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Summary of Contents for Kleinwächter EFM 022
- Page 1 MANUAL Electrostatic Field Meter EFM 022 (V 5.3) System Prof. Dr.-Ing. Hans Kleinwächter...
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Page 2: Table Of Contents
Grounding ..................................9 Maintenance ..................................9 Zero Point ..................................10 Guarantee Items ................................10 Battery Replacement ..............................10 Waste disposal ................................10 Scope of Delivery (only EFM 022 ZBS) ......................11 Optionally accessories : ..............................11 Warning Notices ................................12 Calibration..................................12... -
Page 3: General Information On Electrostatics
General information on electrostatics 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-, plas- tics-, and explosive material industry are also heavily affected by ESD. ESD causes losses of time as well as high financial losses and can endanger the human health. -
Page 4: Specifications
Manual EFM 022 V5.3 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% Digital/Analogue Converter DAC Resolution 10Bit Battery:... -
Page 5: Caption
Caption Caption Cover cap 5 Spacer Modulator system 6 Zero point trimmer Button «function/on» 7 Alphanumeric LCD display Grounding jack 8 Battery case (on the back) -
Page 6: Operating Instructions
Manual EFM 022 V5.3 Operating instructions 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 7: Measurement Ranges
Operating instructions Measurement ranges After switching the device on the distance selected is at 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 20kV can be measured (see specifications). -
Page 8: Changing The Measurement Distance
Manual EFM 022 V5.3 Changing the measurement distance Press «function/on» until the lower line shows „change distance“ (approx. 2 sec). In the upper line the current distance is shown in cm. By pressing «function/on» the distance can be changed in the following order:... -
Page 9: Display
Maintenance 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. The displayed value is always triple-digit: Examples: 578V... -
Page 10: Zero Point
Manual EFM 022 V5.3 Zero Point Under normal circumstances a zero point adjustment is not necessary. If the device does not show U=000V while the modulator system is screened (e.g. mounted cover cap) the zero point can be adjusted using the trimmer (6) on the right side of the device. The last digit of the display may be ignored as that error is smaller than the admissible tolerance. -
Page 11: Scope Of Delivery (Only Efm 022 Zbs)
It has the same function as the EFM 022 with an additional analoque interface ±1V It is possible to upgrade an EFM 022 to an EFM 023 ! Together with our USB – Analoque/Digital Converter UAC 110 you can connect the instrument to a personal computer to save, change and display the results. -
Page 12: Warning Notices
Manual EFM 022 V5.3 MK 023 -measuring head- VMS 022 – Volt Meter Set- with MK 023, hand electrode up to ±4kV and silicon cable Head to measure DC-Voltage with an to do a walking test Input impedance from 10 Warning Notices ...
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