VARON NT-02 High Performance 5L Portable Oxygen Concentrator User Manual

: May 14, 2024
: VARON

Table of Contents

VARON NT-02 High Performance 5L Portable Oxygen Concentrator User Manual
1. Working Principle
2. Product Applications
3. Product Structure
1. Check After Unpacking
2. Product Appearance
Buttons and functions
Contents displayed on the screen
Use Guidance
Use with an AC adapter (optional
Connect the disposable oxygen inhaler (optional accessory)
Start to use
How to charge the batteries
If you need to stop supplying oxygen during use, long press “Power”
Battery Charging
Guidance for Use in Electromagnetic Environment
Non-professional personnel shall not disassemble the oxygen concentrator.
Clean the Shell
Clean the Disposable Oxygen Inhaler
Replace the Air Intake Filter Pad
Battery Maintenance
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VARON NT-02 High Performance 5L Portable Oxygen Concentrator User Manual

Safety Precautions

In case of a possible power failure or equipment failure, users who are in urgent need of oxygen must be equipped with other standby oxygen supply devices (such as oxygen cylinders, oxygen bags, ). Note that this product
cannot be used for life support or life extension! Not suitable for newborns or infants!
The product is only used for oxygen supplement at high altitude or in low- oxygen environments and cannot replace medical
Oxygen supports combustion. Thus smoking is prohibited when the equipment is working!
**** Do not use the equipment in high temperatures, or when there are sparks or open flames in the environment!
**** To prevent accidents, do not let children operate the equipment alone. When breathing oxygen, do not wrap the hose around the neck; The elderly with mobility difficulties must be accompanied by a guardian during use.
This product separates and purifies oxygen directly from the air for breathing. Therefore, please do not use it in the environment containing oil smoke, toxic and harmful gases.
This product cannot be connected with other equipment not allowed by the
If any accessories are damaged or lost, please contact the equipment supplier.
It is prohibited to use lithium batteries that are not equipped with the product.
When the battery is not in use, please protect the interfaces on the battery and on the device. Do not contact them with the conductor or touch them directly with hands.
Remove the battery before the equipment is discarded and contact the relevant departments to properly dispose of the equipment and accessories according to the relevant regulations of the local government.

Product Introduction

1. Working Principle

This product is powered by DC12V power supply or battery. Equipped with a pure copper oil-free compressor and a high-quality French molecular sieve, it uses air as raw material to produce high-purity oxygen through a new Pressure Swing Adsorption method (PSA) at room temperature. This is a totally physical method which is stable, safe and reliable

2. Product Applications

Only for health care, and cosmetic oxygen therapy. not suitable for medical use.

3. Product Structure

▶ Full plastic shell, safe and reliable;
▶ Comes with a removable battery pack, easy to install and replace;
▶ Small in volume and light in weight, the product can be easily carried around;
▶ The product has a function of accumulating use time, so you can keep track of how long the machine has been used;
▶ Low oxygen concentration alarm function lets the user know oxygen production status in real time

Technical Parameters

.Model ：NT-2

2 . P ow e r supply ：DC12～16.8V AC100～240V 50/60Hz

Power ：68W
Battery capacity ：92Wh/6.4Ah
Flo w gear ：1～5gear (the flow is highest at 5 th gear)
Oxygen concentration ：93%±3
Noise level ：≤58dB(A) (noise value at the highest gear)

8. D i me n s ion s ：18.29.125.7cm/7.163.5810.12’’ 9. Ne t w e igh t ：2.2kg

10. E l ectr i ca l classification ：Class II 1 1. O xy g e n supply mode ：pulse oxygen supply 12. N o rma l working environment ：
Ambient temperature range: 10℃～35℃;
Relative humidity range: 30%～75%;
Atmospheric pressure range: 860hPa～1060hPa;
Note: When the storage and transportation temperature is lower than 5℃ , the equipment should be stored at normal operating temperature for more than 4 hours before using.
13.Storage and transportation environment： Ambient temperature range: -20℃～60℃;
Re l at i v e hu m idi t y ra ng e : 10%～93%, and there is no frost phenomenon in the environment;
Atmospheric pressure range: 700hPa～1060hPa
Note ： The oxygen generator should be stored in a well-ventilated room without strong sunlight, or corrosive gas inside. Avoid severe shock or turning the product upside-down during transportation.

