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DATREND Systems venTest Operating Manual

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venTest
Ventilator Tester
Operating Manual
MN-108

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Summary of Contents for DATREND Systems venTest

  • Page 1 ™ venTest Ventilator Tester Operating Manual MN-108...
  • Page 3 ™ venTest Ventilator Tester Operating Manual © 2016 - 2018 Datrend Systems Inc. Unit 130 - 4020 Viking Way Richmond, BC • CANADA • V6V 2L4 Tel: 800.667.6557 (North America Only) or 604.291.7747 • Fax 604.294.2355 e-mail: customerservice@datrend.com...
  • Page 5 2018-Jun-28 Copyright Datrend Systems Inc. (“DSI”) agrees to a limited copyright release that allows you to reproduce manuals and other printed materials for use in service training programs and other technical publications. If you would like other reproductions or distributions, submit a written request to Datrend Systems Inc.
  • Page 6 Warranty and Product Support Datrend Systems Inc. ("DSI") warrants the venTest Unit (the "Datrend product") to be free from defects in materials and workmanship under normal use and service for one (1) year from the date of original purchase. During the warranty period DSI will, at our option, either repair or replace defects in materials and workmanship at no charge;...
  • Page 7 Warranty Disclaimer Should you elect to have your instrument serviced and/or calibrated by someone other than Datrend Systems or an Authorized Service Centre, please be advised that the original warranty covering your product becomes void when the tamper-resistant Quality Seal is removed or broken without proper factory authorization. We strongly recommend, therefore, that you send your instrument to Datrend Systems or an Authorized Service Centre for service and calibration, especially during the original warranty period.
  • Page 8 Page iv...

  • Page 9: Table Of Contents

    OPERATORS MANUAL Table of Contents ........
  • Page 10 OPERATORS MANUAL 4.1.2 Power OFF/Power Button Menu......23 4.1.3 Energy Saving Mode........24 4.1.4 Screenshots.
  • Page 11 Trigger Options of venTest........

  • Page 12: Abbreviations And Definitions

    OPERATORS MANUAL Abbreviations and Definitions The following abbreviations, terms and acronyms are used throughout this manual: enflurane desflurane halothane isoflurane sevoflurane liter milliliter liters per minute l/min ml/min milliliters per minute liters per second cubic feet per minute second...
  • Page 13 OPERATORS MANUAL Hertz 1/min 1 per minute Volume percent % Vol Percent relative humidity % r.f. Percent per hour milliamp-hours Definitions # Page ix...

  • Page 14: Symbol Definitions

    CONSULT MANUAL FOR PROPER OPERATION The operating manual provides valuable information on the proper use of venTest. It is highly recommended the operator read the instructions thoroughly before operating the device. It is possible to damage the Equipment and/or cause harm to the operator if venTest is used incorrectly.

  • Page 15: Specifications

    OPERATORS MANUAL Specifications Performance Specifications 1.1 Instrument Specifications 1.1.1 FlowSense 300 (Hi Flow) Sensor Measurement Physical Data Dimensions 150 mm x 41 mm x 58 mm (L x W x H) Connector 1 Cone ID 22 mm Connector 2...
  • Page 16 OPERATORS MANUAL Range and Accuracy Accuracy (whichever is Parameter Units Range greater) Flow: Air ± 300 l/min ± 2% or 0.1 l/min (STPD) Flow: O ± 200 l/min ± 4% or 0.2 l/min (STPD) Flow: Air/O ± 200 l/min ±...
  • Page 17 OPERATORS MANUAL Range and Accuracy Accuracy (whichever is Parameter Units Range greater) Plateau kpa; mbar; cmH O; 0 - 10 kPa ± 1% or 0.02 kPa* ** mmHg; psi; hpa Mean kpa; mbar; cmH O; 0 - 10 kPa ±...

  • Page 18: Flowsense 012 (Low Flow) Sensor Measurement

    OPERATORS MANUAL 1.1.2 FlowSense 012 (Low Flow) Sensor Measurement Physical Data Dimensions 125 mm x 41 mm x 58 mm (L x W x H) Connector 1 6 mm tube connection Connector 2 6 mm tube connection Weight Approx. 290 g...
  • Page 19 OPERATORS MANUAL Range and Accuracy Accuracy (whichever is Parameter Units Range greater) l/min; ml/min 0.5 - 12 L/min (AIR) ± 2% of m.v. or 20 ‡ ml/min (AIR) 0.5 - 12 L/min (O , ± 4% of m.v. or 40 ‡...
  • Page 20 OPERATORS MANUAL Range and Accuracy Parameter Units Range Accuracy (whichever is greater) Insp. Peak Flow l/min; ml/min 0 - 300 L/min (AIR) ± 2% of m.v. or 0.1 ‡ l/min (AIR) 0 - 200 L/min (O , ± 4% of m.v. or 0.2 ‡...

