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Preva Installation Manual

1. FIG 7C 8 Connect power cord 121 Appendix A Preva 8A Remove EMI shield See FIG 8A 8B Attach to power cord to the Terminal Block as detailed below See Fig 8B Black Line White Neutral Green Ground place ground underneath the EMI shield Lock down with Allen screw NOTE Take care not to pinch ground wire with EMI Shield EMI SHIELD 9 Locate the mobile unit post located in the top layer of parts removed in step 3 and insert into the mobile base as shown in Fig 9 NOTE Take care not to pinch the Cat 5 cable or the tube head connectors See FIG 9 FIG 9 122 Appendix A Preva 10 In the Kit Mobile Stand package Part 30 A2098 See fig 10A Locate and insert the bolt used to secure the post to the mobile base Requires 10mm Allen wrench See Fig 10B Kit Mobile Stand 30 A2098 On Part No FIG 10A FIG 10B Description 11 Back out the Allen bolts used to secure the articulated arm to the post QTY 2 This allows the articulating arm to be inserted completely into post See Fig 12 Fig 12 12 Locate the Articulated Arm Tube head assembly Remove the red transportation label Pull back the plastic packaging to expose shaft and remove paper tube protecting cables and connectors 123 Appendix A Preva 13 Lift the arm tube head carefully and guide the cables through the top off the post Carefully insert the articulated arm and take
2. progeny A Midmark Company Preva Dental X Ray System Installation and Service Manual 00 02 1577 Rev AC ECN P3321 Attention The equipment must only be installed and operated in accordance with the safety procedures and operating instructions given in this manual and in the User Manual for the purposes and applications for which it was designed Modifications and or additions to the equipment may only be carried out by Progeny A Midmark Company or by third parties expressly authorized by Progeny Dental to do so Such changes must comply with legal requirements as well as with the generally accepted technical rules It is the responsibility of the user to ensure that existing legal regulations regarding installation of the equipment with respect to the building are observed X RAY PROTECTION X ray equipment may cause injury if used improperly The instructions contained in this manual must be read and followed when operating the Preva Your Progeny Dental dealer will assist you in placing the Preva in operation The Preva Dental X Ray System provides a high degree of protection from unnecessary x radiation However no practical design can provide complete protection nor prevent operators from exposing themselves or others to unnecessary radiation y progeny A Midmark Company More Than Imaging Excellence Midmark Corporation 6 5 Heathrow Drive Lincolnshire Illinois 60069 U S A Phone 888 924 3800 Fax 847 415 98
3. Mount and 1 Level the Control Unit o 3 4 5 6 7 Preva Open the shipping carton and locate the Control Unit in the first level of the carton Remove the Phillips screw from the front cover of the Control Unit Carefully remove the front cover Place the front cover and the screw in a safe location for later reassembly Select the 3 8 inch 3 inch long lag screws and washers Note For concrete walls the installer must supply the appropriate mounting bolts Put the upper lag screw and washer through the upper mounting hole of the Control Unit Place the Control Unit on the wall and loosely tighten the upper mounting bolt Put the lower lag screw and washer through the lower mounting hole of the Control Unit and loosely tighten Be sure that the power wire extends through the opening at the bottom of the Control Unit Place a level on the Control Unit bearing parallel to the wall as shown in Figure 14 Level the Control Unit Tighten the upper and lower lag screws to 14 to 18 ft Ibs Predrill a hole for a 12 wood screw below the lower lag screw as shown in Figure 14 A Install and tighten the wood screw to prevent the unit from shifting CAUTION Do not over tighten the lag screws Over tightening the lag screws will damage the wooden stud and reduce the 25 holding force Installation Procedures Preva Figure 14 Leveling the Control Unit For 12 Screw Figure 14 A 26 Installation Procedures
4. and the exposure time of one second Make five exposures at this level observing the normal cooling time E ac a Your responsibilities as an installer and service engineer Verification of machine performance after installation must be performed according to the guidelines identified in the System Function Checklist which may be found in the User Manual or the Installation and Service Manual Verification of machine performance after maintenance or repair must be performed according to the guidelines identified in the System Function Checklist and the calibration instructions which may be found in the Installation and Service Manual 51 Maintenance Preva Optional Installation Procedures Installing the Coil cord Hand Switch Option 30 A2040 The Preva Dental X Ray System can be installed with an optional coil cord hand switch 30 A2040 The coil cord hand switch is used to make exposures in addition to or replacing the use of the exposure button Installation of the coil cord hand switch involves connecting the hand switch into the connector on the bottom of the Operator Panel Note The coil cord hand switch is not included with the standard system Jumper If the coil cord hand switch is used it may be required to disable the Exposure Confiauration for Outten on the control panel consult your local laws A jumper must be removed Fels ah Hand on the Operator Panel Board 30 08054 shown in Figure 35 to disable
5. 41 select ADJUST DISPLAY You will see the Display Options menu shown in Figure 42 2 Selecting EXIT returns the display to the Main System Configuration menu Adjusting 1 Select ADJUST CONTRAST from the menu You will see the Progeny logo Contrast 2 Usethe up and down arrows to increase or decrease the contrast between the menu text and the display background 3 Press the right arrow to save your settings Reversing the 1 Select REVERSE IMAGE from the menu The text and display background Image colors will be swapped 2 Press the right arrow to save your settings DISPLAY OPTIONS b REVERSE IMAGE EXIT Figure 42 Display Options Menu 61 System Configuration Preva Changing Pre programmed Exposure Settings The Preva Dental X Ray System allows the operator to increase or decrease image density for all presets for a receptor simultaneously or to change each of the technique factors for a preset individually You can also restore factory default settings For charts of the factory default settings refer to Factory Default Exposure Settings later in this manual Note If the 12 inch cone is going to be used configure the Preva for use with the 12 inch cone before changing pre programmed exposure settings Configuring the Preva for use with the 12 inch cone will reset exposure settings to the default settings used with the 12 inch cone Displaying the 1 From the Main System Configuration menu Figure 41 select CHANGE Cha
6. Control Unit The Horizontal Arm contains an access cover to connect the cable from the Horizontal Arm to the Control Unit The Horizontal Arm is available in four lengths providing reaches of 56 66 76 and 82 inches The Cone establishes the distance from the x ray tube to the patient s skin lt provides positioning assistance and collimates the x ray beam to within a defined circle at its end The Preva is shipped with the standard 8 inch Cone attached to the Tubehead A 12 inch Cone 30 A2200 can be ordered as an option An optional component the remote control switch is used to make exposures in addition to or replacing the use of the exposure button An optional device the mobile unit supports pre programmed technique selections and x ray acquisition See Appendix A for the installation instructions for the mobile unit The Preva Dental X Ray System should only be installed and serviced by approved Progeny dealer personnel Contact Progeny A Midmark Company at 888 924 3800 if you need assistance locating an approved dealer Installation Options CAUTIONS Preva When using lag screws as the method of attachment it is imperative to consider the full scope of the task Several factors must be considered for safe permanent installations Some of the key issues are Lumber commonly used in construction projects can be different from location to location The grade age position and overall condition can vary greatly T
7. connect it to the Operator Panel If the cable is routed on the surface of the wall it should enter the wall mount cover through the notch on the left of the power switch For a parallel connection connect the cable conductors of both cables to terminal block J1 on the PCB of switch enclosures 1 as shown in Figure 38 The 2 indicates that two green wires will join together in terminal 1 of J1 etc For a series connection connect the wires as shown in Figure 39 green 2 C black 2 yellow 2 Optional Installation Procedures Preva Figure 39 Series Switch Configuration 58 11 12 13 2 green 3 red 2 4 7 black 2 5 yellow 2 Make sure the two gray wires from the pushbutton switch are connected to terminals 1 and 2 of J2 Screw the inner section of enclosure 1 to the junction box using the two screws provided If the cable is routed on the surface of the wall make sure it sits in the notch on the bottom of the enclosure Confirm that no wires are being pinched between the junction box and the enclosure Hook the outer section of the enclosure onto the inner section at the top Push the wires all the way into the enclosure and fasten the two pieces at the bottom with the 6 32 x 5 16 inch screw Cut the handset connector from the end of the cable that will connect to switch enclosure 2 and strip about 1 Y2 inch of the white jacket Strip 4 inch of insulation from each of the
8. it must be reinforced In mounting configurations using the dual stud wall plate there are several holes available for incoming line power This is to provide for various locations of existing power boxes when installing as a replacement unit Refer to the mounting template in Figure 8 for hole locations Installation Options Preva Installing the The 4x4 Mount kit 30 A2099 shown in Figure 12 contains the items below 4x4 Mount Power line bracket Power cord cover Left conduit mounting plate Right conduit mounting plate 3 Phillips screws 6 nuts Instructions 1 Using the three Phillips screws secure the power line bracket to the power line cord cover 2 Place the right and left conduit mounting plates on the control 3 Place the assembled power line bracket and cord cover on the two bottom most threaded studs Left Conduit Mounting Plate Right Conduit Mounting Plate Power Line Mounting Bracket Figure 12 3 Screws 4x4 Mount 6 Nuts cssnas ag Cabinet Layout Power Cord Cover TT 18 Installation Options Preva Operator Panel Locations The Operator Panel for the Preva Dental X Ray System can be installed on the Control Unit or mounted remotely on a wall On Control Unit The Operator Panel snaps on to the front of the Control Unit Installation of the Operator Panel on the Control Unit may require the purchase and use of the coil cord hand switch option 30 A2040 Remote Operator The Operator Panel
