Magnamed VentMeter User manual

INSTRUCTION MANUAL
Ventilator Analyzer
VentMeter
Part Number: 1901509 Rev:05

©Copyright 2019
Magnamed Tecnologia Médica S.A.
Magnamed Tecnologia Médica S.A.
Rua Santa Mônica, 801 - 831 –Bairro Capuava
CEP: 06715-865 –Cotia –SP –Brazil
Tel: [phone]
E-mail: [e-mail]
Website: www.magnamed.com.br
MAGNAMED Tecnologia Médica S.A.
CNPJ: 01.298.443/0002-54
Inscrição Estadual: 149.579.528.111

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MAGNAMED Ventilator Analyzer - VentMeter P/N: 1901509 –Rev 05
1 Definitions and Information
Warning
•Warns the user about the possibility of injury, death or other serious adverse reaction
due to the misuse of the equipment.
Caution
•Warns the user about the possibility of equipment failure associated with the use or
misuse. Like equipment malfunction, damage or third-party property damage and
indirectly to patient injury.
Notes
•Important Information.

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MAGNAMED Ventilator Analyzer - VentMeter P/N: 1901509 –Rev 05
The VentMeter Gas Flow Analyzer is a device designed to carry out lung ventilator
evaluation. The measured parameters are: Flow, Volume, Pressure, Times, Frequency,
Compliance, and Resistance, among others. For these measurements, the analyzer
counts with a flow sensor and transducer set extremely precise that grants measurement
precision.
This analyzer coupled to lung ventilator under test and a lung simulator allows its complete
characterization.
Basic Characteristics:
•AC Input 100 ~ 240 VAC –50 ~ 60 Hz;
•Internal battery with intelligent charger;
•Graphic LCD display to show monitored parameters and pressure curve, flow
curve and volume curve;
•FiO2monitor, maximum pressure, mean pressure and PEEP/CPAP pressure,
respiration frequency (rate) and I:E ratio;
•Key to navigate among many available screens;
•Key to select the monitored parameters to be visualized;
•Allows –serial communication to a PC for registering results.
•PulmoTrend Software –to register data and best visualization.
Warning
•This symbol indicates to read the instruction manual to get more information.
•This equipment should be used exclusively to evaluate lung ventilators performance. It
should not be used to monitor patient ventilation in Intensive Care Units.
•This manual should be completely read, to safely and correct use of the equipment and to
get maximum performance.
•Disconnect the equipment from electrical power source before cleaning.
•Do not expose this equipment to liquids to avoid electrical shock hazards. Do not use the
equipment if the internal components were being exposed to liquids.
Caution
•The Ventilator Analyzer don’t emit electromagnetically waves that interfere in the functioning
of the equipment’s in its proximity.
•The Ventilator Analyzer should be CALIBRATED yearly. All the maintenance service
procedure should be done by trained personnel only.
•Use only parts, pieces, cables and sensors specified and acquired from MAGNAMED. Part
Number in chapter 12.
•Turn on the equipment and proceed to the verification and basic adjustments –follow the
instructions;
•Wait at least 30 minutes to get temperature stabilization in order to have stable pressure and
flow readings.
•Observe the correct connection of the flow sensor and verify that no obstruction is present
inside the sensor.
•Do not expose the equipment to extreme temperatures. To get correct measurements be sure
that the ambient temperature is between 18 and 40 ºC during its use.
•Do not use the equipment if any problem cannot be solved.

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MAGNAMED Ventilator Analyzer - VentMeter P/N: 1901509 –Rev 05
•The Ventilator Analyzer has an independent power supply unit. Keep it connected to the
electrical power source to charge the internal batteries.
oPlug the power cord into a three pin, NBR 14136 standard (Chapter 5.2);
oKeep the equipment connected to a power source even when it is turned off so that
the internal batteries are permanently charged.
oRecharge the batteries completely after use or after a long period of storage;
Notes
•Dispose of removed parts in accordance with the institution's parts and parts disposal protocol and
follow local governmental recommendations for environmental protection, especially in the case of
electronic waste or electronic parts (e.g. batteries).
•The technical specifications of MAGNAMED‘s products are subject to change without previous
notice.
•Pressure units:
1 mbar (millibar) = 1 hPa (hectoPascal) = 1,016 cmH2O (centimeters of water)
Practically these units can be used as:
1 mbar = 1 hPa ≈1 cmH2O

