1. Sissejuhatus
This manual provides detailed instructions for the safe and effective use of the SMART SENSOR AS8805 Digital Sulfur Dioxide Gas Monitor. This device is designed for high-sensitivity detection of sulfur dioxide (SO2) gas, featuring sound and light alarms, and a rechargeable Li-battery for portable operation. Please read this manual thoroughly before operating the device and retain it for future reference.
2. Ohutusalane teave
Vigastuste või seadme kahjustuste vältimiseks järgige alati järgmisi ohutusnõudeid:
- Ärge proovige seadet modifitseerida ega lahti võtta.
- Ensure the device is used within its specified operating temperature and humidity ranges.
- Hoidke seade eemal tugevatest elektromagnetväljadest.
- Kontrollige regulaarselt seadet kahjustuste või rikete suhtes.
- Perform zero calibration in a clean air environment, free from SO2 or other interfering gases.
- Recharge the battery promptly when the low power indicator is active to maintain optimal performance and safety.
- This device is designed for detecting SO2 gas. Do not use it for other gas types without proper calibration and verification.
3. Toote lõppview
The SMART SENSOR AS8805 is a compact and portable sulfur dioxide gas detector. Familiarize yourself with its components:

Joonis 3.1: Esiosa View of the AS8805 Detector. This image shows the front of the device, highlighting the digital LCD display, power on/off key, up key (addition), down key (subtraction), and enter key. The alarm light is visible at the top left, and the sulfur dioxide gas sensor is at the top right.

Joonis 3.2: Ülemine View of the AS8805 Detector. This image displays the top section of the device, indicating the battery protective cover and the USB charging port.

Joonis 3.3: Külg View of the AS8805 Detector. This image illustrates the side of the device, pointing out the gas sensor inside and the alarm light.

Joonis 3.4: Tagakülg View of the AS8805 Detector. This image shows the back of the device, featuring the stainless steel clip, a simple parameters chart, and the factory serial number.
3.1 Põhikomponendid
- Sulfur Dioxide Gas Sensor: Detects SO2 concentration in the air.
- Häire tuli: Provides visual indication during an alarm event.
- Digitaalne LCD ekraan: Shows real-time gas concentration, battery status, and other operational information.
- Sisse-/väljalülitusklahv: Kasutatakse seadme sisse- või väljalülitamiseks.
- Up Key (Addition): Used for navigating menus or increasing-väärtused.
- Down Key (Subtraction): Used for navigating menus or decreasing-väärtused.
- Sisestage võti: Kasutatakse valikute kinnitamiseks või menüüdesse sisenemiseks.
- Battery Protective Cover: Secures the internal battery.
- USB-laadimisport: For recharging the device's internal Li-battery.
- Stainless Steel Clip: Allows for convenient carrying and attachment.
4. Seadistamine
4.1 Karbist väljavõtmine ja pakendi sisu
Carefully unpack the device and verify that all standard accessories are present:

