NIOX FeNO VERO User manual

NIOX VERO® User Manual English
000191-16 May 2023
NIOX VERO® Airway Inflammation Monitor
User Manual

Remember
It is important to adhere to the following specified conditions:
• Ambient temperature: +10°C to +35°C
• Humidity: 20% to 80% RH (non-condensing)
• Mobile phones, cordless phones and gas emitting appliances might
interfere with the instrument and should therefore be kept away from
the instrument. Interference could make it impossible to perform a
measurement.
•Exhaled breath contains water vapour which can condense inside
the instrument. When excessively used in a short period, there is a
risk for condensation of water inside NIOX VERO®.
Normally a maximum of 10 exhalations/hour can be performed with
NIOX VERO® during continuous use. However, it is possible to
perform 20 exhalations in one hour if the instrument is paused for a
minimum of 30 minutes prior to the next session of exhalations.
Exhalations include failed and successful measurements.
• Avoid spilling water or other fluids on the instrument or sensor.
• Always use a closed case or bag (NIOX VERO® bag recommended)
for transportation and storage of NIOX VERO®.
• It is recommended, after inserting a new sensor, to wait for three
hours with the instrument switched on before performing a
measurement.
• Operational life-time for NIOX VERO® Instrument: Maximum 5 years
in use or 15 000 measurements or the expiration date stated on the
device, whichever comes first.
5 years in use shall be defined as starting from the first NO
measurement taken using the device.
• Operational life-time for NIOX VERO® Sensor: Maximum 12 months
after opening package and installed in NIOX VERO® or expiration
date as stated on the sensor, whichever comes first.
WARNING!
Use of substances containing alcohol close to the NIOX VERO®
instrument may cause erroneous measurement results.
DO NOT clean the instrument or handle with alcohol or any spray
or wipe containing alcohol!
Do not use substances containing alcohol on or close to the
NIOX VERO® instrument. This includes any cleaning agents used to
clean the facility, or other equipment in the area, as well as alcohol
wipes or sprays used on patients.
CAUTION!: Do not use NIOX VERO® in the proximity of areas where
volatile substances such as organic fluids or disinfectants are being used.
Special attention should be paid to aerosols and disinfection baths, either
open vessels or ultrasonic baths.

Table of contents
NIOX VERO® User Manual English
000191-16 1
1 Important information ........................................................................... 3
1.1 Before using NIOX VERO® Airway Inflammation Monitor.................. 3
1.2 About this manual.......................................................................................... 3
1.3 Compliance...................................................................................................... 3
1.4 Responsible manufacturer and contacts................................................ 3
1.5 Warnings........................................................................................................... 3
1.6 Intended use ................................................................................................... 4
1.7 Principals of Operation................................................................................. 5
2 Product description .............................................................................. 6
2.1 NIOX VERO® accessories and parts ....................................................... 6
2.2 Instrument ....................................................................................................... 6
3 Installation and set up ......................................................................... 7
4 User interface ........................................................................................11
4.1 Main and settings view................................................................................ 11
4.2 Main View....................................................................................................... 11
4.3 Settings view ................................................................................................ 12
5 Using NIOX VERO® .............................................................................12
5.1 Start the instrument from power save mode ...................................... 12
5.2 Register patient ID (optional)................................................................... 12
5.3 Measure FeNO ............................................................................................ 13
5.4 Demonstration mode................................................................................. 15
5.5 Measure ambient NO................................................................................ 16
5.6 Change settings........................................................................................... 17
5.7 Turn off the instrument............................................................................. 20
6 Using NIOX VERO® with NIOX® Panel ...........................................20
6.1 Warnings ....................................................................................................... 20
6.2 Installation of NIOX® Panel ...................................................................... 21
6.3 Connect to a PC via USB.......................................................................... 21
6.4 Connect to a PC via Bluetooth ............................................................... 21
6.5 Setup.............................................................................................................. 22
6.6 Firmware update ........................................................................................ 23
6.7 Using NIOX® Panel .................................................................................... 24
7 Troubleshooting ..................................................................................25
7.1 Alert codes and actions............................................................................. 25
8 Preventive care ...................................................................................29
8.1 General care ................................................................................................. 29
8.2 Change disposals ...................................................................................... 30
8.3 Operational life-time.................................................................................. 32
8.4 Disposal of instrument and accessories............................................. 32
8.5 Return shipments ....................................................................................... 32
9 Safety information ..............................................................................33
9.1 Warnings ........................................................................................................ 33
9.2 Cautions ........................................................................................................ 33
9.3 Substances disturbing FeNO measurement..................................... 33
9.4 Electromagnetic immunity....................................................................... 34
9.5 Electromagnetic emissions..................................................................... 34
9.6 Operating conditions ................................................................................ 34
9.7 Information Security................................................................................... 35
10 Reference information .....................................................................36
10.1 Buttons and descriptions ........................................................................ 36
10.2 Symbols and descriptions ..................................................................... 36

