静电测试仪资料

静电测试仪资料 ELEKTROFELDMETER SYSTEM PROF. DR. ING. HANS KLEINWÄCHTER ELECTROSTATIC FIELD METER . Type EFM 022 Small hand-held Electro-Fieldmeter with digital display designed to measure electrostatic voltage potentials (with pre-selected distance) according the fieldmill influence principal. Forschungs-. Entwlcklungs-. Produktlons-u. Vertrlebsges.m.b.H 1 1 General information of the principle of electrostatics Today Electrostatical discharging is a 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. The loss in manufacturing time as well as high financial damage and the affection of the health of persons may be cased by ESD (electrostatic discharge). It is possible that electrical charges of over 10.000 V can build up on human clothes, materials and equipment. Damage on electronic components may already occur with a charge of less as 100 V and charges of 3.000 V are able to flash and may be the result of explosion in hazardous areas. Trough friction and separation of different materials, called - Tribo Electricity - ( it stays for the Greek word tribeia which means friction ) will be generated. The cause is a transfer of electrons between the two materials. Since the charge of electrons is negative the material 2 depleting electrons has a positive charge, compare the material enhances electrons shows a negative charge. There are different ways to prevent or divert electrical charges. However to find a useful and effective way, first the source and the charge of the electrostatic field has to be located and the polarity and strength will be measured. To do so as well as check any chosen steps against electrostatic charge or to control desire charge our Electro - Fieldmeter is recommended. Technical Data Description The unit is housed into an EMV-plastic enclosure . The Influence Measuring Electrode is star shaped. In front to it in a small distance apart a rotating grounded modulation propeller wheel with the them shape is located. The Influence Electrode is jacket by a ring electrode system used also as mechanical shield for the propeller wheel and the sensor - plate. The measurement display is located on top of the unit. It is an 2x12 digit alphanumeric LC - display. The unit consists of a built in microprocessor for the 3 following tasks as: ? it considers automatically the measured field strength (V/m) and the pre-selected distance (cm) to calculate the voltage potential (Volt) ? single push - button control ? permanent Battery – voltage - control with automatic switch off ? CPS – mode Dimensions: ca. 70 x 122 x 26mm L x B x H Weight: ca. 130 gr. Balance in the plate condenser: distance 20mm Adjustment error: Battery: 9V alkaline battery or NiMH - accu Operating time: app. 10 hours with Alkaline Battery 2 Messure Distance Distance 1 cm 0.......8 kV max. 1 V (Resolution) Distance 2 cm 0.......16 kV max. 2 V (Resolution) Distance 5 cm 0.......40 kV max. 10 V (Resolution) Distance 10 cm 0.......80 kV max. 10 V (Resolution) Distance 20 cm 0.......160 kV max. 20 V (Resolution) 4 Operation Instruction The Electro-Fieldmeter is working with a parametric amplifier. The charge, caused by electrostatic induction, is converted to an alternating current proportional to the field strength. An selective working amplifier measures the current without loss in relation to the field strength. Detection and control of electrostatic fields or charges. Measuring: electric field strength electric charges, electrostatic charges, extremely high-resistent voltage sources. on 1 x press shortly „function/on“ hold 1 x press shortly „function/on“ to activate or deactivate distance 1 x press and hold „function/on“ until „change cm“ appears 1 x press shortly „function/on“ to select the distance or switching in CPS – Mode wait for app. 2 sec to take over new function off 2 x press shortly „function/on“ button Press the „function/on“-key to switch on the unit. Remove 5 the protection cup from the modulator ! Press the „function/on“-key twice in short intervals to switch the unit off. The unit will switch off automatically when the „function/on“-key was not used for about 3,5 minutes. The unit has a hold-function keeping the measured value stored on the display . Press the „function/on“-key once shortly to activate the hold function - „hold“ will appear then in the first row of the display, while the stored value is shown in the second row. To exit the hold-function, press the „function/on“- key once again shortly and the actual measurement value will appear on the display. 