PASCO PS-2107 User Manual

®

Absolute Pressure Sensor

PS-2107

Set-up

Connecting the Sensor to an Interface

1. Connect the sensor’s plug to any port of a PASPORT inter-

face or datalogger.

2. If you are using a computer, connect the PASPORT interface

to it and start DataStudio.

Instruction Sheet

012-07447F

*012-07447*

Included Parts

• Absolute Pressure Sensor

•Syringe

• Quick-release Connectors (4 pieces)

• Tubing Connectors (4 pieces)

• Polyurethane Tubing (length 0.6 m or 2 ft)

Additional Parts Required

• PASPORT interface or datalogger

Quick Start

1. Connect the Absolute Pressure Sensor to your PASPORT

interface.

2. If you are using a computer, connect the PASPORT interface

to it and start DataStudio.

3. Connect the syringe to the sensor using the tubing and one of

the quick-release connectors.

4. Press or click the start button to begin recording data.

5. Move the syringe plunger to vary the pressure.

Connecting the Syringe or Other Device

1. Cut a piece of tubing to the desired length.

2. Insert a quick-release connector into one end of the tubing.

3. Connect the tubing to the sensor by inserting the

quick-release connector into the pressure port and twisting
clockwise.

4. Connect the free end of the tubing to the syringe or other

device using connectors supplied with the apparatus or the
tubing connectors include with the Absolute Pressure Sen­sor. Y ou can use the included tubing connectors to connect to
a 5 mm (3/16 inch) hole in a rubber stopper.

Introduction

The Absolute Pressure Sensor measures gas pressure from 0 kPa
to 700 kPa. It can be connected to the included syringe, or other
device, using the included connectors and tubing. The pressure
measurement is recorded and displayed by the connected com­puter or datalogger.

About the Measurement

Sample Rate

By default, the sensor collects 10 samples per second. It can col­lect data as fast as 200 samples per second and as slow as one
sample every four hours. Change the sample rate in the software
or on the datalogger.

®

Absolute Pressure Sensor PS-2107

Units

The measurement can be displayed in units of kPa, N/m2, 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 cali­bration can be performed to make the measurement more accu­rate. T o 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 data­logger.

Sample Experiment: Boyle’s Law

Follow these steps to investigate the relationship between pres­sure 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 result­ing graph
illustrates the
relationship
between
pressure and
volume. To
plot a linear
relationship,
make a graph
of pressure versus inverse volume.

Specifications

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)

Technical Support

For assistance with any PASCO product, contact PASCO at:

Address: PASCO scientific

10101 Foothills Blvd.
Roseville, CA 95747-7100

Phone: [phone] (worldwide)

800-772-8700 (U.S.)
Fax: [phone]
Web: www.pasco.com
Email: [e-mail]

For more information about the Absolute Pressure Sensor and the
latest revision of this Instruction Sheet, visit: the P ASCO 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 regis­tered 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 ser­vices 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)

and on the product or its packaging indicates that this

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

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