Table of contents
NIOX VERO® User Manual English
2 000191-16
10.3 Symbol explanation ................................................................................. 37
11 Technical data ....................................................................................38
11.1 Dimensions and weight ............................................................................ 38
11.2 Electrical data ............................................................................................. 38
11.3 Noise level ................................................................................................... 38
11.4 Exhaled NO - performance data........................................................... 38
11.5 Linearity ........................................................................................................ 38
11.6 Precision....................................................................................................... 38
11.7 Accuracy....................................................................................................... 38
11.8 Method comparison.................................................................................. 38
11.9 Inhalation parameters .............................................................................. 38
11.10 Exhalation parameters............................................................................ 39
11.11 Essential performance............................................................................. 39
11.12 Memory capacity...................................................................................... 39
11.13 Patient filter ................................................................................................ 39
11.14 Bluetooth..................................................................................................... 39
11.15 Rechargeable battery capacity ........................................................... 39
11.16 Instructions for transport and storage ............................................... 40
12 NIOX VERO® parts and accessories ...............................................41
12.1 Parts included in NIOX VERO® package
(Article No. 12-1100)............................................................................................ 41
12.2 Accessories................................................................................................. 41
13 Vigilance .............................................................................................42
14 Revision History ................................................................................43

Chapter 1 Important information
000191-16 NIOX VERO® User Manual English 3
1 Important information
1.1 Before using NIOX VERO® Airway Inflammation
Monitor
NIOX VERO® may only be operated as directed in this manual by trained
healthcare professionals. Trained status is achieved only after careful reading
of this manual. Read the entire instructions for use and make certain that you
fully understand the safety information.
1.2 About this manual
NIOX VERO® User Manual-item number 000191, version 16, was released
May 2023. The software version number installed in the instrument can be
found by viewing the settings. For instructions on how to view the software
version number installed in the instrument, see section 5.6.5, View instrument
information.
Information in this document is subject to change. Amendments will be made
by Circassia as they occur. The User Manual provides instructions on how to
operate NIOX VERO®. It contains numbered step-by-step instructions with
screens and illustrations. Choices within steps are displayed with bullet points.
1.3 Compliance
NIOX VERO® is CE-marked according to In Vitro Diagnostics Directive
98/79/EC.
NIOX VERO® is RoHS compliant.
1.4 Responsible manufacturer and contacts
Mailing address:
Circassia AB
P.O. Box 3006
SE-750 03 Uppsala, Sweden
Visiting Address:
Hansellisgatan 13
SE-754 50 Uppsala
www.niox.com
1.5 Warnings
• Do not use substances containing alcohol on or close to the
NIOX VERO® instrument. This includes any cleaning agents used to
clean the facility, or other equipment in the area, as well as alcohol wipes
or sprays used on patients.
• NIOX VERO® should only be operated by healthcare professionals.
• Operate NIOX VERO® as stated in this manual. Circassia accepts no
responsibility for damaged equipment or faulty results, if the equipment is
not handled according to this manual.
• NIOX VERO® can be operated with two different exhalation times,
10 seconds and 6 seconds. Incorrect use of the 6 second exhalation mode
may result in falsely low FeNO values, which can lead to incorrect clinical
decisions.
Symbol Description
WARNING Indicates a potentially hazardous situation that, if not
avoided, can result in bodily harm or injury.
CAUTION Indicates a potentially hazardous situation that, if not
avoided, can damage a product or system, cause loss of
data or harm to business.
Note Alerts the reader to important information on the proper
use of the product, user expectations, error situations,
and actions related to these.

