1. Isingeniso
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. Ulwazi Lokuphepha
Hlala ulandela izinyathelo zokuphepha ezilandelayo ukuze uvimbele ukulimala noma umonakalo kudivayisi:
- Ungazami ukushintsha noma ukuqaqa idivayisi.
- Ensure the device is used within its specified operating temperature and humidity ranges.
- Gcina idivayisi ikude nezinkambu ezinamandla kazibuthe.
- Njalo hlola ucingo ukuze uthole noma yiziphi izimpawu zokulimala noma ukungasebenzi kahle.
- 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. Umkhiqizo Uphelileview
The SMART SENSOR AS8805 is a compact and portable sulfur dioxide gas detector. Familiarize yourself with its components:

Umfanekiso 3.1: Ngaphambili 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.

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

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

Umfanekiso 3.4: Emuva 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 Izingxenye Ezibalulekile
- Sulfur Dioxide Gas Sensor: Detects SO2 concentration in the air.
- Ukukhanya kwe-alamu: Provides visual indication during an alarm event.
- Isibonisi se-LCD yedijithali: Shows real-time gas concentration, battery status, and other operational information.
- Ukhiye Wokuvula/Ukuvala: Isetshenziselwa ukuvula noma ukuvala idivayisi.
- Up Key (Addition): Used for navigating menus or increasing amanani.
- Down Key (Subtraction): Used for navigating menus or decreasing amanani.
- Faka ukhiye: Kusetshenziswa ukuqinisekisa okukhethiwe noma ukufaka amamenyu.
- Battery Protective Cover: Secures the internal battery.
- I-Port yokushaja ye-USB: For recharging the device's internal Li-battery.
- Stainless Steel Clip: Allows for convenient carrying and attachment.
4. Setha
4.1 Ukukhipha ibhokisi kanye nokuqukethwe kwephakheji
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 Incwadi Yomsebenzisi
- 1x Explosive-proof Certificate
- 1x Ikhadi lewaranti
- 1x Power Charger
- 1x Ikhebula Lamandla
4.2 Ukushaja Ibhethri
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 Ukuvula Amandla Okuqala
Ukuze unike amandla idivayisi:
- Cindezela bese ubamba i Vula/Vala Ukhiye kuze kube yilapho isibonisi sikhanya.
- The device will perform a self-test and warm-up sequence. During this time, the display may show various readings before settling.
5. Ukusebenza
5.1 Vula/Vala amandla
- Vula: Cindezela bese ubamba i Vula/Vala Ukhiye for a few seconds until the display turns on.
- Cisha ugesi: Cindezela bese ubamba i Vula/Vala Ukhiye for a few seconds until the display turns off.
5.2 Ulwazi lokubonisa
The digital LCD display shows the following information:
- Real-time SO2 Concentration: Displayed in parts per million (ppm).
- Inkomba Yesimo Sebhethri: Ibonisa izinga lokushaja ibhethri lamanje.
- Izinkomba ze-alamu: 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:
- Uma idivayisi ivuliwe, cindezela Ukhiye Ophezulu or Ukhiye ophansi 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 futhi Down Keys to change digits and the Faka ukhiye to move to the next digit or confirm.
- After entering the correct password, navigate through the menu using the Up futhi Down Keys to find the alarm setting options.
- Adjust the high and low alarm thresholds as required using the Up futhi Down Keys, and confirm each setting with the Faka ukhiye.
5.4 Ukulinganiswa kukaziro
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.
- Amandla kudivayisi.
- Access the calibration menu by pressing the Ukhiye Ophezulu or Ukhiye ophansi 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 Faka ukhiye. 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.
- Ukucisha Okuzenzakalelayo: 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. Isondlo
6.1 Ukunakekelwa Kwebhethri
- Recharge the 3.7V Li-battery when the low power indicator is displayed.
- Gwema ukuchitha ibhethri liphele njalo ukuze liphile isikhathi eside.
- Use only the provided charger and cable.
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 Ukuhlanza
- Wipe the device exterior with a soft, damp indwangu.
- Ungasebenzisi izinto zokuhlanza abrasive noma izincibilikisi.
- Ensure no liquid enters the sensor opening or charging port.
7. Ukuxazulula izinkinga
| Inkinga | Imbangela Engenzeka | Isixazululo |
|---|---|---|
| Idivayisi ayivuli. | Ibhethri liphansi noma eliphelile. | Shaja idivayisi usebenzisa ishaja nekhebuli enikeziwe. |
| Ukufundwa okungalungile. | Sensor requires zero calibration; sensor lifespan exceeded. | Perform zero calibration in clean air. If issues persist, consider sensor replacement or professional service. |
| I-alamu izwakala ngokuqhubekayo. | High SO2 concentration detected; alarm settings too low. | Evacuate the area and ventilate. Check and adjust alarm thresholds if necessary. |
| Isibonisi asinalutho noma sifriziwe. | Software error or battery issue. | Try restarting the device. If problem persists, contact support. |
8. Imininingwane
| Isici | Imininingwane |
|---|---|
| Inombolo Yemodeli Yomkhiqizo | AS8805 |
| Gas Measurement Type | I-Sulphur Dioxide (SO2) |
| Ibanga Lokulinganisa | 0 ~ 20 ppm |
| Testing Resolution | 0.1 ppm |
| Isimiso sokulinganisa | Ugesi |
| I-Sensor Lifespan | 2 iminyaka |
| I-alamu ephansi/ephezulu | Supported, adjustable values |
| Izindlela ze-alamu | Umsindo, Ukukhanya, Ukudlidliza |
| Izinga Lomsindo we-alamu | Kufika ku-80 dB |
| Izinga Lokushisa Lokusebenza | -10 ~ 50 ℃ (14 ~ 122 ℉) |
| Umswakama Osebenzayo | 15 ~ 95% RH (Standard) |
| Uhlobo Lwebhethri | 3.7V Li-battery (754060p) |
| Isikhathi sokusebenza kwebhethri | Approx. 60 hours (no alarm) |
| Ukucisha Okuzenzakalelayo | Yes (after 10 minutes of no operation, if enabled) |
| Isisindo Esiphelele Somkhiqizo | 200g (ama-ounces angu-7.1) |
| Usayizi Womkhiqizo | 120 * 65 * 38 mm |
| I-UPC | 785197913523 |
9. Iwaranti kanye Nokusekela
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.