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 sulla 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 operativo: Use the device within the specified temperature and humidity ranges. Avoid extreme conditions.
- Rischio di 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 della batteria: Use only the specified battery type. Do not expose the battery to high temperatures or attempt to disassemble it.
- Protezione del sensore: Avoid exposing sensors to high concentrations of gas for prolonged periods, as this may damage them or reduce their lifespan.
- Manutenzione: Only qualified personnel should perform repairs or advanced maintenance.
- Magazzinaggio: Store the device in a clean, dry environment away from direct sunlight and corrosive substances.
3. Prodotto finitoview
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. Caratteristiche principali
The UT334E gas detector incorporates several features to enhance its functionality and user experience:
- Supporto multilingua: Switch between Chinese and English display interfaces and voice prompts.
- Sistema di allarme quadruplo: Features sound, light, vibration, and screen flashing for comprehensive alarm indications.
- Batteria ad alta capacità: Equipped with a 5000mAh built-in lithium battery for extended operation.
- Archiviazione dati: Automatic storage of records that can be viewed eliminati direttamente sul dispositivo.
- Display LCD a colori: A 2.4-inch color LCD display provides clear visualization of gas detection indicators.
- Costruzione durevole: Realizzato in plastica tecnica ad alta resistenza, offre proprietà anti-compressione, anti-caduta e anti-esplosione.
- Sensori ad alta precisione: Utilizza sensori importati per un'induzione sensibile, tempi di risposta brevi e rilevamento accurato.
- 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. Specifiche
The following table details the technical specifications of the UNI-T UT334E gas detector:
| Parametro | Valore / Intervallo | Punto di allarme basso | Punto di allarme alto | Risoluzione |
|---|---|---|---|---|
| Detect Gas: EX | 0~100% LIE | 20.0%LEL | 50.0%LEL | 1%LEL |
| Detect Gas: H2S | Da 0 a 100 ppm | 10.0 ppm | 35.0 ppm | 1 ppm |
| Detect Gas: CO | Da 0 a 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 |
| Tempo di risposta | T < 30S | |||
| Errore di visualizzazione | ≤ ±5%FS | |||
| Istruzioni | 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 lavoro | Temperature -20℃~50℃; Humidity < 95%RH condensation | |||
| Volume di eserciziotage | DC3.7V (lithium battery 5000mAh) | |||
| Tempo di ricarica | 4h | |||
| Tempo di standby | Can be used continuously for more than 10 hours when fully charged | |||
| Durata del sensore | 2 anni | |||
| Dimensione fisica | Dimensioni: 140 × 73 × 32 mm | |||
| Peso | 215g | |||
Specifiche aggiuntive:
- Peso dell'articolo: 1.32 libbre
- Dimensioni del prodotto: 6.5 x 4.33 x 4.72 pollici
- Materiale: Acrilonitrile Butadiene Stirene (ABS)
- Fonte di energia: Alimentato a batteria
- Cosatage: 5 watt
- Precisione della misurazione: ±0.1%
- Certificazioni: CE, ISO 9001, RoHS, UKCA
6. Impostazione
6.1. Carica del dispositivo
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.
- Collegare il cavo MicroUSB alla porta di ricarica del dispositivo.
- 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.
- In genere, per una ricarica completa occorrono circa 4 ore.
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. Istruzioni per l'uso
7.1. Accensione/spegnimento
- Accensione: Tieni premuto il pulsante di accensione finché lo schermo non si accende.
- Spegni: Tenere premuto il pulsante di accensione finché non viene visualizzato il messaggio di spegnimento, quindi confermare.
7.2. Selezione della 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. Comprensione del 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:
- Allarme sonoro: An audible buzzer will sound.
- Allarme luminoso: Le spie luminose sul dispositivo lampeggeranno.
- Allarme vibrazione: Il dispositivo vibrerà.
- Schermo lampeggiante: 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. Manutenzione
Proper maintenance ensures the longevity and accuracy of your UT334E gas detector.
- Pulizia: Pulire il dispositivo con un panno morbido, damp cloth. Do not use abrasive cleaners or solvents. Ensure no liquid enters the sensor openings or charging port.
- Cura del sensore: Keep the sensor area clean and free from obstructions. Avoid direct contact with the sensors.
- Cura della 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.
- Magazzinaggio: Store the device in a cool, dry place, away from direct sunlight, extreme temperatures, and corrosive chemicals.
9. Risoluzione Dei Problemi
If you encounter issues with your UT334E, refer to the following common problems and solutions:
- Il dispositivo non si accende: Assicurati che la batteria sia completamente carica. Se il problema persiste, contatta 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.
- Allarme costantemente attivo: 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.
- Problemi di visualizzazione: If the screen is blank or flickering abnormally, try restarting the device. Ensure the battery is charged.
- Problemi di ricarica: 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 e supporto
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 Ufficiale Websito: www.uni-trend.com
