductivity and temperature electrode or entered by hand The chosen kind of the calibration is check marked in the menu point measure t comp or enter t comp If you choose measure t comp no further input is necessary The temperature will be measured via the measuring cell Parameter Parameter Parameter pH pH pH Please connect suitable Lenp Lemp sensor sensor recognized By choice of enter t comp you will be asked to enter the solution temperature via the numeric keyboard After confirmation with gt ENTER lt you will return to the menu for the parameter setting Fundamental information about pH measurement For measuring pH a combined electrode is used Combination pH electrodes are combinations of one reference electrode and one measuring electrode in a glass tube The pH value in the dialysate is measured by an unbreakable pH electrode The glass body is protected with a plastic coat and due to the jelly electrolyte filling it is maintenance free This electrode s d
52. with gt ENTER lt The calibration points for the measurement on dialysis machines should be at 400 100 0 100 and 500 mmHg If you call the function stop input after your input the entered values will be indicated once more and can be taken over with the ok key adjuzst adjust adjust Hun pressure Pressure pressure adjust Pressure biolo Ce 56 3 press lt rmmHa Magna EU RE PET pri B 1 pr i 318 Diss prz 888 data enter saving 5th value Stan i prd 308 now input peo 551 551 ps for quit press gt ENTERS 49 Calibration and Verification The calibration values must be entered only if the values on the display are stable The sequence of the calibration in reference to the level of the values is insignificant Please note that each value may be entered only once since the system does not accept the data otherwise Calibration and Verification 50 pH Calibration Please read the section Fundamental information about pH measurement pH adjuzt adjust measure pH measure pH pH raram PH FH please grad 995 enter 5 82 5 85 temp 25 C temp bat a T dog T 1a pH valuel Please Please old 3 82 data enter enter new 4 68 i t comP 4 25 0 ist value 2nd value PA nm 04 00 06 00 Zt gt for quit MO DEED 3 oy D a Ges press for quit for quit neue Eon ZENTER press Press EHTERZ EHTERZ Temperature compensation of the pH measurement For the temper
53. xclusively for pH electrodes Use of other devices may destroy the instrument Introduction 10 Flow The connection is to be found at the right side of the device 8 pol connector Frequency Periodicity and Events The connection on the right side of the device is also used for the measuring of the flow The incoming voltage range is 5 24 V The form of the signal should be of a rectangular form and has to be positive Voltage The sockets are intended only for AC and DC voltages up to 40 V They are protected up to 80 V Battery Charger The HDM99 is equipped with an internal NiMH battery for extended run times when not connected to the external charger The charger provides a 12V 500mA charge to the battery A message appears on the display when the battery requires charging For further details consult the Maintenance section of this User Guide 11 Introduction Use of the Flow Through Adapter The Conductivity Temperature Transducer may be used in two ways In the Flow Through Mode illustrated at left the user may measure pressure temperature and conductivity with the included Flow Through Adapter The preferred position of the Hansen connector is vertical the axial supply is show at the bottom of the illustration In the Flow Through Mode the axial supply is used as input and the radial supply as output The pressure probe in the HDM99 is fastened to the radial connection above the input Before
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