  • Page 21: Oxygen (O ) Sensor Measurement

    OPERATORS MANUAL 1.1.3 Oxygen (O ) Sensor Measurement Physical Data Dimensions 73 mm x 31 mm x 31 mm (L x W x H) Weight Approx. 75 g Environmental Conditions Parameter Operation Storage Temperature 5 to 40 C -20 to 60 C...

  • Page 22: Irma

    OPERATORS MANUAL † 1.1.4 IRMA AX+ Multigas Sensor Physical Data Dimensions 38 mm x 37 mm x 34 mm (L x W x H) Weight Approx. 25 g Dead Space: Adult Infant Warm-up Time 10 sec, full specification within 60 sec...

  • Page 23: User Interface

    OPERATORS MANUAL 1.2 User Interface Display....... 7" widescreen colour LCD User Controls.

  • Page 24: Dimensions

    Datrend Customer Service 1.9 Compliance With Standards venTest has been designed to meet the following safety standards: CAN/CSA-C22.2 No. 61010-1-(2 Edition) - Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use, Part 1: General Requirements UL Std. No. 61010-1 (2 Edition) - Safety Requirements for Electrical Equipment for...

  • Page 25: Overview

    Handle the venTest with care. The flow and oxygen sensor have the benefit of not being integrated into the device, and therefore may be placed in areas that a larger system may not normally fit.

  • Page 26: Features

    2.1 Features 2.1.1 Analyzer Base Unit The Datrend venTest is comprised of a Base Unit which provides the control and displays, and connection to either a high or low flow sensor. Referring to Figure 1 , controls, interfaces and features of the Analyzer Base Unit are:...
  • Page 27 OPERATORS MANUAL Item Description/Function 1. ‘ON/OFF’ button Turn base unit ON/OFF, illuminated 2. SD Card Removable SD memory card 3. USB connector Type B, connection to USB-Host 4. USB connector 2 x Type A, connection to USB Devices 5. Ethernet...

  • Page 28: Pressure Connections

    To remove the hose, pull back on the connector sleeve to release the lock. Note that the High Pressure sensor option must be activated before it can be identified by venTest. For further information contact Datrend.
  • Page 29 OPERATORS MANUAL Figure 2 White mark on socket Arrow mark Plug Cover WARNING: Do not force the connector on or off, or pull on the sensor cable. Permanent damage to the cable and connector may occur. IMPORTANT: When first received, some zero flow variation may be observed. It is recommended that a zero point adjustment be performed before first use.

  • Page 30: Oxygen Sensor Connection

    When disconnecting, ensure the knurled nut is fully disengaged before pulling gently on the connector. Note: The Oxygen sensor option must be activated before it can be identified by venTest. For pricing and activation information please contact Datrend (see section 4.17.4) WARNING: Do not force the connector on or off, or pull on the sensor cable.

  • Page 31: Ethernet

    "general\properties" of the device (limited to 11 characters). 2.1.9 Reset In the event venTest is not responding, you can reset the unit by pressing the Reset button (see section 2.1.1). Settings will not be affected by a reset.
  • Page 32 OPERATORS MANUAL Overview/Chapter 2 # Page 18...

  • Page 33: General Instructions

    The measurement of flow with the venTest can be calibrated to the following gases: AIR, 100 % O , O /Air-Mix, and additionally with the small sensor 100 % N O. As the venTest itself cannot detect which type of gas is being measured, the user must set the correct type of gas on the device, otherwise errors may occur.

  • Page 34: Maintenance

    3.2 Maintenance It is recommended that the venTest, and the FlowSense-Sensors be calibrated annually by the manufacturer or its authorized agent. Only original spare parts should be used. The operating staff assumes the responsibility for damages and regulatory violation resulting from improper handling or service activities carried out by a non-authorized personnel.

  • Page 35: Precautions

    OPERATORS MANUAL 3.4 Precautions • The device is only designed for the intended use described in section 3.5 of this manual. • Operation of the device must only be undertaken by qualified personnel. Detailed knowledge of the contents of this manual is required.