Chapter 1 Important information
4 000191-16 NIOX VERO® User Manual English
• When selecting an accessory for your NIOX VERO® product keep in mind
that an accessory not recommended by Circassia may result in loss of
performance, damage to your NIOX VERO® product, fire, electric shock,
injury or damage to other property. The product warranty does not cover
product failure or damage resulting from use with non approved
accessories. Circassia takes no responsibility for health and safety
problems or other problems caused by the use of accessories not
approved by Circassia.
• NIOX VERO® should not be used adjacent to or stacked with other
electronic equipment.
• Only use the power supply provided. Pull the plug when disconnecting
NIOX VERO® from the power outlet.
• Use only the breathing handle supplied by Circassia.
• No modification of NIOX VERO® instrument, handle or sensor is allowed.
• Do not drop the instrument or subject it to strong impact.
• Do not use a damaged NIOX VERO® instrument or damaged
components.
• Keep the instrument and sensor out of water. Ensure that no liquid is
spilled or dropped on the instrument or sensor.
• Do not heat or dispose of the instrument or sensor in fire. Refer to section
8.4, Disposal of instrument and accessories.
• NIOX VERO® and the NO scrubber in the breathing handle contains
potassium permanganate. Used or expired instruments and breathing
handles should be disposed of as hazardous waste in accordance with
local waste disposal regulations.
• The breathing handle must not be used after expiration date.
• Patient filters should be used immediately after opening.
• NIOX VERO® Sensor contains chemicals that could be harmful if
swallowed.
• Be careful when opening the sensor can. The inside of the opening may
have sharp edges.
• Do not touch or clean the white sensor membrane.
• After inserting a new sensor it is recommended to wait for three hours
with the instrument switched on before performing a measurement.
• Make sure to use the correct measurement mode, otherwise incorrect
FeNO results might be obtained.
• Patient filters are labeled for single use only. Always use a new patient
filter for each patient. Reuse between patients could increase the risk of
cross-contamination or cross-infection. The same filter can be reused in
one patient for multiple attempts in the same session.
• Do not use NIOX VERO® in the proximity of areas where volatile
substances such as organic fluids or disinfectants are being used. Special
attention should be paid to aerosols and disinfection baths, either open
vessels or ultrasonic baths. Do not use the instrument in the presence of
flammable anesthetic, vapors or liquids.
1.6 Intended use
NIOX VERO® measures Nitric Oxide in human breath (Fractional exhaled
Nitric Oxide, FeNO) and Nasal Nitric Oxide (nNO) in the aspirated air from the
nasal cavity. NIOX VERO® is for use only as an In Vitro Diagnostic Device (IVD)
and intended for near patient testing.
FeNO
FeNO is increased in some airway inflammatory processes such as asthma
and decreases in response to anti-inflammatory treatment. FeNO
measurement with NIOX VERO® is quantitative, non-invasive, simple, safe
and is used as part of assessment, and monitoring of patients with these
conditions. NIOX VERO® is suitable for patients age 4 and above for FeNO
measurements.
As measurement requires patient cooperation, some children below the age
of 7 may require additional coaching and encouragement. NIOX VERO®
should be used as directed in the NIOX VERO® User Manual.

