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Controle de sala limpa e sistemas de monitoramento ambiental
Sensor de VOC
A metal-oxide air quality sensor that tracks changing mixtures of volatile organic compounds and provides a compensated trend signal for ventilation or monitoring.
- Metal-Oxide VOC Detection
- Mixed-Gas Trend Signal
- Humidity Compensation
- Ventilation Control Output
Introdução do produto
The VOC air quality sensor uses a heated metal-oxide element whose surface resistance changes when reducing or oxidizing organic vapors are present. Embedded algorithms compensate for temperature and humidity effects and convert the raw response into a VOC index or equivalent concentration trend. The device is intended for changes in mixed indoor VOC load rather than identification of one specific compound. A ventilated wall or duct enclosure exposes the element to the monitored air while keeping power and communication terminals protected.
Características-chave
Temperature and humidity compensation stabilizes the index across normal room conditions.
A trend-oriented output supports demand ventilation and environmental anomaly detection.
Wall and duct formats place the sensor where solvent or cleaning-vapor changes occur.
Preocupações do produto do cliente
A broad VOC sensor reacts to mixtures and background changes, so it should not be treated as a compound-specific analytical instrument.
Users expect one VOC index to identify an individual chemical.The system presents the reading as a mixed-gas trend and uses compound-specific detectors where selectivity is required.
Humidity changes create an apparent VOC shift during HVAC transitions.Integrated humidity compensation reduces normal environmental cross-sensitivity.
A freshly installed sensor needs time to establish a stable background.Warm-up and baseline handling allow the metal-oxide element to settle before alarm evaluation.
Cleaning spray contacts the sensing surface directly.Protected diffusion openings and appropriate mounting separate the element from liquid droplets.
Aplicações típicas
Cleanroom solvent-vapor trendingCleaning process monitoringLaboratory air qualityVentilation demand indication
Parâmetros técnicos
Typical construction values for a cleanroom VOC air quality sensor are shown below.
| Material principal | Metal-oxide semiconductor sensing element on FR-4 board in flame-retardant polycarbonate enclosure |
|---|---|
| Painel de espessura | 25-45 mm housing depth |
| Largura efetiva | 80-120 mm housing width |
| Comprimento máximo | Up to 150 mm enclosure height |
| Aço enfrentando espessura | 0 mm; non-metallic sensor housing |
| Densidade Core | 1180-1220 kg/m³ for polycarbonate enclosure parts |
| Condutividade térmica | 0.19-0.22 W/(m·K) for polycarbonate housing material |
| Superfície acabado | Matte white housing with blue air-quality indicator and protected vent pattern |
| Tipo conjunto | Snap-fit wall enclosure with rear terminal block and replaceable vent filter |
| Customização | Disponível com base na aplicação pretendida e no ambiente operacional. |
Opções disponíveis
VOC index or equivalent concentration outputWall or duct mountAnalog or digital communicationIntegrated temperature and humidity compensation
Planning a VOC Sensor specification?
Envie-nos as suas dimensões, condições de instalação, metas de desempenho e acabamento de superfície necessário.
