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VT MOBILE Gas Flow Analyzer

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VT MOBILE

Gas Flow Analyzer

Getting Started Manual

  PN 2544892 January 2006   © 2006 Fluke Biomedical. All rights reserved. Printed in USA Specifications subject to change without notice.

 

Warranty Warranty and Product Support Fluke warrants against materials and workmanship one full year from the dateprovided of original purchase. DuringBiomedical the warranty period,this we instrument will repair or, at ourdefects option, in replace at no charge a productfor that prove s to be defective, you return the product, shipping prepaid, to Fluke Biomedical. Biomedical . This warranty does not apply if the product has been damaged by accident or misuse mi suse or as the result of service or modification by other than Fluke Biomedical. IN NO EVENT SHALL FLUKE BIOMEDICAL BE LIABLE FOR CONSEQUENTIAL DAMAGES. Only serialized products and their accessory items (those products and items bearing a distinct serial number tag) are covered under this one–year warranty. PHYSICAL DAMAGE CAUSED BY MISUSE OR PHYSICAL ABUSE IS NOT COVERED UNDER THE WARRANTY. Items such as cables and nonserialized modules are not covered under this warranty Recalibration of instruments is not covered under the warranty. This warranty gives you specific legal rights. You may also have other rights which vary from state to state, province to province, or country to country. This warranty is limited to repairing the instrument to Fluke Biomedical’s specifications . Warranty Disclaimer Should you elect to have your instrument serviced and/or calibrated by someone other than Fluke Biomedical, 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 Fluke Biomedical for factory service and calibration, especially during the original warranty period. (When returning the product for any reason, be sure to follow the “Return Procedure” in “Standard Terms and Conditions” in the section in the Operator’s Manual called “Notices.”) In all cases, breaking the tamper-resistant Quality Seal should be avoided at all cost, as this seal is the key to your original instrument warranty. In the event that the seal must be broken to gain internal access to the instrument, you must first contact Fluke Biomedical’s Technical Assistance Department at 775-883-3400. You will be required to provide the serial number for your instrument as well as a valid reason for breaking the Quality Seal. You should break this seal only after you have received factory authorization. Do not break the Quality Seal before you have contacted us. Following these steps will help ensure that you will retain the original warranty on your instrument without interruption.

Manufacturing Location The VT MOBILE is manufactured in Everett, WA, USA.

 

 

Table of Contents

Title

Page

Introduction ............................................. .......................................................................................... ....................................................................... .......................... Unpacking the VT MOBILE .......................................................................................... .......................................... .................................................. .. Operation, Storage, and Maintenance............................................................................ Support........................................................................................................................... Controls and Indicators ............................................................................................... ............................................. ..................................................... ... Powering Up................................................................................................................... Selecting the Operating Mode........................................................................................ Printing ............................................. ............................................................................................. .............................................................................. ..............................

1   1  5  5  5  10  10  10 

Using the Keys .............................................. .............................................................................................. ................................................................. ................. Setting Up ......................................... ........................................................................................ ............................................................................. .............................. Selecting the Gas Type ........................................ ....................................................................................... ..................................................... ...... Selecting the Correction Mode ............................................ .................................................................................. ...................................... Setting the Breath Detect Threshold.......................................................................... Setting Zero Warn ON or OFF................................................................................... Setting the Date and Time......................................................................................... Checking Version and Serial Numbers......................................................................

11 11  11  11  12  12  13  13 

 

Accessing Help.......................................................................................................... 13

i

 

VT MOBILE Getting Started Manual Making a Measurement More Accurate ............................................. ......................................................................... ............................ 13  Warm-up and Zeroing ........................................... ............................................................................................. .................................................... .. 13  Verifying Oxygen Sensor Calibration ........................................................................ ........................................... ............................. Calibrating the Oxygen Sensor ................................................................................. ............................................... .................................. Using the Tem Temperature perature and Relative Humidity Humidity Sensor ............................................. Checking the Barometric Pressure................................................. Pressure............................................................................ ........................... Measuring Low Pressure ............................................. ............................................................................................ .................................................. ... Measuring Low Flow ............................................ ............................................................................................ .......................................................... .......... Measuring High Pressure ............................................ ........................................................................................... .................................................. ... Checking Ventilator Parameters .............................................. .................................................................................... ...................................... Service.................................................. Service.. ............................................................................................... ......................................................................... .......................... Battery ............................................ ........................................................................................... ............................................................................... ................................ Specifications................................................................... Specifications................... .............................................................................................. .............................................. General Specifications ............................................ ........................................................................................... .................................................. ... Measurement Specifications ..................................................................................... ................................................ ..................................... Measurement Parameter Specifications ................................................................... ............................................... .................... Symbols ....................................... .................................................................................... .................................................................................. .....................................

ii 

 

14 14   15  15  15  17  18  20  25  25   26  26  27  30  33 

 

 

List of Tables

Table

Title

Page

1. 2. 3. 4. 5.

VT MOBILE Versions ............................................. .......................................................................................... ............................................................... .................. Standard Accessories................................... Accessories.................................................................................. ......................................................................... .......................... Available Accessories........................... Accessories.......................................................................... ................................................................................. .................................. Controls and Indicators................................... Indicators.................................................................................. ....................................................................... ........................ Ventilator Parameters............. Parameters............................................................ ............................................................................................... ................................................

2  2  3  7  22 

iii

 

VT MOBILE Getting Started Manual

iv 

 

Warnings (continued)  

List of Figures

Figure

Title

Page

1. 2. 3. 4. 5. 6. 7. 8.

Key Available Accessories .......................................... ......................................................................................... .......................................................... ........... Controls and Indicators................................... Indicators.................................................................................. ....................................................................... ........................ Measuring Low Pressure...... Pressure..................................................... ............................................................................................... .................................................. .. Low Pressure Screens ............................................ ......................................................................................... .............................................................. ................. Measuring Low Flow.......................................... Flow.......................................................................................... .................................................................... .................... Low Flow Screens ........................................................................................ ........................................ ......................................................................... ......................... Measuring High Pressure ............................................ ............................................................................................ .......................................................... .......... High Pressure Screens.................................... Screens................................................................................. ...................................................................... .........................