Figure 4.1: Standard Package Contents. This image shows the items included in the standard package: the AS8805 gas monitor, power charger and cable, user manual, explosive-proof certificate, certificate of calibration, and warranty card.
- 1x Sulfur Dioxide Gas Monitor (AS8805)
- 1x kasutusjuhend
- 1x Explosive-proof Certificate
- 1x garantiikaart
- 1x laadija
- 1x toitekaabel
4.2 Aku laadimine
The device is powered by a 3.7V Li-battery. Before first use, or when the low power indicator appears, charge the device:
- Connect the provided power cable to the USB charging port on the top of the device (refer to Figure 3.2).
- Connect the other end of the cable to the power charger, and then plug the charger into a suitable power outlet.
- LCD-ekraanil olev aku ikoon näitab laadimise olekut.
- A full charge typically allows for approximately 60 hours of continuous operation without alarms.
4.3 Esmane sisselülitamine
Seadme sisselülitamiseks toimige järgmiselt.
- Vajutage ja hoidke all nuppu Toite sisse/välja võti kuni ekraan süttib.
- The device will perform a self-test and warm-up sequence. During this time, the display may show various readings before settling.
5. Operatsioon
5.1 Toide sisse/välja
- Toide sisse: Vajutage ja hoidke all nuppu Toite sisse/välja võti for a few seconds until the display turns on.
- Toide välja: Vajutage ja hoidke all nuppu Toite sisse/välja võti mõneks sekundiks, kuni ekraan kustub.
5.2 Kuva teave
The digital LCD display shows the following information:
- Real-time SO2 Concentration: Displayed in parts per million (ppm).
- Aku oleku indikaator: Näitab aku praegust laetuse taset.
- Häire indikaatorid: Visual cues for high or low alarm conditions.
5.3 Alarm Functions and Settings
The device features adjustable high and low alarm values with three alarm methods: sound, light, and vibration. The alarm sound can reach up to 80dB.
- Default High Alarm: 10.0 ppm
- Default Low Alarm: 5.0 ppm
To adjust alarm values:
- Kui seade on sisse lülitatud, vajutage nuppu Üles klahv or Alla klahv to enter the password interface.
- Enter the password (e.g., "123" as shown in the calibration video, though specific password should be confirmed in the full user manual). Use the Up ja Down Keys to change digits and the Sisesta võti to move to the next digit or confirm.
- After entering the correct password, navigate through the menu using the Up ja Down Keys to find the alarm setting options.
- Adjust the high and low alarm thresholds as required using the Up ja Down Keys, and confirm each setting with the Sisesta võti.
5.4 Nullkalibreerimine
Zero calibration ensures accurate readings by setting the baseline in a clean air environment. This procedure should be performed regularly or if you suspect inaccurate readings.
- Ensure the device is in a clean environment, free from any SO2 gas.
- Lülitage seade sisse.
- Access the calibration menu by pressing the Üles klahv or Alla klahv to enter the password interface.
- Enter the password (e.g., "123").
- After successful password entry, navigate to the calibration option (often labeled "CAL" or "ZERO CAL").
- Confirm the zero calibration selection with the Sisesta võti. The device will then perform the zero calibration, displaying a changing number as it stabilizes.
- Wait for the device to stabilize and confirm the calibration. The display may show "F" or return to 0.0 ppm, indicating successful calibration.
5.5 Auto/Hand Power Off Function
The device includes an auto power-off feature to conserve battery life. This can be set manually.
- Automaatne väljalülitus: If enabled, the device will automatically turn off after 10 minutes of no operation.
- Refer to the full user manual for specific instructions on how to enable or disable the auto power-off function.
6. Hooldus
6.1 Aku hooldus
- Recharge the 3.7V Li-battery when the low power indicator is displayed.
- Aku eluea pikendamiseks vältige selle sagedast täielikku tühjendamist.
- Kasutage ainult kaasasolevat laadijat ja kaablit.
6.2 Sensor Life
The electrochemical sensor has an estimated life of 2 years. After this period, the sensor's accuracy may degrade, and replacement or professional calibration may be required.
6.3 Puhastamine
- Pühkige seadme välispind pehme lapigaamp riie.
- Ärge kasutage abrasiivseid puhastusvahendeid ega lahusteid.
- Ensure no liquid enters the sensor opening or charging port.
7. Veaotsing
| Probleem | Võimalik põhjus | Lahendus |
|---|---|---|
| Seade ei lülitu sisse. | Tühja või madala laetuse tasemega aku. | Laadige seadet kaasasoleva laadija ja kaabli abil. |
| Ebatäpsed näidud. | Sensor requires zero calibration; sensor lifespan exceeded. | Perform zero calibration in clean air. If issues persist, consider sensor replacement or professional service. |
| Alarm kostab pidevalt. | High SO2 concentration detected; alarm settings too low. | Evacuate the area and ventilate. Check and adjust alarm thresholds if necessary. |
| Ekraan on tühi või hangunud. | Software error or battery issue. | Proovige seadet taaskäivitada. Kui probleem püsib, võtke ühendust toega. |
8. Tehnilised andmed
| Funktsioon | Detail |
|---|---|
| Toote mudeli number | AS8805 |
| Gas Measurement Type | Vääveldioksiid (SO2) |
| Mõõtmisulatus | 0–20 ppm |
| Testing Resolution | 0.1 ppm |
| Mõõtmise põhimõte | Elektrokeemiline |
| Anduri eluiga | 2 aastat |
| Madal/kõrge häire | Supported, adjustable values |
| Alarmi meetodid | Heli, valgus, vibratsioon |
| Alarmi helitase | Kuni 80 dB |
| Töötemperatuur | -10 ~ 50 ℃ (14 ~ 122 ℉) |
| Töö niiskus | 15 ~ 95% RH (Standard) |
| Aku tüüp | 3.7V Li-battery (754060p) |
| Aku tööaeg | Approx. 60 hours (no alarm) |
| Automaatne väljalülitus | Yes (after 10 minutes of no operation, if enabled) |
| Toote netokaal | 200 g (7.1 untsi) |
| Toote suurus | 120 * 65 * 38 mm |
| UPC | 785197913523 |
9. Garantii ja tugi
The SMART SENSOR AS8805 Digital Sulfur Dioxide Gas Monitor comes with a warranty as detailed in the included Warranty Card. Please refer to the card for specific terms and conditions.
For technical support, service, or inquiries regarding your device, please contact your retailer or the manufacturer directly. Keep your purchase receipt and warranty card handy when seeking support.





