TPI 556C1 User Manual

556

Digital Air Velocity/Flow Meter

The Value Leader

TM

www.tpi-thevalueleader.com

Contents

3 Introduction

4 Instrument Overview

5 Operationg Instructions

10 Instrument Specifications

11 Guarantee

2 11

Introduction

Thank you for purchasing TPI brand products. The 556 Digital Air
Velocity Meter is a state of the art, easy to use instrument designed
to provide temperature and air velocity readings as well as
calculating CFM. The instrument is ruggedly constructed and
comes with a 3 Year Guarantee.

This manual will guide you through the functions of the TPI 556
which will give you many years of reliable service.

Your TPI 556 Digital Air Velocity Meter comes complete with the
following items as standard:

TPI 556 Instrument
Rubber Boot
Soft Carrying Case
Batteries
Instruction Manual

Your TPI 556 Digital Air Velocity Meter has the following options
available:

Serial Computer Interface RS232

Instrument Overview

Dual LCD

Rubber
Boot

Keypad

1 & Velocity / Flow

Key

RS232 Output

Battery

Compartment

2 & Unit

Key

Sensor

Remote
Probe

3 & ESC/HOLD

Key

6 & Logger Key

4 &Sample Area

Key

5 & C/F Key

7 & Record Key

9 & Sample

8 & Recall Key

Power Key

4 9

0 & Log / Send

Key

Rate Key

.

“

”

&Enter Key

Operating Instructions

Air Velocity Measurement

1. Push Power button to meter on.

2. Pressing °C/°F button will toggle between °C and °F

3. Press VEL/FLOW button to display “VEL”

4. Press UNIT button to select the desired display units of air velocity.

5 units: “m/s”, “km/h”, “knots” , “ft/min”, “mile/h”

5. Position the probe at the desired location of measurement.

6. Read the velocity and temperature on the display.

7. Press the ESC/HOLD button to freeze the display after taking a
measurement is finished. “DH” will be displayed on the LCD.

8. Press the ESC/HOLD button again to return to normal operation.

9. If you want to record the reading changes, press the RECORD button
when the reading gets stable. The “REC” symbol will be displayed. The
meter will record the minimum, maximum and average readings.

10. To recall the data after recording, press the RECALL button.
The “MAX”, “MIN”, “AVG” values will be recalled sequentially.

11. If you press the RECORD button again, the unit will return to normal
operation mode.

Air Flow Measurement

1. Push the POWER button to turn meter on.

2. Pressing °C/°F button will toggle between °C and °F

3. Press VEL/FLOW button to display “FLOW”

4. Press UNIT button to select the desired units of airflow: “CFM or CMM”

5. In order to get a correct Air Flow reading it is required to input the
sample area. The area is either measured by ft

2

or m

2

58

Air Flow Measurement Continued

6. Measure the area to be measured and calculate the square
footage or square meters.

Area equation for Rectangular Ducts:

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

Height (H)

Width (W)

Common Rectangular Duct Sizes with Area

DUCT SIZE AREA

(Inches) (sq.ft)

8” X 10” 0.444
8” X 10” 0.556
8” X 12” 0.667
8” X 14” 0.778
8” X 15” 0.833
8” X16” 0.889
8” X18” 1.000

8” X 20” 1.111

6 7

Area equation for Round Ducts:

AREA (A) = 3.14 X (Radius X Radius)

7. Press the SAMPLE AREA button, the earlier measured area will be
displayed. The left digit on the LCD will be flashing

8. If the calculated area is 1.00, press the numeric button 1 followed by the
decimal button followed by the numeric key for 0, 0, 0. Then press the
ENTER button.The enter button will only work when all four digits are
entered. “1.000” will be displayed on the lower part of the display after
the input has been completed.

9. Position the probe at the desired location for measurement.

10. Read the flow on the display, it will take several minutes
until the readings get stable after the probe is positioned.

11. Press the ESC/HOLD button to freeze the display after taking a
measurement is finished. “DH” will be displayed on the LCD.