Chapter 1 Important information
000191-16 NIOX VERO® User Manual English 5
NIOX VERO® for FeNO measurement can be operated with two different
exhalation times, 10 seconds and 6 seconds. The 10 second test is the
preferred mode. For children who are not able to perform the 10 second test,
the 6 second test is an alternative. The 6 second test should be used with
caution in patients over the age of 10 years. It should not be used in adult
patients.
nNO
Nasal Nitric Oxide has been shown to be decreased in patients with Primary
Ciliary Dyskinesia (PCD). Measurement of nNO is a screening tool that can
assist in the identification of cases of PCD according to ERS guidelines1.
Measurement of nNO with the NIOX VERO® Nasal Measurement Mode is non-
invasive, simple, safe and repeatable in patients age 5 and above when
measured according to the NIOX VERO® Nasal Measurement Mode User
Manual. Suspected cases of PCD following screening with nNO should be
confirmed according to published recommendations for PCD diagnosis and
management.
1. Lucas JS, Barbato A, Collins SA, et al. European Respiratory Society guidelines
for the diagnosis of primary ciliary dyskinesia. Eur Respir J 2017; 49: 1601090.
1.7 Principals of Operation
NIOX VERO® is a small, portable system for the non-invasive, quantitative
measurement of the fractional nitric oxide (NO) concentration in expired
human breath (FeNO), a marker of airway inflammation and Nasal Nitric Oxide
(nNO) in the aspirated air from the nasal cavity as a screening tool to assist in
the identification of Primary Ciliary Dyskinesia.
The NIOX VERO® hand-held device includes a sampling and gas conditioning
system and a man-machine interface (MMI). The user is guided through the
breathing maneuver with the built-in touch-screen display by use of an
interactive MMI. The valves and pumps of the instrument are automatically
controlled to manage the inhaled sample appropriately via the instrument
electronics and software program. Filtering of inhaled air eliminates
contamination from ambient NO levels.
A built-in flow control keeps exhalation at 50 ml/s so that it is standardized for
all patients. Results are processed using dedicated software and are
expressed as Nitric Oxide concentration in parts per billion (ppb).
Each NIOX VERO® sensor is individually calibrated during manufacture. The
sensor maintains its calibration during the sensor lifetime, no additional
calibration is needed by the user. The device requires no maintenance or
scheduled servicing.
There are international and country specific guidelines on the interpretation of
results. For FeNO, the most commonly used is the American Thoracic Society
guidelines: Dweik RA, Boggs PB, Erzurum SC, et al. Interpretation of exhaled
nitric oxide levels (FeNO) for clinical applications: an official ATS clinical
practice guideline, 2011. Am J Respir Crit Care Med. 2011; 184: 602-615.

Chapter 2 Product description
6 000191-16 NIOX VERO® User Manual English
2 Product description
2.1 NIOX VERO® accessories and parts
(A) Breathing handle and handle cap, (B) Sensor (supplied separately),
(C) Instrument (including stand), (D) Rechargeable battery,
(E) NIOX Panel USB memory stick, (F) USB cable, (G) Power adapter and
power cord, (H) Patient filter (supplied separately)
Note: Only accessories and parts supplied by Circassia may be used.
2.2 Instrument
(H) ON/OFF button, (I) Power adapter port, (J) USB port
(K) Battery LED - lit when battery is charging, (L) Standby LED - blinking in
Standby/Sleep mode, (M) Touch panel Display

Chapter 3 Installation and set up
000191-16 NIOX VERO® User Manual English 7
(N) Breathing handle holder, (O) Breathing handle port
3 Installation and set up
Open the package with care. Prior to installation, check that the package
contains all the parts (see section 2.1). A screwdriver is required for opening
the compartment lid and installation of sensor and battery. Remove the plastic
film from the display.
1. Carefully place the instrument with the display facing down on a flat and
clean surface, then unscrew and remove the compartment lid. There is a
taper on the side of the lid for better grip when opening.
2. Open the sensor can.

