Trek 706B Portable Electrostatic Voltmeter User Manual
Page 2

PERFORMANCE
FEATURES
GENERAL
PROBE
NOTE: The Model 706B is 
designed to make electrostatic 
voltage measurements only! 
Certification
Measurement Range
Range Switch
Power Requirements
0 to +1 kV or -1 kV DC
A two-position switch is used to
Two (2) 9-volt alkaline batteries.
(switch selectable).
select the measurement range of 
either 
0 to +1 kV or 0 to -1 kV.
Operating Time
Accuracy
10 hours after battery replacement.
Better than 0.5% of full scale.
TEST/READ Switch
In the TEST position, if the digital
Operating Conditions
display indicates a value lower than
Temperature
1100, the batteries should be
5 °C to 35 °C.
Relative Humidity
replaced. In the READ position, the
Recommended Probe-to-Surface
To 85%, noncondensing.
measurements are displayed.
Separation Distance
1 mm to 5 mm.
Voltage Display
Dimensions
3½ digit liquid crystal display.
39 mm H x 130 mm W x 134 mm D,
Trek Model 701P-76S Probe
Range
(1.6² H x 5.2² W x 5.3²L).
Dimensions
0 to ±1000 V.
8.7 mm diameter x 70 mm L
Resolution
Weight
(0.35² diameter x 2.75² L).
1 V.
455 g (1 lb), with batteries.
Zero Offset
Caution: The metallic components of
Less than ±1 count.
Ground Receptacle
the probe are driven to the measured
Sampling Rate
The g
reen banana jack must be
surface voltage level with a current
3 readings per second.
connected to ground to maintain
capability of ±0.5 milliamperes. These
measurement accuracy
.
metallic surfaces should not be 
connected to ground or touched during 
Power On/Off
operation.
A two-position toggle switch.
Cable Length
1830 mm (72").
To ensure safety, the Model 706B 
should never be used to perform 
TREK, INC. certifies that each Model 706B
Aperture Size (oval shaped)
measurements of “hard” voltage
is tested and calibrated to specifications 
using measurement equipment traceable 
3.18 mm W x 6.35 mm L
sources or voltage sources
to the National Institute of Standards and
which can deliver currents high
(0.125² W x 0.25² L).
Technology.
enough to cause harmful shocks 
or personal injury.
Aperture Orientation
RoHS and CE compliant.
Side viewing.
Model 706B Included Accessories
Certification (cont.)
Item
Part No.
Portable Electrostatic Voltmeter . . . . . . . . . . . . . . . . . . . . 706B
Operator's Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23389
Two (2) (9 V) Alkaline Batteries . . . . . . . . . . . . . . . . . . . F1003R
Ground Patch Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N9044
RoHS compliant
Low Voltage Safety Compliance (IEC 61010)
Overvoltage Category
CAT I: Peripheral level outputs (less than 60 volts).
Pollution Category
Degree 1: Operate in environments where no 
pollution or only dry, nonconductive pollution occurs.
Model 10/40A Specifications
Model 706B Specifications
Copyright Ó 2011 TREK, INC. 
All specifications are subject to change.
1122/DEC 
All specifications are at a probe-to-surface separation of 3 mm unless otherwise noted.
TREK, INC. • 190 Walnut Street • Lockport, NY 14094 • USA • 800-FOR TREK
(fax) • www.trekinc.com • [email protected]
716-438-7555 • 716-201-1804