Installation and Use

1. Check After Unpacking

Before installing and operating the product, please check whether the appearance of the product is intact, and whether the numbers of accessories are consistent with the packing list in the manual. In case of any defects, please contact the seller or manufacturer promptly

2. Product Appearance

Note: It is normal that there is hot air discharged out of the heat dissipation vents. Ensure smooth air flow of the air inlet and the outlet

Installation and Use

Recommended Method For Battery Removal

Note: Users shall not remove the battery without permission. If necessary, the product needs to be returned to the distributor or ask for a professional to dispose of.

Panel Operation Introduction

Buttons and functions

Power button: To start and stop the machine. Long press the button for 3 seconds, the digital screen and battery indicators will light up; then short press the button, the machine will start to In the working state, short press the power

button, the machine will stop working; then press and hold for 3 seconds to turn off the digital screen and battery indicators.

▶ Grade: To adjust oxygen flow rate;
▶ Time: To set the duration of each use. Adjustable from 0~240 minutes;

Contents displayed on the screen

▶ Accumulated hours: Shows how long the device has been working (unit: hours)
▶ Timing/Min: Countdown of preset working time. Displays how much time is left before the device automatically shuts down (unit: hours)

Note:The screen shows either the accumulated time or the timing. Accumulating time is displayed by default and it will be switched to timing function when you press the “Timing/Min” button. If no other operation is performed, it will automatically switch back to display the accumulated hours after 10 seconds
▶ Level: Oxygen flow rate setting. 5 gears in total and the flow is highest at 5 th gear.

Gear	1	2	3	4	5
Single pulse oxygen flow rate (ml)	15	20	30	40	50

The allowed error is ± 20%.

▶ Battery indicators: Shows the current battery capacity, which is calculated based on the real-time voltage value and may deviate from the actual For reference only.
There are 4 battery indicators on the operation panel:

▶ Alarm light & breath signal light
Alarm light: Red or yellow light will be on and there will be alarm codes shown on the screen when the device is operating abnormally.
F0001—- Low Battery Warning (yellow light on)
F0002—- No Breath Detected (yellow light on)
F0006—- Oxygen Concentration Below 82% (yellow light on)
F0007—- Oxygen Concentration Below 50% (yellow light on with an alarm)
F0011—- High Temperature (red light on with an alarm)
F0012—- Oxygen Sensor Abnormality (with an alarm)
Breath signal light: This light flashes when the user’s breathing is detected during the operation of the device, and the device automatically starts the pulse oxygen supply.

Use Guidance

Connect the power supply

Select the appropriate power connection method according to the use environment.
Use with built-in battery only
The device has a built-in battery installed by default. It can be turned on if there is sufficient battery capacity.
Use with an on-board power cord in the car

Connect the input end of the car power cable to the car cigarette lighter, and the output end to the charging port of the oxygen concentrator. If the red light on the car power cord lights up, it means that the power supply is connected properly.
Required input: DC12~16.8V/5A.

Use with an AC adapter (optional

Connect the AC adapter to an AC power cord firmly, plug it to the socket, and then connect its output end to the oxygen device. Red indicator on the AC adapter indicates good power connection and the battery is charging normally. The indicator will turn green after the battery is fully charged.
Required input: AC100~240V 50/60Hz.

Connect the disposable oxygen inhaler (optional accessory)

Securely connect the flared end of the disposable oxygen inhaler tube to the oxygen outlet of the device and wear the other end as shown below

Wear the disposable oxygen inhaler as shown on the left, adjust the nasal cannula to the appropriate position, and push the fixing ring up to fix it after wearing.

Note that the tube of the disposable oxygen inhaler should not be kinked or blocked, so as not to cause the equipment to alarm or to affect normal use.
If you need to purchase an oxygen inhaler, please contact the equipment provider or professional medical staff .

Start to use

Press the “Power” button to start the machine. Select a suitable gear by pressing the gear button, and wear a disposable oxygen inhaler appropriately to start inhaling oxygen.
Oxygen supply mode of the equipment is pulse oxygen supply with a built-in breathing sensor. When the user inhales, the machine will automatically release oxygen, while the “breath signal” light will flash; the machine will stop releasing oxygen when the user does not inhale.
When the user does not inhale for more than 10 seconds, the machine will switch to active oxygen supply mode, releasing oxygen at a frequency of about once every 3 seconds until the machine re-detects the user’s breathing signal, that is, the original oxygen supply mode will be restored.

How to charge the batteries

①As shown in Figure 7, connect the AC adapter to charge the battery;
② Remove the battery according to the method shown in Figure 3, and then connect it to an AC adapter according to Figure 7 to charge.

If you need to stop supplying oxygen during use, long press “Power”

button for 3 seconds to shut down.

After use, unplug the disposable oxygen inhaler from the oxygen outlet of the device, then unplug the power cord from the device, and finally cut off the power supply.

