Page 1
Cosmed does not assume the liability for interpretation mistakes of this documentation or for casual or
consequential damages in connection with the provision, representation or use of this documentation.
No parts of this manual may be reproduced or transmitted in any form without the express permission of
COSMED Srl.
COSMED Software can be installed only in one device.
Excel is a registered trademark of Microsoft Corporation.
DBIII is a registered trademark of Bordland International Inc.
Lotus 123 is a registered trademark of Lotus Development Corporation .
K4 b2 User manual, XII Edition
01/2005
Copyright © 1998 COSMED
Copyright © 2003 COSMED
COSMED Srl - Italy
http://www.cosmed.it
Part N. C01508-02-91
Page 2
2 - K4 b2 User Manual
Table of contents
Getting started 13
Important notices ........................................................................... 14
Intended use..............................................................................14
Warnings...................................................................................14
Contraindication ............................................................................. 16
Contraindications for the Spirometer tests................................16
Absolute contraindications.............................................16
Relative contraindications..............................................16
Contraindications for Bronchial provocation tests ...................16
Absolute contraindications.............................................16
Relative contraindications..............................................16
Contraindications for Exercise testing......................................16
Environmental condition of use...................................................... 17
Safety and conformity..................................................................... 18
Safety..............................................................................18
EMC...............................................................................18
Telemetry .......................................................................18
Quality Assurance ..........................................................18
Medical Device Directive (CE mark).............................18
FCC (only USA version)................................................18
Keynotes ......................................................................................... 19
Typographic keynotes...............................................................19
Graphic keynotes......................................................................19
System overview ............................................................................. 20
Portable Unit (PU)....................................................................20
Telemetry Data Transmission, Receiver Unit (RU) .................20
Battery Charger Unit (CU) .......................................................20
Flowmeter.................................................................................21
Gas analysers............................................................................21
PC Software..............................................................................21
Before starting................................................................................ 22
Checking the packing contents.................................................22
K4 b2 standard packaging...............................................22
Warranty registration..................................................................... 23
Register the product via software...................................23
How to contact COSMED..............................................23
Complain, feedback and suggestions .............................23
Options/Accessories ....................................................................... 24
Accessories...............................................................................24
Options......................................................................................24
Telemetry data transmission...........................................24
Spirometry Kit................................................................24
Page 3
Index - 3
PC configuration required...............................................................25
Technical features ...........................................................................26
Portable Unit ..................................................................26
Receiver Unit .................................................................26
Battery charger Unit.......................................................26
Flowmeter ......................................................................26
Oxygen Sensor (O2) .......................................................26
Carbon Dioxide Sensor (CO2)........................................26
Humidity absorber..........................................................26
Power Supply.................................................................26
Environmental Sensors...................................................26
Measurements 27
Pulmonary function tests and measured parameters ....................28
Breath by Breath exercise testing.............................................28
Indirect Calorimetry .................................................................28
Lactate Threshold (V-Slope)....................................................28
O2 Kinetics...............................................................................29
Spirometry Tests (option).........................................................29
FVC - Forced Vital Capacity .........................................29
VC/IVC - Slow Vital Capacity and Ventilatory pattern.29
MVV - Maximum Voluntary Ventilation......................30
Bronchoprovocation Response.......................................30
Installation 31
Installation sequence......................................................................32
Battery Charger Unit ................................................................32
Check voltage.................................................................32
Turn the Unit on.............................................................32
Charge the batteries........................................................32
Battery low.....................................................................33
Portable Unit.............................................................................33
Warm up.........................................................................34
Warming-up the unit by main power .............................34
Turning on/off the portable unit.....................................34
Connect the rechargeable battery...................................34
Receiver Unit............................................................................35
Turning on/off the receiver unit.....................................35
Receiver unit power supply............................................35
Calibration Gas Cylinder..........................................................35
Connecting the K4 b
2
to the patient................................................36
Assemble the mask and the flowmeter.....................................36
Using the "Ultimate Seal".........................................................36
Apply the seal to the mask .............................................37
To remove seal on mask.................................................37
Assembling the flowmeter for spirometry tests........................37
Page 4
4 - K4 b2 User Manual
Fixing the K4 b2 to the patient..................................................38
Connecting the K4 b
2
to the PC....................................................... 39
Connect the Portable Unit to the PC.........................................39
Connect the Receiver Unit to the PC........................................39
Software installation ...................................................................... 40
Installing the software...............................................................40
Run the software.......................................................................40
PC port configuration ...............................................................40
Software main features .................................................................. 41
Display......................................................................................41
Tool bar.....................................................................................41
Show/hide the toolbar.....................................................41
Dialog windows........................................................................41
Use of the keyboard........................................................41
Use of the mouse............................................................41
Scroll bars.................................................................................41
On line help ..............................................................................41
Software version.......................................................................41
Calibration 43
Gas calibration procedures............................................................ 44
Running the Calibration program.............................................44
Log file .....................................................................................44
Setting reference values............................................................44
Set the reference values using the PC software..............44
Set the reference values using the Portable Unit............45
Room air calibration.................................................................45
Room air calibration using the PC software...................45
Room air calibration using the Portable Unit.................45
Reference gas calibration..........................................................45
The calibration unit ........................................................46
Reference gas calibration using the PC software ...........46
Reference gas calibration using the Portable Unit..........46
Gas delay calibration ................................................................47
Delay calibration using the PC software........................47
Delay calibration using the Portable Unit ......................47
Print the calibration report........................................................48
Edit the calibration factors........................................................48
Turbine calibration......................................................................... 49
Assembling the flowmeter for calibration.....................49
Calibrating the turbine..............................................................49
Turbine calibration using the PC software.....................49
Turbine calibration using the Portable Unit ...................50
Checking the system signals .......................................................... 51
The control panel......................................................................51
Using the control panel...................................................51
Page 5
Index - 5
Operating modes 53
K4 b
2
Operating modes ..................................................................54
Holter Data Recorder................................................................54
Telemetry Data Transmission (option).....................................54
Serial (Laboratory) Station.......................................................54
Portable Unit User Interface diagram............................................55
Holter Data Recorder Mode............................................................56
Operating sequence ..................................................................56
Warming-up the system.................................................56
Enter new patient............................................................56
Calibrate and start the test..............................................56
Stop the test....................................................................57
Transferring test to PC ...................................................57
Telemetry Data Transmission Mode ...............................................58
Operating sequence ..................................................................58
Warming-up the system.................................................58
Connect the receiver unit to the PC................................58
Enable transmission .......................................................58
Enter new patient............................................................58
Enable reception on PC..................................................59
Calibrate and start the test..............................................59
Stop the test....................................................................60
Transferring test to PC ...................................................60
