Trek 520 Series Hand-Held Non-Contacting Electrostatic Voltmeters - Manual (Page 2)

Common Features
Power On/Off Push-button switch
Stability
Drift with Time Less than 600 ppm/hour, noncumulative
Drift with
Temperature Less than 600 ppm/°C
Operating Time Approximately 8 hours with a full battery
Hold A momentum push-button will command the
voltage display to hold the value displayed
until the switch is released
Voltage Display Range A 3 ½ digit liquid crystal display
Model 520 0 to ±1999 V
Model 523 0 to 19.99 kV
Resolution
Model 520
1 V
Model 523 10 V
Zero Offset
Model 520 Less than ±1 count
Model 523 Less than ±4 counts
Sampling Rate 2.5 readings per second
Power Requirements One (1) 9-volt NEDA 1604 battery, IEC 6R61
battery or equivalent
Ground Receptacle Snap-on connector
Operating Conditions
Temperature 15°C to 35°C
Relative Humidity To 85%, noncondensing
Supplied Accessories
Operating Instructions (Model 520) PN: 23100
Operating Instructions (Model 523) PN: 23099
Ground Reference Cable Assembly PN: N9079
9-volt Battery PN: F1003R
Optional Accessories
Carrying Case PN: 43469
Model 520 and 523 Specifications
Model 520 Performance
Measurement Range 0 to ±2 kV DC
Measurement
Accuracy
Model 520-2 contains an analog monitor output (1.3 mm jack) which
provides a low-voltage replica of the measured voltage.
Ratio 1/1000th of the measured voltage
Speed of Response
(10% to 90%) Less than 25 ms for an input step change of
2 kV
Output Impedance 47 W
Model 520 Mechanical
Dimensions 31 mm H x 59 mm W x 173 mm D
(1.2” H x 2.4” W x 6.8” D)
Weight 200 g with battery
(7 oz.) with battery
Model 523 Performance
Measurement Range 0 to ±20 kV DC
Measurement
Accuracy
Model 523 Mechanical
Dimensions 31 mm H x 59 mm W x 183 mm D
(1.2” H x 2.4” W x 7.3” D)
Weight 200 g with battery
(7 oz.) with battery
Copyright © 2013 TREK, INC. All specifications are subject to change. 1332/JRB
Measurement and Power Solutions TM
0 10 20 30 40 50
0 V
V
V x 2
520 Performance
Surface Voltage
Typical Fieldmeter
Probe-to Surface Separation (mm)
Displayed
Voltage
Model 520 Compared to Typical Fieldmeter
Displayed Voltage vs. Probe-to-Surface Separation
0 20 40 60 80 100
0 V
V
V x 2
523 Performance
Surface Voltage
Typical Fieldmeter
Probe-to Surface Separation (mm)
Displayed
Voltage
Model 523 Compared to Typical Fieldmeter
Displayed Voltage vs. Probe-to-Surface Separation
*Measured using the true rms feature of the Hewlett Packard Model 34401A digital multimeter