Gold Standard Plus Model 2160 User Manual Issue 1

IMPORTANT NOTE Re: Fitting of the optional 6-s chart carrier

The Gold Standard Plus is fitted with a 12-s chart carrier as standard. This spirometer has been adapted with a 6-s chart carrier to accept charts Cat No 20200 6-s Vitalogram Charts. Hence the illustrations in this manual show the 12-s chart and not the 6-s chart as fitted. However all the same principles apply. Where possible, the text has been amended to suit the 6-s chart and the relevant accessories.

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Table Of Contents CHAPTER 1: INTRODUCING THE MANUAL Purpose of the Manual Contents of the Manual Conventions used in the Manual CHAPTER 2: INTRODUCING THE VITALOGRAPH GOLD STANDARD PLUS Description of the Vitalograph Gold Standard Plus Physical Features of the Vitalograph Gold Standard Plus Principles of Operation Using the Vitalograph Gold Standard Plus with Peripheral Devices Description of Buttons Description of Items on Screen Displays CHAPTER 3: INSTALLING THE VITALOGRAPH GOLD STANDARD PLUS Removing the Transit Clamp Connecting to a Power Source Inserting the Breathing Tube and Mouthpiece or Filter Adjusting the Chart Carrier Inserting the Vitalogram Chart Adjusting the Stylus Powering Up the Gold Standard Plus Configuring the Electronics Module Setting Up Save Setting Up Indices Selecting a Printer Defining Configuration Defining Smart About the Software CHAPTER 4: CALIBRATING THE VITALOGRAPH GOLD STANDARD PLUS Checking Accuracy Adjusting Calibration Accuracy Check and Maintenance Logs Your Unit's Accuracy Check History Log When to check accuracy? CHAPTER 5: ENTERING OR SELECTING SUBJECT INFORMATION Entering a New Subject Selecting an Existing Subject

5 5 5 5 6 6 6 6 7 7 7 7 8 8 9 9 10 11 11 12 12 12 14 14 15 16 17 17 19 20 20 20 22 22 23

CHAPTER 6: PERFORMING TESTS

24

Instructing the Subject Performing a VC Test Performing an FVC Test Performing an MVV Test Performing an Inspiratory Test Quality Messages Test Acceptance

24 24 25 27 28 28 29

CHAPTER 7: INTERPRETING TEST RESULTS Background Features of the Chart Features of the Flow Rate Calculator Interpreting Results VC FVC FEVt FEV% FMEF

30 30 30 32 33 33 34 35 36 37 3

FMFT FEF FEFx CHAPTER 8: PERFORMING POST TESTS Performing Post Tests

39 40 41 42 42

CHAPTER 9: VIEWING TEST RESULTS

44

Viewing the Current Test Viewing a Test from the Database Viewing Subject Data from the database

44 45 45

CHAPTER 10: PRINTING TEST RESULTS

46

Connecting to a Printer Serial Printer Parallel Printer Printing Results CHAPTER 11: DELETING SUBJECT INFORMATION AND/OR TEST RESULTS All Subjects One Subject

46 46 46 46 48 48 48

CHAPTER 12: USING SMART

50

CHAPTER 13: CLEANING THE VITALOGRAPH GOLD STANDARD PLUS

52

Cleaning and Disinfecting the Vitalograph Gold Standard Plus Disposable Breathing Tubes

52 53 53

CHAPTER 14: ORDERING CONSUMABLES AND ACCESSORIES

54

Consumables/Accessories PowerSafes:

54 54

APPENDIX A: TABLE OF CALIBRATION LIMITS

55

APPENDIX B: TROUBLE SHOOTING

56

APPENDIX C: TECHNICAL SPECIFICATIONS

60

Measuring system Operation Mechanical Storage Conditions

60 60 60 60

APPENDIX D: NORMAL VALUE REFERENCES

62

APPENDIX E: LIST OF REFERENCES

63

APPENDIX F: REGULATORY NOTICES

64

Explanation of Symbols CE Notice FDA Notice

64 64 64

CUSTOMER SERVICE

65

GUARANTEE

66

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CHAPTER 1: INTRODUCING THE MANUAL Purpose of the Manual The purpose of the Vitalograph Gold Standard Plus User Manual is to provide the detailed information you require to use the Vitalograph Gold Standard Plus spirometer. Technical information relating to the spirometer is contained within the Vitalograph Gold Standard /Gold Standard Plus Service Manual.

