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Control de salas limpias y sistemas de monitoreo ambiental
Sensor de presión estática
A static-pressure pickup and transmitter package that measures cleanroom duct pressure without directly sensing the moving-air velocity head.
- Static Pressure Pickup
- Low-Range Signal Output
- Fan Control Feedback
- Sealed Duct Mounting
Introducción del producto
The duct static pressure sensor combines a properly oriented wall pickup with a low-pressure transmitter. The pickup opening is arranged to minimize direct exposure to velocity pressure, allowing the transmitter to represent duct static condition. A flexible tube connects the pickup to the protected electronics outside the duct. The resulting analog or digital signal supports supply-fan control, high-pressure alarm and diagnosis of restricted or undersupplied duct sections.
Características clave
Low-pressure signal conditioning produces a stable control value for variable-speed fans.
The transmitter stays outside the duct for accessible wiring and zero service.
Selectable ranges match branch, main-duct and plenum pressure applications.
Preocupaciones del producto del cliente
Static pressure readings are easily biased when the pickup faces the flow, leaks at the duct wall or sits in highly turbulent air.
The pickup captures velocity pressure and reports an artificially high value.A static tip or flush wall port samples perpendicular to the airflow direction.
Air leaks around the mounting hole distort the low-pressure signal.A gasketed flange seals the duct penetration around the pickup.
The fan control signal is noisy after a bend or damper.Appropriate location and transmitter filtering reduce turbulence-driven variation.
Zero calibration requires entry into the duct.The external transmitter provides accessible zero controls and removable tubing.
Aplicaciones típicas
AHU fan static-pressure controlCleanroom supply manifoldsReturn and exhaust plenumsDuct high-pressure alarms
Parámetros técnicos
Typical materials and dimensions for a duct static pressure sensor package are shown below.
| Materiales Core | 304 stainless static pickup with silicone tubing and flame-retardant polymer pressure transmitter |
|---|---|
| Panel de espesor | 45-80 mm transmitter depth |
| Ancho efectivo | Ancho del transmisor 90 - 150 mm |
| Longitud máxima | Static probes up to 250 mm |
| Acero frente a espesor | 0.5-0.8 mm 304 stainless pressure pickup |
| Densidad Core | 7900-8030 kg/m³ for stainless sensing parts |
| Conductividad térmica | 14-17 W/(m·K) for 304 stainless steel pickup |
| Superficie acabada | Satin stainless pickup with light-gray transmitter and blue pressure label |
| Tipo conjunto | Gasketed duct flange, barbed pressure tube and removable electrical terminal |
| Customization | Disponible según la aplicación prevista y el entorno operativo. |
Opciones disponibles
Flush or insertion pickupVoltage or 4-20 mA outputSelectable pressure rangesLocal LCD
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