  • Page 36: Intended Use

    • venTest power supply unit venTest is not intended to be used on patients, or be used on devices that are connected, in any way, to patients. The unit is designed for use by qualified, trained service technicians, familiar with the use and operation of ventilatory equipment.

  • Page 37: Operation

    Battery charging begins as soon as the power adapter is connected, whether the venTest is turned ON or OFF. When venTest is OFF, all power is applied to charging the battery. A battery charge level icon (bar graph) is displayed next to the power icon, indicating the approximate capacity level of the battery.

  • Page 38: Power On

    OPERATORS MANUAL 4.1.1 Power ON venTest is switched ON using the green ON/OFF button on the rear panel of the display base unit. The Datrend logo is displayed, internal sensors are initialized and sensor calibration data is checked. On successful completion, the main window is displayed and the device is ready for use.

  • Page 39: Energy Saving Mode

    OPERATORS MANUAL 4.1.3 Energy Saving Mode Select Standby (2) to enter the energy saving mode. In this mode, the screen will be turned off and the ON/OFF button will blink. To return to normal mode, press the ON/OFF button again.

  • Page 40: User Interface

    OPERATORS MANUAL 4.2 User Interface venTest has a capacitive touch screen LCD display. The operating interface reacts to the ‘press and release’ of the touch screen at the position pressed. If a field is pressed by mistake, the selection can be cancelled by moving the finger sideways, off the icon, while the finger is still on the display surface.

  • Page 41: Keyboard

    OPERATORS MANUAL 4.2.1 Keyboard If input of text and/or numbers is required, double tap in the text field and a software keyboard will appear in the lower part of the screen. Additional characters are available by pressing the Shift key to expose ( : and ;...

  • Page 42: Swipe Screens

    4.2.2 Swipe screens The main screen of the venTest utilizes three windows, selectable via a ‘swipe’ or ‘wipe’ motion. At the bottom middle of the display, there are 3 small rectangles representing the windows - Traces; Measured Values; and Main Display.

  • Page 43: Trace Display

    OPERATORS MANUAL 4.2.3 Trace Display This window displays up to 2 graphical traces of selectable waveforms, in a large screen format (no numerical data). Figure 7 Various parameters can be displayed as traces or graphs. To configure the graph, touch inside the graphical area.

  • Page 44: Measured Value Display

    OPERATORS MANUAL 4.2.4 Measured Value Display This window displays up to 4 parameters in a large text format. These parameters are the first four values displayed on the main window. Figure 8 Touch on a value to adjust the configuration. Refer to the section 4.4 for more details.

  • Page 45: Main Display

    OPERATORS MANUAL 4.2.5 Main Display The main window display is the central display for all measuring tasks. It contains a graphical display for 2 values as well as eleven numerical values, plus data logging control. For more information about data logging, refer to SubMenu: Logging.
  • Page 46 OPERATORS MANUAL Various parameters can be displayed as traces or graphs. To configure the graph, touch inside the graphical area. Refer to the Configuration Menu: Graph for more details. During operation the display can be frozen by touching the gray ‘Pause’ button (12) in the lower right corner of the graph area.
  • Page 47 OPERATORS MANUAL Printer connected Network connected WiFi stick connected WiFi connected Operation/Chapter 4 # Page 33...

  • Page 48: Structure Of Measured Values Display

    OPERATORS MANUAL 4.4 Structure of Measured Values Display It is possible to configure 11 different measurement values for display on the screen. Figure 10 The information displayed is: (1) Name of measured parameter (2) Gas Type Standard conditions for volume related values;...
  • Page 49 OPERATORS MANUAL Figure 11 Sensor FlowSense setting (if connected) Measuring Units ‘Apply’ Standard Conditions ‘Cancel’ Filter Parameter(s) ‘Prev page / Next page’ Configuration is done in the following manner: • Click on the desired parameter. The selected button is indicated by the colored background.
  • Page 50 OPERATORS MANUAL • The Units and Standard Conditions may be displayed on several ‘pages’ and can be selected using the browse button at the lower end of the column. • An additional button: 'FlowSense settings' may be visible depending on the sensor type connected.

  • Page 51: Overview: Measured Value

    OPERATORS MANUAL 4.5 Overview: Measured Value 4.5.1 Flow Measured Values Sign Abbreviation Measured Value Flow Flow Exp. Peak Flow Peak expiratory flow Insp. Peak Flow Peak inspiratory flow 4.5.2 Ventilation Values Sign Abbreviation Measured Value Inspiratory tidal volume Expiratory tidal volume...

