Hand-Held Electrostatic Field Meter - Model 511

Trek Model 511

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The Model 511 is a high-quality, portable, chopper-stabilized, non-contacting electrostatic field meter designed for measuring and auditing electrostatic fields in ESD sensitive areas so that operators can find them before them become a problem. Features of the Model 511 such as its LED indicator with a switch selectable measurement range of either ±2 kV or ±20 kV, add to instrument flexibility and benefit the operator through its ease of use. Operators also benefit from the ability to obtain or audit reliable and accurate ESD measurements in
either ionized or non-ionized environments.
The Model 511 can also be used for testing balance and +/- decay capabilities of ionizers when the optional Ionizer Test Kit (which includes the Model 511, the Model 511-CP Charge Plate and the Model 511-CH Charger) is ordered. 

  • Audit/ Monitor electrostatic decay.
  • Monitor ESD in semiconductor production
  • Measure electrostatic fields on film, polymers and paper.
  • Assess charge generation of materials, equipment and personnel.


 Measurement Range  
 Low Range :   0 to ±2 kV / inch
 High Range :   0 to ±20 kV / inch
 Measurement Accuracy  
 Voltage Monitor Output:   Better than ±5% of reading, ±10 mV
 Voltage Display :   Better than ±5% of reading, ±2 counts