4  6  16  16  17  18  19  20 

9. 10. 11. 12. 13.

Checking Parameters................................................ ............................................................................................ ............................................ Ventilator Ventilator ParameterParameters Screens .................................................. ............................................................................................... ............................................. Additional Parameter Screens ............................................................................................... .................................................. ............................................. Measuring Airway Pressure................... Pressure...................................................................... ................................................................................ ............................. Changing the Battery.............. Battery.............................................................. ............................................................................................... ...............................................

21 23  24  24  25 

v

 

 

VT MOBILE Getting Started Manual

vi 

 

 

Warning. Read before using Analyzer. To avoid personal injury, follow these guidelines:  

Do not use the VT MOBILE in any manner not specified in the Operator’s Manual. Otherwise, the protection provided by this product may be impaired.

 

When measuring oxygen, always keep all components of test setup well away from open flame or other combustion-starting devices.

 

Use in well-ventilated space. Be aware that a gas defined with VT for Windows software as

 

‘User’ may be unknown while using the t he VT MOBILE. For high pressure measurements, always turn off gas source before connection or disconnection of VT MOBILE. Be aware that there is no pressure indication on the VT MOBILE screen when VT for Windows software is in control.

• 

Always press power off on the VT MOBILE and unplug the battery eliminator before cleaning the outer surface.

• 

Inspect the product, if the instrument appears damaged or appears to operate in a manner

• 

• 

not specified in the manual, DO NOT CONTINUE CONTINUE USE. Return the product for service. Avoid spilling liquids on the analyzer; fluid seepage into internal components creates corrosion and a potential shock hazard. Do not operate the instrument if internal components are exposed to fluid. Do not open this product. There are no user replaceable parts.

vii 

 

 

Caution The VT MOBILE should be calibrated annually. Only qualified technical personnel should perform troubleshooting and service procedures on the VT MOBILE. Do not expose the system to temperature extremes. Ambient operating temperatures should remain between 10 and 40 °C. System performance may be adversely affected if temperatures fluctuate above or below this range. Clean only with a damp, lint-free cloth, using a mild detergent, and wipe down gently.

viii

 

Getting Started Manual Introduction

Unpacking the VT MOBILE

This Getting Started Manual provides basic information on the Fluke Biomedical VT MOBILE Gas Flow Analyzer (hereafter referred to as the Analyzer.) Refer to the Operators Manual provided on the CD for complete operating instructions.

Referring to Table 2, unpack the Analyzer  and  and its accessories from the shipping carton. Identify accessories for your Analyzer with the aid of Table 3 and Figure 1. Check for missing parts. Carefully inspect the unit for damage, such as cracks, dents, or bent parts. If items are missing or any physical damage is apparent, call Fluke Biomedical for assistance. For information on ways to contact Fluke Biomedical, see the section in this manual

Seven language options support the available factory-set versions of the Analyzer . These are identified by the overlay language, as described in Table 1. The Analyzer is a general-purpose, portable gas flow analyzer with special modes designed specifically for testing mechanical patient ventilators. The Analyzer measures bi-directional flow in both high and low ranges as well as high and low pressure ranges. Not for use in the patient environment.

called “Support.” the carrier if the damage appears to be theAlso, resultnotify of a shipping mishap. Maxtec oxygen sensor distributed by Fluke Biomedical.

1

 

VT MOBILE Getting Started Manual Table 2. Standard Accessories

Table 1. VT MOBILE Versions Version

2

Language Overlay

Part Number

 Accessory Kit

Item

Part Number 2131367

VT MOBILE US

English

2427911

High-Flow Sensor

2438334

VT MOBILE FRA

French

2553550

Low-Flow Sensor

2548422

VT MOBILE DEU

German

2553561

Italian

2553577

High-Pressure Adapter (Luer to Male Nut/Nipple D.I.S.S. Oxygen)

2548303

VT MOBILE ITAL VT MOBILE SPAN

Spanish

2553589

Low-Pressure Low-Pressur e Adapter

2454175

VT MOBILE JPN VT MOBILE CHI

Japanese Chinese

2553610 2553605

Oxygen Sensor Oxygen Sensor Cable 6 ‘

2448801 2448051

‘T’, 15 mm ID, 22 mm ID, 15 mm ID

2457028

VT MOBILE RS232 Cable, 6’

2075257

9 VDC Battery (Alkaline)

614487

Soft Carrying Case

2523995

Information Packet: Getting Started Manual; Quick Reference Card; CD with Quick Reference Card, Getting Started Manual, Operators Manual, VT for Windows (V2.01.00 +)

2544926

 

Gas Flow Analyzer Unpacking the VT MOBILE  

 

Table 3. Available Accessories

Table 3. Available Accessories (cont.)

Item High-Flow Sensor

Part No. 2438334

Item  Accessory Kit for VT MOBILE

Part No. 2131367

Low-Flow Sensor

2438352

2558269

High Pressure Adapter (Luer to Female D.I.S.S. Oxygen)

2548315

High Pressure Adapter (Luer to Male Nut/Nipple D.I.S.S. Oxygen)

2548303

CD, includes: Quick Reference Card, Operators Manual, Getting Started Manual, VT for Windows (V2.01.00 +), other matter.

