Extech AN400 Operating Manual

User's Guide

Cup Thermo-Anemometer
Model AN400

Introduction

Congratulations on your purchase of the Extech Cup Thermo-Anemometer. The AN400
measures air velocity in five units of measure: feet per minute (ft/min), meters per
second (m/sec), miles per hour (MPH), kilometers per hour (km/hr), & nautical miles per
hour (knots). The low-friction cup vane freely rotates in response to air flow. An internal
thermistor allows the AN400 to measure air temperature in Centigrade or Fahrenheit
units. This meter is shipped fully tested and calibrated and with proper use will provide
years of reliable service.

Meter Description

1. Cup vane

2. Temperature sensor

3. POWER: On/Off
Logger: Store data with “REC” in display
▲: Step through and recall stored data

4. HOLD: Freeze display
Unit: Select measured units

5. REC: Enter Max/Min or Logger mode

oC/o

F: Select measured units

▼: Step through and recall stored data

6. LCD display

7. Battery compartment cap

2

AN400 V3.0 12/06