Fieldpiece AAT3 - Hot-wire Anemometer & Psychrometer Acce User Manual download pdf

01 03 0602 0504

07 09 1208 1110

Quick Start

1. Connect AAT3 to Fieldpiece meter.

2. Select mVDC range on meter.

3. Remove vinyl slip cover from the

probe tip.

4. Select desired switch position on

AAT3 for temperature, %RH, or air

velocity.

5. Read your measurement directly on

the display of the Fieldpiece meter.

Certiﬁcations

C-Tick (N22675)

WEEE

RoHS Compliant

Description

Your AAT3 is a portable,

psychrometer accessory head, with a

built in hot wire anemometer.

The compact probe tip makes

directly measuring in ducts a breeze.

The 38"(96cm) telescopic probe with

laser etched ruling and flattened

edges allows you to locate proper

measurement points within a duct and

ensures that your probe is properly

aligned for air velocity measurements.

The AAT3 can measure percent

relative humidity, dry bulb, and air

velocity and can calculate wet bulb

and dew point.

The AAT3 snaps directly onto the

Fieldpiece HS series DMMs. For other

meters, use Fieldpiece ADLS2 test

leads or AHDL1 handle adapter.

Use your AAT3 with the HVAC Guide

to easily calculate in-duct CFM or

to perform Target Evaporator Exit

Temperature tests and get accurate

Target Superheat calculations.

Go wireless with your AAT3 by

using Fieldpiece wireless transmitters

(ET2W/EH2W) to send measurements

over-the-air to Fieldpiece wireless

receivers (HG3, LT17AW, EH4W)

anywhere on the jobsite.

Fieldpiece

In-Duct

Psychrometer

and Air Velocity

Head

Model AAT3

OPERATOR'S MANUAL

How to Use

General Instructions

1. Remove sensor cap from the telescoping

probe tip.

2. Connect directly onto any Fieldpiece

HS multimeter, data logget or the HG3 HVAC

guide. For most Fieldpiece SC and LT meters,

use Fieldpiece ADLS2 test leads plugged into

the COM and VΩ jacks.

3. Select mVDC range on multimeter.

4. Set switch position of AAT3 to °F and°C,

Ft/min and M/s, or %RH.

a.) For temperature set temp type switch

to DRY BULB, WET BULB or DEW POINT.

b.) For velocity measurements wait for 10

seconds as the AAT3 warms up.

5. Read the measurement directly on

the multimeter display.

What is Free Area?

How Do I Get It?

Free Area is the total area through

which air can ow on either a supply

outlet or a return grille. Free area

is also some times referred to as

"eective area" or "see through area."

If there is no grille or restriction on

the area through which air is owing

then the free area is equal to the actual

area. This would be the case if you are

performing an in-duct measurement

or if you were to remove the grille

from a supply or return.

If you are measuring airow where

there is an obstruction present then

the free area is the total area minus

area covered by the ns or grating.

Free Area is published by grille

manufacturers and is the most

accurate representation of the Free

Area of a duct. Use manufacturer's

data whenever available.

Speciﬁcations

Operating environment:

Air Velocity: -4°F to 140°F (-20°C to 60°C)

Temperature: -4°F to 140°F (-20°C to 60°C)

Relative humidity: 32°F to 131°F (0 to 55°C)

Storage temp: -4°F to 140°F (-20°C to 60°C) <80%

R.H. (Batteries removed)

Output impedance: approx. 1KΩ

Temperature coecient: 0.1 x (specied accuracy)

per °C (<18°C or >28°C) (<64°F or >82°F)

AIR VELOCITY

Range: 40-3940 ft/min (0.20-20.00 m/s)

Note 1: To use full range AAT3 must be connected to a

DMM with a 4000 mVDC range or greater.

Note 2: For m/s, divide the reading on the display by

10 for actual measurement. Tip: Move the decimal

point one place to the left.

Accuracy: ± (5%+1 dgt) reading or ± (1%+1dgt)

full scale.

RELATIVE HUMIDITY

Range: 0% to 100% RH

Accuracy:

±2.5% @ 73.4°F (23°C), 10% to 90% RH

±5% @ 73.4°F (23°C), <10% RH, >90% RH

Sensor Response Time: 60 seconds typical for 90%

of total range.

Sensor Hysteresis: ±1%RH typical

TEMPERATURE

Range: -4°F to 140°F (-20°C to 60°C)

Accuracy: ±1°F 32°F to 113°F

±2°F -4°F to 32°F, 113°F to 140°F

±0.5°C 0°C to 45°C

±1°C -20°C to 0°C, 45°C to 60°C

Sensor type:

Air velocity: Tiny glass bead thermistor.

Relative Humidity: Capacitance polymer lm.

Temperature: Precision thermistor.

Battery: 9V

Battery life: 20 -35 hours typical

Battery indication: Red Lo Batt LED

Auto Power o: after 15 minutes of inactivity if APO

is active.

Dimensions: 144mm(H) x 67mm(W) x 32mm(D).

Weight: approx. 240g including battery.

Maintenance

Clean the exterior with a dry cloth.

Do not use liquid.

Battery Replacement

When Lo Batt LED lights up replace

old battery with new 9V battery.

Sensor Care

When not in use it is best to protect

this sensors with the vinyl slip cover

included with the AAT3.

Extreme conditions or exposure to

solvent vapors may oset the RH%

sensor. If this happens, place the

sensor in a controlled envrionment of

75%RH and between 68°F - 86°F for a

period of 24 hours.

To create a 75%RH environment

moisten a small amout of table salt,

in an open container such as a clean

2 liter bottle cap.

Place the container with the salt

solution and the AAT3 probe in a

sealable plastic bag, and leave the bag

in a room temperature location where

it will not be disturbed for 24 hours.