  • Page 52: Pressure Measured Values

    OPERATORS MANUAL Sign Abbreviation Measured Value Pause phase expiration time Humi Relative humidity 4.5.3 Pressure Measured Values Sign Abbreviation Measured Value Pressure Positive end-expiratory PEEP pressure Peak Peak pressure Plateau Plateau pressure MEAN Average pressure Operation/Chapter 4 # Page 38...

  • Page 53: Gas Concentration Values

    OPERATORS MANUAL 4.5.4 Gas Concentration Values Sign Abbreviation Measured Value O -Concentration CO -Concentration Anesthesia gas AGAS concentration N O-Concentration 4.5.5 Other Sign Abbreviation Measured Value No Parameter Value not used Operation/Chapter 4 # Page 39...

  • Page 54: Overview: Standard Conditions

    OPERATORS MANUAL 4.6 Overview: Standard Conditions Atmosph. Temperature pressure Humidity Display Value Value referred to Actual Actual Actual ATPD Actual Actual 0% rel. ATPS Actual Actual 100% rel. 20° C 1013.25 hPa Actual STPD 20° C 1013.25 hPa 0 % rel.

  • Page 55: Filter

    OPERATORS MANUAL 4.7 Filter With this setting only a software filter is applied. without Filter Measured values are displayed unfiltered. with Filter Measured values are displayed filtered, therefore measured values are more constant. For the numeric values, an IIR-filter with a cutoff frequency of 1 Hz is used. Unfiltered this data is brought to the display approximately every 320 ms for the numeric values.

  • Page 56: Graph Configuration Menu

    OPERATORS MANUAL 4.9 Graph Configuration Menu Traces can be displayed in the graph area of the main window, or in the large traces display. To start configuration of the graph area please touch inside the graph. Figure 13 Parameters for trace 1 (red) are on the left side of the screen, for trace 2 (blue) are on the right.

  • Page 57: Main Menu

    OPERATORS MANUAL 4.10 Main Menu Pressing the 'Menu' button on the Main (default) display leads to the main menu (Fig.14). Figure 14 Back to main Display Sub menu Display sets Back to Main Menu Sub menu Logging Sub menu Setup Sub menu Sensors In the center area the available ‘swipe’...

  • Page 58: Setup Sub Menu

    OPERATORS MANUAL 4.10.1 Setup Sub Menu Pressing the 'Setup' button (3 - Figure 14) leads to the general settings functions of the device, as shown below. Figure 15 • Info & Update • Date, Sound & Language • Network •...

  • Page 59: Info And Update

    OPERATORS MANUAL 4.10.1.1 Info and Update Select the 'Info and Update' symbol in the setup screen. Figure 16 This screen provides information about actual installed software and serial numbers. If external memory devices are connected, they are listed here with their device names.

  • Page 60: Date, Sound And Language

    OPERATORS MANUAL 4.10.1.2 Date, Sound and Language Select the 'Date, Sound and Language' symbol. Figure 17 Date and time can be set by using the up and down arrows for each digit. The available languages are displayed and can be selected. By pressing the 'Apply' button the language is set after a restart of the device.

  • Page 61: Network

    OPERATORS MANUAL 4.10.1.3 Network Select the 'Network' symbol in the setup menu. If the venTest is connected to a network via cable, or via a WiFi module*, the actual network configuration is displayed. Figure 18 Figure 19 * EDIMax AC450 Wi-Fi USB Adapter-11ac EW-7711ULC, or equivalent...
  • Page 62 OPERATORS MANUAL It is possible to connect a specific network drive. Figure 20 Click on the 'Network drive' button, complete the required fields and press the ‘Mount’ button. A message displays the actual connection status, and the ‘Mount’ button changed to ‘Unmount’...

  • Page 63: Service

    OPERATORS MANUAL 4.10.1.4 Service This sub menu is for service purposes and the activation of additional sensors/options, and is password protected. Contact Datrend for instructions when activating features. Figure 21 Operation/Chapter 4 # Page 49...

  • Page 64: Display Sets Sub Menu

    OPERATORS MANUAL 4.10.2 Display Sets Sub Menu Creating display sets allows storage of the measurement settings for different devices and applications, which can be reloaded at any time without setting up the individual parameters again. In a display set, all settings like configuration of measured values display, corresponding graph settings and general FlowSense settings are saved.

