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IBP HDM99 User Manual

Dialysis measuring system
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HDM99
Dialysis Measuring System
User Manual

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Summary of Contents for IBP HDM99

  • Page 1 HDM99 Dialysis Measuring System User Manual...
  • Page 2 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) 1996-2000, IBP Instruments GmbH.
  • Page 3 Attention Read these safety instructions before using the HDM99 • Please read the manual before using the HDM99. • Keep away the device from unauthorized persons. • Never use the HDM99 with connected battery charger on a dialysis machine to which a patient is connected.

  • Page 4: Table Of Contents

    ....................41 ANGUAGE ................... 41 WITCH OFF TIME ....................42 DJUST RESET CALIBRATION OF THE HDM99 ..............43 ....................43 DJUSTMENT ..........45 ALIBRATION OF TEMPERATURE MEASUREMENT ..........47 ALIBRATION OF CONDUCTIVITY MEASUREMENT ..........51 ALIBRATION OF THE PRESSURE MEASUREMENT ...............
  • Page 5 CALIBRATION OF FLOW................55 CALIBRATION OF THE VOLTAGE MEASUREMENT ......57 MAINTENANCE AND CARE OF THE HDM99........... 58 ......................58 TORAGE ...................... 59 LEANING ................60 ALIBRATION INTERVALS SPECIFICATIONS FOR THE HDM99............62 RS-232-INTERFACE ..................64 HDMCMO STARTS BACKGROUND MEASUREMENT......66 12964.12/ 24.7/ 750/ 7.00/ -0.03/ 0.05/6.12/1200/1000/79131/999999 + CR LF à...

  • Page 6: Delivery Extent

    Combined electrode conductivity / temperature Flow-through connector for conductivity/temperature probe Pressure measuring tube Voltage measuring cables Count input measuring cables Battery charger Standard solution conductivity 13,63 mS/cm The documentation of HDM99 consists of this manual. If you should miss anything, please contact your supplier.

  • Page 7: Ec-Conformity Declaration

    Introduction EC-Conformity Declaration Hereby we declare that the HDM99 corresponds to the basic requirements for protection according to the guidelines of the board for the assimilation of legal regulations about electro-magnetic compatibility (89/336/EWG) of the member states. For the rating of the devices in view to their electro-magnetic compatibility...

  • Page 8: Guarantee Directives

    During the manufacturing exclusively first choice parts are used. Each device undergoes extensive tests before delivery. IBP warrants that the device is free from defects in material and workmanship for a period of 12 months beginning at the date of delivery.

  • Page 9: Introduction

    PC. For the fault location at dialysis machines IBP has developed a program that presents and processes measurements of the HDM99 and of the machine together. Provided that the dialysis machine is equipped with an interface according to RS232- or RS485-standard.

  • Page 10: Connections

    80 V. Conductivity / Temperature The conductivity measurement is designed for quadropole technology. Please use exclusively the electrode delivered with the device by IBP. Pressure To avoid damages at the pressure probe or inaccuracies in measurement, ensure that no fluids intrude into the device.

  • Page 11: Charge Connection

    The charge connection is found at the right side of the device. The connection is provided with 12 V / 500 mA by the included battery charger. For safety reasons never use the HDM99 with connected battery charger on a dialysis machine to which a patient is...
  • Page 12 In the flow-through mode the axial supply is used as input and the radial supply as output (see illustration). The pressure probe in HDM99 is fastened to the radial connection above the input. Before any measurements you must shake the connector to assure that any air within the system escapes.

  • Page 13: Turning On The Device

    Introduction Turning on the device The device is switched on and off with the keys ON and OFF. In addition to that, the device automatically switches off when the accumulator is exhausted, or after the elapsing of an adjustable time. Main menu After switching on the device you receive an information menu for approx.
  • Page 14 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 as the serial number of your HDM99.

  • Page 15: Measurement

    Measurement Measurement From the main menu over measuring you will receive the following menu:...
  • Page 16 Measurement Examples for measurement displays The handling of all menus corresponds to the already explained operating instructions. The individual menus and sub-menus are presented and explained below.