9. of Symbols on Technical Labels Type B Protection against electric shock IEC 60601 1 1 Consult written instructions in User s Manual ATTENTION RAYONS X OPERATION SEULEMENT PAR DU PERSONNEL AUTORISE VOIR MANUEL DE L OPERATEUR WARNING X RAY THIS X RAY UNIT MAY BE DANGEROUS TO PATIENT AND OPERATOR UNLESS SAFE EXPOSURE FACTORS AND OPERATING INSTRUCTIONS ARE OBSERVED X RAY EMISSION Mains HOT WIRE Mains NEUTRAL WIRE Earth Ground e rmgmp de Obtaining Technical Support Contact Midmark Corporation 675 Heathrow Dr Lincolnshire IL 60069 Phone 888 924 3800 Fax 847 415 9801 techsupport progenydental com Installation Options Preva Installation Options Mounting Configurations Mounting This section gives instructions for installing the Preva Dental X Ray System in three Template mounting configurations Use the mounting template shown in Figure 8 to guide single stud installations Reverse the template for dual stud installations p Pd y PHE WA Figure 8 Mounting Template CAUTION When installing the intraoral system combined with the 82 inch 209 centimeter reach arm wall fabrication and attachments to the building structure must be capable of withstanding a load moment of 920 pounds 418 kilograms CAUTION Lag screws are not intended to be used as an attachment method for metal supports such as those found in center island pass through cabinets Progeny provides machine screws l
10. shown in Figure 33 1 Place the plastic cover from the miscellaneous plastic bag on the end of the Horizontal Arm 2 Install the cable access cover over the Horizontal Arm opening using two Phillips flat head screws Figure 33 Cover Locations 4 Maintenance Preva Operator Panel Using the Operator Panel Power On Settings Exposure Settings Adjusting Exposure Settings Exposure Button and Ready Indicator Figure 34 Preva Operator Panel 48 When the Preva Dental X Ray System is powered on the Operator Panel shown in Figure 34 displays the selections that were in use when the system was last powered off The Operator Panel displays the exposure settings KV mA and seconds for the currently selected tooth image receptor type and patient size Use the Tooth Selection Image Receptor Type and Patient Size buttons to select other exposure settings Preset exposure settings can be adjusted prior to making an exposure Exposure time can be easily changed by simply using the up and down buttons To adjust kV and mA use the right arrow to select the exposure setting to adjust Then use the up and down arrow buttons to adjust the value To save new presets use the System Configuration mode described later in this manual The Exposure button is used to initiate an x ray exposure For a complete exposure the button must be pressed and held until the Radiation Indicator no longer illuminates and the audible
11. the operation of the hand switch Switch 1 Turn the power off 2 Remove the Operator Panel from its mounting on the Control Unit or wall plate 3 Unplug the cable that connects the Operator Panel to the Control Unit 4 With a Phillips screwdriver remove the 4 screws from the back of the Operator Panel Put the screws in a safe location for later use 5 Remove the back cover from the Operator Panel Lift out the Operator Panel Board 30 08054 6 Todisable the use of the Exposure button on the Operator Panel locate point J7 on the Operator Panel Board 30 08054 Then remove the shunt on J7 7 Put the Operator Panel Board 30 08054 back in position 8 Putthe cover on the back of the Control Panel using the 4 screws J7 Exposure Switch Jumper Settings Jumper Position Switch Closure Required for Exposure 1 2 3 4 default Remote Switch or Panel Switch parallel 2 3 Remote Switch and Panel Switch series 3 4 Remote Switch panel switch disabled 02 Optional Installation Procedures Figure 35 Disabling the Use of the Exposure Button Connecting the Coil cord Hand Switch Operator Panel Located on Control Unit Connecting the Coil cord Hand Switch Operator Panel in Remote Location 53 PS COON DO Preva alg LU remi Tov J7 Hemove the screw holding the front cover of the Control Unit in place Place the screw in a safe location for later use Remove the front cover Cut out the notch
12. the Horizontal Arm or bearings in Control Unit 3 Insert the cardboard tube enclosing the wires into the opening in the top of the Control Unit 4 Insert the Horizontal Arm completely into the Control Unit as shown in Figure 17 Ensure that the Horizontal Arm is firmly seated in place 5 Remove the cardboard tube to free the wires Discard the cardboard tube Note Do not make the wire connections at this time 6 Locate the brake assembly bag 30 A2049 As shown in Figure 18 install and loosely tighten the brake assembly in order to put a small amount of drag on the rotation of the Horizontal Arm and to keep the Horizontal Arm from lifting out Figure 17 Installing the Horizontal Arm 3l Installation Procedures Preva Brake Assembly Figure 18 Installing the Brake Assembly 32 Installation Procedures Preva Installing the Articulating Arm and Tubehead Assembly Install the The Tubehead and Articulating Arm are installed as a single unit Articulating Arm 1 Remove the top level packing material from the shipping carton to gain and Tubehead access to the Articulating Arm and Tubehead Assembly Do not remove the cardboard tube enclosing the cable wires but remove the red tag Assembly 2 Remove the Articulating Arm and Tubehead Assembly from the shipping carton CAUTION Do not remove the tie holding the Articulating Arm closed Removing the tie will cause the Articulating Arm to spring open potentially
13. the original tube head to the new tube head The friction ring will either be on the shaft of the original tube head or in the yoke assembly Friction Ring 19 Feed the connectors and ground wires of the pre assembled yoke cable assembly through the opening of the yoke collar Figure 18 20 Insert the tube head in to the yoke collar 94 Maintenance Preva Figure 19 21 Feed the connectors and ground wire of the yoke cable through the first spanner nut Figure 20 22 Manually thread the spanner nut on the tube head shaft Insert a small screwdriver into one of the alignment holes to finish tightening the spanner ring Figure 21 95 Maintenance Preva 96 23 Feed the connectors and ground wire of the yoke cable through the spanner wrench Figure 22 24 Align the three pins on the spanner wrench with the three holes in the spanner nut 25 26 21 28 NOTE Take care not to pinch or cut any of the yoke cable assembly wires Doing so will cause intermittent exposure or no exposures resulting in a second service call Figure 23 Tighten the spanner nut Carefully remove the spanner wrench NOTE Take care not to damage the connectors Repeat steps 21 through 26 for the second spanner nut Feed the black connector through the yoke collar NOTE Take care not to damage the connector Maintenance Preva Figure 24 29 Feed the white connector through the yoke collar NO
14. 0 A2042 30 A2043 gt Two Stud Metal Stud Mounting Plate Support Plate Figure 79 Mounting Plates Conduit Mounting Plate Kit includes 3 Screws and 6 nuts Left H1 I7 M09000 01 nut gt 30 F4021 H1 15 M09016 08 screw Power Cord Cover 30 F4034 Steet B5B 5885891 PA Power Line Bracket Assembly 30 F5013 Conduit Mounting Plate Right Figure 80 30 F4025 4x4 Mount Kit 33 A A3 J TIPPS 30 A2099 i 110 Maintenance Preva 111 Maintenance Preva Operator Panel 30 P0037 Remote Front 30 A2076 30 K0007 Cover Operator Operator Control Panel p Panel Overlay 30 P0029 Wall Mount Cradle 30 P0003 Remote Back Cover 30 08054 Operator Panel PCB Figure 81 Operator Panel Cables Cat 5 50ft E1 13034 Cat 5 25ft E1 13003 Cat 5 6 inch E1 13004 Exposure Cord Pigtail 30 08035 112 Maintenance Preva Control Unit AAA gt 30 F4024 30 08078 F Switch Bracket Power Switch Assy E1 19026 Rocker Switch 30 A2049 30 08041 Brake Assy Power PCB 3 A 30 08072 Grey Cable Assy Progeny Inse Lug 30 08160 Logic PCB 30 P0016 H1 63 M09016 47 V I Screws RES Wall Mount Cover Figure 82 Control Ly Unit 30 P0019 Assembly Control Insert 113 Maintenance Preva Hand Switch 30 A2040 Handswitch Assy E1 19003 Replacement Switch for Handswitch Assy _ t o x 30 P00
15. 01 progenydental com p progeny A Midmark Company Preva Dental X Ray System Installation and Service Manual Midmark Corporation 675 Heathrow Dr Lincolnshire Illinois 60069 U S A Phone 888 924 3800 Fax 847 415 9801 progenydental com Maintenance Preva Table of Contents Table or OODIEF ll cacttontivubh dI pu D SI edad a TM ME Genere MA ION rn oidos oder dus 1 JgeizWleln ajo gb D 1 Gontralmdica lO Siesta dd 1 Product Describa UU UU 1 A e E o M 2 Reach and Coverage it do 4 Environmental AC HOM Sia 9 SUPHO REQUIEM es ao iio 9 El ctrical Reg rementS ERE E NN NUNT MT 10 Compliance with Applicable Standards ooccccocccccccnncoccnccnnncconnncnnnnonnnnonnnnnonnnnnnarnnnnaninnnos 10 Gertitled Componefils ocu este taie aeo exe Pete OR r rte PU a rta alui Siu nune Pe dde bdo Ste Eds 10 EG Declaration or Goblomiby ido dcos dll ed loo eds 11 Authorized HEDFESENIANIV GS io 12 A o A cca ee cheese ctoee 12 Explanation of Symbols on Technical Labels occcoccococnccccncocnconcncncnnnnnonnnnconcnnnnnonnnnnnnos 13 Obtaining Technical SlUDpDOLLsassiact pesos magnet aea eset ae ker euipRRe hue rh ToS e uo puda veu ne tutte tet puces 13 Metala E Beier RT 14 MOUNTING CAN US e eee 14 Operator Panel Location Ss acid 19 ISTMO REO CAUSA e IL 20 Preparing 10 Msta the Prevara HUE 20 Installing the Control Unit on a Single Wood Stud Wall o ooooccconcccccncccccc
16. 12 Inch Cone 30 A2200 esses nennen nennen nnne nnn nnn nnns 59 wy dsicinEeTe aedis A A R 60 System Configuration MOOG oiii pE EOE EEEIEE OE ECESE 60 AdIUSUNO Ine DIS Vatican 61 Changing Pre programmed Exposure Settings ccoonccconccconcncconcncnnnnnoncnonnnnnonacnnonanonncncnnoos 62 Showing Current System ConfiguratiON ccccocccccccnccccnnononononcnonnnnnonnnnonncnnnnnnnnnnnnnonnnonnnnnnnons 63 Changing Ihe GONG Size RC e ae 64 BE uae tenet secs aust E EEE EE E 65 CANNON AUION 2212259035403 932 23 202 2532021050 dta ida bate ouantes lactate 8 state eae tate uaa fic dac N 66 TrOUDIESNOQUN sisi 67 Electrical PerformiaricedsslloS si iii 67 Obtaining Technical Suppl 87 MANTE Cuida 88 Mecn nicalAQUUSTMEN i em 101 Factory Default EXPOSE Seld Sian aaa 107 Armand TUNES Mec 108 FOMZ2O NAAA As 109 Ms A ETE 110 OP od 112 Fo UNE eean ET A aeacms sabes 113 HANO OWIE RENE m m m 114 Spectator tia 115 Preva Dental X Ray SS Mid 115 ASA e o oo M S 118 Assembly Instructions for DC Mobile Unit cooonccnoncnccccnconcncnoncnnoncnnonacononcononenonnnnnnnncnnnos 118 lider d 130 Electronics BIOCK DiagraMN academic a 130 11 Maintenance Preva General Information Indications for Use The Preva Intraoral Dental X Ray is to be used as an extraoral source of x ray in Dental radiography Contraindications None known Product Desc