  • Page 65: Selection Of Display Sets

    OPERATORS MANUAL 4.10.3 Selection of Display Sets Clicking on the 'Settings display sets' icon opens a window to control the stored display sets. Figure 23 Select one of the available display sets and press the 'Apply' button. The main window will be displayed using the selected settings.

  • Page 66: Creation Of New Display Sets

    OPERATORS MANUAL 4.10.4 Creation of New Display Sets To create a new display set, all parameters must first be set in the main window, as desired. In the menu 'Display sets' enter a name for the actual set. To enter the name, tap twice in the ‘new name’...

  • Page 67: Import / Export Of Display Sets

    OPERATORS MANUAL 4.10.6 Import / Export of Display Sets Select 'Import / Export’ to copy display sets between internal memory and connected external memory devices. The display sets to be copied can be selected (single, multiple selection or all), and the transfer activated using the direction keys.

  • Page 68: Logging' Sub Menu

    OPERATORS MANUAL 4.11 ‘Logging’ Sub Menu The venTest allows measured data to be logged. All values and graphs can be recorded over a specified time and stored. For storage, any connected external storage device can be used. By pressing the 'Log' button you get to the configuration menu for the data logging.
  • Page 69 OPERATORS MANUAL Logging is started by pressing the 'Rec' button on the main window. The following dialog will be displayed to confirm the start of recording. Figure 27 Logging can be stopped by pressing the button again, or allowing the set recording time to elapse.
  • Page 70 Logged data is stored on selected external storage media under the venTest/ Logging directory. The file format is .csv (can be read by many spreadsheet programs like Excel, etc.) For more information on the contents of the file, see Appendix B.

  • Page 71: Sensors Sub Menu

    OPERATORS MANUAL 4.12 Sensors Sub Menu In this sub menu all internal and external sensors are listed. Clicking on an individual symbol leads to sensor sub menus for sensor configuration and calibration. ATTENTION: External sensors can only be selected if they are connected and detected by the device.

  • Page 72: Zeroing Of Pressure Sensors

    During this process no pressure must be applied to any of the sensors. All pressure connections of the venTest shall be left open (no hoses shall be connected). Figure 30 After confirming that no pressure is applied to the sensors, press the 'Start' button to enter the zero adjustment process.

  • Page 73: Flowsense Hi And Lo Sensors

    OPERATORS MANUAL 4.12.2 FlowSense Hi and Lo Sensors This sub menu shows all settings for a connected FlowSense sensor. The following description applies to FlowSense Hi, as well as to FlowSense Lo. ATTENTION: These are global settings of all measuring parameter of the connected sensor like gas type or trigger conditions.

  • Page 74: General

    OPERATORS MANUAL Activate the selection by pressing the 'Apply' button(5 - Figure 31). Pressing the 'Cancel' button (6 - Figure 31) discards the settings and the previous configuration remains valid, while the display returns to the main menu. 4.12.2.1 'General' Button Gas Type (1 - Figure 31) The gas types (displayed) depend on the FlowSense sensor connected.

  • Page 75: Inspiration & Expiration Trigger

    OPERATORS MANUAL Restore Defaults (11 - Figure 31) This button restores trigger default values of the sensor. Default trigger conditions are: Start inspiration: 3.0 l/min Flow rising with 40 ms delay End inspiration: 1.0 l/min Flow falling with 40 ms delay Start expiration: -3.0 l/min Flow falling with 40 ms delay...
  • Page 76 OPERATORS MANUAL Selection of trigger slope is also a trigger condition. If a rising edge is selected, the trigger condition is true if the flow / pressure rises above the set trigger value. If a falling edge is selected, the trigger condition is true if the flow / pressure has dropped below the trigger value that is set.
  • Page 77 OPERATORS MANUAL Measurements with default values after power on: Default values for trigger conditions have been chosen to minimize effects caused by switching values. The default values may not be valid in all cases because some parts of the flow are not measured or the trigger may fail.

  • Page 78: Adjustment' Button

    OPERATORS MANUAL 4.12.2.3 'Adjustment' Button This menu item is used for setting the zero level of the connected flow sensor. Flow and pressure zero values can be set independently. Figure 34 If the zero level needs to be set, ensure that there is no flow or pressure applied to the sensor.
  • Page 79 Any adjustments made with this menu are the responsibility of the user. Since the measurement accuracy of the venTest also depends on the quality of these adjustments, these have to be carried out very carefully. IMPORTANT: When first received, some zero flow variation may be observed.

