Negative oxygen ion detector

Working principle：

This product adopts a unique cylindrical air collector that actively collects negative ions from the atmosphere. It has a stable airflow and advanced negative pressure dust removal structure, ensuring long-term stable operation. Calculate air negative ions using I-V conversion. The air passes through the collection channel at a constant wind speed, and the outer cylinder applies a negative voltage to attract positive ions. The corresponding collection plate attracts negative ions, which are then converted into analog-to-digital signals in the form of voltage through an I-V conversion circuit. Finally, the measured value is output.

Product features：

The handheld negative oxygen ion detector with an all aluminum sandblasting oxidation process shell has excellent electromagnetic shielding function and anti fouling characteristics.

Equipped with advanced amplification circuits and filtering technology, it can detect the number of negative ions with high sensitivity, stability, and accuracy.

Large LCD display screen

Large capacity polymer lithium-ion batteries

Power on automatic zero adjustment to ensure accuracy of data acquisition

Small in size and convenient to carry.

Technical parameters：

Measurement method: cylindrical electrode suction type;

Measurement range: 0-100000 pieces/cm ³, Resolution of 10/cm ³；

Measurement error: reading ± 10%; Ion migration rate ≤ ± 20%;

Measurement resolution: 10 pieces/cm ³；

Sampling frequency: 10 times/s;

Ion mobility: 0.4-1.0 (cm2/V • sec);

Power supply: built-in 3.7V 2000mAh lithium battery;

Working environment: Temperature: 10-70 ℃ Humidity: 10-70% RH;

Average power consumption: ≤ 1.4W;

Main body size: 120 × eighty × 38 (mm);

Protection level: IP41;

Net weight: 400g;

Instructions for use：

1. When in use, lightly press the left power switch button, the screen will light up, and the instrument will start working; Press to close again;

2. After each startup, the instrument will be heated and automatically zeroed. Do not move the instrument after startup, and place it in an environment with no negative ions or low negative ion content. You can place the front side facing down (i.e. the air inlet) on a flat surface such as the desktop;

3. After about one minute, the instrument enters the normal reading state;

4. Do not obstruct the air inlet and outlet during use;

5. Due to the different migration rates of negative ions in the air, when conducting comparative tests, please place the air inlet of the instrument in the same relative position as the negative ion release source to ensure the authenticity and reliability of the measurement data;

6. Please measure and read within the specified working environment range;

7. Precision instruments, handle with care and properly store

8. Zero key: Press to quickly restore the current displayed data to the lowest value;

9. Hold key: Fixed display of current collected data; Press again to continue collecting;

Attention: Due to the continuous generation and disappearance of negative oxygen ions in the environment, which maintain dynamic stability and overall stability, the average value collected multiple times should be taken when recording data.

Charging instructions：

When the screen battery level indicates low, the instrument should be charged. When the charging indicator light changes from red to green, it indicates that the battery is fully charged.