17. 25 Handswitch Hook Figure 83 O da E1 13005 ER Coil Cord 114 Maintenance Preva Specifications Preva Dental X Ray System The following specifications contain information required per 21 CFR to be provided to the user Line Voltage Line Load Maximum Rated Tube Potential kVp Accuracy Tube Current Exposure Time Timer Accuracy Source to Skin Distance Minimum Half Value Layer Minimum Inherent Filtration Focal Spot Automatic Cooling Time Leakage Technique Factors Target Angle Operating Temperature Storage Temperature Maximum Altitude Cone Focal Length Diameter of X Ray 115 110 230 VAC 10 50 60 Hz Max current 5 amps 70 KVp 5 selectable 4 7 mA 1 mA 20 ms through 2 00 seconds 5 1 ms 8 inch 20 cm 12 inch 30 cm 1 7 mm Aluminum equivalent at 70 kVp 2 mm Aluminum equivalent 70 kVp 0 4 mm IEC 336 15 times the exposure time wait before the next exposure can begin 0 4 mA at 70 kVp 12 5 degrees 50 F 95 F 410 C 35 C 31F 150 F 35 C 466 C 12 000 ft 8 inch 20 cm for bisecting angle technique 12 inch 30 cm for paralleling technique inches 6 9 cm at the end of the Cone opecifications for optional cones differ Specifications Preva 0 50 100 150 200 250 300 TIME s Focal spot 0 4mm LLL L TEE X E rr I A t D 5 5 Ed tt g 4 E TA Ht eke EEE A A Figur
18. 52 Description Articulating Arm and Tubehead Assembly Control Unit Assembly Operator Panel Operator Panel Mounting Cradle Preva Mounting Hardware Kit Preva Plastic Covers Brake Kit Line Cord 16 3 6 Wide 8 Cond RJ45 to RJ45 25 ft 8 Cond RJ45 to RJ45 6 in Preva Documentation Kit Installation Guide Quantity bh ee _ bh b A ee ee bh bh bh Note Shipment Contains One of the Following Extension Arms Per Order Extension Arm Long 1 Extension Arm Short 1 Extension Arm Compact 1 Extension Arm Extra Long 1 8 Cond RJ45 to RJ45 50 ft Doorbell Switch Lighted Doorbell Switch 8 inch Rectangular Cone 8mm Adjustment Wrench Fluorescent Screen 16 inch Mounting Plate FDA Form 2579 Service Kit 4x4 Mount Kit Series Exposure Switch Kit Installation Procedures Preva Installing the Control Unit on a Single Wood Stud Wall Mark and Drill Control Unit Mounting Holes 27 WARNING UNDER NO CIRCUMSTANCES SHOULD THE 82 INCH 208 CM REACH SYSTEM BE ATTACHED TO AWALL IN THE SINGLE STUD CONFIGURATION PLEASE DIRECT ANY QUESTIONS ON THIS MATTER TO THE PROGENY TECHNICAL SUPPORT GROUP WARNING LAG SCREWS ARE NOT INTENDED TO BE USED AS AN ATTACHMENT METHOD FOR METAL SUPPORTS SUCH AS THOSE FOUND IN CENTER ISLAND PASS THROUGH CABINETS PROGENY PROVIDES MACHINE SCREWS LARGE FLAT WASHERS AND NYLOCK NUTS TO USE WHEN FASTENING THE SYSTEM TO METAL SUPPORTS SINGLE STUD INSTALLATION WITH THE INSTALLATION GUIDE 30
19. 73 Horizontal Arm has a reach of 66 inches Catalog P7017 with a 30 A2071 Horizontal Arm has a reach of 76 inches Catalog P7018 with a 30 A2164 Horizontal Arm has a reach of 82 inches The diagrams show Catalog P7018 with a 82 inch reach For Catalog P7017 with a 76 inch reach reduce the dimensions by 8 inches For Catalog P7016 with a 66 inch reach reduce the dimensions by 18 inches For Catalog P7015 reduce the dimensions by 28 inches The 82 inch reach for Catalog P7018 assumes the use of the 8 inch Cone that is supplied with the system If the optional 12 inch Cone 30 A2200 is used the reach is reduced by 4 inches l LW i i i W 22 55 58 CM Min reach with Compact Lr B2 1 2 209 5cm Max reach with Extralong Harizontal Arm T 11 1 28 194 CM m 12 Cone reduces reach by 4 inches 10 46CM Installation Options Preva 33 875 86cm 92 5 235 in 14 Clearance 35 5cm Height bs 44 5 103cm 36 625 40 75 93cm 110cm 12 Cone 8 Cone 39 30cm 20cm 99cm Figure 3 Cabinet Mounting Dimensions 82 reach not recommended for cabinet mount Installation Options Preva 33 7 8 86cm B6 5 8 35cm 220 03 CM i 8 14 2 i 21 5cm L see note 1 385 8 405 B Geter osiem te1 701 24 62 tr t 89cm Otei A 5 8 62 5cm 30cm 20cm 7016 34 5 8 88cm Cone Cone 7017 445 8 114cm 7018 505 8 128 5cm Figure 4 Retrac
20. Allen wrench T handle into the adjustment nut as shown in Figure 74 Turning the wrench clockwise will cause the Control Unit side of the Articulating Arm to lift Turning it counterclockwise will cause it to drop Adjust as necessary until the Control Unit side of the Articulating Arm no longer drifts Replace the plastic covers on the end of the Articulating Arm Maintenance Control Unit Side of Articulating Arm Balance Adjustment Figure 75 Adjusting Articulating Arm Balance 105 QUIN Preva Remove the plastic covers at the top of the Articulating Arm Position the Articulating Arm at a 45 degree angle Place a 9 inch long 8 mm Allen wrench T handle into the adjustment nut inside the Articulating Arm as shown in Figure 75 Turning the wrench clockwise will cause the Control Unit side of the Articulating Arm to lift Turning it counterclockwise will cause it to drop Adjust as necessary until the Control Unit side of the Articulating Arm no longer drifts Replace the plastic covers on top of the Articulating Arm Maintenance Preva Articulating Arm The Preva has four friction adjustment points located at the four pivot points of Friction the Articulating Arm These friction points can be adjusted to reduce or increase the force needed to position the Articulating Arm Adjustments 1 Remove the plastic covers on the Articulating Arm to reveal the adjustment points 2 Using a 2 mm Allen wrench as s
21. Exit option and press Enter This displays the Menu Option screen Figure 41 6 Press the down arrow to highlight the Exit option and press Enter This returns the display to operational mode 7 Press Enter to select the kV to be adjusted 8 Press Enter to highlight the time to be adjusted 9 Observe normal radiation protection procedures in preparation for the following steps 10 Make an exposure 11 Observe the feedback values To adjust kV 1 Press the Up switch to activate the Adjust feature This displays the Current kV Modulation Level screen Press the Up or Down switch while observing the Counts indicator Adjust the Counts in small increments Press Enter to exit and return to operational mode Make an exposure and observe the feedback Repeat steps 1 5 until the desired kV level is reached nce completed it is necessary to deactivate the calibration session Press and hold the Tooth Selector switch and the Patient Size Selector switch for five seconds You will see the Menu Options screen Figure 41 2 Press the down arrow to highlight the CONFIGURE UNIT option and press Enter This displays the Configure Unit menu Figure 44 3 Press the down arrow to highlight the Set Configuration option and press Enter You will see the Set Configuration menu Figure 45 4 Press the down arrow to highlight the Diagnostic Mode Off option and press Enter This displays the Configure Unit screen 5 Press the down ar
22. NY QUESTIONS ON Wood Wall Stud THIS MATTER TO THE PROGENY TECHNICAL SUPPORT Mount GROUP 15 Installation Options Preva Dual Wood When installing the Preva Dental X Ray System on two 16 inch centered wood Stud Wall studs the Control Unit mounts to a wall plate Two Stud Mounting Kit 30 A2042 purchased as an option which mounts to the wood studs as shown in Figure 10 Fasteners are provided with the wall plate In mounting configurations using the dual stud wall plate there are several holes available for incoming line power This is to provide for various locations of existing power boxes when installing as a replacement unit Refer to the reverse side of the mounting template Figure 8 for hole locations Figure 10 Dual Wood Stud Mount SO 16 Installation Options Metal Stud Wall Figure 11 Metal Stud Mount 17 Preva When installing the Preva Dental X Ray System on a metal stud wall the Control Unit mounts to a wall plate Two Stud Mounting Kit 30 A2042 purchased as an option and uses an additional support plate Metal Stud Support Plate Kit 30 A2043 purchased as an option positioned on the back end of the wall See Figure 11 Fasteners are provided with the wall plate and support plate The wall fabrication and attachments to the building structure must be capable of withstanding a load moment of 850 ft lbs 118 kg m If the wall on which the Preva is to be installed does not meet this requirement
23. P0076 Introduction The Installation Guide is intended to be a positive means of locating the center of a 2x4 wooden stud The Installation Guide is a necessary part of the installation and must be used whenever single stud installations are performed The Installation Guide is equipped with side tabs which can be removed if placement of the Guide 1s obstructed by an electrical box During installations which include attachment to a 4x4 wooden stud all of the tabs on one side of the guide can be removed in order to facilitate adequate placement and attachment 1 Locate the wooden stud 2 Make a small opening in the wall to positively identify the position of the wooden stud Installation Procedures Preva 3 Draw an outline of the installation guide on the wall ensuring that the vertical height matches the requirements set forth on the Wall Mount Template 30 S0003 Open the wall so that the installation guide will rest directly on the wooden stud 4 Placethe installation guide on the wooden stud If the surface of the Installation Guide falls below the surface wall a correspondingly longer fastener must be chosen 5 Drill two 5 32 inch diameter holes using the installation guide as a drill template 23 Installation Procedures Preva 6 Attach the wall mounted control leaving the installation guide in place 24 Installation Procedures Remove Control 1 Unit Front 3 Cover 3 4
24. Preva Installing the Control Unit on a Dual Wood Stud Wall Mark and Drill The mounting template is a guide for locating where to drill the holes used to Wall Plate mount the wall plate to the wall Carefully placing the mounting template for two Mounting Holes stud mount installations on the wall will help ensure correct installation of the mounting plate and hence the Control Unit 1 Using a stud finder locate the center of the studs on which the wall plate will be mounted 2 Place the mounting template for the two stud mount on the wall with the lower mounting holes 40 inches above the floor 3 Place a level parallel to the vertical lines on the mounting template and adjust the mounting template until it is plumb 4 Tape the mounting template to the wall 5 Using an awl or other sharp object punch through the mounting template to mark the location of the mounting holes 6 Drill 5 32 pilot holes for common pine studs at marked locations 7 Remove the mounting template from the wall and save for future use Install the Wall In the dual wood wall stud installation the Control Unit is bolted to a wall plate Plate 30 A2042 that has been installed on two wood studs The wall plate shown in Figure 15 is shipped separately from the Preva 1 Select the 3 8 inch 3 inch long lag screws and washers 2 Putthe lag screws and washers through the mounting holes on the wall plate and loosely tighten Be sure that the power wire ex