Serial Mode.....................................................................................61
Operating sequence ..................................................................61
Warming-up the system.................................................61
Connect the Portable unit to the PC...............................61
Calibrate the system.......................................................61
Enter patient data............................................................61
Start the test....................................................................62
Stop the test....................................................................62
Database Management 63
Exercise testing patient's database.................................................64
Enter a new patient...................................................................64
Find a patient............................................................................64
Edit patient data........................................................................64
Delete a patient.........................................................................64
Uploading tests from the Portable Unit..........................................65
Archive maintenance ......................................................................66
Reorganise the archive .............................................................66
Delete the archive.....................................................................66
Delete a test ..............................................................................66
Backup and restore...................................................................66
Backup............................................................................66
Restore............................................................................66
Page 6
6 - K4 b2 User Manual
Spirometry patient's database ....................................................... 67
Patient Card....................................................................67
Visit Card .......................................................................67
Test Card........................................................................68
Import/export a Tests card........................................................68
Diagnosis Database...................................................................68
Spirometry program settings ......................................................... 69
Graphs ............................................................................69
Serial port.......................................................................69
Units of measurements...................................................69
Using extra fields............................................................69
Customise the fields .......................................................69
Exercise testing 71
Recommendations for the exercise testing .................................... 72
The evaluation of the cardiorespiratory function......................72
Precautions................................................................................72
Laboratory......................................................................72
Ending the test................................................................72
Preparing the patient.................................................................72
Before testing .................................................................72
Patient assent..................................................................73
Ending the test................................................................73
Real time test.................................................................................. 74
Start a test.......................................................................74
Abort the test without saving data..................................74
End the test saving data..................................................74
View data in real-time ..............................................................74
View graphs in real-time................................................74
Parameters to view....................................................................74
Manual protocol........................................................................75
Enter Load and Phase.....................................................75
Set the markers...............................................................75
Automatic protocol...................................................................75
Modify the load during the test ......................................75
Set the BPM alarm....................................................................75
Enter the BPM................................................................75
Data management ......................................................................... 76
Viewing data.............................................................................76
View data in table form..................................................76
Creating graphs.........................................................................76
View data in graph form.................................................76
Customise the graphs......................................................77
Switch from graph to data and vice versa ......................77
Viewing predicted values .........................................................78
View predicted values....................................................78
Page 7
Index - 7
Anaerobic (Lactate) Threshold detection.................................78
View the Lactate Threshold ...........................................78
Detect the Lactate Threshold..........................................78
Customise graphs for the LT viewing............................78
Fittings......................................................................................79
Fit a graph with a linear regression................................79
Fit a graph with a Mono-exponential regression............79
Calculate the "Mean Value"...........................................80
Oxygen Kinetic.........................................................................80
Run the O2 Kinetic function ..........................................80
Information about the Test .......................................................81
View the Information.....................................................81
Modify the information..................................................81
Summary...................................................................................81
View the summary .........................................................81
Print the data.............................................................................81
Print the current window................................................82
Print the report................................................................82
View the report.........................................................................82
Data Editing ....................................................................................83
Editing values and input numerical values.....................83
Data filtering ..................................................................83
Using the User fields......................................................84
Deleting steps.................................................................84
Advanced Editing...........................................................84
Restore the original test..................................................85
Overwrite the original test..............................................85
Customise the desktop..............................................................85
Customise the display colours........................................85
Smart edit..................................................................................85
Apply the graphical noise suppression...........................85
Apply the threshold noise suppression...........................85
Customise the parameters.........................................................86
Create a new parameter..................................................86
Create a new predicted parameter...................................86
Exporting data ..........................................................................87
Export a test....................................................................87
DDE with Excel .............................................................87
Creating Test Protocols ...................................................................88
Create a new protocol.....................................................88
Software configuration ...................................................................89
Data viewing.............................................................................89
Select the parameters to view.........................................89
Select the parameters to view during the test.................89
Sort the parameters.........................................................89
Steady State..............................................................................89
Page 8
8 - K4 b2 User Manual
Customise the Steady State detection criteria ................89
Printout reports .............................................................................. 90
Set up the printout ..........................................................90
Select parameters to be printed.......................................90
Customise the printout header........................................90
Electronic reports (*.pdf) ...............................................91
Print the current window ..........................................................91
Print the customised report.......................................................91
Events management during exercise testing ................................. 92
Flow Volume loops...................................................................92
Flow Volume loop during the test..................................92
O2, CO2 vs Time......................................................................92
O2, CO2 vs Time during the test....................................92
O2 Saturation (optional)...........................................................93
O2 Saturation during the test..........................................93
Spirogram .................................................................................93
Spirogram during the test ...............................................93
View the events after the test....................................................93
Raw data...................................................................................93
Save Raw data................................................................94
Resting Metabolic Rate Test 95
Metabolism ..................................................................................... 96
Total Metabolic Rate ................................................................96
Resting Metabolic Rate (RMR)................................................96
Importance to measure RMR....................................................96
Measure of the rest metabolic rate with indirect calorimetry...96
How to perform a RMR test .....................................................96
Recommendations .......................................................................... 97
Resting metabolic rate test using the face mask.......................97
Resting metabolic rate test using the canopy option.................97
Performing a test using the face mask .......................................... 98
Calibrations...............................................................................98
How to prepare a patient...........................................................98
Start the test ..............................................................................98
Viewing the test........................................................................99
How to modify the average interval .......................................100
Print ........................................................................................100
Performing a test using the canopy option.................................. 102
Calibrations.............................................................................102
How to prepare the canopy and the patient.............................102
Replacement of the power plug....................................102
Connecting the Canopy................................................102
How to prepare the patient ...........................................103
Performing the test..................................................................103
Viewing the test......................................................................104
Page 9
Index - 9
How to modify the average interval.......................................104
