Kleinwächter EFM 022 Manual
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Kleinwächter EFM 022 Manual

Electoctatic field meter
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Manual
Electrostatic Field Meter EFM 022
System Prof. Dr.-Ing. Hans Kleinwächter

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Summary of Contents for Kleinwächter EFM 022

  • Page 1 Manual Electrostatic Field Meter EFM 022 System Prof. Dr.-Ing. Hans Kleinwächter...

  • Page 2: Table Of Contents

    Manual EFM 022 Contents 1. General Information on Electrostatics …...……………………………………… 3 1.1. Origin of Electrostatic Charge .…………………………………………… 3 2. Product Description ...…………………………………………………………… 3 2.1. Specifications .……………………………………………………………. 4 2.2. Measuring Range …………………………………………………………. 4 2.3. Caption …………………………………………………………………… 4 3. Manual …………………………………………………………………………... 5 3.1.

  • Page 3: General Information On Electrostatics

    Manual EFM 022 1. General Information on Electrostatics Nowadays ESD is a problem at many workstations, because modern microelectronics is easily destroyed by the sequels of ESD. Other branches of industry like e.g. telecommunications, plastics, and explosive material industry are also heavily affected by ESD.

  • Page 4: Specifications

    Manual EFM 022 2.1. Specifications Dimensions(L x W x H): Approx. 70mm x 122mm x 26mm Weight: Approx. 130g Calibration in parallel plate capacitor: 200mm x 200mm, distance 20mm Calibration accuracy: <5% Battery: 9V alkaline or NiMH battery Operating time: Approx.

  • Page 5: Manual

    Manual EFM 022 3. Manual 3.1. Measuring Principle The electrostatic field meter is a parametric amplifier. The electric field influences a current proportional to the electrostatic field. The current is amplified and measured with a selective amplifier. No energy is taken from the field over time means.

  • Page 6: Measurement Ranges

    Manual EFM 022 3.6. Measurement Ranges After switching the device on the distance selected distance is 2cm. If you want to measure with that distance you just have to place the device 2cm in front of the object to be measured. For most cases this distance is ideal because charges up to 16kV can be measured (see specifications).

  • Page 7: Spacers

    Manual EFM 022 3.8. Spacers The shipment includes 2 spacers for the measurement distance 2cm. Those can be screwed in the front plate. 3.9. Display The display is a double-spaced alphanumeric LCD display with 12 digits in each row (2 x 12). In the upper line the selected distance is displayed in cm. In the bottom line the measured charge is displayed in Volt from 999V on the display changes to kV display.

  • Page 8: Maintenance

    Manual EFM 022 4. Maintenance The modulator system or parts of it must not be touched. Those parts have to be protected of dust, isolating impurity layers, color or paint haze and condensate. If required the modulator system can be cleaned with ethyl alcohol and a lint-free cotton cloth.

  • Page 9: Guarantee Items

    Manual EFM 022 4.4. Guarantee Items We provide a 12 month guarantee in case of proper application according to the manual. Excluded of the guarantee are: The battery resp. the accumulator, damage by electric shock, wrong grounding and mechanical damage of the device. The guarantee expires if the device was opened.

  • Page 10: Scope Of Delivery

    Manual EFM 022 5. Scope of Delivery The basic equipment of the electrostatic field meter includes the following components: l Soft bag l Electrostatic field meter l 9V alkaline battery l Grounding cable with alligator clip l Manual l Certificate of calibration...

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