25. Summary Showing Feedback Values After an Exposure 65 The Preva Dental X Ray System has a diagnostic mode in which you can display a summary of maintenance data or display feedback values after each exposure 1 From the Main System Configuration menu Figure 41 select CONFIGURE UNIT You will see the Configuration menu shown in Figure 44 2 Select SET CONFIG You will see the Set Configuration menu shown in Figure 45 3 To display a summary of maintenance data highlight select SHOW MAINT The following maintenance data are displayed e Total KJ kilojoules total system heat on the x ray tube e Exposure Count e Heboots power up cycles e OT Counts over threshold counts 4 Press any button on the Operator Panel to return to the Configuration menu If you take an x ray while in diagnostic mode the display shows feedback values for that exposure Until you exit diagnostic mode the display will continue to show feedback values after each exposure 1 From the Main System Configuration menu Figure 41 select CONFIGURE UNIT You will see the Configuration menu shown in Figure 44 2 Select SET CONFIG You will see the Set Configuration menu shown in Figure 45 3 From the Set Configuration menu use the up and down arrows to highlight DIAG MODE ON Press the right arrow button to turn on diagnostic mode 4 Exit System Configuration mode by highlighting and selecting EXIT in the Configuration and Main menus 5 Make an exp
26. TE Take care not to damage the connector Figure 25 977 Maintenance Preva 30 Feed the ground wire through the yoke collar NOTE Take care not to damage the connector Figure 26 31 Re attach the two ground cables that were removed in Step6 Figure 27 32 Connect the black and white connectors that were disconnected in Step 5 Figure 28 33 To ensure correct operation and to prevent damage to the yoke cake assemble perform the following steps 98 Maintenance Preva 33 1Point the tube head down 33 2 Check that the Large Phillips head screw is at the 9 o clock position and that there is a natural loop in the cable harness There should be a natural loop in Large Phillips head screw at the cable harness the 9 o clock position Figure 29 34 Mount the yoke cover that was removed in Step 4 lo Figure 30 35 Check to ensure the wires are not binding when you rotate the tube head completely clockwise or completely counter clockwise The cabling should expand and contract cleanly and evenly without any binding 99 Maintenance Preva 36 Place the Preva Cap back on the tube head Figure 31 37 Proceed with the Automated calibration if Logic PCB firmware revision is 5 0 or lower 100 Maintenance Preva Mechanical Adjustments Determining the The balance and friction of the Articulating Arm and the friction of the Tubehead Necessary are set initially at the factory Du
27. al supports Installation Options Preva Articulating Arm 1 SFC RECT HPP Control Unit Remote AI Control Tubehead Figure 1 Cone Component Diagram Your responsibilities as an installer and service engineer Verification of machine performance after installation must be performed according to the guidelines identified in the System Function Checklist which may be found in the User Manual or the Installation and Service Manual Verification of machine performance after maintenance or repair must be performed according to the guidelines identified in the System Function Checklist and the calibration instructions which may be found in the Installation and Service Manual Installation Options Preva Reach and Coverage Horizontal Arm Lengths Optional 12 Inch Cone Figure 2 Reach and Coverage Diagram The reach of the system is measured from the tip of the Cone with the arm fully extended and the Cone pointing back toward the pivot of the wall plate This measurement method accommodates the normal positioning of the Tubehead to the patient A patient can therefore be positioned without difficulty with the chair located within a radius outward from the pivot point to the dimensions shown in the diagrams The Preva Horizontal Arm is available in four lengths Each length gives the system a different reach Catalog P7015 with a 30 A2074 Horizontal Arm has a reach of 56 inches Catalog P7016 with a 30 A20
28. arge flat washers and nylock nuts to use when fastening the system to metal supports 14 Installation Options Preva Single Wood The Control Unit should be located at a height of 39 inches 99 cm from the floor to Stud Wall the bottom of the control mounted on the wood stud as shown in Figure 9 The Solid Wall or large range of travel of the Articulating Arm provides some flexibility in the vertical position Two mounting holes are provided Refer to the supplied mounting Reinforced template shown in Figure 8 for specific locations Wood Cabinet When installing in a reinforced wood cabinet refer to the manufacturer of the pass through box or cabinet for proper mounting configuration and height Refer to the supplied mounting template for specific locations of power supply and or Operator Panel cable access points In order to mount to a solid masonry type wall the same mounting holes and mounting template as the single wood wall stud are used The installer must supply appropriate fasteners The power supply 2x4 junction box should be mounted to the left of the mounting stud at the appropriate height as indicated in the mounting template Note A 4x4 junction box will not be covered by the Control Unit Refer to the supplied mounting template for specific location WARNING UNDER NO CIRCUMSTANCES SHOULD THE 82 INCH 208 CM REACH SYSTEM BE ATTACHED TO A WALL IN THE SINGLE Figure 9 STUD CONFIGURATION PLEASE DIRECT A
29. care not to pinch or damage the connectors See Fig 13 FIG 13 14 Secure the articulated arm assembly to the post with the two Allen bolts that were backed out in step 11 See Fig 14 o FIG 14 15 Locate and install the articulating arm brake assembly See Fig 15A Install 124 Appendix A Preva and adjust by tightening to the point were the articulating arm does not drift when you lightly push the arm See Fig 15B FIG 15A FIG 15B 16 Connect the power and feedback cables See Fig 16A Insert cables into the post See Fig 16B NOTE If needed pull excess into the control box FIG 16 A FIG 16 B 17 Install the cover plate See Fig 17 FIG 17 18 Remove the screw that locks down the Logic board Swing out the Logic Board 125 Appendix A Preva and connect the three connections as shown below See Fig 18 18A Black connector Feedback from tube head 18B White connector Power to tube head 18C Cat5 network cable IN B Attach white E i connector here d s i ES y Ex cable here FIG 18 19 Connect the Power on Switch connector to the Power Supply Board See Fig 20A Attach the control unit cover See Fig 20B o PZ Power On d AX switch A Ss connects here FIG 20A FIG 20B 20 Feed the Cat5 cable through the Operators panel cradle See Fig 21A Feed 126 Appendix A Preva remote exposure cable through the bo
30. causing personal injury Note Do not lubricate the shaft of the Articulating Arm or the bearings in the Control Unit 3 Position the Articulating Arm above the Horizontal Arm 4 Carefully route the cardboard tube with the arm cable plug through the opening in the Horizontal Arm 5 Insert the shaft of the Articulating Arm into the opening in the Horizontal Arm as shown in Figure 19 6 Press down until the shaft is completely seated in the Horizontal Arm 7 Remove the cardboard tube to free the wires Discard the cardboard tube 8 Untie the Articulating Arm and remove the plastic covering Figure 19 Installing the Articulating Arm and Tubehead Assembly 33 Installation Procedures Preva 1 Locate the Articulating Arm brake assembly 30 A2068 2 Insert the M6 x 25 mm long set screw as shown in Figure 20 Using a 3 mm Allen wrench tighten the screw fully than back off 1 4 and secure with the hex nut 3 Using a 3 mm Allen wrench install the Articulating Arm brake Tighten screws until the Articulating Arm brake comes into contact with the shaft of the Articulating Arm If additional friction is required to prevent drifting turn the two screws evenly turn at a time until drift stops as shown in Figure 21 Install the Articulating Arm Brake Assembly Figure 20 Installing the Hex Nut and Set Screw omes PSPC ROB P OB OR BPROBN OB OS BB BOBO OBOBBG P BS 9555 55 Articulating Arm Brake amp Screws F
31. coil cord hand switch Optional Installation Procedures Preva Installing the Progeny Remote Exposure Station 30 A2044 Tools 54 The Remote Exposure Station is an option for the Preva that allows the operator to make the exposure from a fixed location remote from the main unit As shown in Figure 36 a single switch can be used or two switches can be used in series or in parallel Two switches in series will require both switches to be pressed simultaneously to make an exposure If two switches are used in parallel only one needs to be pressed to make an exposure The following tools are required to install the switch Phillips screwdriver Flat blade screwdriver Telephone cable stripper for dual switch configuration only Wire stripper for dual switch configuration only Optional Installation Procedures Preva Remote Exposure Switch Remote Exposure Switch 1 Figure 36 Remote Switch Configurations 55 Optional Installation Procedures Preva Installing the 1 Single Switch 2 3 Figure 37 Single Switch Configuration 56 Route the cable for the Remote Exposure Switch from the Preva mounting location to the Remote Exposure Switch mounting location This can be done through conduit or on the wall surface For either method a 2 x 4 junction box should exist where the Remote Exposure Switch is to be mounted Thread the cable end with the handset connector through the opening in the wall mount cover from
32. conductors Connect the cable conductors to terminal block J1 on the PCB of switch enclosure 2 as shown in Figure 37 the same as the single switch configuration Make sure the two gray wires from the pushbutton switch are connected to terminals 1 and 2 of J2 Screw the inner section of enclosure 2 to the junction box using the two screws provided If the cable is routed on the surface of the wall make sure it sits in the notch on the bottom of the enclosure Confirm that no wires are being pinched between the junction box and the enclosure Hook the outer section of the enclosure onto the inner section at the top Push the wires all the way into the enclosure and fasten the two pieces at the bottom with the 6 32 x 5 16 inch screw Optional Installation Procedures Preva Connecting to a Generic 2 Wire Remote Exposure Switch To use a generic 2 wire switch connect the wires to the terminal block J3 Remote Exposure Switch Connector on the Logic Board 30 08160 as shown in Figure 40 in 108 2 1304 IHAGR US 24 13 126 6444 Il Figure 40 Installing the Remote Exposure Switch Installing the 12 Inch Cone 30 A2200 The Preva Dental X Ray System is factory set for use with the standard supplied 8 inch 20 cm Cone The 12 inch 30 cm Cone 30 A2200 is recommended when using parallel film positioning techniques Using the longer cone requires longer exposure times See the System Configuration section of this manual fo
