PASCO SF-9568A User manual

®
Instruction Sheet
012-08015B
Heavy Duty Voltmeter
SF-9568A
*012-08015*
Introduction
The PASCO Model SF-9568A Heavy Duty Voltmeter is a rug-
ged yet sensitive instrument designed specifically for student
experiments. It has three ranges and is switch selectable by
input jack to measure AC or DC values.
Operation
To zero the meter:
Place the meter in the position (vertical or horizontal) in which
it will be used. Disconnect the meter. Use a small, standard
blade screwdriver to turn the Zero Adjust Screw (located on
the case below the meter) until the meter needle e is aligned
with zero on the scale.
.
To measure voltage:
1. Set the selection switch for AC or DC voltage. (The AC set-
ting will provide root-mean-square (RMS) readings for alter-
nating current circuits.)
2. Determine the range. For both AC and DC measurements,
voltage may be measured in one of three ranges: 3 V, 15 V,
and 30 V. The range is selected by plugging leads (not
included) into the appropriate input jack.
.
3. Attach leads to the circuit points between which you wish to
measure the voltage.
For AC measurements
Plug one lead of the circuit into the black input jack and the
other lead into the red input jack of the appropriate range.
For DC measurements
Connect the leads in such a way that positive current flows into
the black input connector on the voltmeter.
4. Now you can read the voltage on the meter. A full swing of
the needle corresponds to the value in the chosen range
selection. For example, on the 3 V range, a reading of 20 on
the upper scale indicates a voltage of 2.0 V.
3
CE
30
15
0
V
SF-9568A
0
1
0
30
2
0
Voltmeter
Zero
Adjust
Screw
NOTE: If the meter is zeroed in one position and the
position is changed, it may need to be zeroed again.
NOTE: To project the meter, always choose a range
that is higher than the highest voltage you might expect
in the circuit.
Directionofpositive
current flow

®
Heavy Duty Voltmeter Technical Support
012-08015B
2
Specifications
Limited Warranty
For a description of the product warranty, see the PASCO catalog.
Copyright
The PASCO scientific 012-08015B Heavy Duty Voltmeter Instruction
Sheet is copyrighted with all rights reserved. Permission is granted to
non-profit educational institutions for reproduction of any part of this man-
ual, providing the reproductions are used only in their laboratories and
classrooms, and are not sold for profit. Reproduction under any other cir-
cumstances, without the written consent of PASCO scientific, is prohibited.
Trademarks
PASCO and PASCO scientific 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 elec-
tronic 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 product representative.
The European Union WEEE (Waste Electronic and Elec-
trical Equipment) symbol and on the product or its pack-
aging indicates that this product must not be disposed
of in a standard waste container.
Technical Support
For assistance with any PASCO product, contact PASCO at:
For the latest information about the Heavy Duty Voltmeter, go
to the PASCO web site at www.pasco.com and enter
SF-9568A in the search window.
Ranges (AC and DC) 0 to 3 V, 15 V, and 30 V
Accuracy ± 2% of full scale
Scale Length 6.2 cm
Sensitivity 10 kper V
Impedance 0–3V, 39 k/V; 0–15V, 150 k/V
Frequency Response (AC) 20 Hz to 50 kHz, ± 3 dB
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: [email protected]