2075257

Low-Pressure Low-Pressur e Adapter

2454175

Serial Communications Cable (RS232)

Oxygen Sensor

2448801

Oxygen Sensor Cable, 6’

2448051

DB9F to miniature RS232, 6’ Power Adapter, Universal (USA and International)

2118212

“T”, 15mm ID end, 22mm ID end, 15mm ID end

2457028

Soft-side Carrying Case

2523995

Temperature and RH Sensor  Assembly

2541622

 ACCU LUNG Portable, Portable, Precision Test Lung

2387318

3

 

VT MOBILE Getting Started Manual

High-Flow Sensor

RS232 Cable

Low-Flow Sensor

Temperature/RH Sensor

Oxygen Sensor

Low-Pressure Adapter ACCU LUNG High-Pressure Adapters

  ede03f.eps

Figure 1. Key Available Accessories

4

 

Gas Flow Analyzer Operation, Storage, and Maintenance  

 

Operation, Storage, and Maintenance

Contact Fluke Biomedical in the following ways

Operate the Analyzer  in  in a dry area within temperature limits of 10 °C to 40 °C. The maximum operating relative humidity at temperatures up to 31 °C is 80 % noncondensing, decreasing linearly to 50 % non-condensing at 40 °C.

Telephone:

(800) 648-7952 (in the U.S.A.)

Mail:

Fluke Biomedical 6920 Seaway Blvd.

Store the Analyzer at a temperature of -25 °C to 50 °C and a non-condensing relative humidity of 0 to 95 %. The battery is the only user-serviceable part in the Analyzer. For safety reasons, maintenance requiring other internal access should be performed only by an experienced technician.

Everett, WA 98206 E-mail

[email protected]; [email protected]; [email protected]  [email protected] 

Controls and Indicators Figure 2 illustrates the controls and indicators found on the front and sides of the Analyzer. Table 4 describes the related call outs.

Support After power-up and connection, if the new  Analyzer  fails  fails to start or operate successfully, please contact Fluke Biomedical immediately. The Technical Assistance Center is open AM Friday, and 5:00 PM, Pacific Standard Time,between Monday 8:00 through except holidays. When contacting the Technical Assistance Center, please provide the following information: Analyzer  version  version and serial number, specific steps necessary to reproduce the problem, and a phone number where you can be contacted during the day.

5

 

VT MOBILE Getting Started Manual

5 9

4 6

3

 L E  I L  O B  M  M  V T

GA

7

 E R  Y Z A L  A N  O W  L S F

F2

18

Memory

Back

  ENTER

 F 2

 F 1

 r y y  m o  M e

11

17

 u p  u   S e t  T E  T  E R  E N

 3  S  T E R  M E  E F  I N  N G  R A  2  D  I M  A  P  P  T M  O R  6  E  L A T  C  I L  N T  A B  U R  V E  1  R E S S  N S  O  E  E  P  R  M N  U M E  C    S S  L  5  L _  ,  @  @  V  V O  V O  R M  W /  F O  9  V E  K L  U R E  F L O  S  W A 4  J K  S  N T  Y Z  O 2  E S  E  R  P  E M  W X  R H  R  U  %  I  A S  8  G H  O W  M E  R M  E  F L  H E  U V  R  O T  7  T  E S S U  S  N  O  O  P R  E  C T I  O R  R S  O L  FF U N  0  M  V  P Q  / V  A L   W  I A  E C  O  S  F L O  R  S P  Z E S O R  N  S E  D  E N  T R E S T  T

 k  B a c

10

  Setup

8

2

1

F1

_,    @

VENTILATOR PARAMETERS  

1

FLOW/VOL FLOW/ VOL

ABC

2

DEF

3

12

TIMING

PRESSURE

16 WAVEFORM SCREENS GHI GHI

4

FLOW

JKL

5

MNO

6

VOLUME

PRESSURE

13

OTHER MEASUREMENTS PQRS PQRS

15

7

FLOW/VOL FLOW/ VOL

TUV

8

WXYZ

9

%RH %R H O2

PRESSURE

SPECIAL FUNCTIONS 0

TREND

ZERO

TEST

SENSORS

 

MORE

14

ede01f.eps

Figure 2. Controls and Indicators

6

 

Gas Flow Analyzer Controls and Indicators  

 

Table 4. Controls and Indicators No.

 A

Name Miniature RS-232 Serial Port

Description/Use Connect the RS-232 cable here (for use with VT for Windows software.)

 B

Battery Eliminator Connector

Connect the battery eliminator here. Use the battery eliminator whenever possible.

 C

Battery Eliminator Indicator

Glows green when the battery eliminator is supplying power to the  Analyzer. Note that this power power source cannot recharge recharge the battery.

 D

High Pressure Connector

Connect the High Pressure Adapter here. The Analyzer makes high pressure measurements from -2 to 100 psi.

 E

Flow and Low Pressure Connector

Insert one of three coded modular connectors here; the Analyzer automatically detects the connector type. The Analyzer use the High-Flow Sensor to measure up to ± 150 lpm, the Low-Flow Sensor to measure up to ± 25 lpm, or the Low-Pressure Adapter to measure from -20 to 120 cmH2O.

 F

Display Screen

Shows measurement parameters and statistics (Min, Avg, Max), waveforms, and setup selections. English only. waveforms,

 G

Oxygen Sensor Connector

Connect the Oxygen Sensor here. The Analyzer makes O2 measurements from 0 to 100%.

 H

Temperature, RH Sensor Connector

Connect the optional Temperature and Relative Humidity Sensor here.

7

 

VT MOBILE Getting Started Manual Table 4. Controls and Indicators (cont.) No.

 I

Softkeys     

Name

F



 J

Memory Key     

 K

Help Key     

 L

 M

Press J to save, view, or delete memory files. A memory file contains data to reconstruct all aspects of a stored screen (reading, statistics, waveform waveform,, parameters, etc.)

J

Press I to access context-sensitive context-sensitive help. If necessary, press B or C to

I

scroll through additional text. Press

Ventilator Parameters Keys

K

L

M

Waveform Screens Keys

N

Description/Use Use F   and and G to access selections identified on the screen immediately above these keys.

L

O

A to return to the previous screen.

Press K, L, or M to display ventilator measurement parameters. When text entry is required, press K successively to cycle through 1  -   @. Press L to cycle through A  B  C  2, and press M to cycle through D  E  F  3. Press N, L, or O to display specific waveforms. For any waveform, press F (Rescale) to optimize the display or press G  (Units) to select new measurement. entry is required, N successively to units cycleof through G  H When  I  4.text Press L  to cycle press through J  K  L  5, and press O to cycle through M  N  O  6.