Contents of the Manual Part I: Getting Started (Chapters 1 to 3) contains preliminary information to introduce you to this manual and the Vitalograph Gold Standard Plus. Part II: Using the Vitalograph Gold Standard Plus (Chapters 4 to 12) describes how to calibrate the Vitalograph Gold Standard Plus and how to use it for testing. Part III: Maintenance (Chapters 13 to 14) describes the maintenance functions you need to perform periodically to the Vitalograph Gold Standard Plus. Part IV: Appendices (Appendices A-F) lists the limits used in calibration, provides the solutions to problems that may be encountered when using the Vitalograph Gold Standard Plus, lists basic technical information and provides details of references and regulatory notices.

Conventions used in the Manual Switch on the Vitalograph Gold Standard Plus unit: Helvetica font followed by the word 'switch', e.g. Power switch. Switch setting: switch with symbol as it appears on the unit in bold, e.g. →. Position on a Vitalogram chart: bold, e.g. Stylus Start. Setting for a button: upper case, e.g. CONTINUOUS.

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CHAPTER 2: INTRODUCING THE VITALOGRAPH GOLD STANDARD PLUS Description of the Vitalograph Gold Standard Plus The Vitalograph Gold Standard Plus is a dry wedge bellows volume displacement spirometer designed to provide a permanent hard copy record of lung function test results. The results can also be stored electronically and viewed, printed or down loaded to a personal computer at a later date. It's robust and reliable design makes it ideal for use in occupational health centres and other high usage environments.

Physical Features of the Vitalograph Gold Standard Plus

Figure 2: Front view of the Gold Standard Plus 1. Top Cover 2. Chart Clip 3. Stylus 4. Stylus arm

5. Stylus Start Point 6. Chart Carrier 7. Power Switch 8. Bacterial/Viral Filter

9. Breathing Tube Entry 10. Record Switch 11.Keypad/Display

The Vitalograph Gold Standard Plus’s operational features include: • database of subject information • performs VC and FVC pre- and post tests • test results are time and date stamped (printout only) • stores the results of at least 100 tests • audible incentive device available • printouts of test results available • Smart option can automate actions by bypassing the menus

Principles of Operation 6

The Vitalograph Gold Standard Plus measures expired lung volumes by means of a wedge-shaped bellows that inflates as air enters into it. The subject exhales into a breathing tube and as the bellows inflates, the stylus needle moves across a Vitalogram chart. The stylus needle traces either a straight line showing the amount of air exhaled (VC Test) or a curved line showing the amount of air exhaled with respect to time (FVC Test). The deflection of the stylus is linked to a potentiometer and the resulting voltage changes are sent to the electronics assembly in the top cover where the results are automatically calculated and displayed. (Note: The displayed results can be ignored at any time and the chart results can be interpreted. To do this, simply leave the display set at the main menu after powering up and follow the instructions that relate to chart testing only.)

Using the Vitalograph Gold Standard Plus with Peripheral Devices If you connect additional equipment (not produced by Vitalograph) to the serial interface port, it must conform to VDE0750 Part 1-1 regulations and to your EN specifications, e.g. EN60950 for data equipment, EN60601 for medical equipment. Non medical equipment must be kept outside the subject environment i.e. any area in which intentional or unintentional contact between the subject and parts of the system, or some other persons touching parts of the system, can occur. (Please contact your distributor if you have any queries.)

Description of Buttons Button

Name

Description

↵

ENTER

In a data field: selects the value displayed and moves the cursor to the next field In a menu:selects the item next to the cursor and moves the cursor to the next display.

↑

UP ARROW

Displays the next highest or an alternative value.

↓

DOWN ARROW

Displays the next lowest or an alternative value.

ESC

ESCAPE

Exits to the previous display.

DEL

DELETE

Deletes an entry or clears the last test if saving all results.

Description of Items on Screen Displays Item

Name

Description

>

Cursor

Marks a menu you wish to select (Note a menu appears in all upper case letters on the display)

<

Cursor

Marks a value you wish to select

DOWN ARROW

Indicates there are more items for selection on the next display

CHAPTER 3: INSTALLING THE VITALOGRAPH GOLD STANDARD PLUS 7

When you receive the Vitalograph Gold Standard Plus and remove it from its packaging, it is important that you follow the set up procedures described in this chapter before you commence using the unit. Follow the set up procedures in this sequence: 1.

Remove the transit clamp and rubber band from around the stylus.

2.

Connect to the power supply provided.

