Basic Electrostatics System
ES-9080B
6
®
With these features, you’ll find that your electrostatics demonstrations and labs are easier to
perform and, with quantitative data, are more informative.
The electrometer is powered by four AA-alkaline batteries (included) that can be replaced by
opening the back casing of the electrometer. One of the front panel range-indicator light
emitting diodes (LEDs) will blink slowly when the batteries need to be replaced. When
replacing batteries, do not touch any of the components or wires on the integrated circuit
panel because they are all static sensitive.
Electrostatics Voltage Source (ES-9077)
The ES-9077 is a high voltage, low current power
supply designed exclusively for experiments in
electrostatics. It has outputs at 30 volts DC for
capacitor plate experiments, and 1 kV, 2 kV, and 3 kV
outputs for the Faraday ice pail and conductive sphere
experiments. All of the voltage outputs (except for
the 30 volt output) have a series resistance associated
with them which limits the available short-circuit
output current to about 8.3 microamps. The 30 volt
output is regulated, but is capable of delivering only
about 1 milliamp before falling out of regulation. An
AC adapter (not shown) is included.
meter display
zero button, ground and
remove excess charge
output for interface
(not shown)
connect to earth ground
connect signal input
cable here
push to turn ON/OFF
Figure 1: Front Panel Controls of the Electrometer
push to select
voltage range
(3, 10, 30, 100) VDC
light emitting diodes
(LEDs) show the
selected range
ground
Figure 2: Electrostatics Voltage Source
30 V
1 kV
2 kV
3 kV