Print ........................................................................................104
Sub-maximal Exercise Testing 105
Introduction...................................................................................106
Pre-test screening....................................................................106
Sub-maximal exercise testing.......................................................107
Considerations with sub-maximal exercise testing.................107
Staffing...................................................................................108
Test termination......................................................................108
Considerations for accuracy..........................................................109
Performing the test .......................................................................110
An example of testing protocol ..............................................110
Spirometry 111
Setting spirometry options............................................................112
Spirometry..............................................................................112
Automatic Interpretation..............................................112
Quality control .............................................................112
Parameters manager................................................................113
Predicted values manager.......................................................113
Predicteds set................................................................113
Set the current predicted...............................................114
Formula definition........................................................114
Page set-up..............................................................................115
Spirometry tests ............................................................................116
Forced Vital Capacity (pre)............................................................117
Recommendations ..................................................................117
Perform a FVC (pre) test........................................................117
Test encouragement................................................................117
Perform the FVC test with the encouragement............118
Slow Vital Capacity........................................................................119
Perform a SVC test.................................................................119
Maximum Voluntary Ventilation...................................................120
Perform a MVV test ...............................................................120
Bronchial Provocation Test ...........................................................121
Bronchodilator test .................................................................121
Methacholine and Histamine Bronchial provocation Tests....121
Perform the test.......................................................................122
Bronchial Provocation protocols Database.............................122
Enter a new Bronchial provocation protocol in the
archive..........................................................................122
Viewing results..............................................................................123
Tests of the current patient...........................................123
Delete a test..................................................................123
Printing results..............................................................................124
Printing Reports......................................................................124
Page 10
10 - K4 b2 User Manual
Printing the active window.....................................................124
To print the active window...........................................124
Printing a series of reports......................................................124
Electronic reports (*.pdf)........................................................124
Export data..............................................................................125
Export a test..................................................................125
External devices 127
GPS ............................................................................................... 128
GPS initialisation....................................................................128
Initialize the GPS..........................................................128
Fixing the antenna to the subject.............................................128
Operating sequence.................................................................129
Run a test with GPS......................................................129
Monitoring GPS parameters in real time......................130
Pulse Oximeter (option)................................................................ 131
Operating Sequence................................................................131
System maintenance 133
System maintenance..................................................................... 134
Cleaning and disinfection.......................................................134
Preparing the disinfecting solution...............................134
Cleaning the turbine flowmeter....................................135
Precautions during the cleaning of the turbine.............135
Suggested disinfection solutions ..................................135
Masks cleaning and disinfection.............................................135
Disassembling the different parts of the mask .............135
Cleaning the mask........................................................135
Disinfecting the mask...................................................136
Permapure maintenance..........................................................136
Inspections..............................................................................136
Replace the fuses ....................................................................136
Appendix 139
Service - Warranty........................................................................ 140
Warranty and limitation of liability........................................140
Return goods policy for warranty or non warranty repair ......140
Repair Service Policy .............................................................141
Privacy Information ...................................................................... 142
Personal data treatment and purposes.....................................142
How your personal data are treated........................................142
The consent is optional, but…................................................142
Holder of the treatment...........................................................142
Customer rights.......................................................................142
Converting factors configuration.................................................. 143
Calculations references ................................................................ 144
Page 11
Index - 11
VO2 and VCO2........................................................................144
Anaerobic threshold (modified V-Slope)...............................144
O2 kinetics ..............................................................................144
ATS 94 recommendations .............................................................145
ATS recommendations...........................................................145
Predicted values............................................................................146
Automatic diagnosis (algorithm)............................................147
Quality Control Messages ......................................................147
References.....................................................................................149
Gas Exchange References............................................149
Indirect calorimetry......................................................149
Spirometry....................................................................149
Sub-maximal testing.....................................................149
Page 12
12 - K4 b2 User Manual
Page 13
Getting started
Page 14
14 - K4 b2 User Manual
Important notices
Intended use
The measurement of oxygen uptake during sport or real life activities is of great interest
for the development of training programs and the study of their effects on elite athletes
or for assessing the efficacy of a rehabilitation therapy.
A common method for assessing the effects of endurance training is the monitoring of
various respiratory parameters during submaximal exercise.
One difficulty to achieve this goal during sport that cannot be simulated in the
laboratory is to use a reliable and valid portable system to measure VO2 and VCO2 in a
field setting.
Such a portable apparatus may also be useful to determine the energy cost of many sport
and real life activities.
K4 b2 is an electrical medical device designed to perform pulmonary function tests. It is
to be used by physicians or by trained personnel on a physician responsibility.
Caution: Federal law restricts this device to sale by or on the order of a physician.
This equipment has been conceived with the aim of providing an auxiliary instrument
allowing:
• the formulation of lung pathology diagnosis;
• important studies concerning human physiology;
• the collection of important information in sport medicine.
No responsibility attaches COSMED Srl for any accident happened after a wrong use of
the device, such as:
• use by non qualified people;
• non respect of the device intended use;
• non respect of the hereunder reported precautions and instructions.
Warnings
The device, the programme algorithms and the presentation of measured data have been
developed according to the specifications of ATS (American Thoracic Society) and
ERS (European Respiratory Society). Other international references have been followed
when these were not available. All bibliography references are reported in Appendix.
The present handbook has been developed with respect of the European Medical Device
Directive requirements which sort K4 b2 within Class II a.
It is recommended to read carefully the following precautions before putting the device
into operation.
The precautions reported below are of fundamental importance to assure the safety of
all COSMED equipment users.
1. This user manual is to be considered as a part of the medical device and should
always be kept on hand.
2. Safety, measure accuracy and precision can be assured only:
• using the accessories described in the manual or given with the device. Actually
non recommended accessories can affect safety unfavourable. Before using non
recommended accessories it is necessary to get in touch with the manufacturer;
• ordinary equipment maintenance, inspections, disinfection and cleaning are
performed in the way and with the frequency described;
• any modification or fixing is carried out by qualified personnel;
• the environmental conditions and the electrical plants where the device operates
are in compliance with the specifications of the manual and the present regulations
concerning electrical plants. In particular grounding reliability and leakage current
suppression can only be assured when the device three – wire receptacle is
connected to a yellow - green return connected to earth ground. Attempting to
defeat the proper connection of the ground wire is dangerous for users and
equipment.
Page 15
Chapter 1 - Getting started - 15
3. Before powering the system, check the power cables and the plugs. Damaged
electrical parts must be replaced immediately by authorised personnel.
4. Large gas cylinders, which may be given by the manufacturer or purchased by the
customer, should be secured with cylinder safety chains or safety stands.
5. When removing the protective cap, inspect the cylinder valve for damaged threads,
dirt, oil or grease. Remove any dust or dirt with a clean cloth. If oil or grease is
present on the valve of a cylinder which contains oxygen, do not attempt to use.
Such combustible substances in contact with oxygen are explosive.
6. Be certain that the materials of the pressure regulators are chemically compatible
with the intended gas service before installation. Inspect the regulator for the proper
connection and note the ranges of the pressure gauges. Also examine the physical
condition of the regulator including threads and fittings. Remove any dust or dirt
from the regulator or cylinder valve with a clean cloth. Do not install a regulator on
a cylinder valve containing oxygen if grease or oil is present on either. Such
substances in contact with oxygen are explosive.
7. Cleaning residue, particulates, and other contaminates (including pieces of torn or
broken components) in the breathing circuit pose a safety risk to the patient during
testing procedures. Aspiration of contaminates can potentially be life-threatening.
Use disposable anti-bacterial filters or disinfect each part in contact with the patient
before each test.
