Trek 820 High Impedance Contacting_Non-contacting Voltmeter - Manual (Page 2)

Model 820 Specifications
Performance
Measurement Range 0 to ±2 kV DC or peak AC
Measurement Accuracy
Voltage Monitor Output Better than ±0.1% of full scale
Voltage Display Better than ±0.1% of reading, ±1 digit
(referred to measured input)
Speed of Response
(10% to 90%) Less than 500 µs for 1 kV step
Large Signal Bandwidth
(-3 db) DC to greater than 200 Hz for 4 kV pp
Stability
Contacting - Drift with
time at 22 ºC Less than 6 V/minute, cumulative
(referred to input)
Noncontacting Better than 100 ppm/˚C
Input Resistance Greater than 1 X 10 15 W
Input Capacitance -15 Less than 1 X 10 F
Voltage Monitor
Output A BNC output provides a buffered low-
voltage replica of the measured voltage
Ratio 1/200th (standard)
Output Current ±5 mA (minimum)
Output Noise Less than 10 mV rms
Output Impedance Less than 0.1 W
Front Panel Meter
Voltage Display 3 ½ digit LED display
Range 0 to V ±1.9 k
Resolution 1 V
Zero Offset Less than or equal to 1 count ±
Sampling Rate 1 ms between data points
Features
USB Connector Allows data transfer to a computer with a
sampling rate of 1 ms between data
points (stream data or block data transfer
protocols). PC software can graph the
unit’s output
Reset Button/Connector A momentary front panel push-button
switch or rear panel external TTL input
signal initiates a reset function.
Digital Enable A TTL compatible input to enable or disable
the unit’s high-voltage measurement. A TTL
high will disable while a TTL low will enable
the measurement.
.
Mechanical
Dimensions 10.2 cm H x 22.9 cm W x 33 cm D
(4” H x 9” W x 13” D)
Weight 1.8 kg (4 lb)
BNC Connectors Voltage Monitor
Digital Enable
Reset
USB Port Allows data transfer to a computer with a
sampling rate of 1 ms between data points
Ground Receptacle Threaded ground stud
Power ON/OFF A momentary push-button
Probe Connector
Location Front panel
Operating Conditions
Temperature 10°C to 35°C (50°F to 95°F)
Relative Humidity 0 to 75%, noncondensing
Altitude To 2000 m (6561.68 ft.)
Electrical
AC Line Cord
Receptacle A universal line PFC-type wall cube provides
input power to the ESVM
Line Voltage 24 V DC, ±5% @ 1 A
DC Connector 2.1 mm DC power plug
Supplied Accessories
Operator’s Manual
with software PN: 24003
Ground Cord PN: N9082
AC/DC Universal
Power Cube PN: L5190 (
264 V AC) Universal power cube at 90 V to
Probe Model 820P
Probe Tip Ceramic tip of 0.8 mm diameter
Optional Accessories
Probe Model 820P
Probe Tips Ceramic tip of 0.8 mm
Additional tips can be customized in various
other sizes as small as 100 µm to cater to a
wide field of applications; please contact the
factory for more information
Note: All specifications measured with a 5-minute warmup time. Copyright ã 2012 TREK, INC. All specifications are subject to change. 1234/DEC
Measurement and Power Solutions TM