Monroe Electronics 282A User Manual
Model 282A-1
Digital Stat-Arc 3
Electrostatic Fieldmeter
Operator’s Manual
P/N 0340130
282A-1/100
100 Housel Ave PO Box 535 Lyndonville NY 14098
1-800-821-6001 585-765-2254 fax: 585-765-9330 monroe-electronics.com
Rev A
Description
Model 282A-1 Digital Stat-Arc 3 is a pocket-size, non-contacting static meter which produces
consistently accurate readings, is easy to use, and is backed by a 2-year warranty, the best in the
business.
The 282A-1 features:
Pulsing-beam range finder for always obtaining the correct reading
Drift- free accuracy even in ionized environments
HOLD button to capture transient readings
Recorder output and 40-hour battery life for unattended monitoring
Exclusive auto-zero circuit
Available charged-plate adaptor (Model 282CPS)
With the Model 282A-1, accuracy is unquestioned. Holding the instrument so the range finder LED
beams form a non-pulsing circle indicating you’re at exactly the right distance (1 inch) from the target for
readings up to 20 kV. To read higher voltage, use the greater distances given in Specifications.
For location where it’s hard to read the display, you can freeze it, and then read it. Simply position
the meter at the correct distance from the target, press and release the HOLD button, move the
instrument to a more convenient position, then read the display.
Zeroing is push-button simple, and Model 282A-1’s chopper stabilized circuitry is immune to
ionization so accuracy is assured in all environments. For long term monitoring, the front panel output
jack provides easy interfacing with a recorder, oscilloscope or automated data acquisition system.
Specifications
Display: LCD 3 ½ digit, auto-polarity readout, HOLD and LOW BATT indicators
Range: 0 to 19.99kV at 1 inch. Voltages of 20kV and higher may be read by increasing the distance
to the target:
Kv Distance Multiply Reading
By
0 - 40 4.0 inches 2
0 - 60 6.5 inches 3
0 - 80 8.5 inches 4
Accuracy: 5% of reading, + zero offset, + 2 lsd
Analog Output:
Jack Type: Accepts standard 3/32 inch (2.5mm) monaural phone plug
Amplitude: 1V signal denotes 10kV reading at I inch for high impedance loads
Impedance: 10k Load > 1 meg for < 1% error. Sleeve GND tip 1/10,000
Response Time: Typ. 80 – 100 msec 10 – 90%
Battery Type: 9V NEDA #1604 or equivalent life: 40 hours normal use, with alkaline battery
Dimensions: (L x W x H) 2.4 x 4.2 x 0.9 inches (6.1 x 10.7 x 2.3cm)
Operating Environment: 0 –50
0
C, 0-85% RH (non-condensing) unaffected by ionizing equipment
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