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Sistemas de Distribuição de Ar para Sala Limpa
Z Estação de medição de fluxo de ar do ducto
A permanently installed multi-point sensing assembly that converts representative duct velocities into continuous volumetric airflow and temperature data.
- Multi-Point Velocity Traverse
- Low-Airflow Measurement
- Remote Digital Transmitter
- Supply or Exhaust Monitoring
Introdução do produto
The duct airflow measuring station uses several bead-in-glass thermal sensors distributed across the duct cross-section to capture a representative velocity traverse. Each node compares a heated element with a reference temperature element, and the remote transmitter combines the readings with the entered duct area to calculate volumetric or mass airflow. Stainless-steel probes, plenum-rated cables and an external display enclosure suit permanent installation where operators need more than a one-time balancing reading. Analog and network outputs can feed room-pressure control, air-change verification or maintenance trending.
Características-chave
Thermal-dispersion measurement operates at the low duct velocities common in ventilation and pressure-tracking branches.
A remote transmitter displays airflow and temperature while isolating electronics from the active duct section.
Selectable analog and serial communications support connection to airflow alarms or a building control system.
Preocupações do produto do cliente
Reliable airflow control depends on a measurement point that represents the whole duct profile and remains stable at low velocity.
An elbow or transition creates a skewed velocity profile across the measuring plane.A multi-node probe array averages velocities over the duct area instead of reporting one unrepresentative point.
Pitot-style pressure signals become too small for dependable low-flow tracking.Thermal-dispersion sensor nodes retain useful resolution at substantially lower air velocities.
A failed probe remains unnoticed while the control loop continues using a false total.Node-status diagnostics and configurable alarms identify sensor or transmitter faults for maintenance.
Temporary balance readings do not show later drift caused by filter or fan changes.Permanent measurement provides continuous total airflow and a recordable signal for trend comparison.
Aplicações típicas
Cleanroom supply-air verificationReturn and exhaust airflow trackingLaboratory pressure-control systemsOutdoor-air delivery monitoringAir-change-rate performance trending
Parâmetros técnicos
Typical construction and dimensional ranges for a permanent multi-point duct airflow station are listed below.
| Material principal | 304 stainless-steel probe tubes with hermetically sealed thermistor nodes and plenum-rated sensor cables |
|---|---|
| Painel de espessura | 1.0–2.0 mm stainless probe supports and mounting plates |
| Largura efetiva | 100–2500 mm duct traverse width using one or more probes |
| Comprimento máximo | Up to 2500 mm active probe length for rectangular duct arrays |
| Aço enfrentando espessura | 1.0–2.0 mm stainless mounting flange and probe bracket |
| Densidade Core | Approximately 8000 kg/m³ for 304 stainless-steel probe components |
| Condutividade térmica | Approximately 14–16 W/(m·K) for 304 stainless-steel probe components |
| Superfície acabado | Clean passivated stainless probes with powder-coated remote transmitter enclosure |
| Tipo conjunto | Duct-insertion compression flange with sealed cable glands to a remote transmitter |
| Customização | Disponível com base na aplicação pretendida e no ambiente operacional. |
Opções disponíveis
Round-duct single-probe configurationRectangular multi-probe traverse arrayAnalog 0–10 V or 4–20 mA outputsBACnet or Modbus communication interface
Planning a Duct Airflow Measuring Station specification?
Envie-nos as suas dimensões, condições de instalação, metas de desempenho e acabamento de superfície necessário.
