Trek 821HH Hand-Held Electrostatic Voltmeter - Manual (Page 2)

Features (cont.)
Menu A push-button for entering the menu system to
Review Data, Erase Memory and Set Auto Off
functions
Mechanical
Dimensions 240 mm H x 140 mm W 52.5 mm D
(9.5” H x 6” W x 2” D)
Weight 1.13 kg (2.5 lb)
Ground Reference
Receptacle Banana Jack
Voltage Monitor
Connector 2.5 mm plug
Operating Conditions
Temperature 15°C to 35°C (59°F to 95°F)
Relative Humidity 5% to 75%, noncondensing
Altitude To 2000 meters (6561.68 ft.)
Electrical
Power Requirements Internal NiMH battery or
External 15 V @ 1 A Supply / Charger
Battery Operating
Time Greater than eight hours of continuous
operation
Supplied Accessories
Operators’ Manual PN: 24012 Manual with software
AC/DC Adapter 15 V @ 1 A universal AC/DC adapter
Output Monitor Cable With 2.5 mm plug
Other USB Cable
Certifications
Calibration TREK, INC. certifies that each Model 821HH is
tested and calibrated to specifications using
measurement equipment traceable the National
Institute of Standards and Technology or
traceable to consensus standards
CE Compliance
IEC 61010-1 Safety requirements for electrical equipment for
measurement, control and laboratory use - Part
1: General Requirements
IEC 61326-1 Electrical equipment for measurement, control
and laboratory use - Part 1: General
requirements
Model 821HH Specifications
Performance
Measurement Range 0 to ±2 kV DC or peak AC
Accuracy
At the Voltage
Monitor Output Better than ±1% of full scale
At the Voltage
Display Better than ±1% of full scale, ±1 digit
Bandwidth (-3 dB) 1000 V p-p sine wave: better than 1 kHz (-3 dB)
Input Characteristics 14 Resistance greater than 1 x 10 W
-14 Capacitance less than 1 x 10 F
-14 Current less than 1 x 10 A
Stability Drift with
Time (probe in free
air) Less than 2 V/second
USB Data Rate 300 ms
Displayed Information
Voltage 0 to ±2000 V with a resolution of 1 V
Zero Offset
Battery Status
Time / Date
Temperature
Maximum and
Maximum Readings
Features
Automatic Shutoff User settable: 5 minutes, 10 minutes, 15
minutes or disabled
Voltage Monitor
Output (2.5 mm jack) An output provides a low-voltage replica of the
measured voltage
Scale 1/1000th of the measured voltage
Offset Voltage Less than ±10 mV
Output Noise Less than 10 mV rms *
Speed of Response
(10% to 90%) Less than 500 µS for an input step change of
1 kV
Power ON/OFF A push-button
Record / Hold Pressing the Record / Hold push-button will
hold the measurement, while pressing and
holding the Record / Hold button for a period of
greater than 3 seconds will store the
measurement
*Measured using the true rms feature of the Hewlett Packard Model 34401A digital multimeter Copyright © 2013 TREK, INC. All specifications are subject to change. 1304/JRB
Measurement and Power Solutions TM