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Fluke VT305 User Manual

Fluke VT305 User Manual

Gas flow analyzer
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VT305
Gas Flow Analyzer
Users Manual
FBC-0034
January 2013, Rev. 1
© 2013 Fluke Corporation. All rights reserved. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.

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  • Page 1 VT305 Gas Flow Analyzer Users Manual FBC-0034 January 2013, Rev. 1 © 2013 Fluke Corporation. All rights reserved. Specifications are subject to change without notice. All product names are trademarks of their respective companies.
  • Page 2 During the warranty period, we will repair or, at our option, replace at no charge a product that proves to be defective, provided you return the product, shipping prepaid, to Fluke Biomedical. This warranty does not apply if the product has been damaged by accident or misuse or as the result of service or modification by other than Fluke Biomedical.

  • Page 3: Unpacking And Inspection

    Copyright Release Fluke Biomedical 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 Fluke Biomedical.
  • Page 4 To ensure the accuracy of the Product is maintained at a high level, Fluke Biomedical recommends the product be calibrated at least once every 12 months. Calibration must be done by qualified personnel. Contact your local Fluke Biomedical representative for calibration.
  • Page 5 Information in this document is subject to change and does not represent a commitment by Fluke Biomedical. Changes made to the information in this document will be incorporated in new editions of the publication. No responsibility is assumed by Fluke Biomedical for the use or reliability of software or equipment that is not supplied by Fluke Biomedical, or by its affiliated dealers.

  • Page 7: Table Of Contents

    Table of Contents Title Page Introduction ........................1 Safety Information ......................1 Responsibility and Warranty ..................3 Intended Use ......................... 3 Software and Firmware versions ................... 4 System Requirements ....................4 Female Users ........................ 4 Start Up ......................... 4 Power Supply ......................5 Filter ..........................
  • Page 8 VT305 Users Manual Numerical Values ...................... 13 Graphical Values ....................... 13 Filter .......................... 13 How to Save Data ..................... 14 Zero-Point Calibration ....................14 Connect the Product ...................... 15 Setup for Ventilator Measurements ................16 Setup for Precise Flow Measurements ..............17 Setup for Dusty or Contaminated Gases ..............
  • Page 9 Contents (continued) Find the Correct Trigger Setting ................40 Flow Curve Downstream of the Y-Piece .............. 40 Flow Curve Upstream of the Y-Piece ..............40 Pressure Curve Upstream of the Y-Piece ............41 Special Cases ......................41 Inspiration Volume Vti ....................41 Expiration Volume Vte ....................
  • Page 10 VT305 Users Manual...

  • Page 11: List Of Tables

    List of Tables Table Title Page Symbols ..........................3 Product Parts ........................4 Front-Panel Controls ......................8 Electrical Interfaces ......................10 Settings Screens ........................11 Maintenance Tasks ....................... 45 Standard Accessories ......................46 Optional Accessories ......................46 Measured Values and Units ....................56 Conversion Factors .......................
  • Page 12 VT305 Users Manual...

  • Page 13: List Of Figures

    List of Figures Figure Title Page Ports for Power Connection ....................5 Flow Channel ........................6 Differential Pressure Ports ....................6 High Pressure Ports ......................7 Cell ..........................7 Electrical Interfaces ......................9 Start-Up Screen ........................10 Numerical Values Screens ....................13 Measured Curves Screens ....................
  • Page 14 VT305 Users Manual Formatted Excel File of Measurement Data ................23 Configuration Utility Web Page ..................... 25 Trigger Values Web Page ..................... 26 Graphical Screen Configuration Web Page ................27 Create Configuration File Web Page ..................29 Configure Triggers Screen ....................29 Miscellaneous Configuration Window ...................

  • Page 15: Introduction

    Product. Safety Information This manual is applicable for the VT305 (the Product). It is A Warning identifies conditions and procedures that are a compact, portable and easy-to-use measurement dangerous to the user. A Caution identifies conditions and instrument.
  • Page 16 VT305 Users Manual • Do not use and disable the Product if it is  Warning damaged. To prevent possible electrical shock, fire, or personal injury: • Do not use the Product if it operates incorrectly. • Read all safety Information before you use •...

  • Page 17: Responsibility And Warranty

    Go This Product is intended to be used in a laboratory to Fluke’s website for recycling information. environment, outside of patient care areas. It is not intended for use on patients or on equipment connected to patients.