Chapter 3 Installation and set up
8 000191-16 NIOX VERO® User Manual English
WARNING! Open the sensor can with care. The inside of the opening may
have sharp edges.
3. Open the sensor package.
WARNING! Do not touch or clean the white sensor membrane.
CAUTION! The sensor should only be stored in its original unopened package
or installed in a NIOX VERO® instrument.
4. Insert the sensor and turn the swivel clockwise until locked.
5. Open the battery package.
Note: Only use the correct rechargeable battery supplied by Circassia.
(Type No BJ-G510039AA, Article No 12-1150)
6. Insert the rechargeable battery and replace the lid. Tighten the screw by
using a screwdriver.
7. Take the breathing handle tube and push the end of the tube into the
breathing handle port slowly until the triangle is no longer visible.
The breathing handle and the patient filter are Applied parts Type B.

Chapter 3 Installation and set up
000191-16 NIOX VERO® User Manual English 9
Note: Only attach the breathing handle supplied by Circassia.
Article No 12-1010
Note: Use care not to bend the handle tube.
Note: The triangle should not be visible when assembled correctly.
8. Attach the power adapter to the instrument and then to the power outlet.
When installing the unit, either use a socket outlet with a readily accessible
power switch, or connect the AC cord plug to an easily accessible socket
outlet near the equipment. If a fault should occur during operation of the
unit, use the power switch to cut the power supply, or remove the AC cord
plug.
Note: Only use the power adapter supplied by Circassia with the
instrument. Article No 12-1120.
9. Position the instrument with the stand folded out.
10. Start the instrument by sliding the ON/OFF button to ON and allow the
instrument to start up and perform the internal check and measurement
procedures.

Chapter 3 Installation and set up
10 000191-16 NIOX VERO® User Manual English
CAUTION! After inserting a new sensor it is recommended to wait for three
hours with the instrument switched on before performing a measurement.
11. When the internal check is completed, the main menu appears.
12. Select the Settings button on the main menu.
13. Select Time and date.
This opens the time and date setting view.
14. Select between 12h US and 24h ISO time and date
format.
15. Set time by pressing the button for hour. It changes
color to blue. Change the value to the current hour
by pressing the increase or decrease buttons.
Repeat this procedure for minute, year, month and
day.
16. Select OK to accept the changes and return to the main menu.
The Undo button closes the view without saving any changes.
17. Select the Settings button on the main menu.
18. Select the Breathing handle button. This opens the Breathing
handle view.
19. Select the Reset Breathing handle button. The breathing
handle information view opens to confirm insertion of the
breathing handle.
20. Select the OK button to confirm insertion of a new breathing
handle. This sets the remaining measurements to 1000 and expiry
date one year from the current date.
The Return button returns to Settings view without registering
change.

Chapter 4 User interface
000191-16 NIOX VERO® User Manual English 11
4 User interface
4.1 Main and settings view
This section describes the main view, settings view, menus and symbols.
Buttons and symbols are further described in section 10.
4.2 Main View
(A) Status bar, (B) Instructive demonstration, (C) Patient ID, (D) Main menu,
(E) Start measurement button
4.2.1 Main menu
(a) Measurement mode 10s/6s (only shown when 6s is an option, for more
information see section 5.6.7, Enable/disable 6 second (6s) measurement
mode, (b) Demo, (c) Patient ID entry, (d) Settings
4.2.2 Status bar
(e) Battery status, (f) Bluetooth enabled (in this position a USB connection may
be indicated instead ), (g) Breathing handle has expired or is about to
expire - blinking symbol, (h) Instrument has expired or is about to expire -
blinking symbol, (i) Sound disabled, (j) Sensor status and number of remaining
measurements, (k) Temperature outside of specification, (l) Humidity outside
of specification, (m) Time

