Operating Instructions Series R44LS Discharge Bars
Contents
1. Operating Instructions gt N N Q Q Series R44LS Discharge Bars for AC Voltage Operation BA e 2003 0302 ar 2 BA e 2003 0302_R44LS BA e 2003 0302_R44LS List of contents 10 Outline of Series R44LS discharge bar for AC voltage operation 4 Safety ant Oe ee te Cate nas 7 PIOPCMUSE Boe ed ae ree ee Are BE 7 Identification of risks and hazards 7 Work and operational safety 8 Contact pProt ction seat 9 Technical advance naa a a een ea see os 9 Installations and 10 Length of the high voltage cable 10 Assembly of the discharge bar 10 Distance between discharge bar and material surface 12 Impact of temperature 12 Connecting oil and waterfree compressed air supply 13 Position of the air 14 Operation oa ot eee poo et ei een 15 Selecting the operating voltage 15 FUNCIONO Soa Sh eee ON Waa eee T 15 Maintenance 16 Troubleshooting 2 22 ii 17 Warranty 2 cmos Baer ie eee eet Geet 18 Technical specifications 44 19 Dimensions sa 20 Spare parts and accessor2. blast air The optimum discharging effect is achieved in combination with Eltex high voltage supply units with 5 kV AC output voltage 6 BA e 2003 0302_R44LS 2 Safety The Series R44LS discharge bars have been designed built and tested using state of the art engineering and they have left the factory in a tech nically and operationally safe condition If used improperly the bars may nevertheless be hazardous to personnel and may cause injury or damage Read the operating instructions carefully and observe the safety instruc tions Warning Do not touch the emission tips of the discharge bar if the supply voltage of the power supply is switched on Before cleaning or servicing the bar always disconnect the bar from the supply voltage of the power supply unit The manufacturers will not assume any liability and warranty if the bar is used improperly or used outside the intended purpose 2 1 Proper use The Series R44LS discharge bars may only be used for eliminating static charges on material surfaces Other uses are not permitted The R44LS discharge bars must be operated only in connection with the dedicated Eltex high voltage supply units with 5 kV AC output voltage This will ensure the proper adaptation to the required operating specifica tions of the various active bar lengths Safe operation of the electrode bars is guaranteed only when using the Eltex high voltage supply units with 5 kV AC output voltage Modificat
3. extreme care e Mechanical or electrical modifications of the discharge bars are not per mitted Shortening the screened high voltage cable on the connecting side to the power supply unit is permissible Lengthening the cable is only permitted via a suitable terminal box an original high voltage cable and suitable cable glands e The discharge bars must be repaired serviced and tested by qualified personnel only e The operation of the electrodes can generate ozone The ozone con centration levels developing near the electrodes depend on many dif ferent factors such as site of installation electrode stream and voltage air circulation etc and can therefore not be specified in general terms If the maximum allowable concentration MAC of ozone must be observed at the site of installation of the electrode the concentration must be measured on site gt 8 BA e 2003 0302_R44LS BA e 2003 0302_R44LS 2 4 Contact protection As the installation site or eventual location of the discharge bars is outside the control of Eltex a contact protection screen may have to be provided as specified in the regulations of the employers liability insurance associ ations e g VBG 4 in Germany 2 5 Technical advance The manufacturer reserves the right to make changes to the technical specifications without prior notice in order to adapt the units to state of the art engineering Eltex will provide the latest information on any chang
