Universal Enterprise DAFM3 Installation Manual

INSTRUCTION MANUAL

DAFM3

Digital Air Flow Meter

1-800-547-5740 • Fax: [phone]

www.ueitest.com • email: [e-mail]

TABLE OF CONTENTS

Introduction .......................................................................................... 2

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

Controls ............................................................................................... 4-5

Operating Instructions

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

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

Ft Range ........................................................................................... 5

INCH ................................................................................................. 5

CM ....................................................................................................5

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

MIN/MAX/AVG ................................................................................ 6

Velocity with Average ....................................................................6

Air Volume Measurement ......................................................... 6-7

Entering Free Area ..................................................................... 7-8

Air Volume: Measurement ............................................................ 9

Low Battery ...................................................................................11

Maintenance

Periodic Service ............................................................................12

Cleaning .........................................................................................12

Battery Replacement ....................................................................12

Troubleshooting ................................................................................13

Specifications ....................................................................................14

Warranty and Service Information ...........................................15

i

Introduction

The DAFM3 Anemometer/Psychrometer meter is designed with 6
HVAC/R must have parameters in one instrument. These are included
in a portable battery operated instrument for measuring Humidity,
Air temp., Dew Point, Wet Bulb, Air Velocity and Air Volume. The
sensor is built into the remote fan and is specially protected by a twist
cap. While in operation, open the cap for accurate temperature and
humidity readings.

Features include

• Measures Air Velocity, Temperature and Humidity

• Calculate Wet Bulb, Dew Point, and Air Volume (CFM, CMM)

• Protective twist cap for temperature/humidity sensor

• 8-Point Average for Air Velocity

• 30 Second Average for Air Volume

• Total Volume from multiple outlets

• Large LCD digital display

• Professional remote vane

• English/Metric scales

• Low battery indication

• Fast response

• Microprocessor circuitry for reliability

• Auto Power Off selectable

• Powered by 1 “9V” battery

Material Supplied

• DAFM3 Anemometer/Psychrometer Meter

• Remote Vane

• Batteries (1)9V

• User manual

• Hard carrying case

2

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 this instrument.

CAUTION!

Objects striking the fan may damage meter.

IMPORTANT NOTE:

1. Rotate the protective cover in the center of the fan to open before

measurement to ensure the measured data is correct.

CLOSED

2. The fan and meter are sold as a kit and are calibrated to each
other. Please don’t connect the fan with another DAFM3 or other
similar anemo-psychrometers because the characteristic of each
fan is different.

OPEN

3

Controls and Indicators

1. 2. 3.

4. 5.

6.

8.7.

1. ON/OFF: Turns ON the meter with auto-sleep mode. Turns OFF

the meter at any mode.
NOTE: When the meter is OFF, press more than four seconds to

enter “UNITS” selection.

2. MODE: Press to select different modes (Temp, DP, WB, RH,
Velocity). Press and hold until beep to select “VOLUME”

function.

3. ENTER: To confirm the setting and calibration.

NOTE: Also used to recall values stored in memory for multi-
point average.

4. MIN/MAX/AVG and UP: Press to view Minimum, Maximum,
and Average value.

• To increase digit during setup for volume.

5. LW-D-AREA: Press to scroll through options for entering area.
Length/Width (LW) for open rectangular duct, Diameter (D) for

open round ductwork, and Area (A) to enter the specified grill
free area (Ak) information.

5

4