Chapter 5 Using NIOX VERO®
12 000191-16 NIOX VERO® User Manual English
4.3 Settings view
(A) Modes configuration - see section 5.6.6,
(B) Volume settings - see section 5.6.2, (C) Alert log - see section 5.6.4,
(D) Instrument & Sensor info - see section 5.6.5, (E) Time and date settings -
see section 5.6.1, (F) Measurement log - see section 5.6.3, (G) Ambient
measurement - see section 5.5, (H) Breathing handle status and settings -
see section 8.2, (I) Return to main view
5 Using NIOX VERO®
5.1 Start the instrument from power save mode
If NIOX VERO® is in standby or sleep mode simply touch the display to
activate it.
5.2 Register patient ID (optional)
Note: If Patient ID is used, it must be entered before each measurement,
even if it is the same patient. Local Regulations on Patient
information privacy must be considered when using unique patient
identifiers.
1. Select the Register patient ID button from the main menu.

Chapter 5 Using NIOX VERO®
000191-16 NIOX VERO® User Manual English 13
2. Enter up to 12 characters (alpha or numeric).
3. Select the ABC-button to activate a keyboard with the alphabet.
The 123-button changes view back to the numerical keyboard.
4. Select OK button to confirm the registration.
Use the Erase button to erase.
Use the Undo button to undo a registration.
5.3 Measure FeNO
Verify proper preparations before performing a measurement with
NIOX VERO®. A basic preventive inspection is recommended before each use
(see section 8.1.1).
WARNING! Always use a new patient filter for each patient. Reuse between
patients could increase the risk of cross-contamination or cross-infection. The
same filter can be reused in one patient for multiple attempts in the same
session.
5.3.1 Preparation for measurement
1. Lift the breathing handle from the holder and remove the handle cap.
2. Obtain a new patient filter. Attach the patient filter to the breathing handle.
Make sure to twist the patient filter in place until it clicks into place.
Note: Store the patient filters in the
original box prior to use.
Note: Do NOT use sharp objects to
open the patient filter
packaging. Do not touch the
filter membrane.
Note: Patient filters should be used
immediately after opening.
Note: There is a risk of leakage if the
filter is not correctly attached to the breathing handle and this may
result in incorrect measurement values.
Note: Do not switch OFF the instrument during measurement procedure.
3. Give the breathing handle to the patient and guide the patient to provide
a breath sample as described in the next section.

Chapter 5 Using NIOX VERO®
14 000191-16 NIOX VERO® User Manual English
5.3.2 Measurement
1. Empty the lungs by breathing out thoroughly.
2. Close the lips around the mouthpiece on the patient filter so that no air
leakage occurs.
3. Inhale deeply through the patient filter to total lung capacity. During
inhalation, the cloud on the display moves upwards.
Note: The procedure is activated by inhaling air from the handle or by
pressing the start measurement button.
4. Exhale slowly through the filter while keeping the cloud within the limits
as indicated on the display (the white lines).
5. The instrument display and audio signals guide the user to the correct
exhalation pressure.
A continuous sound indicates correct pressure with a frequency proportional
to the pressure.
An intermittent high frequency sound - too strong pressure
An intermittent low frequency sound - too weak pressure
Exhalation with:
Pressure correct Pressure too strong Pressure too weak