33. dgjust the selected exposure time kilovoltage or tube current to produce an acceptable image If necessary reprogram the techniques factors as explained in the System Configuration section of this manual 2 Verify the kilovoltage and tube current during an exposure using the diagnostic mode as explained in the System Configuration section of this manual Alternatively you may employ a non invasive meter to evaluate kilovoltage and exposure time 3 Inspect the condition of the remaining imaging chain components such as the film chemistry and processor or the condition of the x ray sensor and computer 4 Check for pulsing output with fluorescent screen If this is occurring replace the Logic Board 5 Light image can be caused by the Logic Board This is characterized by a short pulse of exposure as viewed with a fluorescent screen Replace the Logic Board 6 Full fluorescence with light image may require adjustment of the preprogrammed techniques Replace the operator display board Replace the Operator Display Board or the Logic Board or both Replace the Logic Board Replace the Logic Board Troubleshooting X ray Indicator No Exposure Termination No Radiation Produced Display Shows Error Serial Communications Display Shows Pre termination Error Early Exposure Release Determined Not to be the Cause All X Ray Indicators But No Voltage Measured at J1 on the Power Supply Board Very Sho
34. e 31 F 150 F 35 C 66 C Support Requirements The Preva Dental X Ray System is designed to mount on a single wood 2x4 inch drywall stud or equivalent wall support It can also be mounted on concrete or other similar wall construction Mounting to a plywood or particle board wall is not acceptable Verifying the wall support capability and the selection of the proper mounting hardware is the responsibility of the installer Please note that a two stud wall plate assembly 30 A2042 is available as an option to mount on two wooden studs Assembly 30 A2043 is available as a metal stud mounting kit The wall support and mounting hardware for the Preva must withstand a 100 Ib 45 36 kg shear load and a 500 Ib 227 kg withdrawal force at each of the mounting bolts The wall fabrication and attachments to the building structure must be capable of withstanding a load moment of 920 ft lbs 418 kg m Installation Options Preva Electrical Requirements Main Power The Preva Dental X Ray System requires a three wire electrician supplied power supply Suppl Two power lines Line LINE and Neutral NEUT and a Ground GND are required It is pply recommended that the unit be installed with a dedicated electrical line connected to a breaker with a minimum 15 amp rating The wiring must provide for a permanently grounded power line configuration Line Cord Use The installer must determine the suitability of installing the Preva wit
35. e 84 0 Toshiba Tube 0 1 10 Rating Charts mna Time s 116 Specifications mA Los T LL EE LL 1 LB p a O 4 pe 7 LLL LISERSEL 4 a a bae DS RS SI 2 LLLA O NS SI BS IS NE A o US PS O WE 0 1 l 10 Rating Chart Figure 85 Kailong Tube 0 50 100 150 200 250 3005 Rating Charts Thermal Characteristics Chart 117 Preva Maintenance Appendix A Preva Assembly Instructions for DC Mobile Unit Tools Required 3 8 square drive hex key 10 mm 3 8 square drive hex key x 6 inch extension 3 8 square drive ratchet No 1 Phillips screwdriver 7 mm nut driver omall flat blade screwdriver 4 mm hex key 5 mm hex key Note It is recommended that 2 people assemble the unit 1 2 118 Remove the five screws that hold the control cover Carefully remove the cover Install the column into the base with the remote mount facing the control and install the special M12 socket cap screw into the hole under the control mounting plate and tighten Loosen but DO NOT REMOVE the M6 button head screws that hold the bushing assembly into the column so that the arm assembly will not interfere with the screws during installation Plug the cable to the arm assembly insert the arm assembly into the bushing and gently pull the other end of the cable as you install the arm assembly With the Tubehead over the long legs tighten the M6 button head screws Install the remote cradle and remote exposu
36. e Cord Not Shown 1 129 Maintenance Preva Appendix B Electronics Block Diagram Operator Panel Feedthrough Monitor PCB Power Supply PCB Filament Feedback Control mA kV Fil Logic PCB Operator Panel Buttons Exposure Key LCD Display Figure 86 Electronic Block Diagram 130
37. e assembly already pre mounted to the tube head This guide provides instructions for the installation technician on how to remove the original head install the replacement tube head and how to calibrate the replacement tube head Caution DO NOT REMOVE THE TUBE HEAD UNTIL THE ARTICULATING ARM ASSEMBLY HAS BEEN SECURED WITH THE PROVIDED CABLE TIE AND FOAM INSERT THE SPRING TENSION IS ADJUSTED TO ACCOUNT FOR THE WEIGHT OF THE TUBE HEAD THE ARTICUTING ARM WILL SPRING OPEN IF IT IS NOT SECURED AND CAN CAUSE SERIOUS INJURY Models Affected All Prevas Required tools Spanner wrench 30 1T0055 Needle nose pliers Metric Allen wrenches 2 Phillips head screw driver 1 Small Phillips head screw driver Fluorescent screen 22 11467 Instructions 1 The replacement head as received will have the yoke cable assembly pre attached NOTE Do not remove the yoke cable from the tube head Figure 60 2 Remove the cone from the head being replaced The cone sits in the tube head Grab the cone firmly pull and twist out in the same motion 88 Maintenance Preva Figure 61 3 Install the cone in the replacement tube head Figure 62 4 Remove the two Allen head screws from the yoke and remove the yoke cover 3mm screws Figure 63 5 Unplug the black and white connector 89 Maintenance Preva Figure 64 6 Remove the two Allen head screws that secure the 2 ground wires to the yoke Take note of the posit
38. e ribbon cable and communication cable are found acceptable open the Operator Panel case and measure for the presence of 5 volts DC across TP1 and TP4 of the Operator Panel Board as shown in Figure 48 Absence of this voltage indicates the need to reconfirm the power supply voltages and communication cable Presence of the voltage requires the replacement of the Operator Panel Board Troubleshooting Preva TP1 24 Volts DC TP 2 8 1 and 24 Volts DC t0 so j Common Return MEA TP 4 12 Volts DC TP 5 12 Volt DC Common Return J3 Line Switch Connector EEE FEA Figure 46 mE Power Supply J4 Input Power Terminal Strip Board 30 08041 CAU PEC lel 69 Troubleshooting Figure 47 Logic Board 30 08160 Figure 48 Operator Panel Board 30 08054 70 Preva Use TP8 or TP10 for Common Return when measuring DC voltages A NON O Hdl ME FE j je J TP9 24V DC a oe dT ERE H000 108 41 30d TP1 8 1V DC EAN EI TIN m LRL gt i a JE RP E TP1 5 Volts DC TP4 Common Return TIT OMM n Troubleshooting Light or Dark X Ray Images At Power up the Operator Display Stops at Progeny Preva At Power Up Continuous Beep Backlit Display No Display Characters No Ready Light Power Supplies OK At Power Up Continuous Beep with Normal Display At Power Up Buzzing Noise is Heard 71 Preva 1 A
39. e the model and serial number date of manufacture and a statement of certification as noted elsewhere in this manual Check for oil leaks or other evidence that could indicate internal damage Replace the Tubehead if necessary Ensure that the Tubehead maintains its position around the horizontal axis while remaining easy to rotate and position Also check the vertical pivot of the Tubehead for easy movement while remaining in position after moving Check that all movements are smooth and quiet Verify that the Tubehead is properly counterbalanced for vertical drift and that the Horizontal and Articulating Arms do not drift horizontally Verify that the switch is working properly and that the Ready Indicator is illuminated when the power switch is in the ON position With the power switch located at the upper right of the Control Unit in the ON position verify that technique factors appear on the Operator Panel Also check the function of the selection buttons for Tooth Selection Image Receptor Type and Patient Size Pressing a selection button should cause indicator lamps to indicate the selected item Verify that the Exposure button on the Operator Panel is functioning properly To make an exposure press and hold the Exposure button until the Radiation Indicator is extinguished and the audible signal is no longer heard Make several exposures and verify that the Radiation Indicator illuminates and the audible signal i
40. ead cap screws and M6 spring lock washer Appendix A Preva 1 Open the box from the top side and remove top layer of packing material See Fig 1 FIG 1 2 Remove all transportation screws from the base of the crate QTY 10 See Fig 2 FIG 2 3 Lift the shipping box and separate from the crate There are two layers or parts 119 Appendix A Preva Separate the top layer and place on the floor This is a two person job or remove each piece individually NOTE Take extra care when handling the articulating arm assembly to avoid any damage to tube head See Fig 3 FIG 3 4 Cut the transportation band from the lower layer that holds the mobile base See fig 4 FIG 4 5 Remove top cover of control unit by removing screws located at the base of the cover See Fig 5A NOTE Be careful when removing top cover The power switch is connected Lift carefully and disconnect power switch from the Power Board See Fig 5B FIG 5A FIG 5B 120 Appendix A Preva 6 Separate the mobile unit base from the pallet CAUTION This should be done taking proper lifting precautions The base is heavy and requires two people to lift See Fig 6 Ne FIG 6 7 Locate hardware clamp and bracket for power cord See Fig 7A Feed the power cord through the grommet of the control unit cover See Fig 7B Mount the clamp and bracket to the chassis of control unit See Fig 7C FIG 7A FIG 7B
41. ect the condition of the ribbon cable between the Power Supply and the Logic Boards If the ribbon cable is acceptable replace the Logic Board wo 108 41 30d l Otr 23 13 1265 54 04 10 Troubleshooting PROGENY INC uv rmt uir Figure 57 Power Supply Board 30 08041 82 Troubleshooting Preva High voltage High voltage breakdown is characterized by a loud snap sound during an Breakdown exposure request 1 On the Power Supply Board measure the voltage across TP5 the Common Return and TP8 350 volts DC as shown in Figure 58 This voltage will be acceptable if measured between 330 and 390 volts DC Values above or below this number indicate the need to replace the Power Supply Board 2 Ifthe voltage is correct inspect the condition of the cabling between the Power Supply Board Logic Board and Tubehead Assembly CAUTION High voltage present Of particular importance are the conductors held by the black connectors These conductors transmit the feedback values from the Tubehead Assembly and directly affect the control of power to the Tubehead Assembly Connections for this cable begin with controls at J1 of the Power Supply Board and J4 of the Logic Board As shown in Figure 51 an internal set of connections will be accessed below the distal side of the horizontal arm and at the inside top of the Tubehead Yoke The final set of connections is accessed by removing the Pivot Cap located at the at