  • Page 18: Software And Firmware Versions

    VT305 Users Manual Software and Firmware versions Table 2. Product Parts This manual is applicable for the Product with software Name Item version 3.1 or higher and hardware version 1.0 or higher. VT305 A product with different versions can operate differently from this manual.

  • Page 19: Power Supply

    Gas Flow Analyzer Start Up Connect the power adapter into a mains socket with a Power Supply voltage of 100 V ac to 240 V ac at 50 Hz or 60 Hz. The Product can be operated from the power supply or the built-in rechargeable battery.

  • Page 20: Flow Channel

    VT305 Users Manual Differential Pressure Flow Channel The differential pressure connections are used to measure The flow port can be used bidirectionally to measure flow, differential pressure. Figure 3 shows the differential volume, chamber gas temperature, oxygen, and pressure pressure connections.

  • Page 21: High Pressure

    Figure 5. O Cell For measurements to a maximum of 200 mbar, Controls Fluke Biomedical recommends you use the differential pressure port. Accuracy is 100 times Table 3 is a list of the front-panel controls. higher.  Caution To prevent damage to the high-pressure sensor, do not measure pressure more than 15 bar.
  • Page 22 VT305 Users Manual Table 3. Front-Panel Controls gyo012.epx Item Description Item Description Display/Change measurement curves Future use Show/Change numerical measurement values Battery on charge Change settings/save data Flow direction LEDs Show menu/change menu/zero calibration Function error LED On/Off Screen Micro SD card slot...

  • Page 23: Electrical Interfaces

    Gas Flow Analyzer Electrical Interfaces Electrical Interfaces The Product has six electrical interfaces. Table 4 is a list of the electrical interfaces and references Figure 6. Trigger Input Analog OUT 2 Analog OUT 1 N.C. TxD (output) RxD (Input) gyo011.eps Figure 6.

  • Page 24: Operation

    VT305 Users Manual Table 4. Electrical Interfaces Item Description The Micro-SD card is used for software updates and Product configurations. Measurement data can be output through the micro SD card. See the Measurement Data section. The O interface is used to connect the O2 sensor to the Product.
  • Page 25 Screen Description Ethernet The Ethernet screen is used to Default set the Ethernet communication Information parameters. 192.168.1.1 VT305 Shows device data. You can Subnet: 255.255.255..0 Owner: set Owner and Company data Company: fields with the browser-based Next Calib: configurator. See the Product...
  • Page 26 VT305 Users Manual Table 5. Settings Screens (cont.) Table 5. Settings Screens (cont.) Screen Description Screen Description Set Gas Types O2 Calibration Sets the gas type for the gas Used to calibrate the O cell. Gas Type O2 Calibr. to be measured. See the See the O Sensor section.

  • Page 27: Numerical Values

    Gas Flow Analyzer Operation When no plateau pressure is available, the formula has a Numerical Values divisor of zero. The Product will show “---“ in the display Push on the display to show the numerical values screen when this happens. in the display.

  • Page 28: How To Save Data

    VT305 Users Manual The available filter selections are as follows: Zero-Point Calibration Push and hold X for 5 seconds to start the zero calibration • None (Display of the latest measured value without of the pressure and flow sensors. While the Product does...

  • Page 29: Connect The Product

    Gas Flow Analyzer Connect the Product 3. Connect the test lung. Connect the Product 4. Connect the breathing apparatus. Refer to Figure 12 when you do the subsequent steps. For more information on how to connect the breathing 1. Always use the dust filter. apparatus, see the How to Measure Respiratory Data 2.

  • Page 30: Setup For Ventilator Measurements

    To test and calibrate ventilators, use the inlet pipe between the breathing circuit and the Product, as shown in Figure 13. Use the filter to improve laminarity of the flow. This improves measurement accuracy. Breathing circuit Inlet Pipe Fluke VT305 Testlung Positive flow direction gyo052.eps Figure 13. Ventilator Connections...

  • Page 31: Setup For Precise Flow Measurements

    Gas Flow Analyzer Connect the Product For precise flow measurements, put the inlet pipe and filter Setup for Precise Flow Measurements on the Product as shown in Figure 14. Note The measured gas must be free of oil, grease, and dust.