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MAGNAMED Ventilator Analyzer - VentMeter P/N: 1901509 –Rev 05
2 Index
1DEFINITIONS AND INFORMATION .............................................................................................................3
2INDEX...................................................................................................................................................................6
3DESCRIPTION....................................................................................................................................................7
3.1 INTENDED USE ...................................................................................................................................................7
3.2 OPERATING PRINCIPLES .....................................................................................................................................7
4PART IDENTIFICATION..................................................................................................................................9
4.1 PARTS AND COMPONENTS ..................................................................................................................................9
4.2 IDENTIFICATION ...............................................................................................................................................11
5COMMAND AND ADJUSTMENT..................................................................................................................14
6VENTILATION PARAMETERS.....................................................................................................................22
7PREPARING TO USE.......................................................................................................................................23
7.1 VENTILATOR ANALYZER SETUP.......................................................................................................................23
7.2 ELECTRICAL POWER CONNECTION...................................................................................................................25
7.3 OXYGEN SENSOR (OPTIONAL)..........................................................................................................................25
7.4 BEFORE USE.....................................................................................................................................................26
7.4.1 Initial Procedures ..................................................................................................................................26
8VENTILATOR TEST SAMPLES....................................................................................................................27
9TROUBLESHOOTING.....................................................................................................................................31
10 PARTS AND ACCESSORIES..........................................................................................................................33
11 PREVENTIVE MAINTENANCE ....................................................................................................................34
11.1 CHECK LIST.................................................................................................................................................34
11.2 INTERNAL LITHIUM-ION BATTERY..............................................................................................................34
12 TECHNICAL SPECIFICATION.....................................................................................................................35
12.1 TECHNICAL SPECIFICATIONS .......................................................................................................................35
12.1.1 Specifications ....................................................................................................................................35
12.1.2 Electrical Characteristics..................................................................................................................35
12.1.3 Environment and Physical Specifications:........................................................................................35
12.1.4 Measurement and Presentation Specification...................................................................................36
12.1.5 Calibration and Maintenance Specification: ....................................................................................37
13 WARRANTY......................................................................................................................................................38

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MAGNAMED Ventilator Analyzer - VentMeter P/N: 1901509 –Rev 05
3 Description
3.1 Intended Use
The Ventilator Analyzer –VentMeter is an instrument to be used in evaluation and test of lung ventilators.
The measurements are done by flow sensors and pressure sensors.
The flow measurement is bidirectional and is carried out by three kind of flow sensors calibrated to neonatal
to adult range of flows.
The Ventilator Analyzer measures 17 mechanical ventilation parameters, besides measuring the oxygen
concentration of the gas output from the ventilator.
The Ventilator Analyzer can be used to pre-evaluate lung ventilators before its acquisition, as well as for
periodical performance evaluation of the equipment in service and is extremely useful during training courses
to interpret ventilation curves.
Basic Characteristics:
•AC Input 100 ~ 240 VAC –50 ~ 60 Hz;
•Internal battery with intelligent charger;
•LCD Display to show pressure curve, flow curve, volume curve and monitored values;
•FiO2monitoring, maximum pressure, mean pressure, PEEP/CPAP, respiration rate and I: E
Ratio;
•Keys to navigate between many available screens;
•Keys to select monitored parameters to be visualized;
•Allows serial communication to a PC to register all the results
•PulmoTrend software to register all data and to better visualization (basic version available to
download and is free)
3.2 Operating Principles
The ventilation parameters measurements are done by a flow sensor connected proximally to the lung
simulator.
Through this flow sensor the equipment gets the basic readings of:
•Flow
•Pressure
These data are continuously monitored
The other parameters are calculated from these two data:
•Maximum Flow
•Minimum Flow
•Exhaled Volume (Tidal Volume)
•Inspired Volume
•Minute Volume

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MAGNAMED Ventilator Analyzer - VentMeter P/N: 1901509 –Rev 05
•Inspiratory Time
•Expiratory Time
•I: E Ratio
•Respiration Frequency (Respiration Rate)
•Maximum Inspiratory Pressure (Peak Inspiratory Pressure)
•PEEP (Positive End Expiratory Pressure)
•Mean Pressure
•Plateau Pressure
•Minimum Pressure
•Static Compliance
•Dynamic Compliance
•Airway Resistance
Beside these monitored data by the flow sensor, it is possible to measure the oxygen concentration of the gas
mixture from the lung ventilator under test (FiO2–Oxygen Inspired Fraction).
The available flow sensors are:
•NEONATAL Sensor –NEO - Flow from 0 to 20 L.min-1
•INFANT Sensor –INF - Flow from 0 to 50 L.min-1
•ADULT Sensor –ADU - Flow from 0 to 150 L.min-1