42. er the system is turned off electrical energy will remain in the Power Supply Board for several minutes When attempting any service on this board first verify that voltage has dissipated On Power Supply Board 30 08041 shown in Figure 28 verify that LED D11 is illuminated The illuminated LED verifies that appropriate supply voltages are present Note Stored electrical energy is present whenever D11 is illuminated On the Logic Board 30 08160 shown in Figure 28 verify that LEDs D7 5VDC D8 12VDC and D9 24VDC are illuminated and LED D10 is flashing Each illuminated LED verifies that appropriate supply voltages are present If the LEDs are not illuminated refer to the No Operator Display but Power Switch is On procedure in the Troubleshooting section of this manual Turn off the Preva Dental X Ray System using the power switch as shown in Figure 26 Power Supply Control 4 Board 30 08043 OL AMNEM O CEDIDA D7 45 Volts D pos D11 350 Volts DC D8 12 Volts DC PETC PTR Pee D9 24 Volts DC Power Supply D10 Communications Exe i Board 30 08041 Installation Procedures Preva Mechanical Adjustments Horizontal Arm 1 Locate the brake assembly at the top of the Control Unit The brake Adjustment assembly has a screw on either side of a clamping bar over the Horizontal Arm pivot post 2 Using a 4 mm Allen wrench as shown in Figure 29 tighten the screws equally to apply adequate braking to the
43. h a line cord If a line cord is used the installer must ensure that the unit is properly grounded and has the required line rating Line Voltage Nominal 110 230 VAC 10 Fuse Rating 5A 250V UL Recognized Max Line Nominal Voltage Line Resistance Resistance 120 230 VAC 0 4 ohm Compliance with Applicable Standards Radiation The certified components of the Preva Dental X Ray System comply with Radiation Protection Performance Standards 21 CFR Subchapter J at the time of manufacture The certified components of the Preva Dental X Ray System comply with IEC 60601 1 3 Radiation protection x ray equipment UL 2601 1 File Classified by Underwriters Laboratories Inc with respect to electrical shock fire and Number mechanical hazards only in accordance with UL 2601 1 and CAN CSA C22 2 NO 601 1 M90 and to the following particular standards IEC60601 2 7 IEC60601 2 28 E181750 EMI EMC IEC60601 1 2 Certified Components System Component Reference Number Tubehead 30 A1027 Control Unit 30 A0010 Cone 8 in 30 A2195 Cone 12 in 30 A2200 Cone 8 in Rectangular 30 A2198 Cone 12 in Rectangular 30 A2203 Cone 60 mm 30 A2196 10 Installation Options Preva EC Declaration of Conformity Name and Progeny Preva Description of Product Catalog P7018 82 inch reach Model 30 A0010 Control 30 A2164 Extension Arm Extra Long Catalog P7017 76 inch reach Model 30 A0010 Control 30 A2071 Extension Arm Long Catalog P7016 66 inch
44. he cover into place as shown in Figure 30 being careful of the power switch and cover alignment Replace the screw on the front cover of the Control Unit Plug the cable into the bottom of the Operator Panel Snap the Operator Panel into place on the front cover of the Control Unit as shown in Figure 31 Installation Procedures Figure 31 Snapping in the Operator Panel 44 Preva Installation Procedures Remote Operator Panel 45 Preva In the remote location the Operator Panel snaps to the Operator Panel mounting cradle which is first mounted on the wall 1 10 11 12 13 14 15 Place and level the mounting template shown in Figure 8 at eye level in the location where the Operator Panel is to be installed Tape the mounting template to the wall Using an awl or other sharp object punch through the mounting template to mark the location for the bolts for the Operator Panel mounting cradle Drill pilot holes at marked locations With a drywall knife cut an opening as shown on the mounting template Remove the mounting template from the wall Using the anchors and screws from the mounting hardware bag install the Operator Panel mounting cradle in the position marked Locate the 25 foot remote control cable Run the remote control cable in compliance with local codes from the intended location of the remote Operator Panel to the back of the Control Unit Note The cable can also be run to an e
45. he attachment stud may have additional hidden loads The location of the pilot hole with respect to the center of the stud will affect the load bearing ability The size of the pilot hole required for the lag screw will be different based on the grade age and condition of the lumber Never over tighten the lag screw as this will weaken the mechanical connection Lumber with splits or cracks should not be used for attachment Plywood particle board or similar construction materials should not be used for attachment Consider lumber dryness or moisture when attaching to exterior framing studs Progeny mechanical designs will exert up to 920 pounds 418 kilograms of loading on the supporting structure Progeny provides fasteners for average installations Based on specific installation conditions it may be necessary to choose a alternate fastener or fastening methods If the surface of the Installation Guide falls below the surface of the wall a correspondingly longer fastener must be chosen oeek the advice of a professional structural engineer to clarify any issues before the installation Inspect the attachment method 30 days after the installation and every 6 months thereafter Lag screws are not intended to be used as an attachment method for metal supports such as those found in center island pass through cabinets Progeny provides machine screws large flat washers and nylock nuts to use when fastening the system to met
46. he feedback voltage to the reference Follow these steps to establish proper operation of the kV controls 1 On the Logic Board place a voltmeter on TP8 or TP10 the Common Return and TP6 kV Program as shown in Figure 59 Compare measurements to the following chart volts DC 60 kV 65 kV 70 kV 4mA 3 1 3 4 3 5mA 3 2 3 5 3 75 6 mA 3 3 3 8 3 8 7 mA 3 4 3 7 NA 2 To evaluate the feedback voltages that represent the measured kV within the system compare the observed values in the table below To properly observe these values select 1 5 seconds of exposure time and measure the DC voltages during the exposure only This measurement is made across TP8 or TP10 the common return and TP3 the kV Monitor as shown in Figure 59 60 kV 65 kV 70 kV 4 mA 3 1 3 4 3 7 5 mA 3 2 3 5 3 75 6 mA 3 9 3 6 3 8 7 mA 3 9 3 65 NA Values that approximately match the above tables represent a correctly operating system Other values may indicate that boards need to be replaced Additional assistance can be obtained from Progeny Technical Support Troubleshooting Figure 59 Logic Board 30 08160 86 J3 Cable Connector TP3 kV Monitor TP6 kV Progr Dn i REMOTE kru J LRE Preva Use TP8 or TP10 for Common Return when measuring DC voltages AAA AAA BEEBE EEE BREE BEEBE ERB RB RRR BRR ee ort A CH GRE HOI 0000 108 4130 Troubleshooting Preva Incorrect mA At times various measurements of an otherwise fully fu
47. he metal wall stud installation the Control Unit is bolted to a wall plate Figure 15 that has been installed to the support plate shown in Figure 16 The wall and support plates are shipped separately from the Preva Put the small then the larger washers and nut on each of the four carriage bolts 2 Insert the carriage bolts into the support plate holes 3 Screw the threaded standoffs onto the carriage bolts with the slotted ends away from the back plate 4 Place the plastic sleeve bearings in the slotted ends of the carriage bolts 5 Using a 5 32 Allen key insert a set screw into each threaded standoff Screw the set screw until just below the slot in the threaded standoff but do not tighten 6 Using two sheet metal screws mount and level the support plate through the pilot holes on the back side of the wall Tighten the sheet metal screws with the screw driver 7 On the front side of the wall using a straight blade screw driver adjust the threaded standoffs until the plastic part is flush with the drywall 8 Tighten the set screws in the threaded standoffs to lock them in place Installation Procedures Preva Figure 16 Support Plate for Metal Stud Wall Mount Select the 5 16 inch 1 inch long hex bolts Put the hex bolts through the mounting holes on the wall plate and loosely tighten Be sure that the power wire extends through the opening in the wall plate 3 Level the wall plate 4 Tighten the hex bolts Ins
48. hown in Figure 76 tighten both screws evenly at each adjustment point until the movement of the Articulating Arm is as desired Do not loosen adjustment points so far as to allow the Articulating Arm to drift Figure 76 Friction Adjustments 106 Maintenance Preva Factory Default Exposure Settings The tables below show the factory default exposure settings for each combination of Tooth Image Receptor Type and Patient Size on the Operator Panel These exposure settings can be modified using the System Configuration mode See the System Configuration section for details 8 inch Cone 20 cm Progeny amp Schick Dexis Kodak Sirona PSP D Speed E F Speed Adult Child Adult Child Adult Child Adult Child Adult Child Adult Child Adult Child Adult Child 69 9 8 6 O 0 T or 60 60 65 65 60 60 65 65 60 60 60 60 60 60 60 60 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 g 0 125 0 064 0 080 0 050 0 125 0 064 0 080 0 050 0 080 0 064 0 160 0 080 0 320 0 160 0 160 0 080 Bicuspid Incisor Bitewing 0 200 0 100 12 inch Cone 30 cm Progeny amp Schick Dexis Kodak Sirona D Speed E F Speed Adult Child Adult Child Adult Child Adult Child Adult Child Adult Child Adult Child Adult Child or 6 0 6 0 PP 03 9 93 94 Incisor 60 60 65 65 60 60 65 65 60 60 60 60 60 60 60 60 H 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 0 250 0 125 0 160 0 100 0 250 0 125 0 160 0 100 0 160 0 125 0 320 0 160 0 640 0 320 0 320 0 160 B
49. iculated arm wiring Repair as necessary If wiring is intact and the firmware revision is 5 0 or less attempt system recalibration If greater replace logic PCB assy If calibration cannot be achieved the problem may require replacement of the tubehead assembly Contact Progeny technical support for further assistance Check if D14 DIAG LED Logic Board is on If so check that DIP Switch 2 411 Logic Board is in the correct position for the brand of x ray tube in the unit The label on the tube head will indicate either Toshiba or Kailong DIP Switch 22 should be in the OFF position for Toshiba ON for Kailong Troubleshooting No X Ray Produced but Exposure Indicators Detected No kV Produced 73 Preva When no x ray is produced the Preva may still operate the exposure indicators The procedure to troubleshoot a no x ray condition depends on which exposure indicators are detected 1 STO Activate diagnostic mode as explained in the System Configuration section of this manual Take an exposure Follow the appropriate procedure below e f no kV is produced go to the procedure No kV Produced e If no mA is produced go to the procedure No mA Produced e l no I is produced go to the procedure No I Filament Produced On the Power Supply Board observe that the power supply indicator D11 350volts DC is illuminated as shown in Figure 49 Illumination represents p