Chapter 5 Using NIOX VERO®
000191-16 NIOX VERO® User Manual English 15
6. Exhale until the cloud has passed the flag.
7. The instrument will analyse the sample and generate a result in
approximately one minute.
Note: Do not exhale or inhale through the patient filter during the analysis
process.
8. The result is then displayed: (A) Patient ID - if applicable, (B) FeNO value in
ppb (parts per billion), (C) Measurement mode 10s/6s,
(D) Measurement sequence number, (E) OK - returns to main view.
5.3.3 Perform 6s NO measurement
• NIOX VERO® can be operated with two different exhalation times,
10 seconds and 6 seconds. The 10 second test is the preferred mode. For
children who are not able to perform the 10 second test, the 6 second test
is an alternative.
• The 6 second test should be used with caution in patients over the age of
10 years. It should not be used in adult patients.
WARNING! Incorrect use of the 6s exhalation mode may result in falsely low
FeNO values, which can lead to incorrect clinical decisions.
6 second measurement mode is not activated by default, refer to
section 5.6.7, Enable/disable 6 second (6s) measurement mode.
1. Change to 6s Measurement mode by selecting the 10s button
(green man symbol) on the main menu.
2. The button changes to 6s measurement mode (orange, small
child symbol).
3. The 6s measurement mode is illustrated with an orange start
button.
4. Perform measurement as instructed in section 5.3.2,
Measurement.
5. Wait for the result.
6. The result screen displays the icon for 6s measurement.
Note: The device will always return to the default 10s mode after a
6s measurement.
5.4 Demonstration mode
To help professionals in guiding patients, the instrument contains three
animated demonstrations with visual and audio guides of the different stages
of a measurement procedure.

Chapter 5 Using NIOX VERO®
16 000191-16 NIOX VERO® User Manual English
1. Select the Animation button on the main menu.
2. Select which animation to use (Cloud, Balloon or Meter)
3. Select the Demo button.
4. Select the Forward button to move to the following sequence.
5. The Undo button closes the demonstration and returns to animation
select.
6. Select OK button to confirm the changes
7. The Undo button returns to the main menu without saving changes.
5.5 Measure ambient NO
Note: An ambient measurement may be requested by technical support
during troubleshooting.
Note: An ambient measurement is counted as one measurement on
NIOX VERO® Sensor and the instrument.
1. Attach a patient filter to the breathing handle until it clicks into place.
a. Inhalation
through the
breathing
handle.
b. Exhalation
through the
breathing
handle with
correct
pressure.
c. Exhalation
through the
breathing
handle with
pressure too
weak.
d. Exhalation
through the
breathing
handle with
pressure too
strong.

Chapter 5 Using NIOX VERO®
000191-16 NIOX VERO® User Manual English 17
2. Select the Settings button on the main menu.
3. Select Ambient Measurement button.
4. Select the Start measurement button.
5. The progress bar is visible until the measurement is finished and the result
is displayed: Ambient measurement value (in ppb), measurement mode
and measurement sequence number.
5.6 Change settings
5.6.1 Change time and date
1. Select the Settings button on the main menu.
2. Select the Time and Date button.
For more details refer to section 3.
5.6.2 Change sound volume
1. Select the Settings button on the main menu.
2. Select the Sound button.
3. The settings for sound and volume opens.
4. Select Decrease/Increase to adjust volume.
5. The volume bar indicates the set volume.
6. Select the OK button to save settings and return to the settings view.
The Undo button closes the view without saving changes.
7. The status bar indicates mute status when the sound volume is set
to zero.
5.6.3 View measurement logs
All measurement results are stored in the instrument and can be viewed at any
time.
1. Select the Settings button on the main menu.
2. Select Patient Measurements log view button.

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18 000191-16 NIOX VERO® User Manual English
3. The selected log will display the following:
(A) Patient ID - if defined, (B) FeNO value, (C) Measurement date and time,
(D) Measurement mode 10s/6s, (E) Measurement sequence number,
(F) Return to settings (G) Backward, (H) Forward
4. Browse through the measurement logs using the Backward and Forward
buttons.
5. Select the Return button to return to settings.
5.6.4 View alert logs
Alerts are stored in the instrument and can be viewed at any time. The alert
codes are for Circassia Technical Support use.
1. Select the Settings button on the main menu.
2. Select Alert log button.
(A) Alert code (for technical support purpose only), (B) Date and time of alert,
(C) Scroll list (blue) (D) Return - returns to previous view, (E) Backward
(F) Forward
3. Select the Return button to return to settings.
5.6.5 View instrument information
Detailed information about the instrument and sensor can be viewed.
1. Select the Settings button on the main menu.
2. Select the Instrument button.