1. Sarrera
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. Segurtasun informazioa
Beti jarraitu segurtasun neurri hauek gailuari lesioak edo kalteak saihesteko:
- Ez saiatu gailua aldatzen edo desmuntatzen.
- Ziurtatu gailua zehaztutako funtzionamendu-tenperatura eta hezetasun-tarteetan erabiltzen dela.
- Mantendu gailua eremu elektromagnetiko indartsuetatik urrun.
- Egiaztatu aldian-aldian gailua kalterik edo matxurarik dagoen zantzurik dagoen.
- 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. Produktua amaitu daview
The SMART SENSOR AS8805 is a compact and portable sulfur dioxide gas detector. Familiarize yourself with its components:

3.1. irudia: Aurrealdea 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.

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

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

3.4. irudia: Atzealdea 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 Funtsezko osagaiak
- Sulfur Dioxide Gas Sensor: Detects SO2 concentration in the air.
- Alarma argia: Provides visual indication during an alarm event.
- LCD pantaila digitala: Shows real-time gas concentration, battery status, and other operational information.
- Pizteko/Itzali tekla: Used to turn the device on or off.
- Up Key (Addition): Used for navigating menus or increasing balioak.
- Down Key (Subtraction): Used for navigating menus or decreasing balioak.
- Sartu gakoa: Used to confirm selections or enter menus.
- Battery Protective Cover: Secures the internal battery.
- USB kargatzeko ataka: For recharging the device's internal Li-battery.
- Stainless Steel Clip: Allows for convenient carrying and attachment.
4. Konfigurazioa
4.1 Kutxa irekitzea eta paketearen edukia
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 Erabiltzailearen eskuliburua
- 1x Explosive-proof Certificate
- 1x Berme Txartela
- 1x Power Charger
- 1x Elikadura Kablea
4.2 Bateria kargatzea
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.
- The battery icon on the LCD display will indicate charging status.
- A full charge typically allows for approximately 60 hours of continuous operation without alarms.
4.3 Hasierako piztea
Gailua pizteko:
- Eduki sakatuta Pizteko/Itzali tekla until the display illuminates.
- The device will perform a self-test and warm-up sequence. During this time, the display may show various readings before settling.
5. Funtzionamendua
5.1 Piztu/Itzali
- Piztu: Eduki sakatuta Pizteko/Itzali tekla for a few seconds until the display turns on.
- Itzali: Eduki sakatuta Pizteko/Itzali tekla for a few seconds until the display turns off.
5.2 Bistaratu informazioa
The digital LCD display shows the following information:
- Real-time SO2 Concentration: Displayed in parts per million (ppm).
- Bateriaren egoeraren adierazlea: Shows the current battery charge level.
- Alarma adierazleak: 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:
- Gailua piztuta duzula, sakatu botoia Gora tekla or Behera tekla 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 eta Down Keys to change digits and the Sartu tekla to move to the next digit or confirm.
- After entering the correct password, navigate through the menu using the Up eta Down Keys to find the alarm setting options.
- Adjust the high and low alarm thresholds as required using the Up eta Down Keys, and confirm each setting with the Sartu tekla.
5.4 Zero Kalibrazioa
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.
- Piztu gailua.
- Access the calibration menu by pressing the Gora tekla or Behera tekla 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 Sartu tekla. 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.
- Itzali automatikoa: 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. Mantentzea
6.1 Bateria zaintzea
- Recharge the 3.7V Li-battery when the low power indicator is displayed.
- Saihestu bateria maiz erabat deskargatzea, haren iraupena luzatzeko.
- Erabili emandako kargagailua eta kablea soilik.
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 Garbiketa
- Garbitu gailuaren kanpoaldea oihal leun etaamp oihal.
- Ez erabili garbitzaile edo disolbatzaile urratzailerik.
- Ensure no liquid enters the sensor opening or charging port.
7. Arazoak
| Arazoa | Kausa posiblea | Irtenbidea |
|---|---|---|
| Gailua ez da pizten. | Bateria baxua edo agortuta. | Kargatu gailua hornitutako kargagailua eta kablea erabiliz. |
| Irakurketa okerrak. | Sensor requires zero calibration; sensor lifespan exceeded. | Perform zero calibration in clean air. If issues persist, consider sensor replacement or professional service. |
| Alarmak etengabe jotzen du. | High SO2 concentration detected; alarm settings too low. | Evacuate the area and ventilate. Check and adjust alarm thresholds if necessary. |
| Pantaila hutsik edo izoztuta dago. | Software error or battery issue. | Try restarting the device. If problem persists, contact support. |
8. Zehaztapenak
| Ezaugarri | Xehetasuna |
|---|---|
| Produktuaren eredu-zenbakia | AS8805 |
| Gas Measurement Type | Sufre dioxidoa (SO2) |
| Neurketa-eremua | 0 ~ 20 ppm |
| Testing Resolution | 0.1 ppm |
| Neurketa-printzipioa | elektrokimikoa |
| Sentsorearen Bizi-iraupena | 2 urte |
| Alarma baxua/altua | Supported, adjustable values |
| Alarma metodoak | Soinua, Argia, Bibrazioa |
| Alarma Soinu Maila | Gehienez 80 dB |
| Funtzionamendu-tenperatura | -10 ~ 50 ℃ (14 ~ 122 ℉) |
| Funtzionamenduaren hezetasuna | 15 ~ 95% RH (Standard) |
| Bateria mota | 3.7V Li-battery (754060p) |
| Bateriaren lan-denbora | Approx. 60 hours (no alarm) |
| Itzali automatikoa | Yes (after 10 minutes of no operation, if enabled) |
| Produktuaren pisu garbia | 200 g (7.1 ontza) |
| Produktuaren Tamaina | 120 * 65 * 38 mm |
| UPC | 785197913523 |
9. Bermea eta Laguntza
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.