50. icuspid Bitewing Maintenance Preva Arm and Tubehead Pivot Joint Cover Male 30 P0031 30 A1024 Gray Articulating Arm amp Yoke Assy e 30 P0001 i Pivot Joint Cover Female 30 P0030 Gray 30 P0014 lt Yoke End Cover 30 P0033 Pe 30 A1083 Gray Female Cover Handle S gt 2 Yoke Assy Preva en P 30 P0034 30 A1027 p Gray Male Cover Handle Tube Head Ki ne 30 A2205 5 e Base O O 30 08071 PT T ERE 7 O Yoke Cable Assy 70 mm Cone 30 F0003 G e Friction Washer O 30 P0042 Harness Clamp i 30 P0048 Figure 77 30 M0017 Yoke Cap Arm and Friction Nut Prova Tube Head 108 Maintenance Preva Horizontal Arm 30 A2074 Extension Arm Assy 30 A2073 Extensi n Arm Assy Short 30 A2071 Extension Arm Assy 30 08068 Long 30 A2164 Extension Extension Arm Cable M Arm Assy Compact 7 t4 3008068 Extra long e a s Extension pt ipic 24 Arm Cable a ES as 3008067 8 t C Extension 30 08142 A t Arm Cable L Extension I pr z Long 2 Arm Cable 30 P0018 lt Extension Arm End Cap Standard i N 30 P0032 Br Grey pots H1 63 M09008 17 ccess l C Mounting oe over Mounting Screws H1 63 MO9008 17 Standard Y Cover Mounting Screws 30 A2068 Articulated Arm Brake 30 A2068 Articulated Arm Brake Figure 78 Horizonta Arm Art Arm Brake 30 A2068 109 Maintenance Preva Mounting Plates 3
51. ie block Figure 23A Tying optional sensor cable out of harms way 37 Installation Procedures Preva Connecting 1 Line Power 2 3 4 5 Figure 24 Power Line Terminal Strip Cover Using a 3 mm Allen wrench remove the power line terminal strip cover at the base of the Logic Board to gain access to the power line terminal strip as shown in Figure 24 Attach a flanged spade and connect the hot black wire of the power line to the connection identified as LINE on the power strip Attach a flanged spade and connect the neutral white wire of the line to the connection identified as NEUT on the power strip Attach a flanged spade and connect the ground green wire of the line to the connection identified as GND on the power strip Leave the power line terminal strip cover off until the following electrical verification procedure is complete A ALA a Bo EEE Power Line Terminal Strip Cover E EERE A EERE EERE ERER Ee Ee EE EE EErEE EERE E REFE HE FEEFEE EEE Connector Ji Connecting During initial powerup and verification the Operator Panel is required Connect the the Operator Panel with the 25 ft interconnect cable Later you will connect the Operator Operator Panel in its final position for use 1 Identify the Operator Panel and the 25 ft interconnect cable Panel with 2 Plug the cable into the left socket at the base of the Operator Panel the 25 ft 3 Plug the other end of the cable i
52. igure 21 Adjusting the Articulating Arm Brake Assembly 34 Installation Procedures Preva Connecting the Cables Connecting 1 Connect the two Articulating Arm cables to the Horizontal Arm cables as shown in the Figure 22 and 22A 2 Once the connections are made dress the cables and push into the opening in the Horizontal Arm Articulating and Horizontal Arm Cables Figure 22 Connecting the Articulating Arm and Horizontal Arm Cables Figure 22A Connecting optional Integrated Sensor Cable 35 Installation Procedures Preva Connecting CAUTION the m Horizontal Verify that line power is disconnected before proceeding Arm Cables 1 Attach the black connector from the Horizontal Arm to point J4 of the Logic Board to the 30 08160 as shown in Figure 23 Power Note The plug must be properly oriented Be sure that the tabs on the connector Supply are down 2 Attach the white connector from the Horizontal Arm to point J1 on the Power Supply Board Board 30 08041 as shown in Figure 23 Note The plug must be properly oriented Be sure that the tabs on the connector are down Figure 23 Connecting the Horizontal Arm Cables to the Circuit Boards Optional 1 Optional integrated sensor cable Ty wrap the USB cable to the tie block Integrated provided as shown in Figure 23A Sensor 36 Installation Procedures Preva Attach provided tie block here loop and tie the cable to the t
53. ion menu CONFIGURE UNIT SET CONFIG SHOW MAINT EXIT Figure 44 Configuration Menu 63 System Configuration Preva Changing the Cone Size Selecting SET CONFIG from the Configuration menu Figure 44 displays the Set Configuration menu Figure 45 with options to change the cone size The Preva Dental X Ray System is factory set for use with the standard supplied 8 inch 20 cm Cone The 12 inch 30 cm Cone 30 A2033 is available Using the longer Cone requires longer exposure times which the Preva automatically selects when you change the Cone size in the Set Configuration menu Using a 12 inch 1 Cone 2 En 4 5 Figure 45 Set Configuration Menu 64 From the Main System Configuration menu Figure 41 select CONFIGURE UNIT You will see the Configuration menu shown in Figure 44 Select SET CONFIG You will see the Set Configuration menu shown in Figure 45 From the Set Configuration menu use the up and down arrows to highlight the 12 CONE SIZE Press the right arrow button to select the 12 inch Cone The display warns you that selecting the 12 inch Cone will override custom presets with the default factory settings for the 12 inch Cone Using the up arrow select YES to install presets for the 12 inch Cone SET CONFIG 12 CONE SIZE DIAG MODE ON PDIAG MODE OFF P EXIT System Configuration Preva Diagnostic Mode About Diagnostic Mode Showing the Maintenance
54. ion of each ground wire 3mm screws 2x Figure 65 7 Remove the end cap from the side of the tube head Figure 66 8 Remove the small Phillips head screw that holds the cable restraint 90 Maintenance Preva Figure 67 9 Remove the larger Phillips head screw Figure 68 10 Remove the larger retaining ring by pulling it out with a pair of needle nose pliers Figure 69 11 Unplug the black and white connectors located inside the tube head 91 Maintenance Preva Figure 70 12 Secure the scissor arm with the provided cable tie and foam separator before removing both spanner rings WARNIING DO NOT REMOVE THE TUBE HEAD UNTIL THIS STEP HAS BEEN COMPLETED THE SPRING TENSION IS ADJUSTED TO INCLUDE THE WEIGHT OF THE TUBE HEAD THE ARTICUTING ARM WILL SPRING OPEN IF IT IS NOT SECURED AND CAN CAUSE SERIOUS INJURY Figure 12 13 Assemble the spanner wrench by threading the two leverage arms into the base of the spanner wrench 02 Maintenance Preva Figure 13 14 Align the 3 pins on the spanner tool with the alignment holes in the brass spanner nut Alignment Figure 14 15 Break loose the spanner ring by turning the spanner wrench counter clockwise Figure 15 16 Repeat Steps 14 amp 15 to remove the second spanner ring 17 Carefully remove the tube head from the yoke 93 Maintenance Preva Figure 16 18 Remember to transfer the friction ring from
55. is mounted on the wall remote from the Control Unit rang If the Operator Panel is mounted separate from the Control Unit a supplied cable must be run from the Control Panel to the Operator Panel Where local codes require a separate 2x4 junction box should be mounted to the left of the mounting stud above the power supply box Refer to the supplied mounting template for specific location 19 Maintenance Preva Installation Procedures Preparing to Install the Preva Check Pre installation Requirements Gather Tools Installation Time Open the Shipping Carton 20 Prior to beginning the installation be sure that all pre installation requirements have been completed This includes confirming that the wall support requirements are adequate for mounting the unit and that the electrical power requirements and wire locations are proper Note Progeny recommends that the Preva Dental X Ray System be connected to dedicated wiring and permanently grounded The installer must determine the suitability of using a line cord at the time of installation ensuring proper grounding technique Items needed for all types of mounts e Stud finder Bubble level torpedo level Masking or other tape for placing the mounting template on the wall Awl Drill driver and drill bits appropriate to type of wall mounting Metric Allen wrench set English inch Allen wrench set Screwdrivers flat blade and Phillips Torque wrench 0 40 ft lbs
56. lations concerning radiation protection The operator at all times must remain 6ft 2m from the focal spot and the x ray beam for operator protection Full use must be made of all radiation safety features on the equipment Full use must be made of all radiation protection devices accessories and procedures available to protect the patient and operator from x ray radiation Only qualified and authorized service personnel should remove covers on the equipment This equipment must only be used in rooms or areas that comply with all applicable laws and recommendations concerning electrical safety in rooms used for medical purposes e g IEC US National Electrical code or VDE standards concerning provisions of an additional protective earth ground terminal for power supply connection Before cleaning or disinfecting this equipment must always be disconnected from the main electrical supply The Preva Dental X Ray System is ordinary type medical equipment without protection against ingress of liquids To protect against short circuit and corrosion no water or any other liquid should be allowed to leak inside the equipment This equipment must not be used in the presence of flammable or potentially explosive gases or vapors which could ignite causing personal injury and or damage to the equipment If such disinfectants are used the vapor must be allowed to disperse before using the equipment Installation Options Preva Explanation
57. lectrical box or opening at the top left of the wall plate assembly A sufficient length of cable should be left available to bring the remote cable out to the bottom front of the Control Unit Plug the remote control cable into the bottom of the Logic Board 30 08160 Place the top of the front cover on the Control Unit and pop the bottom of the cover into place as shown in Figure 30 being careful of the power switch and cover alignment Replace the screw on the front cover of the Control Unit Place the Progeny cover plate over the top opening and the small trim cover over the bottom opening on the front cover of the Control Unit Locate the Operator Panel in the top portion of the shipping carton Connect the other end of the remote cable to the right plug as viewed from the back on the bottom of the Operator Panel Carefully dress the white cable back into the wall onap the Operator Panel to the mounting cradle as shown in Figure 32 Installation Procedures Preva Figure 32 Snapping the Operator Panel to the Mounting Cradle 46 Installation Procedures Preva Installing Plastic Covers The end cap for the Horizontal Arm is shipped in the bag of plastic parts and is put on as part of the installation procedures End caps for the Articulating Arm are shipped installed but are removable to perform mechanical adjustments The cable access cover is placed over the cable connection underneath the Horizontal Arm Cover locations are
