PFM-711A Electrostatic Field Meter
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  • PFM-711A Electrostatic Field Meter
    Hand held field meter locates and measures electrostatic field density
    • The Original Dual Range Portable Field Meter
      • - Measure in 1 volt/in increments 0 to ±1,999 Volts,
      • - Or in 10 V/in increments 0 to ±20,000 Volts
    • Chopper Stabilized and Precise
      • - Tolerance 0 - ±5,000 Volts/in <±2% error
      • - Will not drift in ionized environmentse
    • Red "Bulls Eye" ranging lights helps obtain excellent measurements
    • Sample "HOLD" Button adds measurement convenience
    • Analog Output for real time data output
    • Use with Prostat CPM-720A Charge Plate Monitor and PCS-730 Charging Source
      • - Allows Measurement Documentation & Data Logging
      • - Use with Prostat PGA-710B AutoAnalysis System or X-Y Plotter
      • - Analyze Footwear/Flooring Combinations
      • - Verify Ionizer Balance and Decay Time Performance
    Accurate Static Field Measurements
    Measure Electrostatic Fields Accurately
    The PFM-711A Field Meter is an accurate electrostatic field measuring device. The PFM-711A circuitry is a digital, electronic chopper design, which allows the instrument to make electrostatic field measurements in areas where ionized air is present.

    For accurate, repeatable performance, the PFM-711A must be grounded during normal operations. Used by itself, the PFM-711A will measure electrostatic fields emanating from virtually any flat surface or object.

    Dual Range Fieldmeter
    Measure in 1 Volt and 10 Volt Increments
    In the KV/INCH range, the PFM-711A will indicate electrostatic field voltage from 0 to ±20,000 volts in 10 volt increments at one inch distance from the charged surface.

    In the V/INCH range, the instrument measures field density from 0 to ±1,999 volts in 1 volt increments at one inch distance from the charged surface. The instrument is easy to use and its controls are designed for one hand operation.

    Grounded Field Meter
    Provides a Ground Reference
    The PFM-711A meter case is conductive. It provides the ground reference for its measuring circuit. For accurate measurements, it is necessary that the person holding the meter be properly grounded, or the meter has a ground connection made to the metal snap on the case.

    Ground the case by wearing a functional wrist strap that is properly grounded. Turn the meter on by selecting the desired range. Press the SAMPLE HOLD button down so that it latches in the lower or SAMPLE position, and HOLD is not indicated in the meter display. Adjust the display to zero (0) volts by rotating the ZERO control.

    Perfect to tool to measure sensitive ESD devices
    Bulls Eye for Accurate Measurements
    The ranging lights help position the instrument for accurate measurements. Align the front sensor of the PFM-711A Field Meter approximately one inch from the surface or object being measured. Move the instrument toward, or away from the surface until the RED Bulls Eye is focused on the test surface.

    Once the instrument is properly positioned, the PFM-711A will indicate the electrostatic field measured on its display. If desired, push the Sample/HOLD button (S2) once to lock the indication on the display. The HOLD indication will also appear on the instrument display.

    Compatible with the Autoanalysis
    Use it with a Recording Device
    The PFM-711A is the most flexible field meter in the ESD control marketplace. Combined with a variety of accessories, it can perform many different measurements to analyze the static sensitive process or environment.

    The analog output allows documentation of measurements when used in conjunction with X-Y plotter, analog data recording device, or the Prostat Autoanalysis System. (Recording device not supplied.)

    Technical Specifications


    High Range 0 V to ±19.99 kV (at 1” ±0.03" distance):
    Least significant digit indicates volts at one inch (kV/in) in 10 Volt increments

    Low Range 0 V to ±1,999 V (at 1” ±0.03" distance):
    Least significant digit indicates volts at one inch (V/in) in 1 Volt increments.

    Measures higher voltages at greater distances, e.g., at 2” double indicated voltage, at
    4” multiply indicated voltage by four.


    ±5% from 0 V to 10 kV
    Tolerance at > 10 kV depends on conditions and handling
    Accuracy unaffected by the presence of air ionization.
    Note: Performance when mounted in laboratory fixture positionned 1 inch from a 6”x6” reference plate


    Red “Bulls Eye” at 1” ±0.03" distance


    3½ digit Liquid Crystal Display with 0.4” digit height.
    Automatic polarity, HOLD and LOW BATTERY indicators


    Digital display updates three (3) times per second.
    Analog Output Time Constant: Either Range 0.1 sec.
    Display Time Constants: High Range 0.2 sec., Low Range 2.0 sec.


    Analog signal output and 30” two conductor cable provided.
    ±10.0 kV meter reading equals ±1.0 Volt output


    Three position slide switch: KV/INCH - OFF - V/INCH
    Sample/HOLD push button, and ZERO adjust knob.


    Meter circuit grounded through the conductive case and 10 mm snap fastener mounted on back of case.


    9 VDC alkaline battery.
    Battery life minimum 40 hours.


    2.4” x 4.2” x 0.9” (6.1 cm x 10.7 cm x 2.3cm)
    1.3” deep with zero knob and snap fastener (3.3 cm)


    5 oz with battery installed (142g)


    User Manuals

    Release Date

    600 KB

    Data Sheets

    Release Date

    37 KB