3 The distance of 2cm always is indicated when switching – on the instrument. If this distance is used, the unit has to be positioned in the distance of 2cm monitoring the object. This distance is ideal in most cases, as voltage levels up to 16 kV could be measured (please note Technical Data). The distance should be increased, if the object is high charged or when the object 6 has a rough surface. The lowest measurement distance of 1cm should be selected, when low charges are present and the surface of the object has a smooth surface. Press and hold the „function/on“-key (approximately 2 sec.) until „change distance“ will appear in the second line. The pre-selected distance in cm will be displayed in the first line. Press the „function/on“-key shortly to change the distance. With each short press of the „function/on“-key the proposed distance will appear as follows: 2cm => 5cm => 10cm => 20cm =>cps - mode => 1cm ... When the right distance is shown in the display, please wait (do not press the „function/on“- key) until the actual measurement value will appear in the second line. The new selected distance is now also shown in the first line. Please consider this selected distance for the following measurements. The distance will be measured from the electrode positioned 6.4mm apart from the housing on the modulator side. It is more practical to add 6.4 mm to any selected distance starting from the front - plate of the unit. Please note: the distance will change back to 2cm after 7 each switching off and on again ! With any equipment you will get 2 distance supports. The distance spacers can be screwed into the front - plate at the modulator side, which will always provide the right measurement distance for the standard setting of „distance = 2 cm“ The alphanumeric Liquid Crystal Display (LCD) consists of 2 lines for 12 digits each. The measurement distance in cm will be shown in the first line, while the voltage reading in volts is displayed in the second line. When the level of 999 volts is reached, the display will switch automatically into the kV-mode. The display of the voltage reading appears always in 3 digits, such as: 578 V 3,85 kV 24.0 kV and 274 kV. Select a greater distance if „overflow !“ appears on the screen ! The EFM 022 has a permanent battery-voltage control. If the battery voltage is less than 7,6 V „Low Battery“ appears in the first line of the LCD and the 9V block-battery or accu 8 has to be replaced! If the battery voltage will become less than 7,1 V, then „auto off“ will appear for approximately 2 sec in the second line and the unit will switch off to avoid a total discharge and acid leakage. Note: Please use Alkaline or rechargeable - NiMH 9V - batteries only! If rechargeable batteries are preferred, please use a suitable battery - charger for recharging the batteries separately. Please note the manufacturer`s advises ! 4 The unit has to be connected to ground for correct measurements of voltage levels and polarity. Use the grounding socket (4) of the unit for the connection to earth potential. The unit consists of a conductive housing, thus allow the use without grounding cable if the operator is on earth potential (e.g. wears conductive shoes, uses a wrist strap or touches grounded parts). Amount of Shipment The basic shipment contains the following parts: A Soft bag 9 B Electro Fieldmeter C 9V Alkaline - Battery D Ground Connector cable with clamp E Instruction Manual F Calibration Certificate ZBS-OPTIONAL ! ? Transport Case with antistatic Foam Interior ? rechargeable 9V - Battery ? Battery Charger ? Coiled Grounding Cord ? Crocodile Clip Charge Plate Kit CPS 022 With the Charge Plate Kit becomes from the EFM 022 a charge plate monitor, to the supervision of air ionization appliances after the EN 100015 as well as EOS/ESD S.3.1 The charge electrode corresponds to the norms from the capacity (20pF), but not from the dimensions. For directly measure conform to the norms, use our CPM 374. With the CPS 022, however reproducible measurements can be performed. It becomes the decay-time from + 1.000V…. + 100V or.- 1.000V....- 100V with an integrated start - stop - timer. The charge takes place over an external HV- Converter. In the 10 CPS-Mode voltages up to max. 2kV will be displayed. Parts of delivery: ? HV - Converter ? 3 pce. rechargeable 9V Battery ? Battery - Charger ? CPS - Socket ? Plate condenser ? Grounding cables 1,5m and 1m ? Crocodile Clip ? Transportation suitcases 5 CPS 022 Kit Operation Instruction The EFM 022 from software version V4.0 is prepared for using the Charge – Plate - Monitor. Some older versions can be updated by the manufacturer ? Bring the CPS – Socket in position and put in the EFM 022 vertically ? Screw the ground plate on the EFM 022 ? Press the field-plate onto the bolts in touch to the ground-plate ? Connect ground between the HV - Converter and the CPS – Socket ? Connect the CPS – Socket to ground 11 ? Switch on the EFM 022 and wait until „Dist.