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Summary of Contents for Kleinwächter EFM 113B
- Page 1 Manual System Prof. Dr.-Ing. Hans Kleinwächter Electro field meter EFM 113B Small stationary static-field meter with high sensitivity to measure static DC-fields and electrostatic charge according the field mill-influenz-principle. Output: analogue current-signal ± 1mA...
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Page 2: Table Of Contents
Manual EFM 113B Contents General information of the principle of electrostatics ..................3 What is the result of electrostatic charge ........................ 3 Description ................................... 3 Technical Data ..................................4 Legend ....................................4 Operating instructions ..............................5 Measurement method ..............................5 Field of application ............................... -
Page 3: General Information Of The Principle Of Electrostatics
General information of the principle of electrostatics General information of the principle of electrostatics Electrostatic discharging is a today problem on many working places with the use of modern micro-electronics as e.g. Microchips and there sensibility against it. There is also a very strong danger for industrial branches as e.g. Telecommunication- , Plastics- , and manufactures of explosives. -
Page 4: Technical Data
Manual EFM 113B Technical Data Dimension (L x B x H): app. D36mm x 120mm Weight: app. 180g Calibration in a plate capacitor: 200mm x 200mm, Distance 25mm Ranges: 5kV/m, 20kV/m, 50kV/m und 200kV/m Tolerance: < 5% Power supply: 9-15V DC / ca. 60mA Operating-time : By 8 hours a day min. -
Page 5: Operating Instructions
Operating instructions Operating instructions Measurement method The static-field meter has a parametric amplifier. The electrical field causes an alternated current proportional to the field strength. These current can be measured with a selective amplifier, without taking away energy of the electrical field. Through using gold-plated influenz-electrodes no galvanic disturbances are induced. -
Page 6: Pinning
Manual EFM 113B Pinning Pin 1 = Range select B Pin 2 = Power supply + 9-15V DC Pin 3 = Ground (GND) Pin 4 = Range select A Pin 5 = Current output ±1mA The maximum cable length (0,14 mm²) is 50m. -
Page 7: Grounding
Grounding Grounding The appliance must be grounded to get real measuring results. You can connect ground by the access line (pin3) or over the optional aluminum clamp Maintenance Don´t touch the modulator system ! Time by time the modulator-system needs to be cleaned and a new offset – adjustment with shielded field-plate is necessary. -
Page 8: Calibration
Manual EFM 113B Calibration We recommend a new calibration every year. Cable assignment (Standard cable) color Function white Range select B brown Power supply + 9-15V DC black Ground (GND) blue Range select A grey Output current ± 1mA © Kleinwaechter GmbH 2011...
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