  • Page 80: O -Sensor

    OPERATORS MANUAL 4.12.3 O -Sensor (optional) This section describes the adjustment of the optional oxygen sensor. Figure 35 The calibration of the O -Sensor is based on the concentration points 21% and 100% oxygen. After selection of the desired concentration point a confirmation message is displayed to confirm the accepted value.
  • Page 81 OPERATORS MANUAL Figure 36 After successful adjustment, an 'Adjustment OK' message will appear and must be confirmed. In case of adjustment failure an error message as shown below appears and the adjustment must be repeated. Figure 37 Additional hints : •...

  • Page 82: Irma™ Ax

    4.12.4 IRMA™ AX+ (optional) This menu item is used to power on the IRMA™ and perform adjustments. Note that the sensor is connected to the RS232 connector on the back panel of the venTest, using a DB9M to DB9M adapter cable (7200-241).

  • Page 83: Creating Test Procedures And Test Reports (Optional)

    (eg. Ultrasound probe(s)), and show pictures/instructions/videos as part of a test step. A vPad-venTest plugin has been developed for vPad-Check that allows control of the venTest during testing, and retrieval of test data as the test progresses. Test reports may be printed, saved, and/or transmitted to a PC or to a CMMS system.

  • Page 84: Sensor Startup

    This section is valid for all FlowSense Sensors independent from measurement range and gas types. Connect the sensor to the flow sensor connector to the back of the venTest base unit. As soon as the sensor is detected, the sensor symbol appears in the Status. For the FlowSense Sensor High-Flow 'FSH' is displayed and for the FlowSense Sensor Low-Flow 'FSL'.

  • Page 85: O -Sensor (Optional)

    OPERATORS MANUAL 4.14.2 O -Sensor (optional) Once the sensor is connected correctly to the base unit, it is automatically recognized by the device and is ready for use. In the status bar, the sensor is not displayed. 4.14.3 IRMA™ AX+ (optional) Connect the IRMA™...

  • Page 86: Irma™ Ax+ Sensor Error Messages

    OPERATORS MANUAL 4.15.2 IRMA™ AX+ Sensor Error Messages DISPLAY MESSAGE ERROR DESCRIPTION / TROUBLE SHOOTING IRMA™ Adapter error Check correct installation of adapter. Adapter may be replaced if error still occurs. O value of IRMA™ is out of Please check concentration measurement range! N O value of IRMA™...

  • Page 87: Cleaning

    OPERATORS MANUAL 4.16 Cleaning Before cleaning, turn off the device and disconnect the electrical power / mains plug. The following care instructions will be explained in the subsequent paragraphs. • Case • Display • FlowSense Sensor 4.16.1 Housing The case can be cleaned with a soft cloth and a mild soap solution.

  • Page 88: Maintenance And Calibration

    OPERATORS MANUAL 4.17 Maintenance and Calibration 4.17.1 venTest and FlowSense Sensors The basic unit and the FlowSense Sensors should be returned annually to Datrend Systems Inc. or its authorized service center for maintenance and calibration. 4.17.2 Oxygen sensor The (optional) oxygen sensor will become less sensitive as it is used. Therefore it must be calibrated regularly by the user.
  • Page 89 OPERATORS MANUAL Time until accuracy is decreased by approx. 0.5% Average O - (adjustment Concentration interval) 100% approx. 1 Week approx. 2 Weeks approx. 4 Weeks ATTENTION: The average O concentration is the median oxygen concentration which is given to the sensor in the course of a day or a week .

  • Page 90: Waste Management

    OPERATORS MANUAL 4.17.3 Waste Management The European Union has issued legal regulations to prevent waste and other forms of exploitation of electrical and electronic equipment, and to promote reuse and recycling to improve the environmental protection of the economic parties involved in management of this waste.

  • Page 91: Technical Support

    OPERATORS MANUAL 4.17.4 Technical Support If you have any queries or problems, do not hesitate to contact our technical support: Datrend Systems Inc. #130 - 4020 Viking Way Richmond BC Canada V6V 2L4 Phone.: 1-604-291-7747 Fax: 1-604-294-2355 E-Mail: customerservice@datrend.com...