8. You must follow all the cleaning procedures in System Maintenance, and you must
thoroughly inspect the components after cleaning and before each patient test.
9. This device is not suitable for use in presence of flammable anaesthetics. It is not
an AP nor an APG device (according to the EN 60 601-1 definitions).
10. Keep the device away from heat and flame source, flammable or inflammable
liquids or gases and explosive atmospheres.
11. In accordance with their intended use K4 b2 is not to be handled together with other
medical devices unless it is clearly declared by the manufacturer itself.
12. It is recommended to use a computer with electromagnetic compatibility CE
marking and with low radiation emission displays.
13. It is necessary to make the PC, connected to the K4 b2, compliant with EN 60601-1
by means of an isolation transformer.
14. Graphical symbols used in accordance to present specifications are described here
below:
Equipment type B (EN60601-1)
Equipment type BF (EN60601-1)
Danger: high temperature
OFF
ON
Protective earth ground
Alternating current
Page 16
16 - K4 b2 User Manual
Contraindication
The physical strain to execute the respiratory manoeuvre is contraindicated in case of
some symptoms or pathology. The following list is not complete and must be
considered as a piece of mere information.
Contraindications for the Spirometer tests
Absolute contraindications
For FVC, VC and MVV tests:
• Post-operating state from thoracic surgery
For FVC tests:
• Severe instability of the airways (such as a destructive bronchial emphysema)
• Bronchial non-specific marked hypersensitivity
• Serious problems for the gas exchange (total or partial respiratory insufficiency)
Relative contraindications
For FVC tests:
• spontaneous post-pneumothorax state
• arterial-venous aneurysm
• strong arterial hypertension
• pregnancy with complications at the 3rd month.
For MVV test:
• hyperventilation syndrome
Contraindications for Bronchial provocation tests
The bronchial provocation tests must be executed according to the doctor’s discretion.
There are not data that reveal specific contraindication for the bronchial provocation test
through inhalation.
The modern standard processes have been revealing secure in several clinical studies.
However it is recommendable to respect the following contraindications:
Absolute contraindications
• Serious bronchial obstruction (FEV1 in adults)
• Recent myocardium infarct
• Recent vascular-cerebral accident
• Known arterial aneurysm
• Incapacity for understanding the provocation test procedures and its implications.
Relative contraindications
• Bronchial obstruction caused by the respiratory manoeuvre.
• Moderate or serious bronchial obstruction. For ex. FEV1 < 1.51 in men and FEV1
in women < than 1.21.
• Recent infection in the superior air tracts
• During the asthmatic re-acuting
• Hypertension
• Pregnancy
• A pharmacology treatment epilepsy
Contraindications for Exercise testing
Read carefully the exercise testing chapter.
Page 17
Chapter 1 - Getting started - 17
Environmental condition of use
COSMED units have been conceived for operating in medically utilised rooms without
potential explosion hazards.
The units should not be installed in vicinity of x-ray equipment, motors or transformers
with high installed power rating since electric or magnetic interferences may falsify the
result of measurements or make them impossible. Due to this the vicinity of power lines
is to be avoided as well.
Cosmed equipment are not AP not APG devices (according to EN 60601-1): they are
not suitable for use in presence of flammable anaesthetic mixtures with air, oxygen or
nitrogen protoxide.
If not otherwise stated in the shipping documents, Cosmed equipment have been
conceived for operating under normal environmental temperatures and conditions [IEC
601-1(1988)/EN 60 601-1 (1990)].
• Temperature range 10°C (50°F) and 40°C (104°F).
• Relative humidity range 20% to 80%
• Atmospheric Pressure range 700 to 1060 mBar
• Avoid to use it in presence of noxious fumes or dusty environment and near heat
sources.
• Do not place near heat sources.
• Cardiopulmonary resuscitation emergency equipment accessible.
• Adequate floor space to assure access to the patient during exercise testing.
• Adequate ventilation in the room.
Page 18
18 - K4 b2 User Manual
Safety and conformity
Safety
IEC 601-1 (1988) /EN 60 601-1 (1990);
Find reported below the complete classification of the device:
• Class I type B device
• Protection against water penetration: IP00, ordinary equipment unprotected against
water penetration
• Non sterile device
• Device not suitable in the presence of flammable anaesthetics;
• Continuous functioning equipment;
EMC
The system meets the EMC Directive 89/336
EN 60601-1-2
EN 55011 Class B (emission), IEC 1000-4-2, IEC 1000-4-3, IEC 1000-4-4
Telemetry
I-ETS 300 220, CEPT T/R 01-04
pr ETS RES 0908 (CE type conformity)
Transmission frequency and output power can be changed upon request according to the
destination country requirements.
Quality Assurance
UNI EN ISO 9001:2000 (Registration n° 387-A Cermet)
Medical Device Directive (CE mark)
MDD 93/42/EEC (Notified Body 0476).
Class IIa
FCC (only USA version)
FCC ID: SN7-K4B2T-USA (transmitter)
FCC ID: SN7-K4B2R-USA (receiver)
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may cause
undesired operation.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
Page 19
Chapter 1 - Getting started - 19
Keynotes
Here are the keynotes used to make the manual easier to read.
Typographic keynotes
These are the typographic keynotes used in the manual.
Style Description
Bold indicates a control or a key to be pressed.
“Italic” indicates a messages shown by the firmware.
Graphic keynotes
These are the graphic keynotes used in the manual.
Illustration Description
shows the button to click in the software to activate the related feature.
Page 20
20 - K4 b2 User Manual
System overview
Portable Unit (PU)
It is fixed to the patient during the test by an anatomic
harness. The PU contains the O2 and CO2 analyzers, sampling
pump, UHF transmitter, barometric sensors and electronics. It
is powered by the rechargeable battery fixed to the back side
of the harness.
K4 b² is also provided with a small display, the PU shows in
real time the following parameters: VT, VE, VO2, VCO2, R,
HR, Rf Marker, battery charge level, temperature and
barometric pressure.
USA and Japan versions have the antenna not detachable from
the portable unit.
Besides data processing and presentation, the Portable Unit
has the following functions:
• Patient data input
• Environment data input (humidity)
• Gas and turbine calibration (automatic)
• Memory functions
• Tests data management
• Data loading to a PC (via RS232)
Telemetry Data Transmission, Receiver Unit (RU)
The RU consists of a small unit connected to a PC through the
RS 232 serial port. The transmission is achieved by a
miniaturized transmitter module located inside the Portable
Unit.
Battery Charger Unit (CU)
The CU allows the simultaneously charge of the 3 Ni-Cd
batteries and to supply the PU during the warm up time.