  • Page 17: Temperature Measurement

    Measurement Temperature measurement 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.

  • Page 18: Conductivity Measurement

    Measurement Conductivity measurement 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.
  • Page 19 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.
  • Page 20 Measurement Basic information about the temperature coefficient The temperature coefficient in conductivity measurement is an important subject that is frequently neglected. The conductivity of a solution changes with the temperature. As the temperature rises, the conductivity of the measurement solution increases also. In order to arrive at meaningful measured values, the display value is compensated to 25°C.

  • Page 21: Conductivity And Temperature Measurement

    Measurement Conductivity and temperature measurement...
  • Page 22 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, this way an optimal graphic representation of the running measurement is assured.
  • Page 23 Measurement Pressure measurement Time range 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.
  • Page 24 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.

  • Page 25: Further Possible Measurements

    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.

  • Page 26: Ph Measurement

    Measurement pH Measurement...
  • Page 27 Measurement 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.
  • Page 28 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.
  • Page 29 Measurement For pH-measurement in untreated desalinated water a particular electrode is necessary. This glass electrode is optionally available and has a 1 mol/l KCl reference electrolyte. The diaphragm of this electrode must be stored in 1 mol/l KCl-solution. Before usage the electrode must be checked on exterior damage and glass crash.

  • Page 30: Ph-Calibration In The Measuring Mode

    Measurement pH-calibration in the measuring mode 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.

  • Page 31: Flow Measuring

    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...
  • Page 32 Measurement Connection occupancy of the plug connection for the flow measurement Meaning currency supply sensor 5 V/ max 10 mA signal input 5...24 V max 1 MHz code input 0 code input 1 code input 2 code input 3 shield for supply...
  • Page 33 GND GND IBP Sensor 5 IBP Sensor 6 IBP Sensor 7 IBP Sensor 8 GND GND GND GND If you use your own sensors, please choose a code beginning at number 9. The numbers 1...7 are reserved for the IBP sensors.

  • Page 34: Counter

    Measurement Counter 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 1 MHz. In the event measuring, the counted events can be reset to zero by operating reset.

  • Page 35: Pool Menu

    Measurement Pool menu 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 measurement or the unit for the pressure measurement, are taken from the corresponding measurement menus and can also only be changed there.

  • Page 36: Voltage Measurement - Plotter

    Measurement Voltage measurement - plotter 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.
  • Page 37 Measurement temperature measurement with the activation of ok. The length of the horizontal axis of the graph now corresponds to the chosen time range. 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.

  • Page 38: Voltage Measurement - Oscilloscope

    Measurement Voltage measurement - oscilloscope Time range By activation of the function key param. you will receive a menu which allows you to change the time range in which the graph will run through horizontally once. Long term measurements up to twelve hours are possible.
  • Page 39 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.

  • Page 40: Battery Voltage

    >Low-Bat< in the uppermost menu field. With activation of the key measuring you will return to the measuring menu. For safety reasons never use the HDM99 with connected battery charger on a dialysis machine to which a patient is connected.

  • Page 41: Installation

    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.

  • Page 42: Adjust-Reset

    Installation 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 to enter a code via the numeric keyboard. This code is 1704.

  • Page 43: Calibration Of The Hdm99

    Calibration Calibration of the HDM99 Adjustment 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 >ENTER<.
  • Page 44 Calibration 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 function >cancel<.

  • Page 45: Calibration Of Temperature Measurement

    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 >ENTER<. The calibration points should be at the following points: 20 °C, 30 °C, 36 °C, 38 °C, 45 °C and 80 °C.
  • Page 46 Calibration...

  • Page 47: Calibration Of Conductivity Measurement

    Calibration Calibration of conductivity measurement We recommend an examination of the calibration once a month. Reference temperature 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.
  • Page 48 Calibration Temperature coefficient For dialysate, the temperature-coefficient of the solution to be measured is 2.070%. For special applications this factor can be changed. Use this function only if you are aware of the consequences. By using wrong values you will get wrong conductivity values. You reach this function by calling the menu point temp.-coeff.
  • Page 49 Calibration 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.
  • Page 50 Calibration 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 >ENTER<.