8

 

Gas Flow Analyzer Controls and Indicators  

 

Table 4. Controls and Indicators (cont.) No.

 N  

Name Other Measurements Keys

K

L

 O  

Special Functions Keys

 P  

Navigation Keys     

Q

R

B C D 

P



Description/Use Press K to access direct readings and statistics of flow and volume. Press L for readings and statistics of high or low pressure. Repeated presses of P yield readings of O2 %, temperature, and relative humidity. When text entry is required, press K successively to cycle through P  Q  R  S  7. Press L  to cycle through T  U  V  8, and press P to cycle through W  X  Y  Z  9. Press Q to start new or review old trending data. Press R at any time to initiate the zeroing procedure or, when keypad entry is required, to enter 0. Press S to access barometric pressure and battery readings. Press

A to exit specific screens (Setup, Memory, Help, More, etc.)

Press B or C to cycle through specific screen selections (Setup,

D

Memory, More, etc.) or to scroll through help text. Press  to access system settings (Gas Type, Correction Mode, Breath Detect Threshold, Zero Warning, Date, Time, and version numbers.)

 Q  

Enter Key E 

Press E to activate a menu selection.

 R  

Power Key      H 

Press and briefly hold this key to power on or power off the Analyzer.

9

 

VT MOBILE Getting Started Manual

Powering Up

Selecting the Operating Mode

1.  Press the Power key (H) to power on the Analyzer. The Analyzer displays the power up screen for several seconds.

Local Mode is the default setting upon powering up the Analyzer. In Local Mode, select functions by pressing keys on the front panel.

2.  The Analyzer then prompts you for the zeroing procedure. Disconnect flow and pressure sensors and place the Analyzer on a flat surface.

To change modes from Local to Remote, first connect the serial cable to both the PC and the miniature RS-232 serial port on the Analyzer. Launch VT for Windows software (version 2.01.00 or higher) to activate Remote Mode.

Warning Make sure pressure is set to zero before disconnecting the High Pressure Adapter. Exposure to high pressure could cause personal injury. 3.  Press G (Ok). The Analyzer now performs the zeroing procedure. After several seconds, the Tidal Volume screen appears and the Analyzer is ready for use. If you have pressed R to initiate the zero procedure, the Analyzer returns to the previous screen displayed. Note If the Analyzer encounters a power problem (such as a backwards battery), thermal timeout devices interrupt normal operation. Repair the problem, wait several seconds, and resume normal operation.

10

If VT for Windows has remote control, the following appears on the Analyzer display screen: No Graphics Available, While Communications Are Active Normal local key presses have no effect. Press G  (Cancel) to regain local control.

Printing Print data from the Analyzer using a PC running VT for Windows. This software also allows you to view all 16 ventilator parameters on one screen and manipulate and graph data.

 

Gas Flow Analyzer Setting Up  

 

Using the Keys  

Setting Up

Press each key firmly; the Analyzer responds to a recognized key press with a beep. Generally, you can exit one function by selecting another function. Press the B  and C navigation keys to cycle through multiple functions accessed from one key. Relevant functions for the two softkeys (F and G) are identified in the display immediately above these keys. When text entry is necessary, quickly press a key to cycle through the characters it accesses. Pause to accept the present character and move to the next entry. Think of text entry as text messaging, as you would encounter on a cell phone. Note If the Zero warning screen appears at any time, follow on-screen directions and then press G; the interrupted function will continue automatically after the zeroing procedure.

Warning Make sure pressure is set to zero before disconnecting the High Pressure Adapter. Exposure to high pressure could cause personal injury.

D

Press  to access Analyzer settings. (Press G to return to the measurement screen.)

Selecting the Gas Type Ensure that the gas or gas mixture you will be using is selected, as the gas density will be different for each gas type and mixture. Select the gas type by pressing

D  E  E  

 E. Available selections are: Air, O2, Heliox, CO2, N2, N2O, N2O/O2 (N2O balance O2), He/O2 (He balance O2), N2/O2 (N2 balance O2), and User. A ‘User’ gas can only be defined with the VT for Windows software.

B or C

Selecting the Correction Mode Ensure that the correction mode setting matches the one used by the ventilator or anesthesia machine manufacturer for their display of flow and volume measurements. If the correction mode is unknown, select “ATP” (Ambient Temperature and Pressure). The Analyzer can operate with a correction mode of ATP, STPD21, BTPS, or STPD0. Select the mode by pressing    E  C (to ‘Corr Mode’)  E  C (to select mode)  E.

D

11

 

VT MOBILE Getting Started Manual

Setting the Breath Detect Threshold

Setting Zero Warn ON or OFF

The default setting of 2.00 lpm is usually appropriate for the ventilators and anesthesia machines being tested. This setting tells the Analyzer how to divide the delivered flow into breaths. If necessary, adjust the Breath Detect Threshold up or down until the breath rate reported on the Analyzer Timing display matches the ventilator breath rate.

The Analyzer Zero Warn is set to ON at the factory to remind you to zero out any offset in the Flow measurements. The Zero Warn screen reminds you at power on, after the first five minutes, and then after each 30-minute period. After the power-on zero warning, you can choose to Zero or Cancel when the reminder appears; either action returns the Analyzer to the same function.

Set the threshold by pressing

D  E  C (to ‘BD

Thresh’)  E  C or B (to change threshold in increments of 0.25)  E. You can also use keypad entry to directly enter a new value prior to the last E press.

Warning Setting Zero Warn to OFF may introduce offset into the Flow and Volume measurements and cause errors in the assessment of those measurements against the medical device under test specification. Fluke Biomedical strongly recommends that you leave Zero Warn ON. Turn this warning on or off by pressing  E   C  (to ‘Zero Warn’  E  C (to select ON or D  OFF)  E.

