TPI 565C1 User Manual

The Value Leadertm

www.tpi-thevalueleader.com

TPI 565

Visit TPI, The Value Leadertm at:

www.tpi-thevalueleader.com

Test Products International, Inc.
Headquarters:
9615 SW Allen Blvd.
Beaverton, OR 97005
USA
503-520-9197 • Fax: [phone]
e-mail: [e-mail]

Test Products International, Ltd.
342 Bronte St. South Unit #9
Milton, Ontario L9T 5B7
Canada
905-693-8558 • Fax: [phone]
e-mail: [e-mail]

Test Products International UK Ltd.
Longley House, East Park
Crawley, West Sussex RH10 6AP
England
Tel: [phone]
Fax: [phone]
e-mail: [e-mail]

Hotwire Air Velocity Meter

8

555M © 2004

1

Contents

3 Introduction

4 Instrument Overview

4 Operating Instructions

5 Volume Measurements CFM

5 Recording Data

6 RS232 Interface

6 Specifications

7 Calibration & Service

7 Guarantee

7 Troubleshooting Guide

CALIBRATION & SERVICE

It is recommended that the instrument be calibrated every 12 months. Please
consult Test Products International for further details.

GUARANTEE

Your TPI 555 Vane Air Velocity Meter is guaranteed free from defects in materials
and workmanship for 3 Years from the date of purchase.

Covered by TPI: - Repair parts and labour; or replacement of the product at the
option of TPI. Normal transportation charges to the purchaser are also covered.

Not covered by TPI: - Damage to the product which are the result of abuse, im­proper use or maintenance are not covered. Any other expenses, consequential
damages, incidental expenses including damages to property are not covered.
Transportation expenses to the customer are not covered.

To obtain warranty performance: - Include with the product your name, address,
phone number, written description of the problem and proof of purchase date.
Carefully package and return to TPI.

This guarantee does not affect your statuary rights.

Trouble Shooting Guide

Problem Solution

Unit will not turn on Battery voltage is low, change batteries.

2

7

RS232 Output

Holding down "RCL" button will display "MAX, "MIN", "AVG". And then
"RS-232" at the top right of the screen.

This function prints the reading currently being measured in ASCII code.

RS232 cable is needed in order to view the readings on your computer.

SPECIFICATIONS

Instrument General

Operating Temperature Range -10˚C to +50˚C

Operating Humidity Less than 95% non-condensing
Battery 6 each 1.5Volty “AAA” Alkaline batteries
Battery Life > 30 Hours Continuous Use
Display Backlit Dual LCD with function annunciators
Dimensions 74mm x 144mm x 29mm
Weight 150g
Casing Rubber Boot as Standard
Switch Off Auto Power Off after 10 minutes

Sensors

Temperature Measurement -20˚C to +80˚C (-5˚F to 175˚F)

Temperature Accuracy ±1% of reading ±0.5°C
±1% of reading ±1.0°F

Velocity Measurement 0.2 to 20 m/s
Velocity Accuracy ±5% of reading ±3 digits
Units of Measure m/s, km/s, ft/min, knots, mile/h

1. Introduction

Thank you for purchasing TPI brand products. The TPI 565 Hot Wire Air Velocity
Meter is a state of the art, easy to use instrument designed to provide temperature
and air velocity readings. The instrument is ruggedly constructed and comes with
a 3 Year Guarantee.

This manual will guide you through the functions of the TPI 565 which will give
you many years of reliable service.

Your TPI 565 Hot Wire Air Velocity Meter comes complete with the following items
as standard:

TPI 565 Instrument
Rubber Boot
Soft Carrying Case
Batteries

Instruction Manual

Your TPI 565 Hot Wire Air Velocity Meter has the following options available:

Serial Computer Interface RS232

6

3

Instrument Overview

RS232 Output

Dual LCD

Unit Key

Hold Key

Power Key

Record Key

Recall Key

°C or °F key

Zero Key

Battery Compartment

Operating Instructions

1. Push ON button to turn meter on.

2. Pressing the 'C/'F button will toggle between 'C and 'F.

3. Push UNIT button to select the desired display units of the

air velocity. 5 units: - m/s, km/s, ft/min, knots, mile/h

4. Position the probe at desired location of measurement.

5. Read the temperature and velocity on the LCD.

6. It will take several minutes until the readings get stable after the
probe is positioned.

7. Press "HOLD" button to freeze the display after taking a measure­ment is finished.

8. "DH" will be displayed on the LCD.

9. Press "HOLD" button again to return to normal operation.

Battery should be replaced when "LBT" is displayed at the top left of the screen.

Sensors

Remote
Probe

Volume Measurements

To determine CFM (cubic feet per minute) in a duct, the area of the duct
must first be measured (use the equations below). Then multiply an air
velocity measurement by the area measurement to obtain CFM.

Area Equation for Square Ducts:

Height (H)

Area (A) = Height (H) X Width (W)

Width (W)

Area Equation for Round Ducts:

Radius (R)

Area (A) = π X R

Where
R

π = 3.14

2

= (Radius x Radius)

2

CFM (ft3/min) = Air Velocity (ft/min) X Area (in square Inches)

144

Recording Data

If you want to record the reading changes, press "REC" button when the
reading gets stable. Once activated the meter will begin recording.

-The REC annunciator will be displayed. The meter will record minimum,
maximum and average temperatures.

-To recall the data after recording, press "RCL" button.
The "MAX", "MIN", "AVG" values will be recalled sequentially.

If you press "RCL" button, both temperature and humidity will be dis­played at the same time on the LCD. The screen will display "MAX",
"MIN", "AVG" sequentially.

Press "REC" button to return to normal operation.
The meter has auto power off feature on normal operation.( 10 minutes)
Auto power off is disabled on record mode.

4

5