Pasco PS-2107 Absolute Pressure Sensor Manuel d'utilisateur télécharger pdf (Page 2)

Absolute Pressure Sensor PS-2107

Units

The measurement can be displayed in units of kPa, N/m

, pounds

per square inch (psi), atmospheres (atm), and torr. Select the

desired units in the software or on the datalogger.

Calibration

Though it is usually not necessary, a one-point or two-point cali-

bration can be performed to make the measurement more accu-

rate. To do so, you must have a very accurate, independent means

of measuring pressure such as a barometer. For calibration

instructions, refer to the documentation for your software or data-

logger.

Sample Experiment: Boyle’s

Law

Follow these steps to investigate the relationship between pres-

sure and volume at constant temperature.

1. Put the software or datalogger into manual-sampling mode.

Set the keyboard-entered data to be volume measured in

units of mL. Prepare a graph to plot pressure (measured by

the sensor) versus volume (entered manually). Refer to the

documentation for your software or datalogger for detailed

instructions.

2. Connect the syringe to the sensor’s pressure port using a

1 cm length of plastic tubing and a quick-release connector.

It is important to use a short piece of tubing to minimize the

volume of gas that is not measured by the syringe.

3. Press or click the start button to begin measuring pressure.

4. Hold the plunger of the syringe at 20 mL.

5. Press or click the keep button to record a single data point.

6. Type in the gas volume indicated by the syringe.

7. Push the plunger to 18 mL and repeat steps 5 and 6.

8. Repeat steps 5 and 6 for volumes of 16 mL, 14 mL, 12 mL,

and 10 mL.

The result-

ing graph

illustrates the

relationship

between

pressure and

volume. To

plot a linear

relationship,

make a graph

of pressure versus inverse volume.

Specifications

Technical Support

For assistance with any PASCO product, contact PASCO at:

For more information about the Absolute Pressure Sensor and the

latest revision of this Instruction Sheet, visit: the PASCO web site

at www.pasco.com and enter PS-2107 in the Search window.

Limited Warranty For a description of the product warranty, see the

PASCO catalog. Copyright The PASCO scientific 012-07447F Abso-

lute Pressure Sensor Instruction Sheet is copyrighted with all rights

reserved. Permission is granted to non-profit educational institutions for

reproduction of any part of this manual, providing the reproductions are

used only in their laboratories and classrooms, and are not sold for profit.

Reproduction under any other circumstances, without the written consent

of PASCO scientific, is prohibited. Trademarks PASCO, PASCO sci-

entific, DataStudio, PASPORT, and Xplorer GLX are trademarks or regis-

tered trademarks of PASCO scientific, in the United States and/or in other

countries. All other brands, products, or service names are or may be

trademarks or service marks of, and are used to identify, products or ser-

vices of, their respective owners. For more information visit

www.pasco.com/legal.

Product End of Life Disposal Instructions:

This electronic product is subject to disposal and recycling

regulations that vary by country and region. It is your

responsibility to recycle your electronic equipment per your

local environmental laws and regulations to ensure that it

will be recycled in a manner that protects human health

and the environment. To find out where you can drop off

your waste equipment for recycling, please contact your

local waste recycle/disposal service, or the place where

you purchased the product.

The European Union WEEE (Waste Electronic and Electrical Equipment)

symbol

and on the product or its packaging indicates that this

product must not be disposed of in a standard waste container.

Range 0 kPa to 700 kPa

Accuracy ±2 kPa

Resolution 0.01 kPa

Maximum sample rate 200 samples per second

Repeatability 1 kPa

Operating temperature 0° C to 40° C

Relative humidity range 5% to 95% non-condensing

(condensation on unit will

negatively affect performance)

Address: PASCO scientific

10101 Foothills Blvd.

Roseville, CA 95747-7100

Phone: 916-786-3800 (worldwide)

800-772-8700 (U.S.)

Fax: 916-786-7565

Web: www.pasco.com

Email: [email protected]

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Pasco PS-2107 Absolute Pressure Sensor Manuel d'utilisateur Page 2

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