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MAGNAMED Ventilator Analyzer - VentMeter P/N: 1901509 –Rev 05
4 Part Identification
4.1 Parts and Components
The following items are supplied integrating the equipment.
Quantity
Description
Picture
01
VentMeter –Ventilator Analyzer
01
Kit Flow Sensors
01
Resistance Kit

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MAGNAMED Ventilator Analyzer - VentMeter P/N: 1901509 –Rev 05
Quantity
Description
Picture
01
Testing bag set
01
Handbag
01
CD –Instruction Manual and PulmoTrend
Software for PC –basic version
01
Source AC/DC 90 –2source 60 Vac to +12 Vdc

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MAGNAMED Ventilator Analyzer - VentMeter P/N: 1901509 –Rev 05
4.2 Identification
1 F1 Key
This key assumes the functions indicated by a highlighted text in the screen: Config. and Return
2 F2 Key
This key assumes the functions indicated by a highlighted text in the screen: Cal. and Next
3 LCD Display
Show graphs and monitored parameters.
4 UP Key or Increment Key
This key increments or UP ARROW to allow navigation within the screen.
5 Confirm Key
This key selects the function or parameter to be monitored.
6 Decrement Key or Down Key
This key decrements or DOWN ARROW to allow navigation within the screen.
7 Galvanic Cell Connector to measure O2Concentration

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MAGNAMED Ventilator Analyzer - VentMeter P/N: 1901509 –Rev 05
It allows a galvanic cell connection to measure O2concentration in the respiratory circuit.
Caution
•Use only cables and sensors specified and acquired from MAGNAMED. Acquisition and part
number information see chapter 12.
8 Distal Flow Sensor Connector
Distal flow sensor pressure measurement port connector.
Caution
•Connect the tubing according to the picture shown in the front panel of the VentMeter.
9 Proximal Flow Sensor Connector
Proximal flow sensor pressure measurement port connector.
10 PC Serial RS-232 connectors
PC Serial communication connector (RS-232). It communicates exclusively to Magnamed’s PulmoTrend
Software (basic version available for download).
Caution
•Use cable specified by MAGNAMED. Use SERIAL TO USB converter cable with appropriate
driver for PC.
11 ON / OFF Switch
This key allows turning power on or off the Ventilator Analyzer.
12 DC Power connector

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MAGNAMED Ventilator Analyzer - VentMeter P/N: 1901509 –Rev 05
The power supply unit is an AC/DC
Converter that can be connected to an
electrical power source as shown in the
figure.
Tension
1
2
3
110VAC
NEUTRAL
PHASE
GROUND
220VAC
PHASE
PHASE
GROUND
Figure - socket pattern NBR 14136
Notes
•Plug and Socket Standard: ABNT NBR-14136 - Plugues e tomadas para uso doméstico e
análogo até 20 A/250 V em corrente alternada - Padronização ”
The internal battery of the Ventilator Analyzer –should be always charged and ready to use in eventual
electrical power failure, to achieve it this cable should be kept connected to the mains. This carries out battery
charging even if the VentMeter is turned off.
After long use of the Ventilator Analyzer in battery operated mode it is advisable that a complete recharging
cycle be done preparing it to the next use.
Caution
•If the Ventilator Analyzer - VentMeter remains disconnected from the electrical power
supply for a period greater than one month, it is recommended to recharge it before use.
1 3 2

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MAGNAMED Ventilator Analyzer - VentMeter P/N: 1901509 –Rev 05
5 Command and Adjustment

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MAGNAMED Ventilator Analyzer - VentMeter P/N: 1901509 –Rev 05
All the measurements are selected from the main screen through the selection button (UP and DOWN
arrows) and CONFIRM . The F1 and F2 have variable function according to highlighted
text shown in the screen bellow each button.
Main Screen:
In the Main Screen if INCREMENT or DECREMENT key is pressed the arrow moves to
Pressure, Flow, Volume or Monitor
In the figure above if the ENTER key is pressed the Display will show the Pressure Measurement
Screen.
Notes
•The number at superior right corner indicates the distance in screen from the main
screen. Zero = Main screen.
•The letter at superior left corner indicates which flow sensor is selected:
A = Adult Sensor;
I = Infant Sensor;
N = Neonatal Sensor.
Pressure Measurement Screens:
The F1 and F2 keys allows navigation between pressure screens, notice that as the F2 key is pressed the
number at the superior right corner is incremented, indicating greater distance from the Main Screen.
•Pressure Screen (1): Pressure Numerical Values
oScreen Central –Instantaneous Pressure
oScreen Inferior –Minimum Pressure, Maximum Pressure, PEEP
•Screen Pressure (2): Pressure Graph
oScreen Central –Pressure Graph
oScreen Inferior –Instantaneous Pressure Value
•Pressure Screen (3): Graph Scale
oMax Pressure –Maximum pressure value in the graph (adjusts from 20 to 120 cmH2O with
steps of 5 cmH2O)
oTime –One screen sweep time (adjusted from 1 to 15 seconds with steps of 1 second).

