Trek 370 DC Stable Electrostatic Voltmeter - Manual

Model 370
DC-Stable Electrostatic Voltmeter
The Trek Model 370 is a precision electrostatic voltmeter with the
unique capability of making noncontacting surface voltage
measurements in the range of 0 to ±3 kV DC or peak AC.
The 370 employs an electrostatic field-nulling technique which
achieves high DC stability and high measurement accuracy even if
the probe to measured surface spacing changes. This permits
measurements of either stationary or moving surfaces without the
need to establish fixed spacing to maintain accuracy.
An automatic gain control feature of the 370 eliminates the need
for manual adjustment when changing probes or when changing
the probe to measured surface separation.
The 370 also features one-step, push-button zeroing. When the
ZERO button on the front panel is pressed, the 370 automatically
adjusts the output to zero volts when the probe is coupled to a
known zero volt surface.
A precision voltage monitor provides a low-voltage replica of the
measured electrostatic voltage for external monitoring purposes,
or for use as a feedback signal in a closed-loop system.
An optional data acquisition module is available, featuring an
IEEE-488 compatible interface, 14-bit resolution, 12-bit accuracy,
and a programmable sampling period from 10 ms to 30 minutes.
The 370 can be operated on a bench top or, with optional
hardware, in a standard 19-inch rack.
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Very High Speed of
Response: Less than
50 ms for a 1 kV
step
Measurement Range:
0 to ±3 kV DC or
Peak AC
Measurement
Accuracy: Better
Than 0.05% of Full
Scale
Automatic Gain
Control (eliminates
manual adjustment)
One Step, Push-
Button Zeroing
Precision Voltage
Monitor Output
Optional Data
Acquisition Module
(with an IEEE-488
compatible interface)
Compliant
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Measurement and Power Solutions
TM
www.trekinc.com