= 2cm” and a measure value is displayed ? Press and hold the „function/on“-key (approximately 2 sec.) until „change cm“ will appear in the second line. The pre-selected distance in cm will be displayed in the first line. Press the „function/on“-key shortly to change the measurement distance, until “CPS - Mode” is displayed. With each short press of the „function/on“-key the proposed distance will appear as follows: 5cm => 10cm => 20cm => CPS - Mode ? please wait (do not press the „function/on“- key) until the cps - mode will appear in the second line. ? The unit is now ready to work as charge plate ? Through pressing of the button at the HV - Converter, a high voltage > ?1100V becomes at the two contacts of the appliance generates ? Through touching of the upper field plate with the corresponding contact (+ or -) the ? HV-Converter is loaded the plate. ( see picture ) ? The unit recognizes the correct polarity automatically 12 and now is ready for the measurement ? The internal timer is started with achievement of ? 1000V on the field plate ? The internal timer now counts upward in 0,1sec steps, as far as on the field plate ? 100V is reached ? In the upper line now it will displayed the pos. or neg. discharge time ? In the lower line, the current voltage is shown on the field plate, until the “function/on” button is pressed. Then, the voltage measured at this time on the upper plate is shown as offset voltage in the lower line ? Pressing the function/on“ – key again will reset the display, and it can be started a new measurement Maintenance Do not touch the modulator system to prevent mechanical damages. Avoid any insulating build up as e.g. dust, paint or varnish dust, condensed water or similar influence. If it is necessary the modulator system may be cleaned with alcohol and a soft fuzzy-free cloth. 13 6 The 9V block-battery has to be replaced when “Low Battery” appears at the display. Please switch the unit off before open the battery compartment. Take out the battery and remove the connector clip. Put the connector clip on the new battery and put it into the compartment. Close the compartment. A zero adjustment is normally not needed. In case, that the unit does not indicate U=00X while the modulator system is shielded (e.g. grounded person covers the modulator system with one hand), use the trimmer (6) for zero adjustment. The last digit can be ignored as the caused measurement failure is much lower than the specified tolerance. By correct operation and in accordance to the instruction manual we allow a 24 month warranty . The warranty does not include: The Battery / NiMH – accu, damages by electrical discharge, incorrect grounding and mechanical damage of the Field Meter. If you open the unit, you will lose the Guaranty ! 14 Warning Notice Ö It is not allowed to open the Electrofieldmeter. If you open it, you lost the guaranty. Ö The Electrofieldmeter is not approved for measurements in explosion hazard areas. Ö In the event of very high electrostatic charges, the Electrofieldmeter must be grounded. Look for an adequate distance to the test object. Ö Avoid spark discharges onto the modulator system. Ö The use of the unit in power plants is not permitted. Ö The Electro-Fieldmeter is not equipped to detect alternating fields > 1Hz. Calibration It is advisable to recalibrate the Electro-Fieldmeter once a year. 7 1. Modulatorsystem 2. EMV-Plastic Enclosure 3. Function Key 4. Grounding Socket 5. Battery Compartment 6. Zero 15 Adjustment Trimmer 7. Protection Cup remove for measuring !! 8. Distance Spacer 2cm (screwed) 8 Legend Forschungs-. Entwlcklungs-. Produktlons-u. Vertrlebsges.m.b.H KONFORMITÄTSERKLÄRUNG Die Firma Kleinwächter GmbH Krummattstr. 9 79688 Hausen i.W. erklärt in alleiniger Verantwortung, dass das Produkt Elektrofeldmeter EFM 022 Messgeräte zur Messung des elektrischen Gleichspannungsfeldes auf die sich diese Erklärung bezieht, die Forderung der EWG-Richtlinie über die elektromagnetische Verträglichkeit Richtlinie des Rates vom 3.5.1989 (89/336) Stand: Juli 1993 16 erfüllt, insbesondere der Normen EN 61010 „Safety“ EN 55011 Gruppe 1, Klasse B EN 50082-2/92 für ISM-Geräte. Die Firma Kleinwächter GmbH hält folgende technischen Dokumentationen zur Einsicht bereit ? vorschriftsmäßige Bedienungsanleitung ? Baupläne ? technische Dokumentationen Hausen, den 09.01.2001 Jürgen Brunner techn. Geschäftsführer 9 百度搜索“就爱阅读”,专业资料,生活学习,尽在就爱阅读网 92to.com,您的在线图 书 关于书的成语关于读书的排比句社区图书漂流公约怎么写关于读书的小报汉书pdf 馆 17