Trek P0865 User Manual

Model P0865

High-Speed, High-Voltage
Electrostatic Voltmeter

! Response Time

less than 200 ms
for a 1 kV step

!

! Measurement

Range ±10 kV DC
or peak AC

The Trek Model P0865 is a DC stable, precision electrostatic
voltmeter for makin g noncontacting surfa ce voltage
measurements in the range of 0 to ±10 kV DC or peak AC.

Research and industrial applications include charge
accumulation monitoring of the LCD production processes,
monitoring surface potentials in the electrostatic painting
process, research and development in the electrophotographic
process, and measuring electrostatic potentials on polymers,
rubber, fabrics, and paper.

The Model P0865 employs a field-nulling technique for
noncontacting voltage measurement that achieves DC stability
and high accuracy even if the probe-to-surface spacing changes.
This permits measurements of either stationary or moving
surfaces without the need to establish fixed spacing to maintain
accuracy.

The Model P0865 patented probe design eliminates the need for
close tolerance components. This significantly improves noise
and drift performance, both in the presence of contaminating
particulates and under conditions of high humidity and wide
temperature ranges.

A precision voltage monitor provides a low-voltage replica of the
measured electrostatic potential for monitoring purposes, or for
use as a feedback signal in a closed-loop system.

!

! Measurement

Accuracy
better than
±0.1% of full
scale

!

! Precision Voltage

-

Monitor output

!

! High

Temperature
Probes available

!

! Zero Control for

offset nulling

!

The Model 3450 probe assembly includes a sensitive electrode
and preamplifier, which is driven to the same potential as the
measured value to eliminate arcing there between. A three (3)
meter cable permits remote probe positioning. The Model
P0865 can be operated on a bench top or, with optional
hardware, in a standard 19-inch rack.

Measurement and Power Solutions

www.trekinc.com

! Easy-to-Read

LED display

!

! compliant

TM

Model P0865 Specifications

All specifications are with a Model 3450 probe at a probe-to-surface separation of 3 mm, ±1 mm.

Model 10/40A Specifications

Performance Features (cont.) General

Measurement Range

0 to ±10 kV DC or peak AC.

Accuracy

Better than ±0.1% of full scale
(as referred to the voltage monitor).

Speed of Response (10% to 90%)

Less than 200 ms for a 1 kV step
change. Less than 5 ms for a
20 kV step change.

Full Signal Bandwidth

DC to better than 50 Hz.

Stability

Drift with Time

Less than 100 ppm/hour,
noncumulative.

Drift with Temperature

Less than 200 ppm/°C.

Features

High-Voltage Ready LED

A LED indicator illuminates when the
Model P0865 is ready to make high­voltage measurements.

High Voltage On/Off

A two-position toggle switch that turns
on and off the high-voltage power
supply inside the instrument.

Voltage Monitor Output Dimensions

A BNC output provides a low-voltage 134 mm H x 432 mm W x 432 mm D
replica of the measured voltage.

Scale Factor

1/1000th of the measured
voltage.

Output Noise

Less than 20 mV rms (measured

(5.25² H x 17² W x 17²D).

Weight

15 kg (33 lb).

Voltage Monitor Connector

BNC connector.

using the true rms feature of the
Hewlett Packard Model 34401A
digital multimeter).

Output Impedance

Less than 0.1 W.

Voltage Display

4½ digit LED display.

Range

0 to ±10,000 V.

Resolution

1 V.

Zero Offset

Ground Receptacle

Green binding post.

AC Line Cord Receptacle

Standard three-prong line cord
receptacle with an integral fuse
holder.

Line Supply

Factory set for one of three nominal
AC line voltages: 100 V, 115 V, or
230 V AC [CE compliant], at

48 to 63 Hz (specify when ordering).
Less than ±2 counts,
referred to the voltage monitor.

Sampling Rate

3 readings per second.

Operating Conditions

Temperature

0 °C to 40 °C.

Relative Humidity

Power On/Off

A two-position rocker switch that turns
on and off the main power.

To 90%, noncondensing.

Probe-to-Surface Separation

3 mm ±1 mm (recommended).

Zero Adjust

A 10-turn control to null offsets or
other zero errors which occur within
the system.

Model P0865 Ordering Information

Model P0865

Item Part No.

P0865 Electrostatic Voltmeter (100 V AC). . . . . . . . . . . . . . . . 13424F

P0865 Electrostatic Voltmeter (115 V AC) . . . . . . . . . . . . . . . 13424G

P0865 Electrostatic Voltmeter (230 V AC) . . . . . . . . . . . . . . . 13424K

Optional Accessories

Item Part No.

Model 3 . . . 17218

Model 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17181

Full Rack Mounting Kit

607RA Rack Mount Kit (19-inch) . . . . . . . . . . . . . . . . . . . C4062

450EC Probe Extension Cable (from unit to probe)

460-1 Line Driver

Copyright ã 2011 TREK, INC.
All specifications are subject to change.
1147/DEC

Probes

Item Part No.

Standard Resolution Probe
Model 3450 side-viewing

High Temperature Probes (up to 100 °C)
Model 3455ET end-viewing
Model 3453ST side-viewing

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17157

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 17284

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 17285

Certification

TREK, INC. certifies that each Model P0865 is tested and calibrated
to specifications using measurement equipment traceable to the
National Institute of Standards and Technology or traceable to
consensus standards.

TREK, INC. • 190 Walnut Street • Lockport, NY 14094 • USA • 800-FOR TREK

(fax) • www.trekinc.com • [e-mail] 716-438-7555 • 716-201-1804