3.

Insert the breathing tube and either a disposable SafeTway or BVF type mouthpiece.

4.

Adjust the chart carrier.

5.

Insert the Vitalogram chart.

6.

Adjust the stylus.

7.

Enter the temperature.

8.

Configure the electronics module

Detailed instructions for performing these actions are described on the following pages. When the set up procedure is complete, you should check the acuracy accuracy (as detailed in Chapter 4) in accordance with international recommendations for lung function testing equipment.

Removing the Transit Clamp

Figure 3: The stylus head 1.

Remove the rubber band from around the stylus head and unscrew the stylus locking screw.

2.

Remove the stylus and lift out the transit clamp.

3.

Replace the stylus and tighten the stylus locking screw.

4.

Store the transit clamp so you can replace it if you need to transport the spirometer.

Connecting to a Power Source 1.

Connect the power jack on the power supply cable into the rear panel of the Vitalograph Gold Standard Plus.

2.

Plug the mains lead into the free end of the power supply and connect it to a suitable mains supply outlet.

3.

Only use the power supply provided with the Gold Standard Plus.

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Inserting the Breathing Tube and Mouthpiece or Filter

Figure 4: Inserting the breathing tube and filter 1.

Insert the flexible end of the breathing tube provided into the front of the Vitalograph Gold Standard Plus.

2.

Insert a SafeTway or BVF into the plastic adaptor at the other end of the tubing.

Note ** Vitalograph recommends the use of bacterial viral filters to provide maximum protection against the possibility of bellows contamination and subject cross infection during testing.

Adjusting the Chart Carrier It is important for the accuracy of test results that the chart carrier should move as soon as the subject starts to blow. If the thumbscrew controlling the chart carrier is set too low, the chart carrier will move without the subject blowing. If it is set too high, there may be a time delay before the chart carrier starts to move. The start of movement sensitivity can be adjusted by turning the chart travel thumbscrew under the back of the Vitalograph Gold Standard Plus.

Figure 5: The thumbscrew at the back of the Gold Standard Plus 1.

Press the Power switch to .

2.

If the chart carrier is not in the start position, i.e. as far to the left as it can go, press the Record switch to ←.

3.

Inflate the bellows fully (either by blowing into it or with the aid of a Precision 1-L syringe) and then allow it to deflate naturally by disconnecting the breathing tube.

4.

Press the Record switch to →.

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5.

Lift the Vitalograph Gold Standard Plus slightly and turn the thumbscrew in the direction marked CONTINUOUS until the chart carrier starts to move.

6.

Turn the thumbscrew in the opposite direction until the chart carrier stops. Continue turning the thumbscrew by one turn. This completes the chart carrier adjustment.

Should the chart carrier subsequently start before the stylus begins to move, it will be necessary to turn the thumbscrew a little further towards AUTO-START

Inserting the Vitalogram Chart

Figure 6: How to insert the chart 1.

Insert the Vitalogram chart with the zero line at the top. (i.e. upside down)

2.

Keeping the chart flat and its sides under the carrier sides, feed the chart upwards on the carrier. (If necessary, lift the stylus to allow the chart to pass underneath.)

3.

Push back the chart clip sufficiently to lift it from the carrier surface.

4.

Slide the chart under the clip until the chart rests against the top edge of the carrier. The chart is now inserted correctly.

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Adjusting the Stylus

Figure 7: The stylus head 1.

If the chart carrier is not in the start position, i.e. as far to the left as it can go, press the Record switch to ←.

2.

Place the stylus on the Stylus Start position marked on the chart. Release the stylus locking screw if you need to move the stylus forward or backward, in order to position it correctly on the chart.

3.

If you need to adjust the stylus pressure (trace not clear), release the lock ring and either screw the stylus clockwise to increase pressure or screw it counter-clockwise to reduce pressure. Tighten the lock ring when complete

Powering Up the Gold Standard Plus Turn on the Vitalograph Gold Standard Plus by pressing the power switch on the front to . A display like the following example appears on the LCD. Gold Standard Plus 20/05/1998 04:44 Acc. Check: 21/06/95 Memory: 90% used

The fields on this display have the following meanings. Acc. Check The date of the last accuracy check of the Vitalograph Gold Standard Plus. International standards recommend that you check accuracy daily. Memory: Indicates the percentage of memory already used. If the memory is nearly full, you should archive and then delete subject information and results. (See Chapters 10 & 11.) Pressing ESC at any time during this screen will allow you to continue. Alternatively, after a few seconds the Main Menu display appears on the unit. (if Smart mode is disabled) > PATIENT TEST PRINT POST

DELETE SETUP VIEW CALIB

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Configuring the Electronics Module There are a number of settings that must be made using the keypad before you can use the electronic features of the Vitalograph Gold Standard Plus for the first time. You can change these settings at any time to suit your requirements. It is assumed that the Vitalograph Gold Standard Plus is turned on and the following main menu is displayed. > PATIENT TEST PRINT POST 1.