4. 0 500 500 2 The air connections also be led outside sideways 1 4 BA e 2003 0302_R44LS BA e 2003 0302_R44LS 4 Operation 4 1 Selecting the operating voltage ES50 ES51 Use the toggle switch to switch on the power supply In the ON position the switch lights up green High voltage is now supplied to the discharge bars The output voltage is now a constant 5 kV AC ES31 If the ES31 power supply is equipped with a potentiometer for setting the operating voltage version ES31 VO and ES31 PO adjust the potentiom eter with the power supply switched on until the green signal lamp Oper ating Voltage lights up The discharge bar will now be working with the optimum operating voltage of 5 kV at 50 Hz 4 2 Function control ES50 ES51 In general proper operation is indicated by the illuminated switch in all units ES31 With the ES31 power supply switched on and the discharge bar con nected the signal lamp Operating Voltage ES31 VO and ES31 PO only on the power supply lights up 15 5 Maintenance Warning Before carrying out any repair maintenance or service work on the dis charge bars and the power supply switch off the power supply and dis connect the supply voltage The machine on which the discharge bars are installed must not be in operation Repair and maintenance work must be carried out by qualified personnel only In order to ensure the proper function o
5. ass reinforced polyester GFK UL 94 V 0 epoxy resin with filler or PU with filler steel brackets see Fig 4 EN 50019 Grade A600 60 C EN 50028 DIN 53481 60 C DIN 53482 3x 1015 Q x cm V 0 in compliance with UL 94 1 6 mm or ISO R 1210 5 10 sec 0 80 C 32 176 F only if blast is in operation otherwise 0 60 C 32 140 F max 70 relative no dewing permissible stainless steel encapsulated and electrically isolated low capacitance and non sparking see Fig 7 5 kV AC 50 60 Hz via Eltex power supplies with 5 kV AC output voltage approx 0 055 mA in compliance with EN 60335 Part 1 integrated air profile air outlet apertures 1mm spacing 15 mm air outlet apertures in special appli cations 1 5 mm NW 9 mm hose apparatus air free of oil and water up to 40 meters in max length see Fig 6 max 3 bar 150 600 l min per 1 meter of active bar length at 0 1 1 bar air pressure 19 9 Dimensions Fig 7 Series R44LS discharge bar Z00192y L Airchannel E Electrode EL Installation length AL Active length 15 1995 mm in increments of 15 mm GL Total length 20 BA e 2003 0302_R44LS BA e 2003 0302_R44LS 10 Spare parts and accessories Article Article number Assembly bracket RA44MWS Assembly bracket R44MWM Assembly bracket RA4MWL MCH00011 MCH00002 MCH00009 21 Eltex offices and agencies The addresse
6. discharge bars must be grounded via the machine potential through the metal assembly brackets The size M8 assembly bolts for attaching the discharge bar to the bracket must not exceed 12 mm in length Longer bolts may damage the dis charge bar Discharge bars with a total length gt 1500 mm are equipped on the back with an M8 support plate three M8 support plates are glued to bars with lengths gt 3000 mm During installation the discharge bars must be sup ported with these support plates to prevent the bars from sagging Failure to observe this mode of attachment may result in mechanical dam age to the bars Damage of this description is not covered by the warranty 1 0 BA e 2003 0302_R44LS Caution A Depending on site of use or location the discharge bar must be protected against inadvertent contact by personnel Contact protection as specified in the regulations of the employers liability insurance associations Please observe all national regulations according this item The contact protection device should be made of insulating material such as GRP or similar material Contact protection devices made of conduc tive material must be grounded Fig 3 Assembly of the discharge bar with steel bracket 5 Airchannel Electrode Cylinder bolt DIN 912 M8x12 St Cylinder bolt DIN 84 M8x12 St Hexagonal nut DIN 933 M8x12 St Spring washer DIN 127 A8 St Washer DIN 125 A 8 4 St Attachment bracket R44 with 2 x longit
7. es or modifications in the operating instructions on request Fig 2 Load capacity of the power supply units as factor of active bar length and length of the high voltage cable 3 Installations and assembly 3 1 Length of the high voltage cable The high voltage cable is supplied in the following standard lengths 2 5 5 7 5 and 10 meters preassembled Special lengths are available on request The total length of the discharge bar and of the high voltage cable is lim ited as the transformer of the power supply unit is under capacitance load by the cable length The maximum load capacity is therefore defined as a function of active bar length and the length of the high voltage cable The relationship is shown in Fig 2 lengths of active bars m lengths of active bars m lengths of active bars m A A ES31 ES50 ES51 15 751 15 12 104 permissible ermissible 10 permissible range 5 0 a ange ee range 8 5 5 2 2 57 2 S Be 5 10 20 30 40 50 5 10 15 20 25 10 20 30 40 50 lengths of h v cable m lengths of h v cable m lengths of h v cable m N 3 2 Assembly of the discharge bar The Series R44LS discharge bars must be connected to the machine via a metal bolted joint For more convenient installation we recommend using the assembly and installation material supplied by Eltex see Fig 4 The assembly steps are shown in Fig 3 Caution The
