Manual

ManualsBrandsTrek ManualsEquipment370 DC Stable Electrostatic Voltmeter

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.

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

Measurement and Power Solutions

www.trekinc.com

Summary of content (2 pages)

PAGE 1
Model 370 DC-Stable Electrostatic Voltmeter ! Very High Speed of Response: Less than 50 ms for a 1 kV step ! ! Measurement Range: 0 to ±3 kV DC or Peak AC ! 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.
PAGE 2
Model 10/40A Specifications Model 370 Specifications All specifications are with a 3800E-2 probe at a probe-to-surface separation of 2 mm unless otherwise noted. Performance Measurement Range 0 to ±3 kV DC or peak AC. Measurement Accuracy At the Voltage Monitor Better than ±0.05% of full scale. At the Voltage Display Better than ±0.1% of full scale ±1 count, referred to the voltage monitor. Speed of Response (10% to 90%) Less than 50 ms for a 1 kV step.