VARON NT-04 - User Manual

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Oxygen Concentrator

Instruction manual

Model :NT-04

Please read the instruction manual carefully before using the product.

The picture is for reference only.Please refer to the actual product！

Main Page

Questions and Answers

N
Nicholas StevensAug 5, 2025
What to do if my VARON NT-04 Medical Equipment makes abnormal working sound?
- T
  Troy GutierrezAug 5, 2025
  If your VARON Medical Equipment exhibits an abnormal working sound after powering on, it could be due to several reasons. First, it might be a compressor failure, in which case you should disconnect the power supply and have it repaired by professional maintenance personnel. Secondly, the ambient temperature may be too high, activating the self-protection program of the oil-free compressor. This is normal, and the machine will restart automatically when the temperature lowers. Finally, the connecting tube inside the machine might be disconnected or broken, requiring you to disconnect the power supply and seek professional maintenance.
H
Henry HowardAug 19, 2025
Why is the flow rate small on my VARON NT-04?
- D
  Danielle LiuAug 19, 2025
  If your VARON Medical Equipment has a small flow rate after starting, it could be due to a few reasons. The flow rate level might be set too low, so try turning it up. Alternatively, the tube might be twisted or blocked, in which case you should straighten it. Finally, the connecting tube inside the machine could be disconnected or broken, requiring you to disconnect the power supply and have it repaired by professional maintenance personnel.

Summary

1. Precautions

Safety Warnings and Symbols

Explains the meaning of warning signs used on the product.

General Operational Safety

Lists essential safety instructions for operating the machine indoors and safely.

2. Working Principle

Oxygen Generation Process

Describes how air is filtered, compressed, and separated to produce oxygen.

Schematic Diagram

Illustrates the functional components and airflow of the oxygen machine.

3. Product Description

Key Features and Benefits

Highlights product characteristics like LED display, intelligent chips, and portability.

4. List of Attachments

Included Accessories

Lists all items included in the product package for user verification.

5. Technical Specifications

Operating and Storage Conditions

Details normal working and storage environmental requirements for the machine.

6. External View

Product Components and Labels

Identifies and labels all external parts and controls of the oxygen concentrator.

7. Operation Steps

Connecting Power and Oxygen Tube

Guides users on connecting the power cord and oxygen inhalation tube to the machine.

8. Instructions for the Panel

Display Indicators

Explains the information shown on the LED display, including oxygen concentration and timing.

Control Panel Buttons

Details the operation of the ON/OFF and Flow buttons on the control panel.

9. Instructions for the Remote Control

Remote Control Functions

Details remote buttons and sleep mode.

10. Specific Functions

Power Saving, Sleep, and Timing Features

Covers energy saving, sleep modes, and cumulative timing functions.

Self-Check and SOS Assistance

Explains the self-diagnosis capability and SOS voice feature.

11. Maintenance and Repair

Exterior Cleaning and Filter Maintenance

Provides instructions for cleaning the casing and maintaining the air filter.

12. Trouble Shooting

Air Odor and Machine Noise Issues

Addresses common issues like air odor and machine noise and their solutions.

Flow Rate and Operation Problems

Provides solutions for low flow rate and abnormal machine operation.

13. Other Matters

Product Information and Disclaimers

Covers production date, service life, waste disposal, and other general information.

VARON NT-04 Specifications

General

Category	Medical Equipment
Model	NT-04
Type	Nebulizer
Battery Type	Lithium-ion
Color	White
Power Source	Battery
Charging Time	3 hours
Operating Time	60 minutes
Noise Level	≤ 50 dBA
Dimensions	45mm(L) x 45mm(W) x 100mm(H)