Electrostatic Products

Monroe 284

Intuitive, Accurate Nanocoulomb Meter

Advanced Energy's Monroe 284 nanocoulomb meter offers two ranges and allows you to easily and accurately measure the charge generated on electronic components by triboelectric charging processes. 

  • Ranges Available: 20 nC and 200 nC
  • Accuracy: 2% of reading, + zero offset, +/- 1 lsd
  • Analog output
  • Battery-powered
  • Overview
  • Technical Specs
  • Documents
  • Service & Support
  • Distributors


Static charges may build up on integrated circuits as they vibrate and slide in shipping tubes or on PC boards due to contact with protective packaging materials. The MonroeTM 284 nanocoulomb meter is ideal to help select and evaluate packaging materials. It allows you to take direct charge measurements by dropping materials into the optional Faraday cup. The charge is then transferred to the cup and measured. You can also use an oscilloscope probe to take charge measurements on smaller objects and omit the Faraday cup.



  • Simplify operations
  • Use with minimal training
  • Use with ordinary oscilloscope probe for contact measurement of small objects
  • Measure the performance of ESD materials


  • Portable, self-contained
  • Battery-powered
  • Easy to operate
  • Large LCD display
  • Two ranges
  • Interchangeable cups
  • Analog output
  • Meets requirements of EIA-541 standard
  • Point contact measurement of small areas

Select specifications are shown below. Please see product data sheet for additional specifications.

  • Performance

    Available Ranges

    20 nC and 200 nC


    2% of reading, + zero offset, ±1 lsd


    0 to ±2 volt analog


    0.1 pC/sec typical

  • Mechanical


    9 V Eveready #216 or equivalent NEDA #1604, battery life over 400 hours


    6 x 3.5 x 2.125 in (15 x 9 x 5.5 cm)


    8.5 oz (0.24 kg) with battery

Specifications are subject to change without notice. Not all options and accessories are available for all models and configurations. Dimensions listed generally refer to standard configurations and module bodies only. Please confirm technical specifications and customizations with a sales representative. Advanced Energy is not responsible for errors or omissions.

Data Sheets

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Product Support

U.S.: +1 800 446 9167
Asia: +86 29 8874 1895
China: 400 8899 130
EMEA: +44 800 032 1546
U.K.: 08000 321 546

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