DELETE SETUP VIEW CALIB

Press the ▼ or ▲ button to move the cursor to the Setup menu. Select option > SAVE INDICES PRINTER

CONFIG SMART ABOUT

2.

Press the ↵ button.

3.

Continue with the steps in the following sections to make the required setting changes.

Setting Up Save This is used to define the criteria for saving tests. If ATS or ERS Best are selected then the best test in a session is saved. If ALL is selected then every test in a session is saved. Saving of results is then performed automatically after a testing sequence. 1.

Check that the cursor is next to the Save option and press the ↵ button. Save Setup ATS BEST ERS BEST ALL

<

2.

Press the ▼ or ▲ button to move the cursor to the type of save you require.

3.

Press the ↵ button to make the selection.

ATS Criteria: highest FVC, highest FEV1. All other parameters are calculated from the curve with the highest FVC+FEV1 sum. ERS Criteria: highest FVC, highest FEV1. All other parameters are calculated from the curve with the highest FVC.

Setting Up Indices This is used to define the indices for which results will be displayed or printed. 1.

Press the ▼ button to move the cursor to the Indices option and press the ↵ button. Select Indices VC FVC FEV.5

<

12

2.

When selected, an index is preceded by an *. Pressing enter again, will de-select it by removing the *.

3.

Press the ▼ button to move down through the list of indices and use the ↵ button to select or de-select the required indices.

The following list supplies definitions of the indices.

Indices

Definition

FVC Test FVC

Forced vital capacity (litres)

FEV .5

Forced expiratory volume after 0.5 seconds (litres)

FEV .5/FVC%

Percentage FEV 0.5 of FVC (%)

FEV .75

Forced expiratory volume after 0.75 seconds (litres)

FEV .75/FVC%

Percentage FEV 0.75 of FVC (%)

FEV 1

Forced expiratory volume after 1 second (litres)

FEV 1/VC%

Percentage FEV 1 of VC (%)

FEV 1%

Percentage FEV 1 of FVC (%)

FEV3

Forced expiratory volume after 3 seconds (litres)

FEV 3/FVC%

Percentage FEV 3 of FVC (%)

FEF 25-75%

Maximal mid expiratory flow: the mean FEF in the time interval between 25% and 75% of the FVC (litres/sec)

FEF 25-75/FVC%

Percentage FEF 25-75 of FVC (%)

FEF 75-85%

Forced late expiratory flow: the mean FEF in the time interval between 75% and 85% of the FVC (litres/sec)

FEF .2-1.2

Mean forced expiratory flow in the time interval between 0.2 and 1.2 seconds of the test time (litres/sec)

FEF 25%

Forced expiratory flow at 25% of the FVC (litres/sec)

FEF 50%

Forced expiratory flow at 50% of the FVC (litres/sec)

FEF 75%

Forced expiratory flow at 75% of the FVC (litres/sec)

FMFT

Forced mid-expiratory flow time (sec)

FET

Forced expiratory time (secs)

MVV Ind

Maximum voluntary ventilation indirectly calculated from the FEV (litres/min)

FIVC

Forced inspiratory vital capacity (litres)

FIVC/FVC%

Percentage FIVC of FVC (%)

FIF 25%

Forced inspiratory flow at 25% of the FVC (litres/sec)

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FIF 50%

Forced inspiratory flow at 50% of the FVC (litres/sec)

FIF 75%

Forced inspiratory flow at 75% of the FVC (litres/sec)

FIF 50/FEF 50%

Percentage FIF 50% of FEF 50% (%)

VC Test VC

Vital capacity (litres)

Selecting a Printer 1.

Press the ▼ button to move the cursor to the Printer option and press the ↵ button.

2.

Press the ▲ button, if required, to move to the printer you wish to select. Select Printer HEWLETT PACKARD CANON BJ SERIES EPSON

3.

Press the ↵ button to select the printer.

Defining Configuration 1.

