1. Introdução
Thank you for choosing the NENEN HSH-DV3A Air Duct Temperature and Humidity Sensor. This device is designed for precise environmental monitoring and management in various settings. This manual provides essential information for the safe and efficient installation, operation, and maintenance of your sensor.
Principais características:
- Precise Monitoring: Utilizes advanced detection technology to ensure accurate data collection for both temperature and humidity.
- Aplicação versátil: Suitable for a wide range of environments including homes, offices, warehouses, and greenhouses.
- Design de economia de energia: Engineered for low power consumption, contributing to economical long-term operation.
- Fácil instalação: Designed for straightforward setup, allowing for quick deployment without complex procedures.
- Robusto e confiável: Constructed with high-quality materials to ensure long-lasting stability and dependable performance under various environmental conditions.
2. Informações de segurança
Please read and understand all safety instructions before installing or operating the sensor. Failure to follow these instructions may result in electric shock, fire, or damage to the device.
- Ensure the power supply matches the specified working voltage (24 V).
- Do not expose the sensor to extreme physical shock or vibration.
- Avoid installing the sensor in locations with corrosive gases or liquids.
- Somente pessoal qualificado deve realizar a instalação e a fiação.
- Desligue a energia antes de realizar qualquer manutenção ou instalação elétrica.
3. Conteúdo da embalagem
Ao abrir a embalagem, verifique se todos os itens estão presentes e sem danos:
- NENEN HSH-DV3A Air Duct Temperature and Humidity Sensor (1 unit)
- Manual do usuário (este documento)
- (Additional mounting hardware or accessories may be included depending on the specific kit)
4. Produto acabadoview
The NENEN HSH-DV3A sensor consists of a main housing containing the electronics and a probe designed for insertion into air ducts. The probe accurately measures temperature and humidity within the airflow.

Figura 4.1: Angulado view of the NENEN HSH-DV3A sensor, showing the main housing and the elongated probe for duct insertion.

Figura 4.2: Frente view of the NENEN HSH-DV3A sensor, illustrating the probe extending downwards from the main housing.

Figura 4.3: Traseira view of the NENEN HSH-DV3A sensor, highlighting the mounting plate and cable gland connection point.
5. Especificações
| Parâmetro | Valor |
|---|---|
| Modelo | HSH-DV3A |
| Faixa de medição | -40 to 60 ℃ (-40 to 140 ℉) |
| Vol de Trabalhotage | 24V |
| Dimensões da embalagem | 1.18 x 0.79 x 0.39 polegadas |
| Peso do item | 2.2 libras |
| Fabricante | NENEN |
| Montagem necessária | Não |
| Número de peças | 1 |
6. Configuração e instalação
The NENEN HSH-DV3A sensor is designed for easy installation. Follow these steps for proper setup:
- Selecione o local: Choose a suitable location within the air duct where temperature and humidity measurements are representative of the overall airflow. Avoid areas with stagnant air or direct exposure to heat sources/coolants.
- Preparar o furo de montagem: Drill an appropriately sized hole in the air duct for the sensor's probe. Ensure the hole is clean and free of debris.
- Sensor de montagem: Insert the sensor probe into the prepared hole. Secure the main housing to the exterior of the duct using appropriate fasteners (not included, typically self-tapping screws or bolts) through the mounting plate. Ensure a tight seal to prevent air leakage.
- Fiação: Connect the sensor to your control system or data logger. Refer to the wiring diagram provided with your specific control system for correct terminal connections. The sensor requires a 24V power supply. Ensure all connections are secure and insulated.
- Ligar: Once installation and wiring are complete, apply power to the sensor. The device will begin monitoring automatically.
Observação: For optimal performance, ensure the sensor probe is fully immersed in the airflow.
7. Instruções de operação
The NENEN HSH-DV3A sensor operates continuously once powered. It provides real-time temperature and humidity data to your connected monitoring system. There are no user-adjustable settings directly on the sensor itself.
- Saída de dados: The sensor outputs data via its wired connection to your building management system (BMS), HVAC controller, or data acquisition system. Consult the documentation for your specific control system to interpret the sensor's output signals.
- Monitoramento contínuo: The sensor is designed for continuous, unattended operation, providing consistent environmental data.
8. Manutenção
Regular maintenance ensures the longevity and accuracy of your NENEN HSH-DV3A sensor.
- Limpeza: Periodically inspect the sensor probe for dust, lint, or other obstructions. Gently clean the probe surface with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Calibração: While the sensor is factory-calibrated, long-term drift can occur. If precise accuracy is critical, periodic recalibration by a qualified technician is recommended.
- Verificação de conexão: Annually inspect wiring connections for tightness and signs of corrosion.
9. Solução De Problemas
Se você encontrar problemas com seu sensor, consulte os problemas comuns e suas soluções a seguir:
| Problema | Possível causa | Solução |
|---|---|---|
| Sem saída de dados | No power; incorrect wiring; faulty sensor | Check 24V power supply; verify wiring connections; test sensor with known good power/system. |
| Leituras imprecisas | Sensor probe obstructed; improper placement; calibration drift | Clean probe; reposition sensor for better airflow; consider recalibration. |
| Leituras intermitentes | Loose wiring connections; power fluctuations | Secure all wiring connections; ensure stable 24V power supply. |
Se o problema persistir após tentar essas soluções, entre em contato com o suporte ao cliente.
10. Garantia e suporte
NENEN products are manufactured to high-quality standards. For warranty information, technical support, or service inquiries, please refer to the warranty card included with your purchase or contact your authorized NENEN dealer or customer service directly. Please have your model number (HSH-DV3A) and purchase details ready when contacting support.
For further assistance, visit our official website or contact the seller from whom you purchased this product.





