Complete duct air velocity sensor with stainless probe, gray head and blue direction arrow

Sistem Kawalan Bilik Bersih dan Pemantauan Alam Sekitar

Sensor Kelajuan Udara

An insertion-type hot-film sensor that measures cleanroom duct air velocity directly and provides a linear signal for control or monitoring.

Hot-Film Velocity Measurement
Adjustable Probe Insertion
Selectable Velocity Ranges
Analog Output Options

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Pengenalan Produk

The duct air velocity sensor places a heated-film element in the moving airstream and determines velocity from the heat removed by the flow. A graduated stainless probe and adjustable flange position the sensing tip away from the duct boundary layer. Direction markings help align the element with the airflow, while selectable ranges match low- and high-velocity duct applications. The electronics provide a linear voltage or current output and can include a separate temperature signal for HVAC diagnostics.

Ciri-ciri Utama

Hot-film measurement reads velocity directly without a separate differential pressure transmitter.

An adjustable mounting flange places the sensing element at the selected duct depth.

Directional markings prevent installation with the element facing the wrong way.

Selectable output ranges improve signal resolution for different cleanroom duct velocities.

Kebimbangan Produk Pelanggan

A duct velocity sensor can be accurate only when its probe is oriented correctly and located outside strong turbulence or the wall boundary layer.

The probe is installed too close to the duct wall and reads a low local velocity.Graduated insertion and an adjustable flange place the element at a representative depth.

The sensor is rotated away from the airflow direction.A visible direction arrow aligns the hot-film element with the moving air.

One wide range gives weak resolution at normal low-speed operation.Selectable velocity ranges match the electrical span to the actual duct condition.

Dust accumulation changes thermal response over time.A smooth protected hot-film design reduces exposed geometry and allows planned inspection.

Permohonan yang biasa

Cleanroom supply-air ductsReturn and exhaust branchesAHU airflow verificationLow-velocity process ventilation

Parameter teknikal

Typical materials and dimensions for an insertion hot-film duct air velocity sensor are shown below.

Bahan Teras	Hot-film sensing element in 304 stainless steel probe with ABS and polycarbonate electronics head
Ketebalan Panel	35-55 mm electronics-head depth
Lebar berkesan	70-100 mm housing width
Panjang maksimum	Up to 210 mm adjustable probe length
Keluli Menghadapi Ketebalan	0.5-0.8 mm stainless steel probe tube
Ketumpatan teras	7900-8030 kg/m³ for stainless probe components
Kekonduksian Terma	14-17 W/(m·K) for 304 stainless steel probe
Kemasan permukaan	Satin stainless probe with light-gray housing and blue airflow-direction marking
Jenis Bersatu	Adjustable duct flange with gasket, M16 cable entry and screw terminals
Penyesuaian	Boleh didapati berdasarkan aplikasi yang dimaksudkan dan persekitaran operasi.

Pilihan yang boleh didapati

Low, medium or high velocity rangeVoltage or 4-20 mA outputAir temperature outputHeavy-environment probe

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