Model 231 – Small Faraday Cup (3-3/8″ Inside Diameter)


The Model 231 Faraday Cup measures charge on materials, devices and assemblies when used in conjunction with the ETS Model 230 or equivalent nanocoulomb meters. The Model 231 includes a double-walled shielded cup, conductive rubber pad, and cover. The Faraday cup meets the requirements of triboelectric charge generation test procedures to evaluate the antistatic characteristics of material and components in accordance with industry and military specifications.  The Model 231 Faraday Cup has an inside dimension of 3-3/8″ (86mm) and a depth of 4-1/8″ (105mm) which allows for the measurement of charge on smaller objects.  A conductive rubber pad is included and attached to the bottom interior of the inner cup to reduce noise and potential damage to the items being tested.

  • Evaluate the antistatic and charging characteristics of materials, devices & assemblies
  • Double-walled shielding and for effective and reliable measurements
  • Tests in accordance with ESD Association, EIA and other industry standards
  • Conductive Rubber Pad reduces noise and damage to items tested
  •  Dimensions:
    • Inner bucket:  3-3/8″ (86mm) ID x 4-1/8″ (105mm) depth
    • Outside dimensions: 4-5/8″ (117mm) OD x 6″ (152mm) height
  • Compatible with the ETS Model 230 NanoCoulomb Meter
  • Optional Accessory: 36″ BNC-BNC cable, Teflon Insulated — minimizes leakage and measurement error
  • Model 231
  • User Manual
  • Certificate of Calibration and Calibration Decal
  • Optional Accessory: BNC Cable, Teflon Insulated (included with M 230 – NanoCoulomb Meter)