Battery Charging

Due to transportation control and other reasons, the device’s battery only has enough power for testing or has no power at all when it leaves the factory. Therefore, before the first use, the device needs to be charged;
The battery will only be charged when using the AC adapter; If the car power cord is used, it can only supply power to the the device, and cannot charge the battery;
This device does not support the use of external battery packs;
The AC adapter and the car power cord will share the same power outlet, so they cannot be used at the same time;
When the battery of the device is less than 25%, the power indicator will Please connect the power adapter or charger to power the device in time;
When the device is not working, the battery in the device is fully charged for about 4-8 The full charge time is extended to 9 hours when the device is working.
When using the car power cord in the car, please turn on the engine of the car, and do not use the device when the engine is turned off to prevent the battery in the car from losing Only the on-board power cord dedicated to this device can be used.

Guidance for Use in Electromagnetic Environment

In order to prevent this machine from being interfered with by the strong electromagnetic environment or interfering with other electrical products, please keep the product at least 30cm apart from other household appliances during use.

Non-professional personnel shall not disassemble the oxygen concentrator.

If the professional maintenance personnel needs the electrical schematic diagram of the product, please contact the manufacturer or the after-sales service.

Use and Purchase of Disposable Oxygen Inhaler

Working mode of this equipment is pulse oxygen supply To use this equipment, please connect it to an oxygen inhaler.
For the oxygen concentrator to correctly detect breathing and deliver pulsed oxygen, make sure that the disposable oxygen inhaler is installed correctly and that the tubes of the oxygen inhaler are not kinked or

Do not use an oxygen inhaler that is not suitable for this device. Please purchase an appropriate oxygen inhaler under the guidance of the equipment provider or professional medical staff to ensure the normal operation of the equipment and the normal use of the user.

Clean the Shell

The outside of the machine should be wiped clean at least once a month. Cut off the power supply and then wipe it with a slightly damp cotton cloth or sponge. Be careful not to seep liquid into the cracks of the chassis.
After cleaning, place the machine in a ventilated place for about 2 hours, and wait until the surface is completely dried before using.

Clean the Disposable Oxygen Inhaler

The oxygen inhaler should be cleaned once a week, and the nasal cannula on it should be cleaned after each use.
Soak the inhaler into vinegar for about 5 minutes, and then rinse with clean water, or wipe with medical alcohol. It is recommended that the oxygen inhaler be replaced every 2 months of use. (Note: The inside of the oxygen inhaler tube should be kept dry.)

Replace the Air Intake Filter Pad

The main function of the intake filter pad is to filter and adsorb dust and impurities in the air, which may cause a blockage after a long period of use, and thus affecting the oxygen production effect of the machine. Therefore, it is recommended to replace it every six months; and if the environment is dusty, replacing it once a quarter is recommended.
Note that the filter pad can not be washed and reused, otherwise it will affect the performance and life of the machine!
Replacement method: Remove the battery according to the method shown in Figure 3, lay the machine flat, and remove the two silicone stoppers as shown in Figure 8. You will see the round air intake filter pad inside. Take it out with tweezers, put in the new pad, and finally put the silicone stopper back in place.

Battery Maintenance

If the machine is not used for a long time, it is necessary to charge it every three months to avoid deterioration of battery performance due to long-term low power or non-use. For each charge, charge to 25%-50% will be fine.
This operation is not required if the product is in normal use

Problems and Solutions

Malfunctions	Problems	Solutions

The machine cannot be started.

| Battery is exhausted| Connect the adapter to charge the battery
Poor connection of the power cord| Check power connection
The battery was installed incorrectly| Reinstall the battery correctly
The machine broke down| Contact the seller

No oxygen output

| Tube of the oxygeninhaler is knotted or blocked| Replace it with a new oxygen inhaler
The oxygen inhaler is not tightly connected to the equipment, causing air leakage| ****

Reinstall the inhaler correctly

The machine broke down| Contact the seller

There is an odor in the oxygen

| The oxygen inhaler has not been cleaned for a long time, resulting in dirt in the tube| ****

Clean or replace in time

There will be a slight smell of disinfection in the initial use of the product, which is a normal phenomenon| ****

The smell will disappear automatically after a few days of use

The molecular tower inside the machine is blocked| Contact the seller
Regular and slight sound inside the machine| The nitrogen emission sound produced by the machine during oxygen production| This is the normal sound of the machine as it works to produce oxygen and expel nitrogen

Packing List

No.

| ****

Item

| ****

Number

| ****

Note

---|---|---|---

1

| ****

Oxygen Concentrator