  • Page 32: Setup For Dusty Or Contaminated Gases

    VT305 Users Manual Note Setup for Dusty or Contaminated Gases The gas must not contain oil or grease. When you use the Product to measure gas that contains dust or other contaminants, use the filter as shown in Figure 15.

  • Page 33: Setup For High Pressure Gases

    Gas Flow Analyzer Connect the Product  Caution Setup for High Pressure Gases To prevent damage to the Product, do not The Product automatically compensates for the gas apply more than 800 mbars to the airway pressure in the flow channel up to 150 mbar. Use the high channel port of the Product.

  • Page 34: Measurement Data

    VT305 Users Manual Measurement Data Product measurements can be exported on the micro-SD card, analog out interface, or the RS-232 interface. Use as USB mass storage? Store Measurement Data on the Micro-SD Card Push and hold O for 5 seconds. This stores the measurement data on the Micro-SD card.

  • Page 35: How To Read The Data On The Computer

    Gas Flow Analyzer Measurement Data How to Read the Data on the Computer Figure 19 shows the files and directory structure on the Micro-SD card used by the Product. gyo073.jpg Figure 19. Micro SD Card Files...

  • Page 36: To Make An Excel File With Saved Values

    VT305 Users Manual Excel file open dialog box. See Figure 20. Double click To Make an Excel File with Saved Values on a .csv file in the DATA folder to open it. 1. Open the SetupReportFormatter.bat file. This file installs ReportFormatter.xlsb in the Report/XLSTART When you open a .csv file, a dialog box shows in the...
  • Page 37 Gas Flow Analyzer Measurement Data 2. Click Yes to make a formatted file. The Product test Note report like that shown in Figure 21 is made. Files on the Micro-SD card cannot be renamed. 3. You can change the Excel file as necessary. gyo028.jpg Figure 21.

  • Page 38: Product Configuration

    Figure 23 shows in the computer display. you cannot find the micro SD card, talk to your The submenu selections are VALUES, CURVES, Fluke Biomedical distributor or call Fluke TRIGGERS, INTERFACE, and MISC. You click on these Biomedical technical support. See Technical submenu hyperlinks to open the configuration page that Support in the front of this manual.
  • Page 39 Gas Flow Analyzer Product Configuration gyo030.jpg Figure 22. Configuration Utility Web Page...

  • Page 40: Values Configuration

    VT305 Users Manual Values Configuration gyo031.jpg Figure 23. Trigger Values Web Page The values configuration screen lets you set the value parameters in the Product. Click on the down arrow in each combo box to show a list of parameters or values that you click on to set. To switch between Value 1, Value 2, and Value 3, click on the grey banner of the window that shows the values you want to change.

  • Page 41: Curves Configuration

    Gas Flow Analyzer Product Configuration Curves Configuration Change the displayed curves or associated units on the Product with the drop down combo boxes shown in Figure 24. gyo032.jpg Figure 24. Graphical Screen Configuration Web Page Note The gas temperature shown on the display is the temperature of the gas in the measurement chamber and not the temperature of the gas that flows into the Product.

  • Page 42: Interface Configuration

    VT305 Users Manual Interface Configuration Use the Configure interfaces screen to setup the Ethernet connection and analog output channels. Use the drop-down lists to set the IP configuration and analog outputs. See Figure 25. gyo034.jpg Figure 25. Create Configuration File Web Page...

  • Page 43: Trigger Configuration

    Gas Flow Analyzer Product Configuration Trigger Configuration Use the Configure triggers screen sown in Figure 26 to set one of the three preconfigured triggers. gyo064.jpg Figure 26. Configure Triggers Screen Click on the active button in one of the three windows to select the trigger you want to use in the Product. Some parameters are set with the drop-down lists.

  • Page 44: Miscellaneous Configuration

    VT305 Users Manual Miscellaneous Configuration Change the miscellaneous parameters on the Product with the drop down combo boxes shown in Figure 27. gyo054.jpg Figure 27. Miscellaneous Configuration Window...

  • Page 45: How To Setup An Ethernet Connection

    Gas Flow Analyzer Product Configuration 6. Click on Change adapter settings. How to Setup an Ethernet Connection There are three Ethernet setup procedures: Default, 7. Double click on the Local Area Network. See Configured, and DHCP-Client. Figure 29. Default Ethernet Setup 8.
  • Page 46 VT305 Users Manual gyo074.eps Figure 29. Computer Ethernet Setup Windows...
  • Page 47 Gas Flow Analyzer Product Configuration gyo075.eps Figure 30. Ethernet IP Address Properties Form...

