TPI 635 Tuffman Pressure Meter Instruction Manual

TPI 635 Tuffman Pressure Meter

Product Information

The Tuffman Pressure Meter TPI 635 / 645 / 655 is a high-resolution instrument that provides accurate pressure readings in seven different units of measure, including kPa, PSI, inHg, mmHg, inH20, mH20, and mbar. It features an auto- ranging function that provides high resolution and accuracy at low pressures where it is needed. The instrument is equipped with a smoothing functionto stabilize rapidly changing readings, and a MAX/MIN function that enables the user to recall and display both the maximum and minimum pressure recorded since the function was selected. The Tuffman Pressure Meter also features a HOLD function that maintains the reading on the LCD display, and a ZERO function that immediately zero’s the instrument for speed and accuracy. The unit also has an auto power off feature that powers off after 30 minutes to conserve battery life.

Product Usage Instructions

1. Turn on the Tuffman Pressure Meter by pressing the ON button.
2. Select the desired unit of measure using the UNITS button.
3. For accurate readings, press the ZERO button to zero the instrument before use.
4. To stabilize rapidly changing readings, use the smoothing function by pressing the SMOOTH button.
5. To recall and display both the maximum and minimum pressure recorded since the function was selected, press the MAX/MIN button once to activate, twice to read minimum, and three times to read maximum. To cancel the function, press and hold the MAX/MIN button.
6. To freeze the display reading, use the HOLD function by pressing the HOLD button.
7. After use, turn off the Tuffman Pressure Meter by pressing the OFF button.
8. For long term testing of pressure systems for leaks, use the RECORD MAX/MIN function.
9. For accurate and reliable readings, replace the 9V alkaline battery regularly.

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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 3 year limited warranty. Please remember to return your product warranty registration card.

Product Description

• The TPI 600 Tuffman series is a hand held range Of pressure meters and can be summarized as follows.
  • TPI 635 5 PSI pressure range
  • TPI 645 30 PSI pressure range
  • TPI655 100 PSI pressure range
• All of these models are dual input differential pressure meters with 7 selectable scales to choose from: mbar, kPa, PSI, inHg. mmHg,inH20, and mH20.

Safety Considerations

WARNING: Please follow the manufacture’s test procedure whenever possible. Make sure the pressure to be measured is not outside the range of the TPI 635/645/655 meter.

General Guidelines

• 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 pressure 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 be comes void.

Technical Data

Controls TPI 635/645/655

• ON Switches instrument “ON” for use
• OFF Switches instrument “OFF” after use
• ZERO Automatically “zero’s” the instrument
• == Smoothing function to stabilize rapidly changing readings
• MAX/MIN
  • Enables user to recall & display both the maximum and minimum pressure recorded since the function was selected.
  • Press button once to activate, twice to read minimum and three times to read the maximum. To cancel the function press and the hold the “MAXIMIN” button
• HOLD Maintains the reading on the LCD display
• UNITS Selects 7 units of measure kPa, PSI, inHg, mmHg, inH20, mH 20, mbar\

Features & Benefils

• Auto ranging- Provides high resolution & accuracy at low pressures where it is needed
• Auto Power Off- Powers off after 30 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.
• Record Max/Min- Enables long term testing of pressure systems for leaks
• Hold- Enables the user to freeze the display reading, when working in cramped working conditions, when the display is not visible.
• Units- Change the display value in anyone of the following engineering units. kPa, PSI, inHg, mmHg, inH20, mH20 and mbar.

Pressure Conversion Table

 | Atmos| mbar| inHg| inH20| PSI| mmHg| mH20| kPa
---|---|---|---|---|---|---|---|---
Atmos| 1| 9.86923

x 10-4

| 3.34207

X 10-2

| 2.45832

X 10-3

| 6.8046

X 10-2

| 1.31579

X 10-3

| 9.67841

X 10-3

| 9.86923

X 10-3

mbar| 1013.25| 1| 33.8638| 2.49089| 68.9476| 1.33322| 98.0665| 10
inHg| 29.9213| 2.95301

x 10-2

| 1| 7.35561

X 10-2

| 2.036| 3.937

X 10-2

| 2.89591| 0.295301
in H20| 406.8| 0.401463| 13.5951| 1| 27.68| 0.534| 39.3701| 4.01463
PSI| 14.6959| 1.45038

x 10-2

| 0.491153| 3.61273

X 10-2

| 1| 1.934

X 10-2

| 1.42233| 0.145038
mmHg| 760| 0.750064| 25.4| 1.86833| 51.715| 1| 73.5561| 7.50064
mH20| 10.3323| 1.01972

x 10-2

| 0.345315| 2.54

X 10-2

| 0.70307| 1.35951

X10-2

| 1| 0.101972
kPa| 101.325| 0.1| 3.38638| 0.249089| 6.89476| 0.133322| 9.80665| 1

Step by Step Procedures

• Press the “ON” key and the LCD display will be activated if it does not read 0.00 proceed as follows
•  Press the “zero” key and the display should read zero. if not repeat until it does
• Connect pressure meter to installation or equipment to be tested using appropriate hose connection in accordance with the manufactures instructions
• The pressure reading will appear on the display. To activate the backlight in poor light conditions press the “ON’ key at any time
• If the reading is erratic or changing activate the smoothing unction by pressing the” =” key
• To freeze a reading in awkward or cramped working spaces press the “Hold” key
• To record maximum & minimum pressures when establishing pressure decay or carrying out gas line soundness testing press the “MAXIMIN” key
• 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

Maintenance

Battery Replacement
The 635/645/655 will display a iBATi symb 01 when the internal 9V battery needs replacement. Replace battery as follows:

1. Ensure instrument is switched off
2. Loosen the cross head screw on the battery compartment cover
3. Remove battery compartment cover
4. Remove old battery
5. Replace with new battery 9V NEDA 1604 or equivalent
6. Reassemble the instrument in reverse order from above
7. RE-fit the cross head screw being sure not to over tighten

Cleaning
Use a mild detergent and a slightly damp cloth to clean the surfaces of the instrument.

Trouble Shooting Guide

EC Declaration 01 Conformity

• This is to certify that model 634/645/655 conform to the protection requirements of the council directive 89/336/EEC, in the approximation of laws of the member states relating to Electromagnetic compatibility by application of the following standards
  • EN50081-1 1992 Emissions Standard
  • EN50082-1 1992 Immunity Standard
• To ensure conformity with these standards, this instrument must be operated in accordance with the instructions and specifications given in this manual.

Warranty Statement

3 Year Limited Warranty
This TPI product is warranted to the purchaser against defect 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 expense, conse-quential damages, incidental expenses including damages to property is not covered. Transportation expense to the company 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 the address printed below.

ABOUT COMPANY

• Test Products International, Ltd. 342 Bronte Sl. South Unit #9 Miltoll, Ontario L9T 5B7
• Canada
• 905-693-8558
• Fax: 905 -693-0888
• e-mail: inlo@lpicanada.com
• Test Products International, Inc Headquarters
• 9615 SW AIlen Blvd.
• Beaverton, OR 97005
• USA
• 503-520-91971
• Fax: 503-520-1225
• e-mail: inlo@tpi-lhevalueleader.com

References

• Test Products International - USA

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