1. Introduzione
The UNI-T UT334E is a portable, voice-enabled 4-in-1 gas detector designed for continuous monitoring of gas concentrations. This device integrates advanced circuit technology, embedded microcomputer control, and high-quality imported gas sensors to provide excellent sensitivity and repeatability. It features a dot matrix LCD display with support for both Chinese and English interfaces and voice prompts, ensuring ease of use and maintenance. The robust shell is constructed from high-strength engineering plastic, offering good vibration resistance, high strength, and protection against dust, water, and explosions.
This manual provides detailed instructions for the safe and effective operation, maintenance, and troubleshooting of your UT334E gas detector.
2. Informazioni di sicurezza
Please read and understand all safety instructions before operating the device. Failure to follow these instructions may result in injury, damage to the device, or inaccurate readings.
- calibrazione: Ensure the device is regularly calibrated according to manufacturer guidelines to maintain accuracy.
- Ambiente operativu: Use the device within the specified temperature and humidity ranges. Avoid extreme conditions.
- Periculu d'esplosione: This device is designed with explosion-proof features. However, always exercise caution in potentially explosive atmospheres. Do not attempt to open or repair the device in such environments.
- Sicurezza di a batteria: Use only the specified battery type. Do not expose the battery to high temperatures or attempt to disassemble it.
- Prutezzione di sensori: Avoid exposing sensors to high concentrations of gas for prolonged periods, as this may damage them or reduce their lifespan.
- Mantenimentu: Only qualified personnel should perform repairs or advanced maintenance.
- Conservazione: Store the device in a clean, dry environment away from direct sunlight and corrosive substances.
3. Produttu Finituview
The UT334E is a compact and robust gas detector designed for reliable performance in various industrial and safety applications. Its ergonomic design ensures comfortable handheld operation.
Figura 3.1: Fronte view of the UNI-T UT334E Handheld Gas Detector, showing the display and control buttons.
This device is capable of detecting four types of gases simultaneously, providing comprehensive air quality monitoring.
Figure 3.2: Illustration highlighting the four gases detected by the UT334E: EX (combustible gases), H2S (Hydrogen Sulfide), CO (Carbon Monoxide), and O2 (Oxygen).
4. Funzioni chjave
The UT334E gas detector incorporates several features to enhance its functionality and user experience:
- Supportu multilingue: Switch between Chinese and English display interfaces and voice prompts.
- Quadruple Alarm System: Features sound, light, vibration, and screen flashing for comprehensive alarm indications.
- Batteria d'alta capacità: Equipped with a 5000mAh built-in lithium battery for extended operation.
- Storage di dati: Automatic storage of records that can be viewed and deleted directly on the device.
- Schermu LCD à culori: A 2.4-inch color LCD display provides clear visualization of gas detection indicators.
- Custruzzione durabile: Made from high-strength engineering plastic, offering anti-compression, anti-drop, and explosion-proof properties.
- Sensori d'alta precisione: Utilizes imported sensors for sensitive induction, short response time, and accurate detection.
- Curve Drawing: Supports curve drawing functionality, allowing for easy observation of periodic gas concentration states.
Figure 4.1: Visual representation of the key features of the UT334E, including its display, alarm types, and robust design.
5. Specificazioni
The following table details the technical specifications of the UNI-T UT334E gas detector:
| Parametru | Valore / Gamma | Puntu d'allarme bassu | Puntu d'allarme altu | Risoluzione |
|---|---|---|---|---|
| Detect Gas: EX | 0 ~ 100% LEL | 20.0% LEL | 50.0% LEL | 1% LEL |
| Detect Gas: H2S | 0 ~ 100 PPM | 10.0 ppm | 35.0 ppm | 1 ppm |
| Detect Gas: CO | 0 ~ 1000 PPM | 50.0 ppm | 150.0 ppm | 1 ppm |
| Detect Gas: O2 | 0 ~ 30% VOL | 19.5% VOL | 23.5% VOL | 0.1% VOL |
| Tempu di risposta | T < 30S | |||
| Errore di visualizazione | ≤ ±5%FS | |||
| Istruzzioni | LCD liquid crystal display real-time data and system status, light, vibration, screen flicker and Real-life voice recording (Chinese and English) prompts | |||
| Ambiente di travagliu | Temperature -20℃~50℃; Humidity < 95%RH condensation | |||
| Voltage | DC3.7V (lithium battery 5000mAh) | |||
| Tempu di carica | 4h | |||
| Tempu di Standby | Can be used continuously for more than 10 hours when fully charged | |||
| Vita di Sensori | 2 anni | |||
| Dimensione fisica | 140 × 73 × 32 mm | |||
| Pesu | 215 g | |||
Specificazioni supplementari:
- Pesu di l'articulu: 1.32 liri
- Dimensioni di u pruduttu: 6.5 x 4.33 x 4.72 inch
- Materiale: Acrilonitrile Butadiene Stirene (ABS)
- Fonte di energia: Alimentatu à batteria
- Wattage: 5 watts
- Precisione di misurazione: ± 0.1%
- Certificazioni: CE, ISO 9001, RoHS, UKCA
6. Setup
6.1. Charging u dispusitivu
Before first use, fully charge the UT334E gas detector. The device is equipped with a 5000mAh lithium battery. Use a standard MicroUSB cable and a compatible power adapter (not included) to charge the device.