Page 21
Chapter 1 - Getting started - 21
Flowmeter
The system uses a bi-directional digital turbine. It opposes a very low resistance to flow
(<0,7 cmH2O/l/s to 12 l/s). The air passing through the helical conveyors, takes a spiral
motion which causes the rotation of the turbine rotor. The rolling blade interrupts the
infrared light beamed by the three diodes of the optoelectronic reader. Every
interruption represents 1/6 turn of the rotor, this allows to measure the number of turn in
the time.
Gas analysers
The O2 and CO2 analysers are temperature-controlled and the internal pressure and
expired flow are monitored for an higher reliability if the measurements.
The K4 b² uses Nafion Permapure ® which is a semipermeable capillary tube capable of
removing the humidity in excess without altering the gas concentrations..
The analysers calibration is automatic and shows both graphically and numerically the
flow and concentration signals and the accuracy of the baseline/gain.
PC Software
The PC software, running on Windows™, allows the user to manage data stored in the
Portable Unit or transmitted to PC. Here following a list of the main features available:
• Test data management.
• Viewing data in table and graphic form
• Automatic and manual detection of anaerobic threshold (modified V-slope
method).
• On-line data presentation during tests.
• Advanced data elaboration (filtering, smoothing, built in spread-sheet features).
• O2 Kinetics (O2 deficit, O2 debt and time constant in both rising and falling edge of
a constant load exercise test).
• Flow-Volume loops during the test and overlapped on the rest FVC.
• Real time display of the O2 and CO2 waveforms during the test.
• Control of any ergometer provided with a RS232 interface.
• Custom fittings (linear and exponential).
• Spirometry (FVC, VC, IVC, MVV).
• File exporting in three different formats (Lotus 123™, Excel™, ASCII).
• Automatic detection of the "Steady State".
• Adding parameters and predicted equations trough the "Formula Editor" tool-kit.
• DDE with Microsoft Excel.
• Customizing software environments (colours, printed parameters...).
• Help on line.
Page 22
22 - K4 b2 User Manual
Before starting
Before operating the K4 b2 we strongly recommend to check the equipment and register
you as a customer.
Checking the packing contents
Make sure that the package contains the items listed below. In case of missing or
damaged parts, please contact Cosmed technical assistance.
K4 b2 standard packaging
Code Qty Description
(version) a b c d (see note by side)
C00950-01-04 1 K4 b2 Portable Unit
C00952-01-04 1 K4 b2 Portable Unit
C00952-02-04 1 K4 b2 Portable Unit
C00949-01-04 1 K4 b2 Portable Unit
C01599-01-04 1 1 K4 b2 Receiver Unit
C01599-02-04 1 K4 b2 Receiver Unit
C00260-01-04 1 1 1 1 K4 b2 Battery Charger Unit
C01570-01-06 1 Antenna
C00342-01-12 1 Antenna cable
C02120-01-05 2 2 2 2 Turbine Ø 28mm
C02200-01-11 1 1 1 1 Kit optoelectronic reader K4 b2
A 800 900 001 2 2 2 2 Head cap for the adult masks
C02210-01-08 1 1 1 1 Permapure L73cm
C02125-01-10 1 1 1 1 Mask mouth/nose breath adult S
C02135-01-10 1 1 1 1 Mask mouth/nose breath adult M
C02145-01-10 1 1 1 1 Mask mouth/nose breath adult L
A 661 200 001 1 1 1 1 HR elastic belt
A 661 200 002 1 1 1 1 HR polar transmitter
A 182 320 001 2 2 2 2 Anti moisture filter
C01460-01-06 1 1 1 1 RH/TA probe
A 362 060 001 1 1 1 1 Power cord Schuko 2m
C01507-01-12 1 1 1 1 RS232 cable K4 b2
C00659-01-12 1 1 1 1 Cigar light adapter
A 410 110 002 4 4 4 Battery size AA 1,5V
C02100-01-06 3 3 3 Battery pack TX K4 b2
C02100-02-06 3 Battery pack TX K4 b2
C00341-01-12 2 2 1 1 Cable power supply BNCxRF
C01577-01-12 1 1 1 Cable power supply RX unit
C01929-01-08 1 1 1 1 Harness K4 b2 adult
C01143-01-98 1 1 1 1 Velcro strips (set 8 pieces)
C01800-01-05 1 1 1 1 Kit gas calibration
C01509-01-30 1 1 1 1 Carrying case
C01588-01-20 1 1 1 1 Holder Portable Unit
A 680 023 500 2 2 2 2 Time lag fuses 5x20 250V T500mA
A 680 044 500 1 1 1 1 Fuses 6,3x32 250V F5A
C01790-01-36 1 1 1 1 PC software
C01999-02-DC 1 1 1 1 Conformity declaration
C00067-02-94 1 1 1 1 Registration card
C01508-02-91 1 1 1 1 K4 b2 User Manual
sss
Note:
a: Non telemetric version
b: Internat. telemetric version
c: USA telemetric version
d: Japan telemetric version
Page 23
Chapter 1 - Getting started - 23
Warranty registration
Before using the system, please take a moment to fill in the registration form and the
warranty and return them to COSMED, by doing this you are eligible to the customers
assistance service.
For further information, please refer to the enclosed registration and warranty form. If
the form is not enclosed in the packaging, please contact directly COSMED.
Register the product via software
Together with the PC software, a registration software is supplied. With this software it
is possible to fill in an electronic form with the customer information.
1. To run the software, double click on the icon Registration or select Registration…
from ? menu.
2. Type the requested information and click Send… to send the form via e-mail to
COSMED.
How to contact COSMED
For any information you may need, please contact the manufacturer directly at the
following address:
COSMED S.r.l.
Via dei Piani di Monte Savello, 37
P.O. Box n. 3
00040 - Pavona di Albano
Rome - ITALY
Voice: +39 (06) 931.5492
Fax: +39 (06) 931.4580
email: customersupport@cosmed.it
Internet: http: //www.cosmed.it
Complain, feedback and suggestions
If you have any complain, feedback information or suggestion, please inform us at
complain@cosmed.it.
Page 24
24 - K4 b2 User Manual
Options/Accessories
Accessories
Code Quantity Description
C02150-01-11 1 Adapter Spirometry kit x opto-reader 2000
C00600-01-11 1 3 liters syringe for flows and volume calibration
C02115-01-10 1 Adult face mask with x Turbine 2000
C01278-01-30 1 Mask mouth/nose breath ID28 paediatric L
C01277-01-30 1 Mask mouth/nose breath ID28 paediatric S
A 800 900 004 1 Paediatric Headcap
Options
Telemetry data transmission
The optional Telemetry data transmission allows the researcher to transmit data on line
to a PC up to a distance of 800 meters. All signals are in real time transmitted via radio
to the RU to be saved and displayed on-line to any PC.
