1. Úvod
This manual provides instructions for the safe and effective operation of the SMART SENSOR AS8906 Handheld NO2 Gas Leak Detector. This device is designed for detecting Nitrogen Dioxide (NO2) gas concentrations in various environments. Please read this manual thoroughly before using the product.
1.1 Bezpečnostné informácie
- Always operate the device in accordance with the instructions provided.
- Do not attempt to modify or repair the device yourself. Refer to qualified personnel for service.
- Ensure the device is charged using the provided charging adapter and USB cable.
- Avoid exposing the device to extreme temperatures or humidity outside the specified operating conditions.
- This device is intended for professional use and should be handled with care.
2. Produkt skončilview
2.1 Obsah balenia
Štandardný balík obsahuje nasledujúce položky:
- 1 x Nitrogen Dioxide Gas Monitor (AS8906)
- 1 x Návod na použitie
- 1 x nabíjací adaptér
- 1 x USB kábel
- 1 x Hand Carry Case
- 1 x Certifikát o kalibrácii
- 1 x CNEX Certificate
- 1 x Gift Paper Box

Obrázok 2.1: Štandardný obsah balenia.
2.2 Komponenty zariadenia
Familiarize yourself with the main components of the AS8906 detector:

Obrázok 2.2: Predná strana view and labeled components of the AS8906 detector.
- High Sensitive Sensor: Detects NO2 gas concentration.
- Sampling Pump Connecting Port: For attaching the optional sampling čerpadlo.
- LCD obrazovka: Displays gas concentration, battery status, and other information.
- Tlačidlo dole: Used for navigation and decreasinhodnoty g.
- Tlačidlo hore: Used for navigation and increasinhodnoty g.
- Zvukový alarm: Emits an audible alert when gas concentration exceeds set limits.
- Nabíjací port: Na pripojenie nabíjacieho kábla USB.
- Svetelný alarm: Visual alert (LED) when gas concentration exceeds set limits.
- Tlačidlo zapnutia / vypnutia: Ovláda napájanie zariadenia.
- Tlačidlo Enter: Potvrdzuje výber a nastavenia.
2.3 Rozmery
The AS8906 detector features a compact design for portability.

Obrázok 2.3: Rozmery zariadenia.
Dimensions: 120.2mm (Height) x 64.5mm (Width) x 38.3mm (Depth).

Figure 2.4: The compact size allows for easy portability.
3. Nastavenie
3.1 Nabíjanie zariadenia
The AS8906 detector is powered by a built-in 3.7V Li-battery. Before first use, ensure the device is fully charged.
- Nájdite nabíjací port v spodnej časti zariadenia.
- Pripojte dodaný USB kábel k nabíjaciemu portu.
- Connect the other end of the USB cable to the charging adapter.
- Plug the charging adapter into a standard power outlet.
- The battery indicator on the LCD screen will show charging status. A full charge typically provides up to 12 hours of continuous operation.

Obrázok 3.1: Umiestnenie nabíjacieho portu.

Figure 3.2: Gas detector with recharge adapter.
3.2 Pripojenie Sampling Pump (Optional)
The optional sampling pump (AS8930) is designed to assist the gas detector in environments with limited access or poor air circulation. It does not operate independently and requires power from the gas detector.
- Zarovnajte sampling pump with the gas detector's sampling pump connecting port.
- Securely attach the sampling pump to the gas detector using the two closed-type screws. Ensure a tight connection to avoid poor contact.
- Connect the soft rubber tube (500mm long) to the nozzle of the sampling čerpadlo.
- Dôležité: Do not connect any other voltage power supply to the sampling pump to prevent damage.