  • Page 92: Appendix A: Triggering Options

    Appendix A: Triggering Options 1 Trigger Options of venTest Examples of triggering options for the venTest are illustrated in this appendix. Only volume measurement will be discussed, but frequency and I/E measurement (TI and TE) are also influenced by trigger conditions.
  • Page 93 OPERATORS MANUAL Volume Measuring with Pressure Triggering Volume measurement with 2 pressure trigger thresholds, P1 and P2. Volume measurement is going to start with pressure exceeding P1, ending with pressure being below P2. In volume calculation an existing flow-base will be added.
  • Page 94 OPERATORS MANUAL Trigger Delay with Flow/Pressure Triggering If the flow/pressure after start falls again below trigger threshold 1 (F1/P1) within T1 time frame, the volume measurement will be aborted. If the flow/pressure after start falls below trigger threshold 1 (F1/P1) within T1 time frame, the volume measurement will be terminated.

  • Page 95: Volume Measuring Of Gases

    OPERATORS MANUAL 2 Volume measuring of Gases Measuring of air volume is not easy because gases are unlike liquids, being compressible, and expand when being warmed up. If you state a gas volume, you also have to state the respective ambient conditions of pressure (e.g.
  • Page 96 OPERATORS MANUAL • Another important factor is the temperature of the respective gas. If a gas contained in a closed container is heated, pressure will increase. On cooling down pressure will decrease. With a flexible container being able to expand, i.e. where pressure inside can adapt itself to ambient pressure, the container will expand (volume will increase) with temperature rising.
  • Page 97 OPERATORS MANUAL b) The container's walls are rigid: Volume cannot expand (V1=V2=V), pressure changes (P1 to P2). The gas law can now be transformed: P1 x V1 P2 x V2 leads to P1 x T2 Result: P2 = In our case: P2 = 1 bar * 303.2/293.2 = 1.034 bar Example: At a temperature of 20°C and a pressure of 1 bar a gas...

  • Page 98: Consequences Of Physical Characteristics Of A Gas

    OPERATORS MANUAL 3 Consequences of Physical Characteristics Of a Gas • A gas does not have a fixed volume but takes up the volume that is defined by pressure and temperature. • Volume values for gases must always be named with temperature and pressure indications.
  • Page 99 OPERATORS MANUAL Temperature Compensation Temperature compensation makes measuring independent of the current gas temperature by measuring it and then, based on this temperature, volume changes are automatically corrected. This must not be confused with the conversion at different standard conditions (as described above).
  • Page 100 OPERATORS MANUAL Two aspects must be taken into consideration: • Volume V is calculated, with a short fraction of time dt in which you measure the flow F and multiply by the fraction of time dt V= F*dt. Then you have calculated the volume which has flowed through the sensor.
  • Page 101 OPERATORS MANUAL This measurement though will also cause a measuring error because the volume that flows through the sensor before the trigger threshold has been reached is not being measured. The same happens to the volume which is still flowing while the flow is dropping under the trigger threshold.

  • Page 102: Appendix B: Understanding Data Records

    OPERATORS MANUAL Appendix B: Understanding Data Records Test records and graphical data can be recorded to internal memory, an attached/ removable memory device (SD card, USB memory stick) or to a network PC location defined by your network connections. Data can only be recorded from the combined parameter data and dual trace graphic screen.
  • Page 103 OPERATORS MANUAL Pressing the record button, , will begin the recording of both parameter va and graphical data. The parameter values will be stored in an Excel compatible CSV file named yyyy-mm-dd_hh-mm-ss_values.csv, while the graphical data will be stored in a file named yyyy-mm-dd_hh-mm-ss_graph.csv .
  • Page 104 OPERATORS MANUAL An example of a values file is: S;1450852775260;23.12.2015 07:39:35.260 T;1000;ms C;11 D;Flow;ml/min;0;0;0; D;Pressure;mmHg;0.0;0.0;1; D;I/E;;0.0;0.0;1; D;Frequency;1/min;0.0;0.0;1; D;O2;%Vol;0.0;0.0;1; D;Pressure;bar;0.000;0.000;3; D;Pressure;mmHg;0;0;0; D;Pressure;psi;0.00;0.00;2; D;Pressure;mbar;0.0;0.0;1; D;Pressure;bar;0.000;0.000;3; D;Humidity;% r. h.;0.0;0.0;1; 07:39:35.000;-253;0.0;0.0;0.0;20.6;0.993;0;0.00;0.3;0.000;17.3; 07:39:36.000;-253;0.0;0.0;0.0;20.6;0.993;0;0.00;0.3;0.000;17.3; 07:39:37.000;-259;0.1;0.0;0.0;20.6;0.993;0;0.00;0.3;0.000;17.3; 07:39:38.000;-260;0.1;0.0;0.0;20.6;0.993;0;0.00;0.3;0.000;17.3; 07:39:39.000;-1330;0.1;0.0;0.0;20.6;0.993;0;0.00;0.3;0.000;17.3; 07:39:40.000;-272;0.1;0.0;0.0;20.6;0.993;0;0.00;0.3;0.000;20.1; 07:39:41.000;8954;2.8;0.0;0.0;20.6;0.993;0;0.00;0.3;0.000;20.4; 07:39:42.000;-6676;-1.4;0.0;0.0;20.6;0.993;0;0.00;0.4;0.000;54.1; 07:39:43.000;-2583;0.1;0.0;0.0;20.6;0.993;0;0.00;0.4;0.000;56.2; 07:39:44.000;6633;0.9;0.0;0.0;20.6;0.993;0;0.00;0.4;0.000;56.6; 07:39:45.000;-7057;-1.3;0.0;46.9;20.6;0.993;0;0.00;0.4;0.000;56.4; 07:39:46.000;7212;2.2;0.0;44.8;20.6;0.993;0;0.00;0.4;0.000;62.3; 07:39:47.000;8061;1.4;0.0;44.8;20.6;0.993;0;0.00;0.3;0.000;61.7;...
  • Page 105 OPERATORS MANUAL 1.2 Graphical records The graphical record may have a different sample rate than the values record, but will be recorded for the same time period/duration, as defined in the Logging screen. As can be seen from the graph record below, it has a similar structure to the values file, but is limited to the 2 columns of data which are on the graphical display.