- Connect the MicroUSB cable to the charging port on the device.
- Connect the other end of the cable to a USB power source (e.g., wall adapter, power bank).
- The display will show a charging indicator.
- A carica dura di solitu circa 4 ore per una carica cumpleta.
Figure 6.1: The UT334E connected to a power source via MicroUSB for charging, with the battery charge indicator visible on the screen.
6.2. Accensione iniziale
After charging, press and hold the power button (usually marked with a power symbol) for a few seconds until the device powers on and the display illuminates. The device will perform a self-test upon startup.
7. Operating Instructions
7.1. Power On / Off
- Power On: Pulsà è manteneu u buttone di accensione finu à chì u schermu s'illumina.
- Spegnimentu: Tenite premutu u buttone di accensione finu à chì appare u prompt di spegnimentu, dopu cunfirmate.
7.2. Scelta di lingua
The device supports both Chinese and English interfaces. Refer to the device's menu options (typically accessible via the 'OK' or menu button) to navigate to language settings and select your preferred language.
7.3. Capisce u Display
The 2.4-inch color LCD displays real-time gas concentrations for EX, H2S, CO, and O2. It also shows battery status, time, and other operational indicators. Familiarize yourself with the layout to quickly interpret readings.
7.4. Gas Detection and Alarms
The UT334E continuously monitors the ambient air for the four specified gases. When gas concentrations exceed the preset low or high alarm points, the device will activate its quadruple alarm system:
- Alarma sonora: An audible buzzer will sound.
- Alarma luminosa: Indicator lights on the device will flicker.
- Alarma di vibrazione: U dispusitivu vibrerà.
- Screen Flashing: The display background may change color (e.g., red) and flash to draw attention to the alarm condition.
Figure 7.1: Visual representation of the quadruple alarm system, showing lights flickering, buzzer alarm, red background reminder on the screen, and body vibration.
7.5. Data Logging and Curve Drawing
The device automatically stores detection records. Users can access these records through the menu to view historical data. The curve drawing function allows for a graphical representation of gas concentration changes over time, aiding in the analysis of periodic states.
Figure 7.2: The UT334E display showing a gas concentration curve, illustrating the device's ability to track and visualize changes over time.
8. Mantenimentu
Proper maintenance ensures the longevity and accuracy of your UT334E gas detector.
- Pulizia: Asciugà u dispusitivu cù un soft, damp cloth. Do not use abrasive cleaners or solvents. Ensure no liquid enters the sensor openings or charging port.
- Cura di i sensori: Keep the sensor area clean and free from obstructions. Avoid direct contact with the sensors.
- Cura di a batteria: Recharge the battery when the low battery indicator appears. Avoid fully discharging the battery frequently. If storing for an extended period, charge the battery to approximately 50% and recharge every few months.
- calibrazione: Regular calibration is crucial for maintaining measurement accuracy. Refer to the device's menu for calibration options or contact UNI-T support for service.
- Conservazione: Store the device in a cool, dry place, away from direct sunlight, extreme temperatures, and corrosive chemicals.
9. Risoluzione di prublemi
If you encounter issues with your UT334E, refer to the following common problems and solutions:
- L'apparechju ùn s'accende micca: Assicuratevi chì a batteria sia cumpletamente carica. Se u prublema persiste, cuntattate l'assistenza.
- Letture imprecise: Check if the sensor area is clean and unobstructed. The device may require calibration. Avoid using the device in environments outside its specified operating conditions.
- Alarm constantly active: Move to a well-ventilated area to confirm if there is a real gas leak. If the alarm persists in a clean environment, the sensor might be faulty or require calibration.
- Prublemi di visualizazione: If the screen is blank or flickering abnormally, try restarting the device. Ensure the battery is charged.
- Problemi di carica: Verify the MicroUSB cable and power adapter are functioning correctly. Ensure the charging port is clean.
For problems not listed here or if troubleshooting steps do not resolve the issue, please contact UNI-T customer support.
10. Garanzia è Support
UNI-T products are manufactured to high-quality standards and are backed by a limited warranty. Please refer to the warranty card included with your product for specific terms and conditions, including warranty period and coverage details.
For technical support, service, or warranty claims, please contact UNI-T customer service through their official website or the contact information provided in your product packaging. When contacting support, please have your product model (UT334E) and purchase information ready.
UNI-T Official Websitu: www.uni-trend.com
