Air Velocity And Air Flow calibration

ISOLAB has the capability for traceable calibration of air velocity and air flow since 2005 by using a universal wind tunnel with the capacity of up to 20 meters/second air velocity. This state of the art wind tunnel is accurately designed to prevent any loss of air source, typically uses Pitot Tube Pressure Principle with static pressure inside the wind tunnel column and variable flow velocity pressure.

A tube placed in a duct facing the direction of the flow will measure the total pressure in the duct. If frictional losses are neglected, the mean total pressure at any cross section throughout the duct system is constant. Static pressure can only be determined accurately by measuring it in a manner such that the velocity pressure has no influence on the measurement at all. This is carried out by measuring it through a small hole at the wall of the duct or a series of holes positioned at right angles to the flow in a surface lying parallel to the lines of flow.

The successful differential pressure measurement with accurate and stable flow column is able to determine accurate air velocity and air flow of the test instruments. Our calibration and measurement results is in conformance with ASHRAE Standard 62 (Ventilation for Acceptable Indoor Air Quality) requirements.

Our Air Velocity and Air Flow Calibration Capabilities includes:

IN-HOUSE AIR VELOCITY AND AIR FLOW CALIBRATION SERVICES
  • Thermo-Anemometers
  • Vane type Anemometers
  • CFM Meters
  • Air Velocity Meters
  • Air Flow Meters
  • Air Velocity Meters with Impeller type Sensors
  • Air Velocity Meters with Pitot Principles
  • Hot-wire Anemometers
  • Air Velocity Transmitters
  • Duct Air-Flow measurement Balometers
ON-SITE AIR VELOCITY AND AIR FLOW CALIBRATION SERVICES
  • In-situ Air Velocity and Air Flow measurements by comparison techniques
  • Air Velocity Transmitters
  • Clean room differential Air Pressure measurements.
list of calibration and measurement service