Basic Electrostatics System
Model No. ES-9080
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, easily
replaced by opening the back casing of the electrometer. One of the
front panel range-indicator LEDs will blink slowly when the batteries
need to be replaced. When replacing batteries, do not touch any of the
components or wires in the integrated circuit panel, since 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 conducting sphere
experiments. All of the voltage
outputs (except for the 30 volt
output) have a series resistance
associated with them which limit 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.
meter display
Zero button, ground
and remove excess
charge
output for
signal interface
mechanical zero
adjust screw
(adjust with
power off)
connect to
earth ground
connect test
lead here
push to turn
ON/OFF
Slide to select
voltage range
(3, 10, 30, 100)
Figure 1: Front Panel Controls of the Electrometer
Figure 2: Electrostatics
Voltage Source
ground