  • Page 51: Calibration Of The Pressure Measurement

    Calibration Calibration of the pressure measurement We recommend an examination of the calibration once a year. 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).
  • Page 52 Calibration 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.

  • Page 53: Calibration Of Ph-Measurement

    Calibration Calibration of pH-measurement Please read section Fundamental information about measurement Temperature calibration of the 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 type of the calibration is check-marked in the menu point measure t-comp or enter t-comp.

  • Page 54: Ph-Calibration

    Calibration pH-calibration We recommend an examination of the calibration before each measurement. 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.

  • Page 55: Calibration Of Flow

    Calibration Calibration of flow 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.
  • Page 56 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 calibration value there.

  • Page 57: Calibration Of The Voltage Measurement

    Calibration Calibration of the voltage measurement We recommend an examination of the calibration once a year. 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.

  • Page 58: Maintenance And Care Of The Hdm99

    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...

  • Page 59: Cleaning

    Cleaning Never clean the device with any fluids! In case of pollution you can wipe the surface of the HDM99 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 de-ionized water, fats and oils with warm water and household dish washing detergent.

  • Page 60: Calibration Intervals

    Calibration intervals In the delivery state each device is newly adjusted. To assure a reliable function of the HDM99, 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.
  • Page 61 Maintenance Allowed limits measuring channel measuring range allowed limits ± 0,05 V voltage DC 40 V ± 0,05 V voltage AC 40 V ± 2 mmHg pressure -700...+1600 mmHg ± 0,1 mS/cm conductivity 0...20 mS/cm ± 0,1 °C temperature 30...40 °C 0...30 and 40...100 °C ±...

  • Page 62: Specifications For The Hdm99

    Maintenance Specifications for the HDM99 Conductivity 0...20 mS/cm in 4 ranges, quadro-pole-electrode, temperature compensation 20...40°C with 2,07 % per °C (adjustable), temperature sensor integrated in the measuring cell, reference temperature 25°C (adjustable), precision better than 0,25 % of full measuring range Temperature 0...100°C, resolution 0,01 °C,...
  • Page 63 Maintenance Voltage ±40 V AC/DC, resolution 0,01 V, precision better than 0,15 % of measuring range value, frequency response in oscilloscope mode 3 kHz - 3 Power supply Ni-MH battery rechargeable with 12 V DC, operation time according to operation mode approx. 10 hours Size approx.

  • Page 64: Rs-232-Interface

    Pin occupation of the RS-232-interface Pin No. Signal Pin No. Signal HDM99 computer > > GND > (GND)SG RTS > CTS > Interface parameters The following interface parameters are fixedly adjusted at the HDM99 Baud rate 9600 Parity None Data bits Stop bit...
  • Page 65 Index 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 HDMCD sends CD conductivity...

  • Page 66: Hdmcmo Starts Background Measurement

    Index HDMCMO Starts background measurement HDMCMF Ends background measurement MRES Reset unit counter for flow Fetches measured values via the RS232 interface 12964.12/ 24.7/ 750/ 7.00/ -0.03/ 0.05/6.12/1200/1000/79131/999999 + CR LF à à 73 signs Conductivity in µS/cm 8 signs Temperature 5 signs Pressure...
  • Page 67 Index Conductivity 9, 10, 18, 21, 62 Connections 10 oscilloscope 38 Data transfer 65 Permissible limits 61 dialysate 28, 29, 48, 49 pH 9, 10, 26, 28, 29, 30, 43, dialysis machines 9, 51 53, 54, 60, 61, 62, 65 Druck 11 plotter 36 Druckmessung 31, 34, 62...
  • Page 68 Index Voltage 6, 9, 10, 36, 37, 38, y-range 18, 19, 22, 39...

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