scope:

The purpose of this document is to help avoid problems associated with misapplied or incorrectly installed AMSs. Problems may include incorrect location, inappropriate measurement range, mismatched accompanying instrumentation and an AMS incompatible with intended application.

This guide provides an overview of permanently installed AMSs and their application. This publication does not address portable devices used to measure airflow in testand- balance applications.

It is not the intent of this manual to be used for detailed specifications; rather it serves as a guide toward understanding the various types of AMSs available and items to be considered for their proper use.

Purpose

This application guide is intended to assist designers and users with the proper application, performance considerations, selection and limitations of airflow measurement stations.

This publication provides information and important points to be considered when designing or specifying heating, ventilating and air conditioning (HVAC) and other applications in installations requiring an airflow measurement station (AMS) for use in temperatures from -30 °C to +120 °C (-20 °F to +250 °F), pressures to 250 Pa (10 in. wg) and velocities to 28 m/s (5500 fpm).