Cleanroom Testing and Validation Instruments

Anemometer

A handheld rotating-vane anemometer for measuring air velocity, temperature and calculated volume flow at cleanroom grilles, diffusers and ventilation openings.

Area-averaged vane sensing for turbulent outlet flow.
Telescopic articulating reach for ceiling measurements.
Velocity, temperature and calculated air volume.

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Product Introduction

This anemometer uses a low-friction rotating vane to average airflow across a practical circular sensing area. The handheld display converts vane speed into velocity and, when an outlet area is entered, volumetric flow. An articulating telescopic shaft reaches overhead grilles and awkward openings while data averaging stabilizes readings in turbulent supply and return streams.

Key Features

Large rotating vane averages turbulent airflow over a practical area.

Articulating telescopic probe reaches overhead and recessed openings.

Integrated temperature sensing adds context to airflow readings.

User-entered area enables direct volume-flow calculation.

Timed and multi-point averaging supports repeatable traverses.

Handheld logging stores measurements for later reporting.

Customer Product Concerns

Grille and diffuser measurements require a sensor that averages turbulence, stays aligned with the stream and reaches overhead points without disturbing the outlet.

Turbulent flow at a grille can make small sensors fluctuate.A large rotating vane spatially averages the stream and selectable time averaging smooths the display.

Overhead diffusers are difficult to reach while keeping the sensor aligned.A telescopic shaft and articulating head position the vane perpendicular to the flow.

Velocity alone does not show total flow through an outlet.Stored duct and grille areas allow the meter to calculate and display volumetric flow.

Manual records can lose the relationship between points in a traverse.Onboard logging and point statistics preserve individual, average and peak readings.

Typical Applications

Cleanroom supply and return grille surveysHVAC testing and balancingDiffuser airflow troubleshootingExhaust opening velocity measurementVentilation commissioning and maintenance

Technical Parameters

Typical handheld rotating-vane construction values are shown below; vane diameter, probe reach and logging functions can be selected for the survey method.

Core Material	Low-friction polymer vane rotor, protective ring, telescopic stainless probe shaft and overmolded handheld electronics
Panel Thickness	Typically 2.0-3.0 mm for the molded instrument housing
Effective Width	Approximately 100 mm across the rotating-vane sensing head
Maximum Length	Approximately 1000-1300 mm with the telescopic probe fully extended
Steel Facing Thickness	Typically 0.5-1.0 mm for the telescopic stainless probe sections
Core Density	Approximately 7800-8000 kg/m³ for stainless telescopic components
Thermal Conductivity	Approximately 14-17 W/(m·K) for stainless probe components
Surface Finish	Dark graphite overmolded meter, black vane head and satin stainless telescopic shaft
Joint Type	Articulating vane-head pivot with locking telescopic sections and keyed probe connector
Customization	Available based on the intended application and operating environment.

Available Options

100 mm or compact vane headsArticulating telescopic probeWireless display communicationProtective probe caseTripod or extension supportData download software

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