12

 

Gas Flow Analyzer Making a Measurement More Accurate  

 

Setting the Date and Time

D







Press    CUsing access the date  E  E setting screen. the text entry key to keys, s, enter the new date as mm/dd/yy or dd/mm/yy. Then press E to accept the change. At this point, press C  E to access the time setting screen. Then use the text entry keys and the softkeys to enter the time, followed by a press of E.

Checking Version and Serial Numbers

D

Press   C  C  E to check the version and serial numbers.

Accessing Help Use the I key to access context-sensitive help. If additional text is available off screen, a vertical bar appears on the right side of the help screen. Use B or C to scroll through the complete text. Press G to exit help.

Making a Measurement More Accurate Warm-up and Zeroing

The Analyzer requires a warm-up period. A five-minute warm-up followed by a zero and immediate measurement is adequate for most applications. A 40-minute warm-up ensures maximum accuracy and stability. The Zero Warn feature reminds you to zero the transducers at predefined intervals. Fluke Biomedical strongly recommends that you leave Zero Warn ON and, after removing pressure and flow sources, zero the transducers whenever the Zero Warn message appears. The Analyzer requires you to zero immediately after power on. If Zero Warn is ON, the Analyzer prompts you for an optional zero after the first five fiv e minutes and then after each subsequent 30-minute interval. To zero at the prompt, place the Analyzer on a flat surface with sensors disconnected at the Analyzer. Then press G. Press R at any time to initiate an unprompted zero. Generally, it is appropriate to zero before any pressure or flow measurement.

 

13

 

VT MOBILE Getting Started Manual

Verifying Oxygen Sensor Calibration

Calibrating the Oxygen Sensor

Verify the oxygen sensor calibration at the beginning of any day during which you expect to measure oxygen concentrations. Use the following verification procedure:

Calibrating the Oxygen Sensor improves pressure compensation for barometric and airway pressure changes.

1.  Connect the Oxygen Sensor as shown in Figure 9.

1.  Press P to display the Oxygen measurement screen.

2.  Introduce a 10 lpm or greater flow of 100% oxygen through the Oxygen Sensor “T”.

2.  Press G to access the Oxygen calibration screen.

3.  Press P to access the O2 display.

3.  Connect the High-Flow Sensor and then apply dry air (20.9 % oxygen) at 10 lpm to either side of the

4.  Ensure that the O2 screen oxygen concentration is 100 % ± 2 % of full scale. If the concentration is less than 98 %, perform the oxygen sensor calibration as described below.

sensor. 4.  Press F twice to access the Calibration screen. Wait for the two-minute timer to count down.

Replace the oxygen sensor after one year (or longer if no replacement message appears during calibration.)

5.  Apply 100 % oxygen at 10 lpm.

Note The Oxygen Sensor is not calibrated at the factory.

14

6.  Press G twice and then press F once to access the Calibration screen. 7.  After the two-minute interval, the Oxygen measurement screen appears and the calibration is complete.

 

Gas Flow Analyzer Measuring Low Pressure  

 

Using the Temperature and Relative Humidity Sensor

Measuring Low Pressure

Use the optional Temperature and Relative Humidity Sensor to compensate for the conditions of the gas under test.

Measure low pressure in the range: -20 topsi. 120 cmH 2O. Never exceed an absolute maximum of 5

Checking the Barometric Pressure An internal sensor measures barometric pressure. The Analyzer displays pressure relative to barometric pressure (gauge pressure). Press S  E to check the barometric pressure reading. To set a different barometric pressure, you can press

F and then enter that value with the text entry keys. Note The Analyzer relies on ambient barometric pressure. Do not set for airport barometric pressure, which is corrected for altitude.

Refer to Figure while following th these ese steps: 1.  Press R and follow on-screen instructions. 2.  At the Analyzer, connect the Low-Pressure Adapter to the Flow/Low-Pressure Port. 3.  Press L in the OTHER MEASUREMENTS MEASUREMENTS or WAVEFORM SCREENS section. 4.  Verify that the screen displays Low Pressure (Plo) or LPress. If the High Pressure Adapter is also connected, you may need to press L a second time. 5.  Connect the Low-Pressure Adapter to the source. 6.  Apply pressure. 7.  Successively press G (Units) to select a pressure unit in the sequence: PSI  kPa  Bar  mBar   ATM  inH2O  InHg  cmH2O  mmHg. If the waveform is too small or too large, press F  (Rescale) to view the waveform within optimized limits.

15

 

VT MOBILE Getting Started Manual Figure 4 shows some characteristic low pressure screens. OTHER MEASUREMENTS

Low Pressure Adapter  L E  B I L  M O  V T

 W  L O S  F GA

SCREENS

 F 2

 F 1

 k  B a c

WAVEFORM

 E R  Y Z A L A N

 R  T E  E N

 

 r r y y  m o  m  M e

 u p  u  S  e t  3

 R S  E T E  F  G  A M  D E  I N  N  A R  2  M  T I M  R P  A T O  E  6    L L  C  I  R  B  U  N T  A  S  O  V E  1  R E S S  N  E  P  R E  M N  M E  S C  5  O L U  L _  ,  @  @  V  R M  V  / V O  O  W  O  9  V E F K L  U R E  F L O  W A 4  J K  S  T S  E S  E N  Y Z  2  P R  E M  W X  R H O  U R  8  %  I  G H  G  H  L O W  E A  E  A S  S  E  M  R  F  H E  U V  U R  O T  7  T  E S S  S  O N  I O  P R  R E  C T  R S  O L  U N  0  M O  F U  V  P Q  / V  A L  A  O W  E C I  R O  S  F L O  S P  Z E S O R  N  S E  D  E N  T R E S T  T

ede02f.eps

Figure 4. Low Pressure Screens

 

ede08f.eps

Figure 3. Measuring Low Pressure

16

 

Gas Flow Analyzer Measuring Low Flow  

 

Measuring Low Flow

Low Flow Sensor

Measure lowmaximum flow in theofrange: +/- 25 lpm. Never exceed an absolute 35 lpm. Refer to Figure Figure 5 while following these steps: 1.  Press R and follow on-screen instructions. 2.  At the Analyzer, connect the Low-Flow Sensor to the Flow/Low-Pressure Port. 3.  Press K (in OTHER MEASUREMENTS) or N  (in WAVEFORM SCREENS.) 4.  Connect the Low-Flow Sensor to the source. 5.  Apply flow. 6.  Successively press G (Units) to select a flow unit in the sequence: LPM  CFM  LPS  ml/min   ml/sec. If the waveform is too small or too large, press F  (Rescale) to view the waveform within optimized limits.

