TPI 621 Manual de usuario

621

Digital Manometer

Instruction Manual

Table of Contents

Page 3 Introduction & Product Description

Page 4 Safety Considerations

Page 5 Technical Data & International Symbols

Page 6 Features & Benefits

Page 7 Pressure Conversion Table

Page 8 Step by Step Procedures

Page 9 Accessories & Specifications

Page 10 Maintenance

Page 11 Trouble shooting guide

EC declaration of conformity

Introduction

Congratulations

Thank you for purchasing TPI brand products. This

meter is easy to use and is built to last. It is backed

by a 2 year limited warranty. Please remember to

return your product warranty registration card.

Product Description

The TPI 621 is a hand held pressure meter with supe-

rior resolution .

TPI 610 - Single Input - 4 Function - single unit of

pressure

All these models measure over the range of -40.0 to

+120.0 mbar. Each unit has a resolution of 0.01 mbar

to +19.00 mbar and automatically auto-ranges above

± 19.00 mbar to 0.1 mbar resolution. Each model is

supplied complete with carry pouch, battery and

instruction manual.

Safety Considerations

WARNING: Please follow the manufacturer's test

procedure whenever possible. Make sure the

pressure to be measured is not outside the range

of the TPI 621 meter.

ALWAYS

• Test the pressure meter before use to ensure it

is operating properly

• Ensure that the connecting hose you are using

is free from kinks or splits

• Double check all connections before testing

NEVER

• Connect the Instrument to an unknown pres-

sure source if the source is twice the working

pressure of the instrument the sensor will be

damaged and may cause injury to the user

• Tamper with the instrument or attempt to

modify it in any way. Otherwise, accident and

injury may occur and the warranty becomes

void.

Technical Data

Controls

Turns the 621 on. Hold down to turn unit

off.

ZERO Momentarily press the button to

“ZERO” the dispaly (“ZERO” will flash on

the lower left of the LCD)

=Smoothing function to stabilize rapidly

changing pressure readings

UNITS Selects 7 units of pressure kPa, PSI, inHg,

mmHg inH2O, mmH2O, mbar

Turns the back light on (automatically turns

off after 30 seconds)

Features & Benefits

Autoranging - Provides high resolution &

accuracy at low

Auto Power Off - Powers off after 40 minutes to

conserve battery life.

Trim Mode - Smoothing function to stabilize

erratic readings. It displays the

average value of 4 values

previously measured.

Zero Function - Provides immediate push button

zeroing for Speed and accuracy.

Units - Change the display value in any

one of the following engineering

units. kPa, PSI, inHg, mmHg,

inH20, mmH20 and mbar.

Back Light - Provides easy reading of LCD in

low light areas.

Atmos bar inHg inH2OPSI mmHg mmH20Pascals

Atmos 19.86923

x 10-1

3.34207

x 10-2

2.458

x 10-3

6.8046

x 10-2

1.316

x 10-3

0.9677

x 10-4

9.869

x 10-6

bar 1.01325 13.3864

x 10-2

2.491

x 10-3

6.8948

x 10-2

1.333

x 10-3

0.9807

x 10-4

1.000

x 10-5

inHg 29.9213 29.53 17.355

x 10-2 2.036 3.937

x 10-2

2.89567

x 10-3

2.953

x 10-4

inH2O406.8 401.48 13.60 127.68 0.5354 3.937

x 10-2

4.014

x 10-3

PSI 14.6955 14.504 0.4912 3.6127

x 10-2 11.934

x 10-2

1.422323

x 10-3

1.4503

x 10-3

mmHg 760 750.06 25.400 1.868 51.715 17.35433

x 10-2

7.502

x 10-3

mmH2O10.3327

x 103

10.1976

x 103

3.4544

x 10225.400 703.07 13.599 1.101972

Pascals 1.01325

x 105

1.000

x 105

3.386

x 103

2.491

x 102

6.8948

x 103

1.333

x 1029.8071 1

Pressure Coverstion Table

Step by Step Procedures

1. Press the 'ON' key and the LCD display will be

activated and automatically zeroed (if it does not

read 0.00 proceed as follows

2. Momentarily Press the key and the display

should zero within +/- 0.05 if not repeat until it

does

3. Connect pressure meter to installation or

equipment to be tested using appropriate hose

connection in accordance with the manufacturers

instructions

4. The pressure reading will appear on the display.

To activate the backlight in poor light conditions

press the key at any time

5. If the reading is erratic or changing activate the

smoothing function by pressing the '=' key

6. To convert the displayed pressure reading to

another engineering unit depress the 'UNIT' key

anytime and scroll through to the desired units of

pressure.

Accessories & Specifications

Standard accessories

9V battery . . . . . . . . . . . . . . . . . . . . . .A009

Soft Pouch . . . . . . . . . . . . . . . . . . . . . .A600

Optional Accessories

2 metre (6 ft) nitrile rubber tubing . . . .A601

Large Zipped pouch . . . . . . . . . . . . . . .A904

Specifications

Auto Range -300.0 to -300.0 mbar

-120.4 to 120.4 inH2O

Accuracy -40.2 to 40.2 inH2O: ±(0.2% of F.V.)

<-40.2 & >40.2 inH2O: ±(1% of M.V.)

Over Pressure Protected to 15 PSI

Power Supply 9V

Relative Humidity 0% to 80%

Operating Temp. 0ºC to +40ºC

Storage Temp. -10ºC to +50ºC

Auto Power Off 40 Minutes

Input Type Differential

Maintenance

Battery Replacement:

The 621 will display a battery symbol when the

internal 9V battery needs replacement.

Replace battery as follows:

1. Ensure instrument is switched off

2. Loosen the six cross head screws on the back

of the instrument

3. Remove the back cover

4. Remove old battery

5. Replace with new battery 9V NEDA 1604 or

equivalent

6. Reassemble the instrument in reverse order

from above being sure not to trap any wires

between the two halves of the case

7. Re-fit the six cross head screws being sure not

to over tighten

Cleaning: Use a mild detergent and a slightly damp

cloth to clean the surfaces of the instrument.

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