Spirometry Kit
Optional software and accessories designed for performing screening Spirometry such
as Forced Vital Capacity, Slow Vital Capacity, Maximum Voluntary Ventilation and
broncho-challenge tests.
Page 25
Chapter 1 - Getting started - 25
PC configuration required
• Pentium II 350 MHz.
• Windows 98, XP.
• 64 Mb RAM .
• CD drive.
• VGA, SVGA monitor.
• Serial Port RS 232 available (2 serial ports in case of Ergometer control). An USB
port can replace one RS232 serial port, if using the USB-RS232 adaptor (Cosmed
code A 388 410 001).
• Any Mouse and Printer compatible with the MS Windows™ operative system.
• PC conform to European Directive 89/336 EMC
Page 26
26 - K4 b2 User Manual
Technical features
Portable Unit
Memory 16,000 breaths
Display LCD 2 lines x 16 characters
Keyboard: waterproof, 6 keys
Serial Port RS 232C
Power supply: Ni-MH rechargeable batteries 3 hours endurance
Thermometer: 0-50°C
Barometer: 53-106 Kpa
Dimensions PU : 170x55x100 mm,
Dimensions battery: 120x20x80 mm
Weight: 400g
Receiver Unit
Transmission range: 800 meters
Battery: 4 x 1.5 V AA
Dimension: 170 x 48 x 90 mm
Weight: 550 g
PC interface: RS 232
Battery charger Unit
Power supply 120V - 240 V
Power consumption 25 W
Flowmeter
Type: Bidirectional digital turbine Ø 28 mm
Flow Range: 0,03-20 L/sec
Accuracy: ± 2%
Resistance: <0.7 cmH2O s/L @ 12 L/s
Ventilation Range: 0-300 litres x min
Oxygen Sensor (O2)
Response time: <150 ms
Range: 7-24% O
2
Accuracy: ±0.02% O2
Carbon Dioxide Sensor (CO2)
Response time: <150 ms
Range: 0-8%
Accuracy: ±0.01%
Humidity absorber
Capillary of Nafion (Permapure ®)
Power Supply
Voltage: 100V-240V ±10%; 50/60Hz
Power consumption 60W
Environmental Sensors
Temperature: 0-50°C
Barometer: 400-800 mmHg
Humidity: 0-100%
Page 27
Measurements
Page 28
28 - K4 b2 User Manual
Pulmonary function tests and measured parameters
Breath by Breath exercise testing
Symbol UM Parameter
VO2 ml/min Oxygen Uptake
VCO2
ml/min
Carbon Dioxide production
Vt l Tidal Volume
FetO2 % End Tidal O2
FetCO2 % End Tidal CO2
R --- Respiratory Quotient
VE l/min Ventilation
HR 1/min Heart Rate
Qt l Cardiac output
AT --- Anaerobic Threshold
VE l/min Ventilation
SV l/min Stroke volume
RF 1/min Respiratory Frequency
FeO2, FeCO2 % Averaged expiratory concentration of O2 e CO
VE/VO2 --- ventilatory equivalent for O2
VE/VCO2 --- ventilatory equivalent for CO2
VO2/HR ml/beat Oxygen pulse
VO2/Kg ml/min/Kg VO2 per Kg
Ti, Te, Ti/Ttot sec time breaths
Vd/Vt --- Vd/Vt ratio
PaCO2 mmHg arterial PCO2 (estimated)
P(a-et)CO2 mmHg Delta PaCO2 – PetCO2
Indirect Calorimetry
Symbol UM Parameter
EE Kcal/day Energy Expenditure
EE/BSA Kcal/day/m2 Energy Expenditure/Body surface area
EE/Kg Kcal/day/Kg Energy Expenditure pro Kg
FAT Kcal/day Fats
CHO Kcal/day Carbohydrate
PRO Kcal/day Protein
FAT% % % Fat
CHO% % % Carbohydrate
PRO% % % Protein
npRQ —- Respiratory quotient not protein
Lactate Threshold (V-Slope)
Symbol UM Description
VO2 @ LT l/m Lactate (Anaerobic) Threshold STPD
R @ LT -- Respiratory Quotient @ LT
Time @ LT hh:mm:ss Time @ LT
VCO2 ml/min CO2 output @ LT STPD
VE l/min Ventilation @ LT BTPS
Page 29
Chapter 2 - Measurements - 29
HR bpm Heart Rate @ LT
O2 Kinetics
Parameter UM Calculation
O2 deficit l/m VO2@work*tau
O2 debt l/m VO2'@work*tau
Spirometry Tests (option)
FVC - Forced Vital Capacity
Symbol UM Parameter
FVC l Forced Expiratory Vital Capacity
FEV1 l Forced Expiratory Volume in 1 sec
FEV1/FVC% % FEV1 as a percentage of FVC
PEF l/sec Peak Expiratory Flow
FEV0.5 l Forced Expiratory Volume in 0.5 sec
FEV6 l Forced Expiratory Volume in 6 sec
FEV1/FEV6 % FEV1 as a percentage of FEV6
FEV6/FVC% % FEV6 as a percentage of FVC
Best FVC l Best Forced Expiratory Vital Capacity
Best FEV1 l Best Forced Expiratory Volume in 1 sec
Best PEF l/sec Best Peak Expiratory Flow
Vmax25% l/sec Expiratory Flow when 75% of the FVC remains to be exhaled
Vmax50% l/sec Expiratory Flow when 50% of the FVC remains to be exhaled
Vmax75% l/sec Expiratory Flow when 25% of the FVC remains to be exhaled
FEF25-75% l/sec Mid-exp flow between 25-75%FVC
FET100% sec Forced expiratory time
FEV2 l Forced Expiratory Volume in 2 sec
FEV3 l Forced Expiratory Volume in 3 sec
FEV2/FVC% % FEV2 as a percentage of FVC
FEV3/FVC% % FEV3 as a percentage of FVC
FEV1/VC% % Tiffenau index
FEF50-75% l/sec Mid-exp flow between 50-75%FVC
FEF75-85% l/sec Mid-exp flow between 75-85%FVC
FEF0.2-1.2% l/sec Mid-exp flow between 0.2 l - 1.2 l
FiVC L Inspiratory Forced Vital Capacity
FiF25-75% l/sec Forced mid-inspiratory flow
FiV1 l/sec Forced Inspiratory Volume in 1 sec
PIF l/sec Peak Inspiratory Flow
VEXT ml Extrapolated Volume (back extrapolation)
PEFT msec Time to PEF (10% - 90%)
VC/IVC - Slow Vital Capacity and Ventilatory pattern
Symbol UM Parameter
EVC l Expiratory Vital Capacity
IVC l Inspiratory Vital Capacity
ERV l Expiratory Reserve Volume
IRV l Inspiratory Reserve Volume
IC l Inspiratory Capacity
Page 30
30 - K4 b2 User Manual
VE l/min Expiratory Minute Ventilation
Vt l Tidal Volume
Rf 1/min Respiratory Frequency
Ti sec Duration of Inspiration
Te sec Duration of Expiration
Ttot sec Duration of Total breathing cycle
Ti/Ttot —- Ti/Ttot ratio
Vt/ti l/sec Vt/ti ratio
MVV - Maximum Voluntary Ventilation
Symbol UM Parameter
MVV l/min Maximum Voluntary Ventilation
MVt l Tidal Volume (during MVV)
MRf 1/min Maximum Respiratory frequency
MVVt sec MVV duration time
Bronchoprovocation Response
Symbol UM Parameter
FallFEV1 % Fall in FEV1 from baseline or post diluent
FallVmax50% % Fall in Vmax50% from baseline or post diluent
P10 —- Provocative dose causing FEV1 to fall 10% from baseline
P15 —- Provocative dose causing FEV1 to fall 15% from baseline
P20 —- Provocative dose causing FEV1 to fall 20% from baseline
Page 31
Installation
Page 32
32 - K4 b2 User Manual
Installation sequence
Before starting operating with the system make sure to meet the environmental and
operational conditions reported in Chapter 1.