Note: It is important that the salt

solution does not come in direct

contact with the sensor, as this may

permenantly damage the sensor.

Optional accessories

RCONE1 and AAT3 working with

ET2W and HG3 to wirelessly log

Wetbulb for target superheat testing.

AAT3

In-Duct

Psychrometer

& Air Velocity

Head

LO BATTAVG

ENGLISH

ENGLISH METRIC

RH%

Ft/min

°F

RH%

M/s

°C

METRIC

DRY BULB

WET BULB

DEW POINT

AVG

NORMAL

AUTO OFF

Limited Warranty

This meter is warranted against

defects in material or workmanship

for one year from date of purchase.

Fieldpiece will replace or repair the

defective unit, at its option, subject

to verication of the defect.

This warranty does not apply to

defects resulting from abuse, neglect,

accident, unauthorized repair,

alteration, or unreasonable use of

the instrument.

Any implied warranties arising

from the sale of a Fieldpiece product,

including but not limited to implied

warranties of merchantability and

tness for a particular purpose, are

limited to the above. Fieldpiece shall

not be liable for loss of use of the

instrument or other incidental or

consequential damages, expenses, or

economic loss, or for any claim of such

damage, expenses, or economic loss.

State laws vary. The above

limitations or exclusions may not

apply to you.

For Service

In the USA, call Fieldpiece

Instruments for one-price-x-all out of

warranty service pricing. Send check or

money order for the amount quoted.

Send the meter freight prepaid to

Fieldpiece Instruments. Send proof

of date and location of purchase for

in-warranty service. The meter will be

repaired or replaced, at the option of

Fieldpiece, and returned via least cost

transportation. Outside of the USA,

please visit www.eldpiece.com for

service contact information.

www.eldpiece.com

©Fieldpiece Instruments, Inc 2015;v13

AAT3 w/ ET2W

transmitting

wirelessly to HG3

ARH5

In-Duct

Psychrometer

Head

AUTO OFF

1%RH/mVDC

1°F/mVDC

1°C/mVDC

LO BATT

DEW POINT

%RH

WET BULB

TEMP

°F

°C

OFF

ET2W

LO BATT

SEND

RECEIVE

Wireless

Transmitter

SYNC

Clear

Input

Output

Recall

Enter

Save

Sync

SETUP

Target

Evaporator

Logger

Light

Exit Temp

CFM

Display

Superheat

SubcoolingCombustion

HVAC Guide

CheckMe!

Fieldpiece

HG3

Data

Service

Target

Targe

arget

rget

get

Evapor

ator

ato

Exit T

Exit

Tar

Evaporat

t Temp

INPUT FORM

SH Table: Standard

Refrigerant: R-22

OD Dry Bulb: 85.4°F

Return WB: 63.0°F

SL Pressure: 52.4psig

SL Temp: 45.4°F

CustomerID: __JONES123

ET2W

LO BATT

SEND

RECEIVE

Wireless

Transmitter

SYNC

Clear

Input

Output

Recall

Enter

Save

Sync

SETUP

Target

Evaporator

Logger

Light

Exit Temp

CFM

Display

Superheat

SubcoolingCombustion

HVAC Guide

CheckMe!

Fieldpiece

HG3

Data

Service

Exit T

Exit

Exi

Target

arget

rget

Targe

ator

ato

ator

Tar

Evapor

t T

emp

INPUT FORM

SH Table: Standard

Refrigerant: R-22

OD Dry Bulb: 85.4°F

Return WB: 63.0°F

SL Pressure: 52.4psig

SL Temp: 45.4°F

CustomerID: __JONES123

AAT3

In-Duct

Psychrometer

& Air Velocity

Head

LO BATTAVG

ENGLISH

ENGLISH METRIC

RH%

Ft/min

°F

RH%

M/s

°C

METRIC

DRY BULB

WET BULB

DEW POINT

AVG

NORMAL

AUTO OFF

ET2W

LO BATT

SEND

RECEIVE

Wireless

Transmitter

SYNC

Clear

Input

Output

Recall

Enter

Save

Sync

SETUP

Target

Evaporator

Logger

Light

Exit Temp

CFM

Display

Superheat

SubcoolingCombustion

HVAC Guide

CheckMe!

Fieldpiece

HG3

Data

Service

Exit T

Exit

Exi

Target

argetarget

rgetrget

Targe

atoratoatorator

ator

Tar

Evapor

t T

emp

INPUT FORM

SH Table: Standard

Refrigerant: R-22

OD Dry Bulb: 85.4°F

Return WB: 63.0°F

SL Pressure: 52.4psig

SL Temp: 45.4°F

CustomerID: __JONES123

AAT3

In-Duct

Psychrometer

& Air Velocity

Head

LO BATTAVG

ENGLISH

ENGLISH METRIC

RH%

Ft/min

°F

RH%

M/s

°C

METRIC

DRY BULB

WET BULB

DEW POINT

AVG

NORMAL

AUTO OFF

1 2

Summary of Contents

Page 1 - Psychrometer

01 03 0602 050407 09 1208 1110Quick Start1. Connect AAT3 to Fieldpiece meter.2. Select mVDC range on meter.3. Remove vinyl slip cover from the probe t

Page 2 - D (>10”)

13 15 1814 171619 21 2420 2322Diagnostic TestsWireless Return Wet Bulb for Target SuperheatThe AAT3 with a wireless transmitter (ET2W, EH4W, or LT17A

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Fieldpiece AAT3 - Hot-wire Anemometer & Psychrometer Acce User Manual

Browse online or download User Manual for Measuring instruments Fieldpiece AAT3 - Hot-wire Anemometer & Psychrometer Acce. Fieldpiece AAT3 - Hot-wire Anemometer & Psychrometer Accessory Head User Manual

Summary of Contents

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