12. Press the ESC/HOLD button again to return to normal operation.

13. If you want to record the reading changes, press the RECORD button
when the reading gets stable. The “REC” symbol will be displayed. The
meter will record the minimum, maximum and average readings.

Radius

Common Round Duct Sizes with Area

DUCT SIZE AREA

(Inches) (sq.ft)

4” 0.087

5” 0.136

6” 0.196
7” 0.267

14. If you want to record the reading changes, press the RECORD button
when the reading gets stable. The “REC” symbol will be displayed. The
meter will record the minimum, maximum and average readings and
2/3V MAX.

15. “2/3V MAX” indicates 2/3 of the maximum value of the measured flow
reading.

16. To recall the data after recording, press the RECALL button.
The “MAX”, “MIN”, “AVG”, “2/3V MAX”values will be recalled
sequentially.

17. If you press the RECORD button again, the unit will return to normal
operation mode.

The 556 has auto power off feature

on normal mode operation (10 minutes)

Auto power off is disabled in record mode.

Battery should be replaced when

“LBT” is displayed at the top left of the screen.

Logger Functions

1. This function logs the reading to be measured during Air Velocity
and Air Flow measurements.

2. You can download the real-time data to be measured if you
connect the meter and the PC through RS-232.

3. Pressing the LOGGER button will display “Log” on the main
display and “on” on the sub display. Pressing the ENTER button
will activate this function.

4. This function transfers and also records data at real-time.

5. The meter records 1000 readings automatically. If there are more
than a 1000 readings the meter will stop automatically.

6. If the meter is turned off, measurements will be lost.

7. If you want to stop or disable the Logger function, press the LOGGER
button again and press the ENTER button again when “Log” and
“off” are displayed. If you want to download this stored data to
the PC again, connect them with the RS232. You can download
all of the measurements in the hyperterminal at one time.

8. You can use this function by pressing the LOG SEND button.

9. If you pressed a button when you did not want to, press the ESC
button to cancel the operation ie. If logger button is pressed during
logger operation and “off” Mode is selected, press the ESC
button to continue logger fucntion without disabling the Logger
function.

Sample Rate Function

1. This function is to set the sampling time of the data to be
measured during the Logger function.

2. Time setting is from 1 to 999 seconds.

3. This function is used for both Air Velocity and Air Flow.

4. Pressing the SAMPLE RATE button will display the old rate in
the last digit on the main display, the first digit will be flashing
and “rAtE will be flashing on the lower display.

5. Press the numeric keys to enter the desired sampling time and
then press the ENTER button to complete the setting.

SPECIFICATIONS

Operating Temperature Range 0°C to 50°C (32°F to 122°F)

Operating Humidity Less than 80% non-condensing RH

Battery 9V Alkaline battery

Battery Life >30 hours Continuous use

Display Dual LCD with function annuciators

Dimensions 148 x 73 x 30 mm (Main Instrument)

70 x 145 mm (Vane)

Casing Rubber Boot as standard

Switch Off Automatic Power off after 10 minutes

SENSORS

Measurement Range Resolution
m/s 0.4 - 30.0 0.1
km/h 1.4 - 108.0 0.1
mile/h 0.9 - 67.08 0.1
knots 0.8 - 58.32 0.1
ft/min 80 - 5916 1
Accuracy ±2% of reading, +3 digits

m/s = meters per second
km/h = kilometers per hour
mile/h = miles per hour
knots = nautical miles per hour
ft/min = feet per minute

CFM/CMM 0 - 999900 0.1
Area 0.001 - 9999 0.001

CFM = cubic feet per minute
CMM= cubic meter per minute

Temperature -20°C to 80°C 0.1

-5°F to 175°F 0.1

Accuracy ±1% of reading, +3 digits

10 3

Calibration & Service

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

Guarantee

Your TPI 556 Digital Velocity/Air Flow 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.

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]

556 Manual • 03/22/07 copyright © 2007 Test Products International.