Battery Charger Unit
The Battery Charger Unit allows the following functions:
• Charge 3 rechargeable batteries simultaneously.
• Charge batteries by means of the car lighter plug.
• Supply the K4 b2 Portable Unit directly by the main power.
Check voltage
The Battery Charger Unit is provided with a switch that allows to change the voltage
according to the following values:
• 115V 50-60 Hz (100V-120V)
• 220V 50-60 Hz (200V-240V)
To change setting, move the switch on the new voltage by using a small screwdriver or
a pen.
Turn the Unit on
1. Connect the Charger Unit to the main plug.
2. Turn on the Unit by pressing the orange power switch.
Charge the batteries
1. Insert the batteries into the places on the top of the unit as shown in the illustration
below.
2. The small green LED placed on the front panel warns the charge in progress. The
battery is charged when the light signal placed on the front panel of the Charger
Unit starts blinking.
Note: USA and Japan versions have not the antenna connector on the battery.
sss
Warning: Before turning the
Battery Charger Unit on, check
the voltage switch selected
meets your main voltage.
Page 33
Chapter 3 - Installation - 33
Battery low
It is recommended to charge batteries before each test. When the batteries are low the
warning message is prompted on the PU by two beeps for an half charged battery and
three beeps for a complete discharged battery.
As soon as the message appears, you must change batteries immediately since the
system has only few minutes of endurance still available. The system allows to change
the battery during testing as well.
During the test, it is possible to monitor the battery status in real time by selecting
Information from View menu.
Portable Unit
The PU can be supplied either by the Charger Unit or by rechargeable batteries. It is
recommended during Warm-up to supply it exclusively by the Charger Unit time in
order to save the battery used normally during the test.
The control panel of the Portable Unit is mainly composed by a keyboard, and 4 plugs
for power supply, turbine, antenna, heart frequency and sampling tube connections. The
following illustrations show in detail the control panel.
A Marker key
B Display
C Cancel key
D Enter key
E Scroll up/down key
F On/Off switch
Note: USA and Japan versions have the antenna not detachable from the portable unit.
Page 34
34 - K4 b2 User Manual
Warm up
The K4 b2 uses O2 and CO2 heated sensors. We strongly recommend at least 45 minutes
warm-up time at an ambient temperature of 20°C. More time is necessary if the
environmental temperature is lower. Calibration or testing before warm-up time is
completed, can cause wrong results.
Warming-up the unit by main power
1. Connect the Charger Unit to the main power by the AC power cable.
2. Connect the power-supply cable both in the Charger Unit and K4 b2 as shown
below and turn both the units on.
Turning on/off the portable unit
To turn the K4 b2 on or off press the on/off key.
Connect the rechargeable battery
Plug the power supply cable into the battery socket as shown in the following
illustration.
International telemetric version USA and Japan Telemetric version
Sometimes you might need to change the battery during the test. To do this you must
change the battery in the shorter time possible. The Portable Unit does not transmit data
while it is not powered.
Warning: During testing make sure to change the battery as fast as possible, since a
long time could compromise the reliability of measurements.
sss
Important: In order to ensure
accurate gas measurements,
you must wait for a warming-
up
time before operating the K4
b². During this period the PU
must be turned on for at least
45 minutes.
sss
Warning: Supply K4 b2 with
Charger Unit for warming up
only.
Page 35
Chapter 3 - Installation - 35
Receiver Unit
Optionally the K4 b2 is provided with a transmitter board (located inside the K4 b
2
unit)
and a Receiver Unit to monitor "on-line" exercise tests performed either in the field or
in the lab. All data measured by the K4 b
2
are transmitted "breath by breath" to the
Receiver Unit in real time. The RU (illustrated below) must be connected to a Personal
Computer with any RS 232 serial port to display data "on-line" in the management
software. The transmission range is 800 meters in open field. However during
transmission the test is stored in the memory of the K4 b
2
Unit so that, in case of
transmission interference no data is lost.
Turning on/off the receiver unit
To turn the receiver unit on or off use the switch on the front side of the unit.
Receiver unit power supply
The K4 b2 Receiver Unit is provided with four 1.5 V AA batteries. Before turning the
unit on be sure that batteries are charged. If the status battery indicator blinks red you
must replace the 4 batteries. The unit can be also supplied by 6V DC power through the
cable provided in the equipment.
The receiver unit can be supplied by two different sources:
• by the Battery Charger Unit: connect the units by the 6V DC cable.
• by 4 AA 1,5V batteries.
Calibration Gas Cylinder
In order to calibrate the sensors you need to have available calibration cylinder with the
following gas concentration:
Cylinder Recommended Gas mixture
Calibration O2 16%, CO2 5%, N2 Balance
For the calibration procedure, see the Calibration chapter.
Page 36
36 - K4 b2 User Manual
Connecting the K4 b2 to the patient
K4 b
2
is a portable system with a total weight lower than 1 kg. Cosmed has developed a
special harness to fix the unit to any subject. The harness consists of a belt that can be
adjusted to fit different sizes and positions. I.e. if you need to test cyclist or rower
athletes we recommend to locate both units (K4 b2 and battery) on the back of the
subject to increase comfort and to avoid any obstacles during movements. For this
reasons plates are provided with the harness and they can be easily removed and placed
in different positions.