Press the ▼ or ▲ button to move the cursor to the Config option.

2.

Press the ↵ button. Set Configuration > DATE * SOUND TIME * INTERP PREDICT

Date This is used to set up the current date. 1.

Press the ▼ or ▲ button to move the cursor to Date and press the ↵ button. Set the Date Year: 1995 < Month: 01 Day: 01

2.

Press the ▲ or ▼ button to set each field and press the ↵ button.

Time This is used to set up the current time. 1.

Press the ▼ or ▲ button to move the cursor to Time and press the ↵ button. Set the Time Hour: 12 < Minute: 01 Second: 01 14

2.

Press the ▲ or ▼ button to set each field and press the ↵ button.

Interpretation If this option is selected, a short message will appear at the end of the printout with a suggested diagnosis of the subject 's pulmonary function based on the test results. 1.

Press the ▼ or ▲ button to move the cursor to Interp.

2.

Press the ↵ button to deselect Interp if there is an asterisk (*) adjacent to it.

3.

Alternatively, if there is no asterisk adjacent to it, you can press the ↵ button to select it.

Sound This is used to turn off or turn on a tone which sounds with key presses and also acts as an incentive while a test is being performed. 1.

Press the ▼ button to move the cursor to Sound.

2.

Press the ↵ button to deselect Sound if there is an asterisk (*) adjacent to it.

3.

Alternatively, if there is no asterisk adjacent to it, you can press the ↵ button to select it.

Predicted values This is used to enable or disable the availability of predicted values with test results. If disabled, then subject demographics is not required to be entered before testing. The Race Correction factor is also setup within this screen. 1.

Press the ▼ button to move the cursor to Predict.

2.

Press the ↵ button to deselect Enter Demographics if there is an asterisk (*) adjacent to it. Set Predicted Values >* Enter Demographics Race Correction

3.

Alternatively, if there is no asterisk adjacent to it, you can press the ↵ button to select it.

4.

Press the ▼ to move the cursor to Race Correction.

5.

Press the ↵ button and the following screen is displayed. Set ‘Other’ Race Correction Factor Factor : 100% < Press ↵ to Continue

If you wish to offset the predicted values for the ‘Other’ race option, use the ▼ or ▲ button to set Factor field. An offset of between 50 % and 150 % can be set.

Defining Smart This is used to define the functions you wish Smart to perform automatically. Smart is disabled by factory default. 1.

Press the ▼ or ▲ button to move the cursor to Smart and press the ↵ button. Set Smart Features > Off TESTS POST *PRINT

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2.

Press the ↵ button to select or deselect Smart mode.

3.

Press the ▼ button to move the cursor to Tests to select the tests to be performed in Smart mode. Set Smart Tests > VC *FVC

4.

Press the ↵ button to select a test. An asterisk is displayed to show it has been selected. At least one test must be selected. Press the ESC button when you have finished making selections.

5.

Press the ▼ button to move the cursor to Print if you wish test results to be printed. Press the ↵ button and an asterisk is displayed to show it has been selected.

6.

Press the ▼ or ▲ button to move the cursor to Post if you wish post tests to be run. Press the ↵ button and an asterisk is displayed to show it has been selected.

About the Software This is used to obtain information about the software. This information should be used if any queries are made to Vitalograph or a service agent.

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CHAPTER 4: CALIBRATING THE VITALOGRAPH GOLD STANDARD PLUS The Vitalograph Gold Standard Plus should be calibrated at room temperature prior to performing tests. In accordance with the international standards governing spirometry, it is recommended that you check accuracy regularly. If the temperature of your testing environment remains stable (within ±4°C) it should not be necessary to adjust the calibration after the initial set-up. This user manual can be used to maintain a record of the Gold Standard Plus's accuracy history log (see the Accuracy Check and Maintenance Log section later in this chapter for further details). You will need a Vitalograph 1-Litre Precision Syringe (Cat. No. 20408) to enable you to check the accuracy of the Vitalograph Gold Standard Plus.

Checking Accuracy 1.

Ensure that the Vitalograph Gold Standard Plus and the syringe are at the same temperature (±2°C).

2.

Attach the Vitalograph 1-Litre Precision Syringe to the breathing tube.

Figure 8: The 1 litre syringe connected to the Gold Standard Plus 3.

Insert a chart in the chart carrier. (See the Inserting the Vitalogram Chart section of Chapter 3 if you require assistance.)

4.