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MAGNAMED Ventilator Analyzer - VentMeter P/N: 1901509 –Rev 05
When adjusted in 1, it is possible to see a complete respiration cycle with 60 min-1
(respiration rate) rate. Adjusting in 12, it is possible to see a complete respiration cycle with 5
min-1 respiration rates.
Flow Measurement Screens:
By pressing the ENTER key, in the Main Screen, when the arrow is pointing to Flow, the display will
show the Flow Measurement Screen.
The F1 and F2 key allows navigation between flow screens, notice that as the F2 key is pressed the number
at the superior right corner is incremented, indicating greater distance from the Main Screen.
•Flow Screen (1): Flow Numerical Values
oCentral Screen –Instantaneous Flow
oInferior Screen –Minimum Flow and Maximum Flow
•Flow Screen (2): Flow Graph
oCentral Screen –Flow Graph
oInferior Screen –Instantaneous Flow Value
•Flow Screen (3): Graph’s Scale
oMax Flow –Maximum value of flow in the graph (adjusted from 10 to 150 L.min-1 with steps
of 10 L.min-1)
oTime –One screen sweep time (adjusted from 1 to 15 seconds with steps of 1 second).
When adjusted in 1, it is possible to see a complete respiration cycle with 60 min-1
(respiration rate) rate. Adjusting in 12, it is possible to see a complete respiration cycle with 5
min-1 respiration rates.
Volume Measurement Screens:
By pressing the ENTER key, in the Main Screen, when the arrow is pointing to Volume, the display
will show the Volume Measurement Screen.
The F1 and F2 key allows navigation between volume screens, notice that as the F2 key is pressed the
number at the superior right corner is incremented, indicating greater distance from the Main Screen.
•Volume Screen (1): Volume Numerical Values
oCentral Screen –Instantaneous Volume
oInferior Screen –Vmin: Minute Volume; Vexp: Expired Volume; Vinsp: Inspired Volume
•Volume Screen (2): Volume Graph
oCentral Screen –Volume Graph
oInferior Screen –Instantaneous Volume Value
•Volume Screen (3): Graph’s Scale

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MAGNAMED Ventilator Analyzer - VentMeter P/N: 1901509 –Rev 05
oMax Volume –Maximum value of volume in the graph (adjusted from 50 to 2000 mL with
steps of 50 mL)
oTime –One screen sweep time (adjusted from 1 to 15 seconds with steps of 1 second).
When adjusted in 1, it is possible to see a complete respiration cycle with 60 min-1
(respiration rate) rate. Adjusting in 12, it is possible to see a complete respiration cycle with 5
min-1 respiration rates.
Monitor Screen:
In the monitor screen it will be possible to select up to 6 parameters with two screens of 3 parameters
simultaneously.
Screen sequence without any parameter selected:
Screen sequence with up to 3 parameters selected:
Screen sequence with up to 6 parameters selected:
By pressing the ENTER key, in the Main Screen, when the arrow is pointing to Monitor the display
will show the Monitor Screen.
The F1 and F2 key allows navigation between monitor screens, notice that as the F2 key is pressed the
number at the superior right corner is incremented, indicating greater distance from the Main Screen.
.
•Monitor Screen (1): Monitored Numerical Value I
oSuperior Screen –Monitored Parameter Name
oCentral Screen –Param 1, Param 2, Param 3
oInferior Screen –Unity of measurement
•Monitor Screen (2): Monitored Numerical Values II
oSuperior Screen –Monitored Parameter Name
oCentral Screen –Param 4, Param 5, Param 6
oInferior Screen –Unity of Measurement
•Monitor Screen (3): Monitored Parameters Selection I
oVexp –Expired Volume (Tidal Volume)