Assemble the mask and the flowmeter
K4 b² is provided with a turbine flowmeter that can be easily disassembled for allowing
cleaning and disinfection.
1. Plug the turbine in the mask adapter by pushing and rotating it clock-wise till you
feel a stop.
2. Insert the optoelectronic reader over the turbine and press it till the mask.
3. Plug the wind cover as described in point 1.
4. Plug the sampling tube in the little hole located in the optoelectronic-electronic
reader.
5. Plug the turbine cable in the Turbine plug control panel of the K4 b2.
Using the "Ultimate Seal"
The "ultimate seal" is a moulded of Elasto-Gel, a glycerine based hydrogel. This
product is a unique polymer gel that forms an intimate seal between the face and the
mask. It has to be used for mask applications on hard to seal faces and where leaks are
not tolerated.
• Will not irritate the skin
• Contains no adhesives.
• Has no odour
• Will not dry out
• Single patient use
sss
Notice: In order to preserve
items composing the mask, it's
recommended to grease
periodically O-rings in the
optoelectronic reader with
Silicone compound grease.
Page 37
Chapter 3 - Installation - 37
Apply the seal to the mask
Apply seal to clean, residue-free mask only and follow the instructions below:
1. Remove the plastic tray from the bag. Peel off clear film and retain for later use.
2. While holding tray align the nose area of mask to nose area of Ultimate Seal™ gel.
Press together and roll mask down over the surface of the gel seal attaching it to the
mask and releasing it from the tray.
3. If needed, adjust the position of the seal, aligning it with the outer perimeter of the
mask sealing surface.
4. The mask is now ready to be placed on the subject's face.
To remove seal on mask
• The Ultimate Seal™ have been conceived for a single patient use only, it can not be
cleaned or sterilised.
• If mask requires cleaning for a new patient application then pull off and dispose of
the Ultimate Seal™.
• To keep the seal clean between use, keep it attached to the mask and place the clear
film against the Ultimate Seal™ gel on the mask. When the seal becomes
discoloured or opaque (approximately two weeks) dispose of the current seal and
replace it with a new one.
Assembling the flowmeter for spirometry tests
In case the spirometry kit option is purchased assemble the turbine as shown in the
illustration below.
sss
Notice: Avoid the exposure
to the sun. Do not put the
seal into the water.
Page 38
38 - K4 b2 User Manual
Fixing the K4 b2 to the patient
1. Fix the heart belt to the patient’s box thorax.
2. Fix the K4 b
2
unit to the front of the harness. Do the same operation with the battery
on the back .
3. Connect the battery cable to the 6V plug of the K4 b
2
control panel. Be sure that the
red plug, that repairs the plug from water or sweat drops, is on the Portable Unit
side.
4. Connect the antenna cable to the Antenna plug of Portable Unit control panel.
5. Insert the heart frequency receiver and temperature probe cable in the HR-Temp
plug placed on the control panel.
6. Insert the male connector of the turbine in the Turbine plug on the control panel.
7. Fix the power supply cables, antenna and turbine on the right side of the jacket with
the velcro stripes provided in the equipment. Fix the heart frequency probe on the
left side.
Note: USA and Japan versions differ from the picture because of the antenna
placement.
sss
Notice: Be sure to fix the
Heart rate probe on the left
side, while the other cables
have to be fixed on the right
side. This must be done for
avoiding interferences
between cables.
sss
Notice: Fix all cables with
the velcro strips provided
with the equipment.
Page 39
Chapter 3 - Installation - 39
Connecting the K4 b2 to the PC
K4 b2 can be connected to any PC provided with serial port in order to monitor "online" physiological data during any kind of activity.
Connect the Portable Unit to the PC
Connect the K4 b2 Portable Unit to a serial port available in the PC. Be sure to set the
K4 b2 software to the proper serial port for the transmission.
Connect the Receiver Unit to the PC
Connect the telemetry module to a serial port available in the PC. Be sure to set the K4
b2 software to the proper serial port for the transmission.
Page 40
40 - K4 b2 User Manual
Software installation
The software is made of two programs: one for the ergometry and the other one for the
spirometry (option). The two programs share the same archive and use the same
program for the system calibration, even if they are used for performing completely
different tests.
Installing the software
1. Select Run... from Windows Start menu.
2. Insert the disk in the proper drive.
3. In the Command line, type <name of the drive>:\install.
4. Click on OK (or press ENTER key).
5. The program will load up a dialog box and ask for a directory where to be installed.
6. When the installation is over, the program will advise you with a message
indicating that the installation has been successfully completed, click on End.
Note: the directory for the Spiro software must be the same of the K4 b2 (ergo).
Run the software
1. In the Windows Start menu, open the Program Group in which the software was
installed.
2. Click the K4 b2 icon.
PC port configuration
The first time the software is used, it is necessary to configure the communication port
with the PC (USB, COM1, COM2,…).
For further details, see the chapter Database management.
sss
Notice: The software is
copy-protected. Install the
software from the original
disk.
Page 41
Chapter 3 - Installation - 41
Software main features
Display
The program may contain several windows. The active window is highlighted with a
different colour of the caption. Some functions of the program are "active window"
sensitive (Print, right key of the mouse).
Tool bar
Many of the functions that may be selected from the menu can be activated more
rapidly by clicking with the mouse on the corresponding icon in the tool bar.
Positioning the mouse cursor on one of the buttons of the toolbar (if the option Hints is
enabled), the description of the corresponding function is shown in a label.
Show/hide the toolbar
Select Toolbar from Options menu in order to show or hide the toolbar.
Dialog windows
The typical operating environment of Microsoft Windows is the Dialog box. This
window is provided with a series of fields in which input the information.
Use of the keyboard
• To move the cursor among fields, press the Tab key until you reach the desired
field.
• Press the Enter key to confirm the information input on the dialog box or press the
Esc key to cancel changes.
Use of the mouse
• To move the cursor among fields, move the mouse on the desired field and left-
click.
• Click on the OK button with the Left button of the mouse to confirm the
information input on the dialog box or click on Cancel button to cancel changes.
Scroll bars
Some windows are provided with scroll bars that help to see data exceeding the window
space available.
• To move the scroll bar row by row click the scroll arrows at the end of the scroll
bars
• To move the scroll bar page by page click on the grey area at both sides of the
scroll fields
On line help
COSMED K4 b2 Help is a complete on-line reference tool that you can use at any time.
Help is especially useful when you need information quickly or when the user manual is
not available. Help contains a description of each command and dialog box, and
explains many procedures for accomplishing common tasks.
To get the Help on line, press the F1 key.
Software version
To know the software version and the serial number of the software, select About…
from ? menu.
Page 42
42 - K4 b2 User Manual
Loading...