Set the stylus on the Stylus Start line at the base of the centre scale. (See the Adjusting the Stylus section of Chapter 3 if you require assistance.)

5.

Switch the chart carrier switch to the stop position, i.e. the centre position.

6.

Turn on the Vitalograph Gold Standard Plus and the following main menu will be displayed:

7.

Press the ▲ or ▼ button to move the cursor to the Calib menu. > PATIENT TEST PRINT POST

8.

DELETE SETUP VIEW CALIB

Enter the ambient temperature. Set Ambient Temp. Temperature : 23 ° C < Press ↵ to Continue NOTE : This screen is only displayed after power up. 17

9.

Press the ↵ button. Last calibration update: 12/10/94 ↵=Continue ESC=Exit

10.

Press the ↵ button. Set Stylus to Stylus Start Line Press ↵ to Continue

11.

Press the ↵ button. Inject 1 Litre into bellows

12.

Inject a steady flow of air into the Vitalograph Gold Standard Plus making sure that the syringe piston travels fully to the end stop

13.

Mark the stylus position on the chart by gently tapping on the side of the stylus head. The LCD is updated to show the following information; Cycles 1 of 7 Ref : 1.00 Meas : 0.99 Repeat Pumping ESC to restart

14.

Repeat steps 12 to 13 to check the accuracy and linearity litre by litre, up to the seven litre position. Note: make sure you wait for at least half a second after filling the syringe to allow the volume to settle before pumping it into the Gold Standard Plus.

15.

The display in step 13 is updated to show the new volume recorded plus the volume recorded for the previous stroke.

16.

When you have completed the 7 strokes, the screen will prompt you to 'Please Wait' and the following screen will appear after a few seconds. Process Completed Do you wish to autocorrect? ↵=Yes ESC=No

17.

Press the ↵ button if you wish to update the calibration. (Note: This should be done if any of the measured values differed from the reference values by more than 3%). If not, press the ESC button. Print Calibration Report? ↵=Yes

18.

ESC=No

Press the ↵ button if you wish to print a Calibration Report - ensure printer is attached.

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Recheck accuracy? ↵=Yes

ESC=No

19.

Press the ESC button to exit from the Accuracy Check procedure or press the ↵ button to start the process again.

20.

If the stylus marks on the centre scale of the chart fall outside the shaded areas, you should adjust the calibration of the bellows as described in the next section.

Note ** The calibration of the electronics can be altered independently of the bellows calibration. The converse is NOT true. To ensure that your chart results agree with the electronic results, it is strongly recommended that the bellows is calibrated (as outlined in the following section) prior to changing the calibration of the electronics.

Adjusting Calibration 1.

Remove the top cover of the Vitalograph Gold Standard Plus by loosening the three thumbscrews at the back of the unit. Tilt it forward slightly while lifting it up. Note: care should be taken not to place excessive strain on the two cables that are connected to the top cover.

2.

Remove the cables from the cable tidy clips if necessary and set the top cover down beside the Gold Standard Plus.

3.

Loosen the two clamping screws and open the Velcro fasteners.

4.

If the unit is over reading slide the bellows plate (by use of the adjustment handles) towards the rear of the unit. Alternatively, if the unit is under reading slide the bellows plate towards the front of the unit.

5.

Tighten the clamping screws and close the Velcro fasteners.

Figure 9: The bellows assembly 6.

Re-check the accuracy on the chart to ensure the bellows setting is correct. If it is not, repeat steps 3 to 6 until the required accuracy is achieved.

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7.

Replace the top cover ensuring that the two cables are re-inserted to the cable tidies and that they are not in the path of the bellows travel.

8.

Recheck the accuracy of the electronics module and adjust if necessary.

Accuracy Check and Maintenance Logs Your Unit's Accuracy Check History Log Ensure that your spirometer and 1-L Precision Syringe are both at ambient temperature. Do not adjust calibration unless it falls outside the limits for the reference volume used. Before adjusting calibration re-check accuracy and look for fault in equipment or procedure. If calibration is adjusted, do an accuracy recheck and note findings in the remark's column. Photocopy the following page as required for further records of your unit's accurate history.

Date

Temperature

Check

Initials

Remarks

When to check accuracy? 1.

In accordance with ATS Standardisation of Spirometry 1994 (daily)

2.

In accordance with National or you your own establishment procedures.

3.

After annual planned preventive maintenance.

4.

After cleaning or disassembling spirometer for any reason.

5.

After adjusting calibration.

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