Trek 320C DC Stable Electrostatic Voltmeter - Manual

Model 320C
High-Sensitivity , DC Stable
Electrostatic Voltmeter
! Measurement Range:
0 to ±100 V DC or peak AC
! Sensitivity: 1 mV
! Speed of Response:
Less than 300 ms for a
100 V step
! Measurement Accuracy:
Better than 0.05% of
full scale
! Null Voltage Source:
10 volt nulling supply for
contact potential
measurements
! Response Speed Control:
AC response adjusted for
speed/noise
! Drift Spacing/Null
Adjustment:
Minimizes variations in
voltage values as probe to
test surface spacing
changes
! Available Monitor Outputs:
1:1 of Voltage Monitor
Output 10:1 or 20:1
(switch selectable)
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The Trek Model 320C Electrostatic Voltmeter is a versatile
instrument which is used for a variety of electrostatic
applications including contact potential measurements,
materials evaluation, and electret studies. The Model 320C
makes highly accurate, noncontacting measurement of
electrostatic potentials of 1 mV to 100 V over a wide range of
probe-to-surface distances. The Model 320C is specifically
designed for high sensitivity applications.
The Model 320C has adjustments to compensate for many
sensitive testing conditions. A calibrated Null Voltage supply
of ±10 volts nulls contact potentials when measuring
voltages on dissimilar materials. The Null Voltage source may
be used to null different work function voltages of the test
surface or to function as a zero suppression voltage source.
A response Speed Control adjusts the speed/noise tradeoff
of the Model 320C AC response. A self locking Drift/Spacing
Null Adjustment
The Trek patented low impedance probe assures
measurement accuracy which is essentially independent of
probe-to-test-surface spacing while eliminating the external
environmental effects of high humidity and contamination,
such as airborne dust, toner, ions and chemicals, on
measurement accuracy.
minimizes the variation in monitored voltage
values as the probe to test surface spacing changes.
The front panel has an easy to read 3½ digit LED display. The
detected output voltage can be monitored through a 1:1
voltage monitor output and a switch selectable scale of 10:1
or 20:1 voltage monitor output.
Measurement and Power Solutions TM
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