 L E  B I L  M O  V T

 W  L O S F GA

 R  Z E A L Y A N

 F 2

 F 1

 k  B a c c k

 R  T E  E N

 y y  m o r  M e

 u u p  S  e t  3

 S  T E R  M E  E F  N G  R A  D  M I N  P A  2  T I M  O R  6  L A T A B C  U R E  T I L  N  S  E  S  S  V  1  R E  E N  O  P  R E  M N  U M E  S C  L _  ,  @  @  V  M  5  V O L  / V O  O R  9  F L O  O W  W A V  V E  E F J J K  F K L L  S U R E  S  T  4  E S  E N  Y Z  2  P R  E M  W X  R H O  I  %  S U R  8  G H  O W  E A  R M  E  F L  H E  T U V  S U R  T  O  7  S  E S  O N  I O  P R  E  T  O R  N C  R S  O L  F U  0  M  P Q  / V  A L  A  W V  E C I  R O  S  F L O  S P  Z E S O R  N  E  S  D  E N  T R E S T  T

 

ede13f.eps

Figure 5. Measuring Low Flow

17

 

VT MOBILE Getting Started Manual Figure 6 shows some characteristic low flow screens.

Measuring High Pressure The Be Analyzer measure highsource pressure from -2before to 100 psi. certaincan of your possible pressure measuring high pressure. For example, normal bulkhead outlet pressure could be too high. Unregulated cylinder pressure could also be too high.

OTHER MEASUREMENTS

Refer to Figure Figure while following these steps: 1.  Press R and follow on-screen instructions. WAVEFORM

2.  At the Analyzer, connect the High-Pressure Adapter to the High-Pressure Port.

SCREENS

3.  Press L in the OTHER MEASUREMENTS MEASUREMENTS or WAVEFORM SCREENS section.

ede15f.eps

Figure 6. Low Flow Screens

4.  Verify that the screen displays High Pressure (Phi) or HPress. If the Low-Pressure Adapter is also connected, you may need to press L a second time. 5.  With the high pressure source set to zero output, connect the High-Pressure Adapter to the source. Note that various connection schemes are available. 6.  Apply pressure. 7.  Successively press G (Units) to select a pressure unit in the sequence: PSI  kPa  Bar  mBar   ATM  inH2O  InHg  cmH2O  mmHg.

18

 

Gas Flow Analyzer Measuring High Pressure  

 

 L E  B I L  M O  V T

S GA

 O W  F L O  F L

 R  Z E  L Y  L Y Z  NA A NA

 F 2

 F 1

 3  E R S  E T  E T E R  E F  I  N  D E  A M  D N G M  P A  P A R  2  T I  M  O R  A T  A T O  6  B C  U R E  T I L L  A B C  S U  E N T I  S S  1  V E N  N S N O  E  E E  E  P R E  M E  M  S C R 5  O L U _ ,    @@  M  S C  O L  V  W /  VV  F O L R  9  E  V E  V E F O  F L O  S  W A 4  J K K  S S U R  N T S  T  E  Y Z  2  E  Y Z  P R  E M  E M  W X  R H O  U R  8  I  %  G H  O W  E A S  M E A  F L  E  V  E R T U  H E R  T U V  S U R  O T  7  S  S  O N  I O  P R E  T I  T  R E  C  S  L  R  R S  F U  F U N  0  M O  P Q  /  VV O  L  A L   A  W  E C  E C I  R O  S  F L O  S P  Z E S O R  N  S E  D  E N T  T R  T E S

 k  c k  B a

 L E  B I L  M O  M  V T

 W  L O S F GA

 E R  Y Z A L A N

 F 2

 F 1

 c k  B a

 R  T E  E N

 R  T E  E N

 o r y y  M e m

  u p  t u  S e

  yy  m o r r  M e

 u p  u   S e t  3

 S  T E R  M E  E F  N G  R A  D  M I N  P A  2  T I M  R  O  A T  6  E  T I  LL  A B C  U R  N S  O  V E N  1  R E S S  P  R E E  M N  U M E  C  S _  ,   @@  M  5  V O L  V  V O L  O R  W /  9  E  V E F  L  F L O  W A 4  J K  S S U R  N T S Z  E  2  E  Y  R  P  E M  W X  R H O  R  U  8  %  I  A S  G H  O W  M E  F L  E R  U V  R E  O  O T  T H  H 7  T  R E S S U  I  OO N  N S  S  P  E  C T  O R  R S  O L  F U N  0  M  V  P Q  / V  W  I  AA L  C  E  O  F L O  S  S P  Z E R  O R  N S  S E  D  E N T  R  T  E S  T

High Pressure Adapter

ede11f.eps

Figure 7. Measuring High Pressure

19

 

VT MOBILE Getting Started Manual For waveform pressure readings, press F (Rescale) to optimize waveform viewing.

Warning

Refer to Figureand 9 when you are connecting the Analyzer to a ventilator test lung.

Always turn pressure off at the source prior to disconnecting either end of the HighPressure Adapter. Serious injury could otherwise result.

1.  Press R and follow on-screen instructions. 2.  At the Analyzer, connect the High-Flow Sensor to the Flow/Low-Pressure Port. 3.  Connect the Oxygen Sensor to the upper port on the right side of the Analyzer.