  • Page 48: Configured And Dchp Ethernet Setup

    Oxygen Sensor Calibration – Air Only the Product to the network. Note 2. Push X on the Product until the Ethernet Configured Fluke Biomedical does not recommend you or Ethernet DCHP – Client screen shows in the Product display. calibrate the oxygen sensor with air.

  • Page 49: Oxygen Sensor Calibration - O And Air

    Gas Flow Analyzer O2 Sensor Note O2 Calibration To stop the calibration procedure, push X. 100% O2 Air calibration starts and will take 114 seconds to Apply 25 I/min (0) complete. Under no circumstances interrupt the flow of Press o to contiue air through the flow channel.
  • Page 50 VT305 Users Manual The screen in Figure 35 shows in the display when the calibration is done. O2 Calibration O2 and Air successful Press any key to exit gyo069.eps Figure 35. O Calibration Successful Screen gyo035.eps Figure 36. Protective Cap Removal Turn the O sensor clockwise to attach it to the Product.

  • Page 51: Measure Respiratory Data

    Gas Flow Analyzer Measure Respiratory Data Measure Respiratory Data General To measure key respiratory data, the Product must read out a breath cycle from the measured pressure and/or flow chart curves. This is controlled through the triggers shown in Figure 38. gyo036.eps Figure 37.
  • Page 52 VT305 Users Manual Breath Cycle Inspiration Expiration Start Trigger End Trigger gyo037.eps Figure 38. Breath Cycle It is very important to set the start and stop triggers Note correctly. These triggers significantly influence the The start trigger is interpreted as the start of the measurement results because they trigger the breath inspiration phase.

  • Page 53: Connection To The Respiratory Apparatus

    Gas Flow Analyzer Measure Respiratory Data Connection to the Respiratory Apparatus Test Lung Ventilator There are three different methods to connect the Product to the respiratory apparatus: Fluke VT305 • Downstream of the Y-piece Fluke VT305 Test Lung Ventilator gyo040.eps...

  • Page 54: Find The Correct Trigger Setting

    VT305 Users Manual of air, the 3 l/min is not counted as inspiration volume. Note When you type in: In such situations it is important to keep in mind that the trigger is significantly higher than the noise of the base Base flow: on 3.0 l/min...

  • Page 55: Pressure Curve Upstream Of The Y-Piece

    Gas Flow Analyzer Measure Respiratory Data Note Note Flow cannot be used here as a trigger. The The trigger is significantly higher than the noise of pressure curve must be used. the base line. If not, the trigger value must be increased.
  • Page 56 VT305 Users Manual Breath Cycle Inspiration Expiration Start and End Trigger gyo044.eps Figure 42. Inspiration Volume...

  • Page 57: Expiration Volume Vte

    Gas Flow Analyzer Measure Respiratory Data Expiration Volume Vte Figure 43 shows the optimal trigger values to measure Vte. Breath Cycle Expiration Inspiration Start Trigger End Trigger gyo045.eps Figure 43. Expiration Volume The start trigger must be set to S and the end trigger to E.

  • Page 58: Care And Maintenance

    VT305 Users Manual • Keep cells and battery packs clean and Care and Maintenance dry. Clean dirty connectors with a dry, clean cloth.  Warning To prevent possible electrical shock, fire, or • Do not keep cells or batteries in a...

  • Page 59: Accessories And Spare Parts

    The pressure loss for a flow of 60 l/min cannot be more Fluke Biomedical Europe than 2 mbar. If the pressure is more Science Park Eindhoven 5110 than 2 mbar, the filter must be 5692EC Son replaced.

  • Page 60: Disposal

    VT305 Users Manual Disposal Table 7. Standard Accessories The manufacturer is responsible for disposal of this Item Part No. Product. The device must be shipped (free and with duty O2 SENSOR ASSEMBLY 4281611 paid) to the manufacturer for disposal. ACCULUNG II PORTABLE PRECISION •...

