TPI 575 User manual

Copyright © 2006, Test Products International, Inc
The Value LeaderT
www.tpi-thevalueleader.comM
Test Products International, Inc.
9615 SW Allen Blvd
Beaverton, OR 97005-4814 USA
Ph: 503-520-9197 Fax: [phone]
e-mail: [email protected]
Test Product International Ltd.
342 Bronte Street South, Unit 9
Milton, Ontario L9T 5B7
Ph: 905-693-8558 Fax: [phone]
e-mail: [email protected]
Test Products International Europe Ltd.
Longley House, International Drive
Crawley, West Sussex RH10 6AQ
Ph: [phone] Fax: [phone]
e-mail: [email protected]

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
7roubleshooting Guide
1. Introduction
Thank you for purchasing TPI brand products.
The TPI 575 Vane/Hotwire AirVelocity Meter is a state of the
art,easy to use instrument designed to provid temperature and
air velocity readings.
The in strument is ruggedly constructed and comes with a 3
Year Guarantee.
This manual will guide you through the functions of the TPI 575
which will give you many years of reliable service.
Your TPI 575 Vane/Hotwire Air Velocity Meter comes complete
with the following items as standard:
●TPI 575 Instrument
●Hotwire Probe Head
●Vane Probe Head
●Rubber Boot
●Soft Carrying Case
●Batteries
●Instruction Manual
Your TPI 575 Digital Vane/Hotwire Thermometer has the follow-
ing options available:
●Serial Computer Interface RS232
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9. If you selected a hot probe, pull down the sensor cover
of the probe (so that air velocity sensor can be seen)
and position the probe at desired location of measurement.
The Probe should be positioned so that a white spot will face the winds
10. Read the velocity and temperature on the LCD
11. It will take several minutes until the readings get stable
after the probe is positioned.
12. Press "HOLD" button to freeze the display after taking
a measurement is finished.
13. "DH" will be displayed on the LCD.
14. Press "HOLD" button again to return to normal operation.
Battery should be replaced when "LBT" is displayed at the top
left of the screen.
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) = pX R2
Where p = 3.14
R2 = (Radius x Radius)
CFM (ft3/min) = Air Velocity (f/min) X Area (in square Inches)
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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.
1. The REC annunciator will be displayed. The meter will record
Instrument Overview
Operating Instructions
1. Select the Hot Wire probe or Vane probe for location of mea
surement.
2. Connect the selected probe to themeter.
3. Push ON button to turnmeter on.
4. Push HOT WIRE button or VANE button as per a selected probe.
5. Pressing the ˚C/˚F button will toggle between ˚C and ˚F.
6. Push UNIT button to select the desired display units of
the air velocity.
7. The user can scroll through 5 units: m/s, km/s, ft/min,
knots,mile/h.
8. "Zero setting : Do not follow normal velocity measurement
procedure.On the sensing head, slide the sensor cover
to the up positionure.On the sensing head, slide the cover to
the up position to let the air velocity sensor isolated from
the environment. Push the zero button to let the reading of
air velocity show zero."
will face the winds.
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minimum, maximum and average temperatures.
2. To recall the data after recording, press "RCL" button.
3. The "MAX", "MIN", "AVG" values will be recalled sequentially.
4. If you press "RCL" button, both temperature and wind
veloctity will be displayed at the same time on the LCD.
The screen will display "MAX","MIN","AVG" sequentially.
5. 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.
RS232 Output
And then "RS-232" at the top right of the screen. This function
prints the reading curreently being measurd in ASCII code.
RS232 (p/n A500) cable is needed in order to view the readings
on your computer.
SPECIFICATIONS
Instrument General
Operating Temperature Range 0˚C to +50˚C (32˚F to 122˚F)
Operating Humidity Less than 80% Rh
Battery 1.5V Alkaline battery X 6
Battery Life > 30 Hours Continuous Use
Display Dual LCD with function
annunciators
Dimensions 74mm x 144mm x 29mm
Weight 580g
Switch Off Auto Power Off after10 minutes
Sensors
Temperature Measurement -20˚C to +80˚C (-5˚F to 175˚F)
Temperature Accuracy ±1% of reading ±0.5˚C ±3 digits
±1%ofreading±1.0˚F ±3 digits
Velocity MeasurementVane: 0.4to25m/s±2%
of reading±3digits
Hot wire:0.2to20m/s ±5.0%
of reading±3digits
Units of Measure m/s, km/h, ft/min, knots, mile/h
CALIBRATION & SERVICE
It is recommended that the instrument becalibrated every 12 months.
Please consult Test Products International for further details.
GUARANTEE
Your TPI 575 Hot wire/Vane Air Velocity Meter is guaranteed
free from defects in materials and workman ship 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 main-tenance are not covered.
Any other expenses, consequential damages, incidental expens-
es 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 Batteryvoltageislow,changebatteries.
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