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MAGNAMED Ventilator Analyzer - VentMeter P/N: 1901509 –Rev 05
oPEEP –Positive Expiratory End Pressure
oPmax –Maximum Pressure
oVminuto –Minute Volume
oFreq –Respiration Frequency (Rate)
oFiO2 –Inspired O2Fraction
•Monitor Screen (4): Monitored Parameters Selection II
oTinsp –Inspiratory Time
oTexp –Expiratory Time
oI:E –I:E Ratio
oVinsp –Inspired Volume
oFmax –Maximum Flow
oFmin –Minimum Flow
•Monitor Screen (5): Monitored Parameter Selection III
oPmean –Mean Pressure
oPmin –Minimum Pressure
oPplat –Plateau Pressure
oCsta –Static Compliance
oCdyn –Dynamic Compliance
oRaw –Airway Resistance
The 3, 4 and 5 monitor screen allows to select the parameters to be shown continuously. In these screens the
position of the arrow and the ENTER key selects or inhibits the parameter to be shown in the monitor screen.
The selected parameters will be blinking and the inhibit ones will not. To navigate between these parameters,
use the UP and DOWN keys.
It is possible to choose up to 6 (six) parameters to be shown in two monitor screens. Each monitor screen (1
or 2) can show up to 3 parameters simultaneously.
Example:
a. Vexp selection
In this case there will be only Monitor Screen (1) with the expired volume centralized in the screen.
By pressing F2, the presented screen will be Monitor Screen (3) and at superior right corner of the
screen will show number 2 indicating the distance in screens to the Main Screen.
b. Selecting Vexp and Vinsp
In this case there will be only Monitor Screen (1) with the expired volume in the left side of the screen
and the inspired volume in the right side of the screen.
c. Selecting Vexp, Vinsp and Freq

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MAGNAMED Ventilator Analyzer - VentMeter P/N: 1901509 –Rev 05
In this case there will be only Monitor Screen (1) with the expired volume in the left side of the screen,
frequency (rate) in the middle of the screen and the inspired volume in the right side of the screen.
Note
•The parameters will always be shown in the sequence presented in the Monitor Screens
(3,4 and 5).
•In example (c) instead of Vexp, Vinsp and Freq order it will show Vexp, Freq e Vinsp.
d. Selecting Vexp, Vinsp, Freq and FiO2
In this case there are four parameters to be shown in two screens. Screen Monitor (1) with three
parameters (Vexp, Freq and FiO2) and Monitor Screen (2) with Vinsp in the middle of the screen.
Notice that in this situation the Monitor Screen (2) will show in its superior right corner the number 2
indicating that it is two screens of distance from the Main Screen and the Monitor Screen (3) will
show in its superior right corner the number 3 indicating that it is three screens from the Main
Screen.
e. Selecting Vexp, Vinsp, Freq, FiO2 and Cdyn
The Monitor Screen (1) will show (Vexp, Freq, FiO2) and the Monitor Screen (2) will show the inspired
volume (Vinsp) in the left side and the dynamic compliance (Cdyn) value in the left side of the screen.
f. Selecting Vexp, Vinsp, Freq, FiO2, Cdyn and Pmean
The Monitor Screen (1) will show (Vexp, Freq, FiO2) and the Monitor Screen (2) will show (Vinsp,
Pmean, Cdyn).

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MAGNAMED Ventilator Analyzer - VentMeter P/N: 1901509 –Rev 05
Note
•Attempting to select a seventh parameter to be shown it will not blink, because the
maximum parameters that can be shown is six.
•If this new parameter must be shown, then first deselect one of the parameters and select
this new parameter.
•To observe inspiratory and expiratory cycles watch the lung drawing between the F1 and
F2 key.
•To carry out continuous pressure or flow monitoring observe that the lung between F1
and F2 key will remain static.
Configurations (F1 key from the main screen):
By pressing F1 in the Main Screen it will present a screen with three flow sensors. The blinking flow sensor is
the one selected. To select another flow sensor, use the UP and DOWN keys to reach the new sensor and
press ENTER key to select it. This new sensor will start to blink indicating that it is the one selected.
Battery (F2 key from the Configuration Screen):
By pressing F2 in the configuration screen it is possible to visualize the charging situation and the battery
temperature.
Calibrations (F2 key from the main screen):
By pressing F2 key in the Main Screen it will present the Transducers Calibration Screen. In this screen, by
pressing ENTER key, the transducers will be calibrated. It will present the message: Calibrating… and in this
condition F1 and F2 will be inactive. After the calibration process the message will be cleared and the F1 and
F2 keys will return to the active state.