Obrázok 3.3: Sampling pump and accessories.
4. Prevádzka
4.1 Zapnutie/vypnutie
- Zapnutie: Stlačte a podržte Tlačidlo zapnutia/vypnutia until the LCD screen illuminates. The device will perform a self-test.
- Vypnutie: Stlačte a podržte Tlačidlo zapnutia/vypnutia kým sa obrazovka nevypne.
4.2 Pochopenie displeja
The high-density digital LCD screen displays real-time gas concentration values, battery status, and other operational indicators. The backlight function allows for use in dark areas.
- PPM: Indicates parts per million, the unit for gas concentration.
- Ikona batérie: Zobrazuje aktuálnu úroveň nabitia batérie.
- Alarmové indikátory: Visual cues for alarm status.
4.3 Funkcie alarmu
The device features high and low alarm functions with three alert methods: sound, light, and vibration. Alarm values are adjustable.
- When the gas concentration reaches a preset high or low alarm value, the device will activate its sound, light, and vibration alarms.
- The alarm sound can reach up to 80dB.
4.4 Adjusting Alarm Values
Refer to the on-screen menu for adjusting high and low alarm thresholds. Use the Up a Dole buttons to navigate and change values, and the Zadajte tlačidlo na potvrdenie.
4.5 Using the Sampling Pumpa
Keď sa sampling pump is connected, it will draw air into the detector, allowing for gas concentration measurement in remote or confined spaces. The air flow velocity is approximately 0.5 cubic inches per hour, with a maximum gas sample collecting distance of about 50 feet.
5. Údržba
5.1 Starostlivosť o batérie
- Recharge the device when the battery indicator shows low power to ensure continuous operation.
- Vyhnite sa častému úplnému vybitiu batérie, aby ste predĺžili jej životnosť.
- If storing the device for an extended period, charge it to approximately 50% and recharge every few months.
5.2 Čistenie
- Vonkajšiu časť zariadenia utrite mäkkou damp plátno.
- Nepoužívajte abrazívne čistiace prostriedky ani rozpúšťadlá, pretože môžu poškodiť casing alebo obrazovka.
- Ensure no liquids enter the sensor area or charging port.
5.3 Kalibrácia
The device comes with a calibration certificate. For optimal accuracy and compliance, periodic professional calibration is recommended. Refer to the manufacturer or authorized service centers for calibration services.
6. Riešenie problémov
If you encounter issues with your AS8906 detector, refer to the following common problems and solutions:
| Problém | Možná príčina | Riešenie |
|---|---|---|
| Zariadenie sa nezapne. | Slabá alebo vybitá batéria. | Charge the device using the provided adapter and USB cable. |
| Nepresné údaje. | Sensor contamination or need for calibration. | Ensure the sensor area is clean. Consider professional calibration if readings remain inconsistent. |
| Alarm not sounding/lighting/vibrating. | Alarm settings configured incorrectly or disabled. | Check alarm settings in the device menu. Ensure volume and vibration are enabled. |
| Sampling pump not working. | Poor connection to the detector or pump malfunction. | Zabezpečte sampling pump is securely attached with screws. Verify the detector is powered on. |
If the problem persists after attempting these solutions, contact customer support for further assistance.
7. Špecifikácie
7.1 Špecifikácie detektora
| Funkcia | Detail |
|---|---|
| Značka | SMART SENZOR |
| Model | AS8906 |
| Typ plynu | Oxid dusičitý (NO2) |
| Rozsah merania | 0~20 ppm |
| Rozlíšenie | 0.1 ppm |
| Pracovný princíp | Elektrochemický senzor |
| Typ budíka | Sound, Light, Vibration (adjustable values) |
| Úroveň zvuku alarmu | Až 80 dB |
| Prevádzková teplota | -10 až 50 °C |
| Prevádzková vlhkosť | 15~95% RH (standard) |
| Zdroj napájania | 3.7V Li-battery (Built-in) |
| Pracovný prúd | 16 mA |
| Nepretržitá prevádzka | Približne 12 hodiny (plné nabitie) |
| Materiál | ABS plast |
| Čistá hmotnosť | 200 g (7.1 uncí) |
| Rozmery | 120.2 x 64.5 x 38.3 mm |
| Certifikácie | JJG693; JJG695: JJG915 and GB3836 series anti-explosion standard, CNEX |
7.2 Sampling Pump Specifications (Optional Accessory)
| Funkcia | Detail |
|---|---|
| Prevádzkový zvtage Rozsah | DC 2.2V-3.2V |
| Pracovný prúd | <280 mA |
| Priemer dýzy | 2.5 mm |
| Hluk | <75 dB |
| Rozmery | 100.8 x 62.3 x 50 mm |
| Max Sample Distance | Približne. 50 stôp |
| Air Flow Velocity | Approx. 0.5 cubic inches per hour |
8. Záruka a podpora
8.1 Informácie o záruke
Your SMART SENSOR AS8906 Handheld NO2 Gas Leak Detector comes with a warranty. Please refer to the included Warranty Card in your package for specific terms and conditions, including warranty period and coverage details.
8.2 Zákaznícka podpora
For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact SMART SENSOR customer support. Contact information can typically be found on the product packaging, the warranty card, or the official SMART SENSOR webstránky.