Cleanroom Testing and Validation Instruments

Micromanometer

A high-resolution dual-port micromanometer for cleanroom pressure-cascade checks, filter pressure-drop testing and Pitot-tube duct traverses.

High-resolution low-pressure measurement.
Dual ports for cleanroom cascade verification.
Pitot velocity and volume-flow calculation.

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Product Introduction

This portable micromanometer resolves small static and differential air pressures through two color-coded pressure ports. Automatic zeroing, selectable engineering units and damping help stabilize readings at airlocks and controlled rooms. With a Pitot tube and entered duct geometry, the same instrument can calculate velocity and air volume during ventilation commissioning.

Key Features

Sensitive differential-pressure sensor resolves small room-pressure changes.

Dual ports support positive, negative and differential measurements.

Selectable damping steadies readings affected by door movement or turbulence.

Pitot input converts velocity pressure into duct air speed and flow.

Min, max and average capture supports systematic test-point review.

Rugged handheld enclosure suits qualification and maintenance routes.

Customer Product Concerns

Controlled environments depend on small pressure differences that must be measured without confusing transient fluctuations, tubing polarity or instrument drift.

Small room-pressure differentials can be obscured by sensor noise.A high-resolution low-pressure sensor with damping produces a stable displayed value.

Reversed tubing can make pressure direction difficult to interpret.Color-coded positive and negative ports make the connection polarity immediately visible.

Door movement creates short transients during cascade checks.Averaging and min/max capture distinguish the settled relationship from brief disturbances.

Duct velocity calculations add time and opportunities for arithmetic errors.Pitot mode and entered duct dimensions provide direct velocity and volume-flow results.

Typical Applications

Cleanroom pressure-cascade verificationAirlock and isolation-room testingHEPA filter pressure-drop measurementPitot-tube duct traversesHVAC commissioning and balancing

Technical Parameters

Typical portable micromanometer construction is summarized below; pressure range, damping, logging and probe accessories can be matched to the qualification method.

Core Material	Piezoresistive pressure sensor, brass pressure ports and impact-resistant polymer enclosure
Panel Thickness	Typically 2.0-3.5 mm for the molded instrument housing
Effective Width	Approximately 75-100 mm across the handheld meter body
Maximum Length	Approximately 180-230 mm for the handheld instrument body
Steel Facing Thickness	Typically 0.5-1.0 mm for optional stainless Pitot and static-pressure probes
Core Density	Approximately 1050-1200 kg/m³ for the engineered polymer enclosure
Thermal Conductivity	Approximately 0.18-0.25 W/(m·K) for the engineered polymer enclosure
Surface Finish	Dark graphite overmolded housing with blue and red pressure-port identifiers
Joint Type	Barbed dual pressure ports for flexible tubing with keyed accessory interfaces
Customization	Available based on the intended application and operating environment.

Available Options

Low- or extended-pressure rangePitot tube setStatic-pressure probesFlexible tubing kitData-logging configurationProtective carrying case

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