TPI 623 Manual de usuario
623
Digital Manometer
Instruction Manual
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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 10 Accessories & Specifications
Page 11 Maintenance
Page 12 Trouble shooting guide
Page 13 EC declaration of conformity
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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 623 is a hand held pressure meter with supe-
rior resolution .
Auto Range -100.0 to -100.0 mbar
-40.0 to 40.0 inH2O
Resolution 0.001 inH2O / 0.01 inH2O
Accuracy < +/-2 inH2O: ±(0.02 inH2O)
> +/- 2 inH2O: ±(1% of reading)
Over Pressure Protected to 50 inH2O
Power Supply 9V
3
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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 623 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.
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Technical Data
Controls
Turns the 623 on. Hold down to turn unit
off.
ZERO Momentarily press the button to
“ZERO” the dispaly (“ZERO” will temporari-
ly display in 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)
5
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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.
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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
7
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Step by Step Procedures
Note:
The 623 incorporates a differential manometer.
This means when a single hose is connected to
the (+) port and pressure is applied, the 623 will
read positive pressure. If a single hose is con-
nected to the (-) port and pressure is applied,
the 623 will read a negative pressure. If both
ports are connected to a pressure, the 623 will
read the difference (P1 - P2) between the two.
When performing single pressure measurments
(non-differential) use the positive port and leave
the negative port open.
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Step by Step Procedures (continued)
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 +/- 0.01 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.
9
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Accessories & Specifications
Standard accessories
9V battery. . . . . . . . . . . . . . . . . . . . . .A009
Soft Pouch . . . . . . . . . . . . . . . . . . . . . .A600
Protective boot with magnets . . . . . . . A6XX
Silicone tubing w/ 1/4” barbed
1/8” NPT fitting. . . . . . . . . . . . . . . . . . A603
Specifications
Auto Range -100.0 to -100.0 mbar
-40.0 to 40.0 inH2O
Resolution 0.001 inH2O / 0.01 inH2O
Accuracy < +/-2 inH2O: ±(0.02 inH2O)
> +/- 2 inH2O: ±(1% of reading)
Over Pressure Protected to 50 inH2O
Power Supply 9V
Relative Humidity 0% to 80%
Operating Temp. 0ºC to +40ºC
Storage Temp. -10ºC to +50ºC
Auto Power Off 20 Minutes
Input Type Differential
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