Trek 341B High-Voltage Electrostatic Voltmeter - Manual (Page 2)

Model 347 Specifications
Performance
Measurement Range 0 to ±20 kV DC or peak AC
Measurement Accuracy Better than ±0.1% of full scale, referred to
the voltage monitor
Speed of Response
(10% to 90%) Less than 200 µs for 1 kV step. Less than
5 ms for 20 kV step change
Full Signal Bandwidth DC to better than 25 Hz
Stability
Drift with Time Less than 100 ppm/hour, noncumulative
Drift with Temperature Less than 100 ppm/˚C
Voltage Monitor
Output A buffered output provides a low-voltage
replica of the measured voltage
Ratio 1/100th of the measured voltage
Output Noise Less than 20 mV rms*
Output Impedance Less than 0.1 W
Voltage Display
Voltage Display 4 ½ digit LED display
Range 0 to V ±19.99 k
Resolution 1 V
Zero Offset ±2 counts, referred to the voltage monitor
Sampling Rate 3 readings per second
Features
High Voltage Ready LED LED indicator illuminates when the Model
341B is ready to make high-voltage
measurements
High Voltage ON-OFF Two-position toggle switch that turns on
and off the high-voltage power supply
inside the instrument
Zero Control A 10-turn control to null offsets or other
zero errors that occur within the system
Mechanical
Dimensions 230 mm H x 441 mm W x 432 mm D
(9.06” H x 17.36” W x 17” D)
Weight 17 kg (37 lb)
Voltage Monitor
Output Connector BNC connector
Ground Receptacle Green binding post
Operating Conditions
Temperature 0°C to 40°C (32°F to 104°F)
Relative Humidity To 90%, noncondensing
Altitude To 2000 m (6561.68 ft.)
Probe-to-Surface
Separation 3 mm ±1mm (recommended)
Electrical
AC Line Cord
Receptacle Standard 3-prong with integral fuse holder
Line Voltage Factory set for one of two ranges: 90 to 127
V AC or 180 to 250 V AC, at 48 to 63 Hz
Power ON/OFF Two-position rocker switch that turns ON
and OFF the main power to the instrument
Supplied Accessories
Operator’s Manual PN: 23306
Line Cord PN: N5002 (for 90 to 127 V AC)
PN: Determined by the geographical
destination (for 180 to 250 V AC)
Optional Accessories
Probes Please refer to Page 1
Probe Line Driver
(required when used
with the 341B-1 and
an extended cable
length) Model: 3460-1
Probe Extension
Cable (from the 341B
to the probe) PN: 17218, Model 3450EC Probe Extension
Cable
Full-Rack Mount Kit Model 603RA (19-inch)
Certification
TREK, INC. certifies that each Model 341B is tested and calibrated to
specifications using measurement equipment traceable to the
National Institute of Standards and Technology or traceable to
consensus standards.
*Measured using the true rms feature of the Hewlett Packard Model 34401A digital multimeter Copyright ã 2012 TREK, INC. All specifications are subject to change. 1234/DEC
Measurement and Power Solutions TM