  • Page 106: Appendix C: Connecting To A Windows Data Share

    OPERATORS MANUAL Appendix C: Connecting to a Windows Data Share 1 General Before attempting to connect venTest to a Windows Share, it is important to know how that Share is Managed. Domains, Workgroups, and Homegroups represent different methods for organizing computers in networks.
  • Page 107 While computers in a Windows Domain can be on different local networks and sub-nets, venTest should connect to a computer on the same logical sub-net and physical local network. This appendix deals with connecting to the “Pro” versions of Windows, specifically Windows 10 Pro.

  • Page 108: Workgroup Or Domain

    OPERATORS MANUAL 2 Workgroup or Domain? venTest can connect to a Windows Data Share as long as the venTest and the target computer are on the same LAN and subnet. You need to know where the Data Share is located on the network (which computer / device), and then is that computer part of a Workgroup or a Domain.
  • Page 109 OPERATORS MANUAL Figure 44 - Select “Properties” In the panel that opens, review the section titled “Computer name, domain, and workgroup settings” Figure 45 - Computer Properties (Workgroup) In this example the name of the computer is “Spare”, and it is part of the Workgroup “WORKGROUP”.
  • Page 110 3.1 LAN / Network Address You need to know the network address of the “Share” computer. The reason for this is that venTest is not capable of resolving computer names via DNS (Domain Name Services). Proceed as follows: Figure 46 - Finding the Command Prompt In the search box located to the right of the start window icon (lower left corner of the Desktop) type “cmd”...
  • Page 111 OPERATORS MANUAL 3.2 Windows Data Share By default folders on computers are not shared. A Windows Data Share is simply a folder which has been specifically identified as “Shared”. For this example there is a folder named “SharedTestData” located in “C:\” on the “Spare” computer.
  • Page 112 When the “Permissions” dialog opens, the “Everyone” group should show with only the “Read” permission checked off. Put a checkmark in the box for “Change”, and then click “OK” to close the 3 dialog boxes. The “SharedTestData” share is now ready for the venTest to connect to. Appendix C # Page 98...
  • Page 113 Enter the username and associated password as shown as shown in Figure 52, then select the “Mount” soft-button on the venTest screen. The venTest will take approximately a minute or so and then the message “Mounting the remote folder was successful!” should appear. Press “OK” and the “Mount” button will change to “Unmount”.

  • Page 114: Connecting To A Domain Share

    OPERATORS MANUAL 4 Connecting to a Domain Share Connection to a Domain Data Share is almost identical to connecting to a Workgroup Share. The difference is the target computer which contains the Data Share is part of a Domain.
  • Page 115 OPERATORS MANUAL The Domain User “BioMedDomain” can then connect to “SharedTestData” on “Spare”: Figure 54 - venTest connected (Domain) Appendix C # Page 101...
  • Page 116 OPERATORS MANUAL Appendix C # Page 102...

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