  • Page 61: Specifications

    Gas Flow Analyzer Specifications Specifications Display ..............26 mm x 33 mm Real time curves ........... Flow, Pressure, Volume, temperature of gas inside the measurement chamber, oxygen, respiratory parameters Interfaces ............... RS-232, USB, Ethernet, CAN, Analog Out, TTL Temperature (gas in measurement chamber) Operating ............
  • Page 62 VT305 Users Manual Trigger Input ........... 5 Vdc to 24 Vdc ..............9 Vdc to 29 Vdc RS-232 Port Baud Rate ............19200, 8 bits, no Parity, 1 stop bit Measurement Variables Air and N2 Flow Measurements Range ............±300 sl/min Accuracy .............
  • Page 63 Gas Flow Analyzer Specifications N2O/O2 Mixtures Flow Measurements Range ............±80 sl/min Accuracy ............. ±4.0 %* or ±0.3 l/min Ambient pressure compensation accuracy ..25 °C to 30 °C Temperature compensated ......yes Pressure High Range ............0 to 10 bar Accuracy .............
  • Page 64 VT305 Users Manual Respiratory Parameters Breathing Rate (BR/min) Range ............1 bpm to 1000 bpm Accuracy ............. ±1 bpm or ±2.5 % ** Time (Ti, Te) Range ............0.05 s to 60 s Accuracy ............. ±0.02 s Ratio (I:E) Range ............1:300 to 300:1 Accuracy .............

  • Page 65: Operation Principle Of Flow Measurement

    Gas Flow Analyzer Operation Principle of Flow Measurement Operation Principle of Flow Measurement A differential pressure measurement is used to find the flow in the flow channel. To make the pressure difference, a linear flow element is used as a flow resistance.

  • Page 66: Gas Standard

    VT305 Users Manual Gas Standard Gas Standard Temperature Pressure Ambient Temperature and Pressure (ATP) Current Gas temperature Current ambient pressure Ambient Temperature and Pressure Dry (ATPD) Current Gas temperature Current ambient pressure Ambient Temperature and Pressure Saturated (ATPS) Current Gas temperature Current ambient pressure Ambient pressure at 21 °C...

  • Page 67: Abbreviations And Glossary

    Gas Flow Analyzer Abbreviations and Glossary Abbreviations and Glossary Alternating current Amp time-lag 1 bar = 14.50 psi Base flow The base flow is a constant flow which should not be considered for the calculation of the volume. °C Degrees Celsius Conversion of Celsius (C) to Fahrenheit (F): F = 9*C/5 + 32 Cstat...
  • Page 68 VT305 Users Manual °F Degrees Fahrenheit Conversion of Fahrenheit (F) to Celsius (C): C = (F–32)*5/9 Ground Hour High Frequency Hertz (1 Hz = 1 s – 1) Breathing-time ratio: inspiration to expiration Protection class according to standard Liter lb, lbs...
  • Page 69 Gas Flow Analyzer Abbreviations and Glossary Max., max. Maximal mbar Millibar (1 mbar = 10 bar) Minute Min., min. Minimal Milliliter (1 ml = 10 Millimeter (1 mm = 10 PEEP Positive End Expiratory Pressure PF Exp. Peak flow during expiration PF Insp.
  • Page 70 VT305 Users Manual sl/min Standard liter per minute (converted to ambient conditions of 0°C and 1013 mbar) Ti/TCycle Ratio: inspiration time to time of one breathing cycle Volt Apparent power consumption of the device Volt alternating current Volt direct current μm...

  • Page 71: Measured Values And Units

    Gas Flow Analyzer Measured Values and Units Measured Values and Units Table 9 is a list of measured values with their unit of measure. Table 9. Measured Values and Units Type Measured Value Description Units Pressure in the flow channel, Airway Pressure also called Paw (pressure mbar, bar, inH...
  • Page 72 VT305 Users Manual Table 9. Measured Values and Unit (cont.) Type Measured Value Description Units Positive End Expiratory PEEP Pressure mbar, bar, inH O, cmH Mean pressure Pmean psi, Torr, inHg, mmHg, hPa, Peak pressure Ppeak Plateau pressure Pplateau Volume per min: expiration...

  • Page 73: Conversion Factors

    Gas Flow Analyzer Conversion Factors Conversion Factors Table 10 is a list of conversion factors. Table 10. Conversion Factors Units Equivalent 0.001 bar 1 mbar 100 Pa 1 hPa 0.1 kPa 0.75006 Torr (760 Torr = 1 atm) 0.75006 mmHg (at 0°C) 0.02953 inHg (at 0°C) 1.0197 cmH O (at 0°C)
  • Page 74 VT305 Users Manual...

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