8. f the discharge bars clean the bars at least once per week using compressed air free of oil and water 6 bar standard compressed air pistol and a non metal brush Dirt deposits such as grease ink glue paper dust etc must be removed using a suitable solvent e g cleaning gasoline Do not soak discharge bars and high voltage cable in solvent When cleaning the discharge bars switch on the compressed air supply 1 2 bar to prevent the air outlet nozzles from clogging up Allow solvent to evaporate before resuming operations Caution Do not damage the emission tips of the discharge bars 1 6 BA e 2003 0302_R44LS 6 Troubleshooting Warning Electric shock hazard Before carrying out any repair maintenance or service work disconnect the supply voltage to the power supply No high voltage must be applied on the discharge bars Repair and maintenance work must be carried out by qualified personnel only Fault Cause Remedy Effectiveness Dirt settled on bars Use compressed air and brush to of application clean bar Dirt deposits such as declines grease ink oil etc mast be removed using a suitable solvent e g cleaning gasoline Caution Do not soak discharge bars in sol vent Allow solvent to evaporate before resuming operations Operating Defective discharge If more than one discharge bar is voltage lamp bar Check bar for connected to the power supply fails to light up any defects which d
9. ies 21 Fig 1 Series R44LS discharge bar 1 Outline of Series R44LS discharge bar for AC voltage operation L Airchannel E Electrode EL Installation length AL Active length GL Total length single row discharge bar air knife with air circulation of gas discharge emission tip spacing 15 mm active lengths 15 1995 mm in increments of 15 mm Z00192y BA e 2003 0302_R44LS BA e 2003 0302_R44LS 5 Dear customer The Series R44LS discharge bars have been designed for the active removal of disruptive static charges during production processes The bars are operated with an alternating voltage of 4 8 5 5 kV at 50 60 Hz and are suitable for eliminating static charges on surfaces with medium to high speeds Due to the differences in the surface charge profiles of the various materi als charges of both polarities are supplied by the discharge bars The geometric configuration of the corona segment guarantees an ultimate discharge effect The R44LS discharging bars operate with air support and generate an adequate discharging effect even at larger distance They improve the sheet separation from the pile to the copy stream hold the copy stream in place at the 90 deviation station and help to improve pile formation The air flow ventilation on the inside of the bar allows the unit to be used under high ambient temperatures of max 80 with thermal screening and
10. ions and changes to the discharge bars are not permitted Use only original Eltex spare parts and accessories 2 2 Identification of risks and hazards Possible risks and hazards resulting from the use of the discharging bars are referred to in these operating instructions by the following symbols Warning This symbol appearing in the operating instructions refers to operations which if carried out improperly may result in serious personal injuries BA e 2003 0302_R44LS 7 Caution This symbol appearing in the operating instructions refers to operations which if carried out improperly may result in damage to property 2 3 Work and operational safety Warning Carefully observe the following notes e Check the discharge bars and the high voltage cables at regular inter vals for any damage Any damaged components must be repaired or replaced before continuing to operate the bar or the appropriate bar or cable must be disabled Make sure that the electrode bars are clean at all times Before carrying out repairs cleaning or maintenance work switch off the power supply unit and disconnect the supply voltage e Do not touch the emission tips if the high voltage supply is connected Reflex responses to electrical irritation may increase the risk of second ary accidents especially in the vicinity of unguarded rotating assem blies Persons with cardiac pacemakers are always at risk from high voltage and should take
