Electrostatic Products

Monroe 288C

Easy-to-Use Charge Plate Monitor For Manual or Automated Testing

Advanced Energy’s Monroe 288C is the first charged plate monitor to offer onboard data storage to automate ionization system testing. The Monroe 288C performs customary manual tests or a series of automated decay and balance tests.

  • Electrometer Dynamic Range: ±1200 V
  • Charge Plate Size: 15 x 15 cm (6 x 6 in)
  • Data Storage: 1500 Readings
  • Overview
  • Technical Specs
  • Documents
  • Accessories
  • Service & Support
  • Distributors


The MonroeTM 288C is an easy-to-use, charge plate monitor for manual or automated testing. All test parameters are programmable, allowing tests to be optimized and not dictated by equipment limitations.

Once programmed, the Monroe 288C will perform a series of tests automatically: ± decays, balance, balance peaks, temperature, humidity, time/date are stored and may be reviewed via the display or downloaded to a PC. The included software permits the user to define and name ionizer locations, test setups, and sequences and upload them to the CPM. All of these features result in a flexible, easy-to-use instrument that facilitates audits while minimizing errors.


  • Perform manual and automated testing of decay and balance
  • Store up to 1500 tests total (not for each location), 600 locations, and 4 test protocols
  • Use the large, easy-to-read, high contrast LCD display
  • Configure operating parameters
  • Utilize soft keys for highly intuitive programming


  • Internal battery for portable operation
  • Detachable 6 x 6-inch plate with optional 1 x 1 in and 3 x 3 in plates
  • Built-in temperature and humidity sensors
  • Auto-ranging to 0.1V resolution below 100V Meets ESD Association Standard ANSI / ESD STM 3.1
  • CE compliant

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

  • Performance


    ±1200 V


    -3db @ 1Khz 20 V p-p
    -3db @ 10Hz 2000 V p-p


    < 12 mV rms

  • Charge Plate


    20 pF ± 2 pF


    Settable to 1 V increments


    0.3% of setting ±2.5 V

  • Mechanical

    Battery Life

    Typ > 6 hours


    280 x 229 x 152 mm (11 x 9 x 6 in)


    12.5 lb (5.7 kg)

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.


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Monroe 288B Graphing Software

Monroe 288B graphing software is a simple, yet powerful program for controlling the Monroe 288B charge plate monitor from a computer.

Documents & Support

View All Monroe 288C Accessories

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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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