Extech AN300 Instruction Manual

USER GUIDE

Large Vane CFM/CMM

Thermo Anemometer

Model AN300

Introduction

Congratulations on your purchase of the Extech AN300 Vane Airflow Anemometer.

This instrument measures Air Velocity, Air Flow (volume), and Air Temperature. The large, easy to read backlit LCD includes primary (upper) and secondary (lower) displays plus numerous status indicators. The optional cone and funnel airflow adaptors allow for quick volume measurements. This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Please visit the Extech Instruments website (www.extech.com) to check for the latest version of this User Guide, Product Updates, and Customer Support.

CAUTIONS

Improper use of this meter can cause damage to the meter and personal injury. Read and understand this user manual before operating the meter.

Inspect the condition of the probe and the meter for any damage before operating the meter. Repair or replace damage before use.

If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

This device should not be made available to children. It contains hazardous objects as well as small parts that can be accidentally swallowed. The meter’s batteries and packing material can also be dangerous to children.

In the event that the meter is to be unused for an extended period of time, remove the batteries to protect against battery leakage.

Expired or damaged batteries can be hazardous if allowed to come in contact with skin. Use suitable hand protection in such cases.

Do not short circuit batteries or put batteries in fire.

2	AN300 EU EN v1.1 1/13

Descriptions

Meter Description (front)

1.Top line LCD display reading

2.Bottom line LCD display reading

3.U/mode AVG and up arrow button

4.L/mode and down arrow button

5.ON OFF (Power) and SET button

6.HOLD, MAX MIN, and left arrow (Enter) button

7.Unit of measure symbol for lower display row

8.Unit of measure symbol for upper display row

9.Air Velocity Vane

Meter Description (rear)

10.Air temperature sensor

11.Battery compartment

3		AN300 EU EN v1.1 1/13

Brief Keypad Description

SET

HOLD

MAX/MIN

Press momentarily to switch the meter ON or OFF. Press and hold this button for 2 seconds to enter or exit the Setup mode (refer to SETUP mode section for details).

o Press momentarily to freeze the displayed reading (HOLD icon switches ON); press again momentarily to exit the HOLD mode (HOLD icon switches OFF)

oPress and hold for 2 seconds to display the MIN (minimum) reading; press and hold again to display the MAX (maximum) reading; Press and hold a third time to exit

oThis button is also used in the AVERAGE mode (for recording readings one at a time or for a ‘timed’ recording session) and in the SETUP mode (for configuring the meter). Please review the AVERAGE and SETUP mode sections for details

U/mode

AVG Press and hold for 2 seconds to access the Multi Point Average and Timed Average

▲modes (the AVG icon switches ON). Detailed instructions for these modes are provided later in this guide). In the Setup mode press to select a category or to increase a value (refer to SETUP mode section)

L/mode

▼Press to toggle the lower display between air temperature and air volume readings; Also used in the Multi Point Average, Timed Average, and Setup modes; refer to the AVERAGE and SETUP modes sections later in this guide

U/mode

AVG

+ ▲ With the meter switched OFF, press and hold these two buttons to disable Auto Power OFF. Detailed AUTO POWER OFF (Sleep mode) instructions are provided later in this guide

4	AN300 EU EN v1.1 1/13