User's Manual

Model No.PS-2116A Technical Support
3
012-09688B
However, the Conductivity Probe can also be stored dry. If
the probe is stored dry, it should be soaked in deionized or
distilled water for 5 to 10 minutes before use.
Suggested Activities
• Concentration Dependence of Conductivity in Aqueous
Solutions
• Temperature Dependence of Conductivity in Dilute
Aqueous Solutions
• Acid-Base Titration with the Conductivity Sensor
More Information
For the latest information about the Conductivity Sensor,
visit www.pasco.com and enter “PS-2116A” in the Search
window.
Technical Support
For assistance with any PASCO product, contact PASCO at:
Limited Warranty For a description of the product warranty, see the
PASCO catalog. Copyright The PASCO scientific 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 laborato-
ries and classrooms, and are not sold for profit. Reproduction under
any other circumstances, without the written consent of PASCO sci-
entific, is prohibited. Trademarks PASCO, PASCO Capstone,
PASPORT, SPARK Science Learning System, SPARK SLS, and
SPARKvue are trademarks or registered trademarks of PASCO sci-
entific, in the United States and/or in other countries. For more infor-
mation visit www.pasco.com/legal.
Product End of Life Disposal Instructions:
This electronic product is subject to disposal and recycling regula-
tions that vary by country and region. It is your responsibility to recy-
cle 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 (to the right)
and on the product or its packaging indicates
that this product must not be disposed of in a
standard waste container.
Appendix: Calibration
Before calibration, soak the Conductivity Probe in deionized
or distilled water for five to ten minutes.
To make a standard conductivity solution for calibration,
sodium chloride (NaCl), deionized water (1 liter), a 1-liter
flask, a mass balance, and a stir rod are needed.
• Prepare one of the weight percent sodium chloride
(NaCl) solutions given in the table below. Weigh out the
desired mass in milligrams and place the salt in a 1-liter
flask. Add 500 milliliters (ml) of deionized water and
stir the solution to dissolve the salt. Add the remaining
500 ml of deionized water and stir the solution again.
• After preparing the standard conductivity solution, put
the end of the Conductivity Probe into the solution.
Calibration: PASCO Capstone
In the PASCO Capstone software, click the “Calibration”
icon in the Tools palette to open the “Calibration” panel.
Address: PASCO scientific
10101 Foothills Blvd.
Roseville, CA 95747-7100
Phone: [phone] (worldwide)
877-373-0300 (U.S.)
E-mail: [e-mail]
Web www.pasco.com
% Weight Mass of NaCl
(mg)
Conductivity
(S/cm) at 25°C
0.001 10 21.4
0.01 100 210
0.1 1,000 1,990
1.0 10,000 17,600
10.0 100,000 140,000