1. Introducció
The ST8100B is a precision oxygen concentration instrument designed for accurate and rapid measurement of oxygen (O₂) gas. It utilizes an electrochemical gas sensor for quick response and features manual alarm level setup with both light and sound indicators. This device is suitable for various environments including homes, workshops, petroleum refining facilities, petrochemical plants, and for oxygen content detection in vehicles and industrial settings where oxygen is used or monitored.
2. Informació de seguretat
Si us plau, llegiu i comprengui totes les instruccions de seguretat abans de fer servir el dispositiu. Si no segueix aquestes instruccions, pot patir lesions o danys al dispositiu.
- No intenteu reparar ni modificar el dispositiu. Envieu totes les tasques de manteniment a personal qualificat.
- Ensure proper battery installation and replacement as specified.
- Eviteu exposar el dispositiu a temperatures extremes, humitat o ambients corrosius.
- Mantingueu el dispositiu allunyat de camps electromagnètics forts.
- Always operate the device within its specified operating conditions.
- This device is for measurement purposes only and should not be used as a primary safety device in critical life-support systems without additional safety measures.
3. Producte acabatview
The ST8100B is designed for ease of use and portability. Key components and controls are outlined below:
- Sensor: Located at the top, responsible for detecting oxygen concentration.
- Visualització: Large LCD screen showing measurement results and other indicators.
- Botó On/Off: Encén o apaga el dispositiu.
- Backlight/▼ key: Controls display backlight and navigates menus downwards.
- Tecla de mode: Switches between different operating modes.
- Sound/▲ key: Controls audible alarm and navigates menus upwards.
- Tecla UNIT: Changes measurement units.
4. Especificacions
| Característica | Especificació |
|---|---|
| Marca | SMART SENSOR / OEM |
| Número de model | ST8100B |
| Mostra | Segment LCD backlight display |
| Tipus de gas | Oxygen meter |
| Interval de mesura | 0~30% VOL |
| Resolució | 0.1% |
| Error bàsic | ≤±3% F·S |
| Interval de temperatura | -20℃~50℃ (accuracy ±2℃) |
| Gamma d’humitat | 1% RH ~ 99% RH |
| Temps de resposta | Menys de 15 segons |
| Temps de recuperació | Menys de 15 segons |
| Principi de mesura | Electrochemical principle, life for 2 years |
| Configuració d'alarma | Low / High Alarm setting |
| Mode d'alarma | Sound and light dual alarm |
| Temperatura de funcionament | -10℃~50℃ (except LEL is 0 ~40℃) |
| Humitat de funcionament | 0-95% HR (sense condensació) |
| Temperatura d'emmagatzematge | 0 ~ 40 ℃ |
| Product Weight / Size | 138g / 57*28*167mm |
| Norma d'implementació | GB12358-2006 |
| Font d'alimentació | 3x1.5V AAA battery |
| Battery Working Runtime | About 100 hours of continuous use (when backlight is off) |
| Embalatge | Caixa de regal |
| Contingut de l'embalatge | 1 * Oxygen Detector, 1 * USB Cable, 1 * Hose, 1 * Carrying Case, 1 * User Manual (English) |
5. Configuració
5.1. Instal·lació de la bateria
The ST8100B requires three (3) 1.5V AAA batteries for operation. Batteries are not included with the device.
- Localitzeu la tapa del compartiment de la bateria a la part posterior del dispositiu.
- Slide the cover open in the direction indicated.
- Insert three 1.5V AAA batteries, ensuring correct polarity (+/-) as marked inside the compartment.
- Tanqueu bé la tapa del compartiment de la bateria.
5.2. Engegada inicial
Press and hold the On/Off button (usually the red power button) until the display illuminates. The device will perform a self-test and then enter the measurement mode.
6. Instruccions de funcionament
6.1. Prendre Mides
Once powered on, the device will automatically begin measuring oxygen concentration in the surrounding environment. The current oxygen percentage and temperature will be displayed on the HD backlit LCD screen.
6.2. Canvi d'unitats
Press the 'UNIT' key to cycle through available measurement units if applicable (e.g., for temperature display between Celsius and Fahrenheit).
6.3. Setting Alarm Values
The ST8100B allows you to set both low and high alarm thresholds for oxygen concentration.
- Enter the alarm setting mode (refer to the device's on-screen prompts or specific button combinations if available).
- Use the '▲' (Sound) and '▼' (Backlight) keys to adjust the 'LO ALM' (Low Alarm) value.
- Confirm the low alarm setting.
- Use the '▲' and '▼' keys to adjust the 'HI ALM' (High Alarm) value.
- Confirm the high alarm setting to save.
