Model AN100 Version 2.0 02/06

2

Introduction

Congratulations on your purchase of the Extech AN100 CFM/CMM Thermo

Anemometer. This instrument measures Air Velocity, Air Flow (volume) and

Temperature. The large, easy-to-read backlit LCD includes primary and secondary

displays plus numerous status indicators. The meter is shipped fully tested and

calibrated and with proper use will provide years of reliable service.

Meter Description

1.

LCD Display

2.

Vane

3.

Rubber Boot

4.

Meter

5.

Power On/Off

6.

Area

7.

AVG

8.

Backlight

9.

Temperature Buttons

10. Airflow/Velocity Buttons

Keypad

•

AUTO POWER OFF

Press to turn the meter ON or OFF

•

MAX/MIN

Used to record and store the highest, lowest and average airflow or

velocity readings.

◄ (LEFT) also serves as change decimal point button in AREA mode

•

UNITS

Press to select the mode of operation. In FLOW mode, the meter displays

air volume. In VELOCITY mode, the meter displays air speed.

▲(UP) also serves as increase number button in AREA mode.

•

AVG

Used to Average multiple readings in FLOW or VELOCITY mode. Up to 20

readings can be averaged.

•

HOLD

Press to freeze the displayed reading. Press again to unlock display. This

button also functions as the ►RIGHT scroll button in AREA mode and RECALL

mode.

•

AREA

Press and hold to manually enter the area of a duct in CFM or CMM mode

•

NEXT

In AREA mode, used to select memory locations 1-8.

•

Press to turn the backlight on/off

•

MAX/MIN (Temperature)

Used to record and store the highest, lowest readings for

air temperature.

•

°C °F HOLD (Temperature)

Press to freeze the displayed temperature reading.

Press again to unlock the display. Press and hold for 3 seconds to switch between

°C and °F. Meter will beep twice to indicate change.

Battery compartment located on the back of the instrument. The rubber protective jacket

must be removed from the meter to access the compartment.