UEi DAFM3B Instruction Manual

O

P

E

N

C

L

O

S

E

CFM

VOL

LW

MODE

HOLD

START
STOP

EXIT

[HOLD TO EXIT

AVG MODE]

LW-D-AREA

ON / OFF

(SET)

MAX / MIN

AVG

DAFM3B

INSTRUCTION MANUAL

ENGLISH

Digital Air Flow Meter

DAFM3B

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TABLE OF CONTENTS

Introduction ................................................................................................3

Safety ..........................................................................................................3

Controls and Indicators ..............................................................................4

Figures and Components ............................................................................5

Operating Instructions

Disable Auto Power Off ....................................................................5

Selecting Units..................................................................................5

Basic Measurement ...................................................................... 5-6

Measuring Air Volume (CFM or CMM)

Entering Duct Information ................................................................6

Timed Average Air Volume ...............................................................7

Estimating FREE AREA (Effective area) of a Grill ......................................8

Maintenance

Low Battery ......................................................................................9

Cleaning ............................................................................................9

Battery Replacement ........................................................................9

Specifications ...........................................................................................10

Warranty and Service Information ..........................................................11

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3

INTRODUCTION

The DAFM3B Anemometer/Psychrometer is designed with 6 HVAC/R
parameters in one instrument. These are included in a portable, battery­operated instrument for measuring humidity, air temperature, dew point,
wet bulb, air velocity and air volume. The vane probe includes
sensors for velocity, temperature and humidity.

FEATURES

• Measures Air Velocity, Temperature, and Relative Humidity (RH%)

• Calculates Wet-bulb temperature, dew point, and air volume
(CFM, CMM)

• 3” diameter air vane

• Timed accumulative average for air volume with one hour maximum

• Min/Max and Hold

• English/Metric Scales

• Fast response

• Auto-power off (can be disabled)

• Low battery indicator

INCLUDED

• DAFM3B Meter

• Air vane probe

• Battery (1 x 9V)

• User manual

• Hard carrying case

SAFETY NOTES

Before using this meter, read all safety information carefully. In this
manual the word “WARNING” is used to indicate conditions or actions
that may pose physical hazards to the user. The word “CAUTION” is
used to indicate conditions or actions that may damage the instrument.

CAUTION! Do not strike the fan portion of the probe.

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