Figure 0-8 shows some characteristic high pressure screens.

4.  If available, connect the optional Temperature/RH Sensor to the lower port on the right side of the Analyzer.

OTHER MEASUREMENTS

5.  Using parts from the Accessory Kit and the connectors provided with the sensors, make connections between the ventilator and the ACCU LUNG as shown in Figure 9. Use the sequence: ventilator Y connector  High-Flow

WAVEFORM



Sensor (blue stripe towardthe ACCUSensor LUNG)    Temperature/RH Sensor  Oxygen ACCU LUNG. Vertically align all sensors.

SCREENS

ede04f.eps

Figure 8. High Pressure Screens

Checking Ventilator Parameters

6.  Set up the ventilator for a characteristic breath pattern. For example, you could set 10 BPM at 7.5 lpm. 7.  Set the ACCU LUNG for C20 compliance (both outer springs engaged) and Rp50 resistance (positioned as shown in Figure 9.)

20

 

Gas Flow Analyzer Checking Ventilator Parameters  

 

High Flow Sensor

To Ventilator

Oxygen Sensor

Temp./RH Sensor Se nsor

Fluke Biomedical Acculung

 

ede06f.eps

Figure 9. Checking Ventilator Parameters

21

 

VT MOBILE Getting Started Manual Table 5. Ventilator Parameters

8.  Apply power to all elements of the test setup. For the Analyzer, press H on, wait for the Zeroing screen, and then press G. The Analyzer is ready to use once the Tidal Volume screen appears. 9.  Press the access keys shown in Table 5 to display the various ventilator parameters. Once you have pressed the first key, you can continue pressing that key to view other parameters or press G to view all the parameters. As described in Table 5, the Analyzer calculates 16 breath parameters in Local Mode. Note that all 16 parameters and other information can be viewed on one screen in Remote mode when using the VT for Windows software. Figure 10 shows some characteristic ventilator parameter screens. Figure 11 shows additional oxygen, temperature, relative humidity, and barometric pressure parameter screens. Figure 12 shows additional airway pressure measurement screens accessible during the ventilator check.

Keys

K

Item

Tidal Volume

MV

Minute Volume

PIF

Peak Inspiratory Flow

PEF

Peak Expiratory Flow

PIP

Peak Inspiratory Pressure

PEEP

Positive End-Expiratory Pressure

G

MAP IPP

Mean Airway Pressure Inspiratory Pause Pressure

M

Rate

Breath Rate

Ti

Inspiratory Time

Te

Expiratory Time

I:E

Inspiratory to Expiratory Time Ratio

O2

Oxygen Percentage

 P

Temp

Temperature (gas under test)

 P

RH

Relative Humidity (gas under test)

G L

G P

S E Baro

22

Name

VT

Barometric Pressure

 

Gas Flow Analyzer Checking Ventilator Parameters  

 

All

All

All

ede07f.eps

Figure 10. Ventilator Parameter Screens

23

 

VT MOBILE Getting Started Manual

OTHER MEASUREMENTS

WAVEFORM SCREENS

 

ede05f.eps

Figure 12. Measuring Airway Pressure ede12f.eps

Figure 11. Additional Parameter Screens

24

 

Gas Flow Analyzer Battery  

 

Service Have a qualified technician calibrate the Analyzer once a year. We recommend that you send the Analyzer to a Fluke service center for calibration or service.

1

2

Battery The Analyzer uses a 9-volt, non-rechargeable alkaline battery. Refer to Figure 13 for battery replacement instructions. If battery voltage drops too low, the message “Warning Your Battery Is Low” appears on the screen. Press G  (Ok) to resume viewing the previous display. The Analyzer will now occasionally beep and eventually display the warning screen again, allowing you to repeat the process. However, to maintain accurate measurements, replace the battery as soon as possible poss ible after the first warning you notice. Press S  C  E to check the battery level. 

 

ede09f.eps

Figure 13. Changing the Battery

25

 

VT MOBILE Getting Started Manual

Specifications General Specifications Size: Weight: Temperature:

Maximum Humidity, Operating: Maximum Humidity, Storage: Barometric:

26

8 L x 1.5 H x 4 W inches (20 L x 3.8 H x 10 W cm) 1 lb (0.45 kg)

Battery Power Supply Voltage:

9 VDC

Operating: 10 to 40 °C (50 to 104 °F) Storage: -25 to 50 °C (-13 to 122 °F)

Power Consumption:

< 70 mA

Battery Life:

> 7 hours

80 % relative humidity up to 31 °C (88 °F), decreasing linearly to 50 % relative humidity at 40 °C (104 °F). 95 % 7 to 18 psia, operating; -1000 to 10000 ft (787.9 – 522.7 mmHg), storage 

 

External Power Supply  Output Voltage:

12 – 15 V

Output Current:

1.2 A

 

Gas Flow Analyzer Specifications  

 

Measurement Specifications Low-Pressure Port

High-Pressure Port

Maximum Applied Pressure:

5 psi

Operating Pressure (Differential):

-20 to 120 cmH2O

Operating Pressure (Common Mode): Span Accuracy:

Maximum Applied Pressure:

125 psi

Operating Pressure:

- 2 psi to 100 psi

Span Accuracy:

± 2 % of reading or ± 0.2 psig, whichever is greater

NA ± 2 % of reading or 1.5 mmHg, whichever is greater

Frequency Response:

> 10 Hz

Resolution:

0.1 mmHg

Sample Rate: Fittings:

100 Hz Flow Connector with 2 tubes "T" connected to a single fitting

Frequency Response:

> 10 Hz

Resolution:

0.1 psi

Sample Rate:

100 Hz

Fittings:

Single port, Luer lock, stainless steel

Note: No fluid may be applied to port.

Note: No fluid may be applied to port.