7. Alarmes
The ST8100B is equipped with a high-decibel buzzer and a visual display alarm. When the detected oxygen concentration falls below the 'LO ALM' value or rises above the 'HI ALM' value, the instrument will activate both audible and visual alarms to alert the user.
8. Effects of Oxygen Concentration on Humans
Understanding the effects of varying oxygen levels is crucial for safety. The table below outlines the symptoms associated with different oxygen concentrations in the atmosphere (at standard atmospheric pressure).
| Oxygen Concentration (%) | Symptoms (Atmospheric Pressure) |
|---|---|
| 100% | Deadly, 6 minutes (Absolutely airtight environment, such as hyperbaric oxygen chamber) |
| 50% | Deadly, can be cured after 45 minutes treatment. (Absolutely airtight environment, such as hyperbaric oxygen chamber) |
| >23.5% | Rich oxygen |
| 20.96% | Normal |
| 19.5% | Mínim |
| 15~19% | Reduce efficiency, and lead to problems of head, lung and circulation system |
| 10~12% | Shortness of breath, loss of judgment, purple lips |
| 8~10% | Governance loss, syncope, unconscious, pale, nausea and vomiting |
| 6~8% | 8 minutes, blood pressure, weak heartbeat, mouth breathing, quickly stopped breathing |
| 4~6% | 40 seconds, convulsions, respiratory arrest, death |
9. Manteniment
- Neteja: Netegeu el dispositiu amb un suau, damp tela. No utilitzeu netejadors abrasius ni dissolvents.
- Emmagatzematge: When not in use for extended periods, remove the batteries and store the device in a cool, dry place, away from direct sunlight and extreme temperatures.
- Cura del sensor: The electrochemical sensor has a life of approximately 2 years. Regular calibration is recommended to ensure accuracy, though this device does not specify user calibration.
- Substitució de la bateria: Replace batteries promptly when the low battery indicator appears on the display to ensure continuous accurate operation.
10. Solució De Problemes
If you encounter issues with your ST8100B, please refer to the following common problems and solutions:
- El dispositiu no s'encén:
- Comproveu si les piles estan instal·lades correctament amb la polaritat correcta.
- Substituïu-les per piles AAA noves.
- Lectures inexactes:
- Assegureu-vos que el sensor estigui net i sense obstruccions.
- Verify the device is operating within its specified temperature and humidity ranges.
- Allow the device to stabilize in the environment for a few minutes before taking critical readings.
- Alarm not sounding/flashing:
- Check if alarm settings (LO ALM, HI ALM) are configured correctly.
- Ensure the sound is not muted (if a mute function exists).
Per a problemes persistents, poseu-vos en contacte amb l'atenció al client.
11. Consells d'usuari
- The device's battery working runtime is approximately 100 hours of continuous use when the backlight is off. To conserve battery life, turn off the backlight when not needed.
- Always ensure the English version of the user manual is available for reference.
- Consider the various applications of the device, such as oxygen generator purity testing, chemical industry monitoring, gallery area safety, oxygen cylinder concentration detection, mountaineering, and agricultural planting, to maximize its utility.
12. Garantia i Suport
12.1. Garantia
Aquest producte ve amb un 1 any de garantia from the date of purchase. During the warranty period, if any quality problem arises, please provide photos to demonstrate the issue. The manufacturer will determine whether to send replacement parts or request the instrument for repair or exchange. Please contact customer support before returning any product. You will be responsible for double-run freight costs.
12.2. Suport
For technical assistance, troubleshooting, or warranty claims, please refer to the contact information provided with your purchase or visit the official SMART SENSOR weblloc.
13. Informació de l'empresa
SMART SENSOR is a professional manufacturer and seller of instruments with over 10 years of experience in instrument development and production. The company boasts a strong R&D team and collaborates with domestic universities to develop cutting-edge technology. Their products, including smart multimeters, clamp meters, DC power supplies, laser distance meters, infrared thermometers, vibration meters, thickness gauges, sound level meters, anemometers, temperature hygrometers, range finders, gas detectors, metal detectors, voltage insulation meters, earth resistance testers, and leakage current testers, are known for their quality and market share. OEM/ODM services are available for all models.
14. Certificacions
The ST8100B Oxygen Gas Analyzer complies with relevant international standards and holds the following certifications:
- Certificació CE
- Certificació FCC
- Compliment RoHS
15. Preguntes freqüents (FAQ)
- Q: Does your company accept customization?
- A: Yes, we offer customizing services for customers, including OEM/ODM. Any logo and color can be customized. An English copy of the manual is also available.
- Q: What is the warranty of the product?
- A: We offer a 12-month warranty. Within the warranty period, if there is any quality problem, please send us photos to show the problem. We will then decide to send you parts or have you send the instrument back for repair or exchange. Please contact us first before sending it back directly. You will only need to pay for double-run freight.



