DFROBOT原廠
Gravity：IIC 臭氧傳感器（0-10ppm） SEN321
Gravity: I2C Ozone Sensor (0-10ppm)
出廠標定，無需校準，上手即可使用的臭氧傳感器
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【配送清單】
- 臭氧傳感器模塊 x1
- Gravity-4pinIIC線x1
- M3*10尼龍柱 x4
- M3*5螺絲x8
【FEATURES】
- Measuring ozone concentration in the environment
測量環境中的臭氧濃度 - Supports Gravity 4-Pin Interface
支持重力4針接口 - Accurate Digital Output
精確的數字輸出
【規格】
- 檢測氣體： 臭氧
- 工作電壓： 3.3～5.5V DC
- 輸出信號： IIC輸出
- 測量範圍： 0~10ppm
- 分辨率： 0.01ppm（10ppb）
- 預熱時間： ≤3分鐘
- 響應時間： ≤90秒
- 恢復時間： ≤90秒
- 工作溫度： -20 ~ 50℃
- 工作濕度： 15 ~ 95%RH （無凝結）
- 存儲溫度： -20 ~ 50℃
- 壽命： >2 年（空氣中）
- 電路板尺寸：27mm*37mm
這是一款體積小巧的arduino兼容的臭氧傳感器模組，可方便、準確地測量環境中臭氧氣體的濃度。可廣泛應用於便攜式儀器儀表、空氣質量監測設備、消毒櫃、智能家居等設備場所。
Gravity: I2C Ozone Sensor (0-10ppm) is based on electrochemical principles and it can measure the ambient O3 concentration accurately and conveniently. With high anti-interference ability, high stablility and high sensitivity, this arduino-compatible ozone sensor can be widely applied to fields like portable device, air quality monitoring device, disinfection cabinets and smart home.
DFRobot推出的臭氧傳感器，採用電化學原理，出廠前已經進行過標定，可以準確測量環境中的臭氧濃度。並具有抗干擾、穩定性高、靈敏度高等特點。分辨率可以達到10ppb，支持3.3~5.5V寬電壓輸入，使用IIC輸出，兼容Arduino、ESP32、樹莓派等主流設備，具有良好的兼容性，空氣中的使用壽命長達兩年。簡單易用的Gravity接口，配上我們的樣例代碼，可迅速搭建出自己的臭氧濃度檢測儀。
This compact dfrobot ozone sensor supports I2C output, it is compatible with many mainboards like Arduino Uno, esp32, Raspberry Pi and so on. Its resolution can reach to 10ppb. It supports wide range input voltage: 3.3V to 5.5V. Moreover, the lifetime is as long as 2 years. With simple Gravity interface and practical sample code, you can build your own ozone concentration monitor easily and conveniently.
擴展閱讀：
臭氧是一種有類似魚腥味臭味的氣體，對人的身體有強烈的刺激作用。臭氧主要是由人為排放的NOx、VOCs等污染物的光化學反應生成。在晴天、紫外線輻射強的條件下，NO2等發生光解生成一氧化氮和三重太氧原子，三重太氧原子與氧反應生成臭氧。隨著空氣污染日趨嚴重，臭氧也成為主要空氣污染物之一。
Ozone is a gas with a fish-like smell, which has a strong stimulating effect on the human body. Ozone is mainly produced by the photochemical reaction of man-made emissions of NOx, VOCs, and other pollutants. Under sunny conditions and strong ultraviolet radiation, NO2 etc. undergo photolysis to produce nitric oxide and triplet oxygen atoms, and triplet oxygen atoms react with oxygen to generate ozone. As air pollution becomes more severe, ozone has also become one of the main air pollutants.
國際環境空氣質量標準（National Ambient Air Quality Standards，NAAQS）提出，人在一個小時內可接受臭氧的極限濃度是260μg/m3。在320μg/m3臭氧環境中活動1h就會引起咳嗽、呼吸困難及肺功能下降。臭氧還能參與生物體中的不飽和脂肪酸、氨基及其他蛋白質反應，使長時間直接接觸高濃度臭氧的人出現疲乏、咳嗽、胸悶胸痛、皮膚起皺、噁心頭痛、脈搏加速、記憶力衰退、視力下降等症狀。
The National Ambient Air Quality Standards (NAAQS) propose that the limit concentration of ozone that humans can accept within one hour is 260 μg / m3. Coughing, dyspnea, and decreased lung function can be caused by activity in an ozone environment of 320 μg / m3 for 1 hour. Ozone can also participate in the reaction of unsaturated fatty acids, amino groups and other proteins in the organism, which makes people who have been in direct contact with high concentrations of ozone for a long time appear fatigue, cough, chest tightness, chest pain, skin wrinkling, nausea and headache, pulse acceleration, memory loss, vision Drop and other symptoms.
所以在夏日的午後，如果出現疲乏、胸悶、咳嗽等症狀，可能是空氣中臭氧濃度過高導致的。關閉門窗，減少室內外的空氣流通，臭氧可以自然分解，是降低室內臭氧濃度的有效方式。
Therefore, in the summer afternoon, if symptoms such as fatigue, chest tightness, and cough appear, the ozone concentration in the air may be too high. Closing doors and windows reduces indoor and outdoor air circulation, and ozone can decompose naturally, which is an effective way to reduce indoor ozone concentration.
【注意】：
- 禁止插拔模組上的傳感器。
Do not plug or unplug sensors on the module.
- 禁止改動、移位電子元件安裝狀態。模組避免接觸有機溶劑（包括矽膠及其它膠粘劑）、塗料、藥劑、油類及高濃度氣體。
It is forbidden to change or shift the installation state of electronic components. The module avoids contact with organic solvents (including silicone and other adhesives), coatings, pharmaceuticals, oils and high concentrations of gases.
- 模組不可用樹脂材料完全封裝，也不可浸沒在無氧環境中，否則會損壞傳感器的性能。
The module cannot be completely encapsulated with resin material, and it cannot be immersed in an oxygen-free environment, otherwise the performance of the sensor will be damaged.
- 模組不能長時間應用於含有腐蝕性氣體的環境中，腐蝕性氣體會損害傳感器。
The module cannot be used in the environment containing corrosive gas for a long time. Corrosive gas will damage the sensor.
- 模組不可經受過度的撞擊或震動。
The module must not be subjected to excessive shock or vibration. - 模組初次上電使用需預熱24-48 小時左右，使模組充分穩定後正常測試。
The module needs to be warmed up for about 24-48 hours after it is powered on for the first time. After the module is fully stable, it will be tested normally.
- 模組上傳感器的白色防水透氣膜嚴禁揭開，否則視為人為損壞。
The white waterproof and breathable membrane of the sensor on the module is strictly forbidden to open, otherwise it is regarded as artificial damage.
- 請勿將模組安裝在強對流空氣環境下使用。
Do not install the module in a strong convection air environment. - 請勿將模組長時間放置於高濃度有機氣體中，長期放置會導致傳感器零點發生漂移，恢復緩慢。
Do not place the module in high-concentration organic gas for a long time. Long-term storage will cause the sensor zero point to drift and recover slowly. - 禁止用熱熔膠或者固化溫度高於80℃以上的密封膠封裝模組。
- 禁止長時間在高濃度鹼性氣體中存放和使用。