27

 

VT MOBILE Getting Started Manual

High-Flow Port  

Airway Pressure Maximum Pressure: Applied

5 psi

Operating Pressure:

- 20 cmH2O to 120 cmH2O

Span Accuracy:

± 2 % of reading or ± 2.0 cmH2O, whichever is greater

Frequency Response: Resolution:

0.1 cmH2O

Sample Rate:

100 Hz

Fittings:

Internally connected to flow sensor pressure lines

> 25 Hz or t 10-90 < 40 ms

Maximum Flow Rate (absolute value): Operating Flow Range: Accuracy:

Floor for Absolute Accuracy: Resolution: Frequency Response: Sample Rate: Dynamic Resistance: Low-Flow Dropout: Breath-Detect Threshold: Volume Range: Tidal Volume Accuracy:

28

200 lpm ± 150 lpm ± 3% o off reading or ± 2 % of range, whichever is greater 25 lpm 0.01 lpm > 25 Hz or t 10-90 < 40 ms 100 Hz < 2 cmH2O @ 60 lpm 2.5 lpm 4 lpm > ± 60 l ± 3 % or reading or ± 20 ml, whichever is greater

 

Gas Flow Analyzer Specifications  

 

Oxygen Measurement

Maximum Flow Rate (absolute value): Operating Flow Range: Accuracy: Floor for Absolute Accuracy: Resolution: Freq. Response: Sample Rate: Dynamic Resistance: Low-Flow Dropout: Breath-Detect Threshold: Volume Range: Volume Accuracy:

35 lpm ± 25 lpm ± 3 % of reading or ± 1% of range, whichever is greater 3 lpm 0.01 lpm flow > 1 lpm > 25 Hz or t10-90 < 40 ms 100 Hz < 2.5 cmH2O @ 5 lpm 0.24 lpm 1 lpm (user selectable) ± 60 l ± 3 % of reading or ± 5 ml

Range: Accuracy: Resolution: Frequency Response: Sample Rate: Sensor Technology: Calibration:

0 to 100 % ± 2 % full-scale output 0.1 % O2  > 15 s (t10-90) 100 Hz Galvanic Fuel Cell  Allows user calibration calibration using air and 100 % O2 

Notes: • Automatic partial pressure compensation for barometric and airway pressure changes • Recommended interval for changing oxygen sensor is one year. However, sensor may last longer. During user calibration of the sensor, the Analyzer can detect if the sensor needs to be replaced.

29

 

VT MOBILE Getting Started Manual

Measurement Parameter Specifications  

Barometric Pressure Measurement 8 to 18 psia (400 to 900 mmHg) ± 2 % of reading 0.1 mmHg

Range: Accuracy: Resolution: Frequency Response: Sample Rate: Calibration:

Inspiratory and Expiratory Tidal Volume (VT)  

< 5 s (t10-90) N/A Not required; however, device allows user calibration of offset.

Expiratory Minute Volume (MV)   Resolution: Range: Accuracy:

Temperature and Relative Humidity Temperature

Relative Humidity

Resolution:

0.1 ° 

0.1 %

Range:

0 – 50 °C

10 to 95 %

Accuracy: Units:

± 1 °C °C, °F, °K

± 10 % RH %

30

0.1 ml > 10 l ±3%

Resolution: Range: Accuracy:

0.001 lpm 0 to 60 l ±3%

Breath Rate (BPM)   Resolution: Range:

0.1 bpm 2 to 150 bpm

Accuracy:

±1%

 

Gas Flow Analyzer Specifications  

 

Inspiratory, Expiratory Time Resolution: Range: Accuracy:

0.01 s 0.25 to 9.99 s ± 2 % or 0.1 s

Peak Inspiratory Pressure (PIP)

Mean Airway Pressure (MAP) Resolution: Range: Accuracy:

0.1 cmH2O ± 80 cmH2O ± 3 % or 1 cmH2O

Positive-End Expiratory Pressure (PEEP)

Resolution: Range:

0.1 cmH2O ± 120 cmH2O

Resolution: Range:

0.1 cmH2O

Accuracy:

± 3 % or 2 cmH 2O

Accuracy:

± 3 % or 1 cmH2O

Inspiratory Pause Pressure (IPP) Resolution: Range: Accuracy:

0.1 cmH2O ± 120 cmH2O ± 3 % or 2 cmH 2O

- 5 to 40 cmH2O

Peak Expiratory Flow (PEF) Resolution: Range: Accuracy:

0.01 lpm 0 to 150 lpm ± 3 % or 1 lpm

31  

VT MOBILE Getting Started Manual

Peak Inspiratory Flow (PIF) Resolution: Range: Accuracy:

0.01 lpm 0 to 150 lpm ± 3 % or 2 lpm

Display Screen 64 x 128 pixels, reflective LCD, blue on yellow

Operational Modes Standalone Controlled by VT for Windows PC Software (version 2.01.00 or higher)

Inspiratory Time (Ti) Resolution: Range:

0.01 s 0 to 60 s

Gas Types

Accuracy:

0.5 % or 0.02 s

O2 User

Air, O2, Heliox, CO2, N2, N2O, N2O bal O2, He bal O2, N2 bal

Serial Communications Specifications 4-pin miniature RS-232 serial port located on upper-left side of panel

Expiratory Time (Te) Resolution: Range: Accuracy:

0.01 s 0 to 90 s 0.5 % or 0.01 s

RS232 compatible with the VT for Windows software application (version 2.01.00 or higher.)

32  

Gas Flow Analyzer Symbols  

 

Symbols

Symbol

Symbol

Description



See Operators Manual.

P

Manufacturer’s declaration of product compliance with applicable EU directives

)

Battery Eliminator input Do not mix with solid waste stream. Dispose of using a qualified recycler or hazardous material handler.

~  6F22 006P 



Temperature and Relative Humidity Port Oxygen Sensor Port Battery Eliminator Port

12V DC F 

 

Pressure Port

CSA Listing mark



M 9V NEDA 1604A

f

Description

 

9-volt battery Flow Port

" '

Miniature RS232 Port

33  

VT MOBILE Getting Started Manual

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