Table of Contents
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Signal
Output
port
Voltage
range
indicators
Voltage
range
selector
push
button
ON-OFF push
button
Included Items
Basic Electrometer
BNC to Alligator Clip Cable*
Grounding Cable*
Interface Cable*
800-772-8700
®
Basic Electrometer
Meter
display
Digits
display
ZERO
button
ES-9078A
Signal
Input
Ground
port
port
Included Items
Banana Plug Patch Cord*
Alligator Clip*
AA-Cell Alkaline Battery (4) (not shown)
(*shown on page 2)
Instruction Manual
012-12856A
*012-12856*
Access to
battery
compartment
www.pasco.com
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Summary of Contents for PASCO ES-9078A
- Page 1 Instruction Manual ® 012-12856A *012-12856* Basic Electrometer ES-9078A Meter display Digits display Signal Output port Voltage range indicators ZERO button Access to Voltage battery range compartment selector Signal push Input button ON-OFF push Ground port button port Included Items Included Items...
- Page 2 The Banana Plug Patch Cord connects to the Ground port on the Basic Electrometer. The Signal Input Cable connects to the BNC jack at the Signal Input Port. The Interface Cable connects between the Signal Output port of the Electrometer and a PASCO inter- face.
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Page 3: Operation
ES-9078A 012-12856A Operation Operation The controls on the front panel of the electrometer are explained in Figure 1. Whether you’re using the electrometer to measure voltage, current, or charge, the following procedure should be followed each time you turn on the electrometer. -
Page 4: Measuring Voltage
Under most conditions, the best way to mea- proof sure charge is by induction. Use a proof plane plane and a Faraday ice pail, such as those included with PASCO’s Electrostatics System black (ES-9080), and shown in Figure 3.. clip pail... -
Page 5: Measuring Current
ES-9078A 012-12856A Mea suring Current The electrometer can be thought of as an infinite impedance voltmeter in parallel with a capacitor, C , as shown in Figure 4. C represents the internal capacitance of the electrometer, plus the capacitance of the leads and the capacitance of the Ice Pail, if being used. - Page 6 It is important to remember that the signal output on the ES-9078A has a fixed scale of ±10 volts. Changing the range switch on the electrometer has no effect on this scaling. By choosing the Electrometer icon in DataStudio™ (data acquisition software), displays are shown correctly scaled.
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Page 7: Specifications
ES-9078A 012-12856A Specifications Select “Electrometer (Basic)” from the list of sensors and click OK. In the Displays list, click the Meter icon. A Meter display of Voltage opens. Data Recording Note: Data recording is easier if one person handles the Electrometer and the other equipment and another person handles the com- puter or data logger. -
Page 8: Technical Support
Email: support@pasco.com For the latest revision of this Instruction Manual, visit the PASCO web site and enter ES-9078A in the Search window. Limited Warranty For a description of the product warranty, see the PASCO catalog. Copyright The PASCO scientific 012-12856A Basic Electrometer Instruction Manual is copyrighted with all rights reserved. Permission is granted to non-profit educa- tional 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.
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