11. ir blast is activated only for instance when the tool opens to discharge the moulding 1 2 BA e 2003 0302_R44LS Fig 5 Installation of the compressed air supply BA e 2003 0302_R44LS 3 5 Connecting oil and waterfree compressed air supply The number of air connections depends on the length of the discharge bar see Fig 5 An internal hose diameter of 9 mm NW 9 is required to con nect the air hose to the air hose joint The operating pressure must not exceed 3 bar and must be measured near the air distributor The distribu tor crosssection must be dimensioned to match the number of hose con nections or in compliance with the consumption volume Z00196y Pressure gauge Pressure source NW 20 hose Throttle valve Rota flowmeter R44LS discharge bar NW 9 hose e g 4 x 2 5 m Distributor Manometer OANDAAWN Fig 5 shows the installation diagram for the air supply The air distributor is not included with the delivery Caution If the discharge bar is fitted with several air connections all hoses from the distributor to the connecting points must have the same length identi cal pressure conditions 3 6 Position of the air connections Fig 6 Dimensions and position of the air connections as factor of total length GL GL A Number of air connections mm mm mm GL lt 750 GL 2 1 750 lt GL lt 1500 125 500 250 2 1500 lt GL lt 2065 25
12. isconnect one after the other to may be caused by localize the defective bar creep currents Replace defective bar Refer to the Power Supplies Operating Instructions for further malfunc tions BA e 2003 0302_R44LS 1 7 7 Warranty The units are warranted for a period of 12 months provided that the operating conditions have been maintained that the units have not been tempered with and that the units show no mechanical damage The warranty applies only if the operating and assembly instructions specified by Eltex have been observed The warranty period begins on the date of delivery In the event of defects occurring during the warranty period the units or defective components will be repaired at Eltex Defective components will be replaced and installed free of charge If repairs are required at the customer s premises the costs for sending a technician travel travel time expenses will be charged to the customer 1 8 BA e 2003 0302_R44LS Ce BA e 2003 0302_R44LS 8 Technical specifications R44LS Electrode element Encapsulation compound Assembly material Creepage resistance Disruptive strength Specific volume resistance Flammability Operating ambient temperature Ambient humidity Emission tips Dimensions Operating voltage High voltage supply Short circuit current per tip Contact protection Air supply Air connections Air pressure Air consumption fibre gl
13. s of all Eltex agencies can be found on our website at www eltex com Eltex Elektrostatik Gesellschaft mbH Blauenstra e 67 D 79576 Weil am Rhein Phone 49 0 76 21 7905 0 Fax 49 0 76 21 79 05 310 eMail info eltex com Internet www eltex com
14. udinal holes Max torque 4 NM secure with Loctite 243 Max screw in depth 4 5 mm BA e 2003 0302_R44LS 1 1 Fig 4 Attachment accessories Z00195y R44MWS R44MWM R44MWL R44MWS Assembly bracket small with a total length of below 1500 mm R44MWM Assembly bracket medium with a total length of below 1500 mm R44MWL Assembly bracket large with a total length of above 1500 mm 3 3 Distance between discharge bar and material surface The distance between the discharge bar and the material surface must be selected between 15 and 30 mm Discharge bars with air support are used in cases where static charges impair the separation of piles to feed the copy stream or vice versa The distance of the discharge bar from the edge of the pile is 5 20 mm in this application The distance may be 220 mm in any other application 3 4 Impact of temperature radiation The discharge bar must not be exposed to direct heat radiation which might lead to an excess of the maximum rated operating temperature of 80 C In the event of heat exposure caused by heated moulds and blow ing tools a temperature shield e g a metal plate approx 3 mm thickness or a special plastic material is required The metal plate must not be allowed to rest on the discharge bar and must be grounded Discharge bars with air support may also be operated with intermittent air blasts to prevent the tools from cooling down The a
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