58. n or loosen screws as necessary to get proper movement without unwanted horizontal movement of the Articulating Arm Brake Assembly CAUTION Do not attempt to adjust any other screws in the Horizontal Arm y D AAA Art culating Arm Brake amp Screws Figure 72 Adjusting the Articulating Arm Brake Assembly 102 Maintenance Adjusting the Articulating Arm Figure 73 Adjusting the Articulating Arm 103 Preva Follow this procedure ONLY if the yoke assembly does not stop on its own and hits the horizontal arm Refer to Figure 73 while following the procedures below 1 Loosen the two set screws highlighted in Figure 73 but do not remove them completely 2 Loosen the two straight slotted screws highlighted in Figure 73 the figure shows only one of the two screws the other is located on the opposite side of the arm but do not remove them completely 3 Move the articulating arm into the position where you want it to stop before it hits the horizontal arm 4 Tighten the two straight slotted screws 5 Tighten the two set screws AREA Straight Slotted Screws Maintenance Outside Articulating Arm Vertical Movement Figure 74 Adjusting Vertical Movement of the Articulating Arm 104 Preva Remove the plastic trim covers from the end of the Articulating Arm nearest to the Tubehead Position the Articulating Arm with the arm nearest the Tubehead fully upward Insert a 9 inch long 8 mm
59. nccconaccncnnncncnnanoncnnns 22 Installing the Control Unit on a Dual Wood Stud Wall ooocccooccccocncconcnconcnnnoncncnnnnos 27 Installing the Control Unit on a Metal Stud Wall oocccoccococcncccnnncccnnonacnnnnnnonanononanons 29 Installing the Horizontal Arm and Brake Assembly sese 31 Installing the Articulating Arm and Tubehead Assembly oocccoccccccncccncocnccncncnanononoconcnnnanonos 33 ConnecHng me Gables uso catt do de tat AA TU eS 35 wi Teigreibi idiieciioq ttr 39 yifstejsreialle me ve lli aH Is dc TES 42 Installing the Control Unit Front Cover and the Operator Panel ssesssese 43 Iristalling Plastic OVI S venerado dee tata E Euh Ru ho Rea uo R Su Caput esa dUR E Ad uta REURE URDU PE pub 47 Prov ODSIdI Ob P alielsoiesceu520 229 490 929495 990450 00 09 2801999506 0 0 uS diiu dtd eere se estudia 48 CHECKING eiii alere m 49 System FUNCTION CHEGCKIISE cocta certe iii 50 Tube SEASONING PrOGGdUfe oo ree Ete sided td 51 Refer to Page 66 for the Calibration procedure ocococcccocccccccnnconcnccncnconnnnnnnnnnnncnnnnnnononcnnnnnnos 51 Optional Installation Procedures xiii a or ee Ee e e Ee ee A en euis 52 Installing the Coil cord Hand Switch Option 30 A2040 occcoocccccoccnccccncccoccnconcnonacnccnnnnnnncncnnnos 52 Installing the Progeny Remote Exposure Station 30 A2044 eeseeeeeeeeeeeeese 54 Installing the
60. nctional system indicate that milliamperage may be incorrect Milliamperage is controlled by the microprocessor and is not adjustable The Preva generates milliamperage by first establishing a reference voltage and then comparing the feedback voltage to the reference Follow these steps to establish proper operation of the mA controls 1 Onthe Logic Board place a voltmeter on TP8 or TP10 the Common Return and TP2 mA Program as shown in Figure 59 Compare measurements to the following chart volts DC 60 kV 65 kV 70 kV 4 mA 3 1 3 4 3 7 5 mA 3 2 3 5 3 75 6 mA 3 3 3 8 3 8 7 mA 3 4 3 7 NA 2 To evaluate the feedback voltages which represent the measured mA within the system refer to the table below select 1 5 seconds of exposure time and measure the DC voltages during the exposure only This measurement is made across TP8 or TP10 the Common Return and TP4 the mA Monitor as shown in Figure 59 Volts DC 4 mA 2 5 mA 2 4 6 mA 2 9 7 mA 3 4 Values which approximately match the above tables represent a correctly operating system Other values may indicate that boards need to be replaced Further assistance can be obtained from Progeny Technical Support Obtaining Technical Support Contact Midmark Corporation 675 Heathrow Dr Lincolnshire IL 60069 Phone 888 924 3800 Fax 847 415 9801 87 Maintenance Preva Maintenance Preva Tubehead Removal Instructions Overview The new tube heads are being shipped with the yoke cabl
61. nd after the system has been turned off e The Preva system will store energy for approximately three minutes after removal from power lines Before attempting service within the system observe the green LED D11 of the Power Supply Board Illumination represents the presence of stored energy As an added safety practice it is recommended to measure for the presence of DC voltage across TP8 and TP5 of the Power Supply Board Troubleshooting No Operator Display but Power Switch is ON 68 Preva Your responsibilities as an installer and service engineer Verification of machine performance after installation must be performed according to the guidelines identified in the System Function Checklist which may be found in the User Manual or the Installation and Service Manual Verification of machine performance after maintenance or repair must be performed according to the guidelines identified in the System Function Checklist and the calibration instructions which may be found in the Installation and Service Manual 1 Onthe Power Supply Board 30 08041 check for the presence of 100 to 230 volts AC at J4 the Input Power Terminal Strip as shown in Figure 46 If power is absent check that the Preva is connected to line power 2 Onthe Power Supply Board 30 08041 measure incoming power at J3 the Line Switch Connector as shown in Figure 46 Positions 2 and 4 carry the line voltage before the Line Switch and position
62. nge Presets PRESETS You will see the Preset Options menu shown in Figure 43 Selecting EXIT returns the display to the Main System Configuration menu Menu Changing All 1 Select ALTER DENSITIES from the Preset Options menu The first Image Receptor Receptor Type illuminates The display shows the selected Image Receptor Settings Type and current density 2 Using the Image Receptor Type button select the image receptor to adjust Globally 3 Use the up and down arrow buttons to specify a percentage by which densities will be increased or decreased for the selected receptor Densities can be increased in steps of 2596 and decreased in steps of 2096 4 Press the right arrow to save your settings Preprogramming 1 Energize the system to Digital 2 Press the Tooth Selection and Patient Size Selection buttons for five full Sensors seconds 3 Select CHANGE PRESETS from the Menu Options screen 4 Select SELECT RECEPTOR from the Preset Options menu 5 Press the up or down button to highlight the sensor or phosphor plate to change and press Enter 6 Select YES or NO on the Verification screen 7 Exit the Preset Options menu Changing 1 Select EDIT PRESETS from the Preset Options menu The display notifies Presets you that you are entering Edit Preset Mode and Tooth Size Image Receptor Individually Type and Patient Size are illuminated 2 Use the Tooth Selection Image Receptor Type and Patient Size Selection buttons to selec
63. nt inspect the inter connect cables between the control and Tubehead Assembly Connections for this cable begin with controls at J1 of the Power Supply Board and J3 of the Logic Board As shown in Figure 51 an internal set of connections will be accessed below the distal side of the horizontal arm and at the inside top of the Tubehead Yoke The final set of connections is accessed by removing the Pivot Cap located at the attachment point of the Tubehead to the Yoke If the voltages are present replace the Tubehead Assembly Troubleshooting Preva J3 Cable Connector Use TP8 or TP10 for Common Return when measuring DC voltages TP9 24V DC Pt A cr Co j Exp 111213 es o i 07 F N d WoW f FOEI H2070 LE TP1 8 1V DC itey Figure 52 Logic Board 30 08160 TI Troubleshooting Preva Figure 53 Power Supply Board 30 08041 78 Troubleshooting Preva No I Filament 1 On the Logic Board measure voltages at TP1 8 1V and TP9 24V Use Produced TP8 or TP10 as Common Return If any of these voltages are not present after power is applied next check voltages on the Power Supply Board 2 Onthe Power Supply Board use TP2 as a common test point to check TP1 24 volts DC and TP3 8 1 volts DC Then use TP5 as the common return to check TP4 for the presence of 12 volts DC as shown in Figure 55 Should any of these voltages not be present replace the Power Supply Board Use TP8 o
64. nto connector J1 on the Logic Board 30 08160 as Cable shown in Figure 24 38 Installation Procedures Preva Electrical Verification Calibration Verifying Input Voltage and Turning On the System Figure 25 Verifying Input Voltage at the Line Input 39 Calibration of the Preva Dental X Ray System is preset at the factory and is not required during initial installation Service replacement of the Logic Board 30 08160 or the Tubehead may require calibration See the Calibration section of this manual 1 Before turning on the system verify the input voltage by measuring the voltage at LINE and NEUT as shown in Figure 25 The reading should be within the range of 100 230V 10 2 Replace the power line terminal strip cover 3 Turn on the Preva Dental X Ray System using the power switch as shown in Figure 26 On the Operator Panel Figure 27 you will see the product display screen showing the software version Then the Operator Panel will display the default technique factors E dl LA YN Y E la M j ue L s yn m a Installation Procedures Preva On Off Switch Figure 26 Turning on the Power Figure 27 Operator Panel 40 Installation Procedures Circuit Board Verification 1 2 3 Figure 28 Circuit Board Verification 4 Preva CAUTION The Power Supply Board 30 08041 when energized contains high electrical energy Avoid contact with this board Aft
65. on the base of the Control Unit front cover Route both the Operator Panel cable and the coil cord hand switch through the hole in the bottom of the Control Unit front cover Place a loop of the coil cord into the notch Carefully reassemble the Control Unit front cover keeping the coil cord in the notch Secure the front cover with the screw that was removed in step 1 Locate the Operator Panel in the top portion of the shipping carton Connect the coil cord hand switch to the left plug socket as viewed from the back on the bottom of the Operator Panel Connect the short white cable to the right plug socket Carefully dress the two cables back into the front cover of the Control Unit Snap the Operator Panel into place on the front cover of the Control Unit Mount the bracket for the coil cord hand switch in a convenient location Stow the coil cord hand switch Route the cable from the coil cord hand switch through the hole in the wall mounting plate Place a loop of the coil cord into the notch Locate the Operator Panel in the top portion of the shipping carton Connect the coil cord hand switch to the left plug socket as viewed from the back on the bottom of the Operator Panel Connect the control cable to the right plug socket Carefully dress the two cables back into the wall Snap the Operator Panel into place on the wall mounting plate Mount the bracket for the coil cord hand switch in a convenient location Stow the
66. or equivalent Sockets and ratchet driver appropriate to type of wall mounting Fluke model 73 DVM equivalent or better Small test clips such as Pomona Electronics Minigrabber Test Clip Model 6248 or Radio Shack Mini Hook Adapters catalog 270 334 Items needed only for the metal stud wall mount e 1 inch hole saw Dry wall saw Y inch diameter 12 inch long drill bit Two 4x4 wood studs Drywall screws The Preva Dental X Ray System has been designed to be installed by one person in less than one hour assuming that all pre installation requirements have been met The Preva Dental X Ray System is shipped in a convenient two level carton as shown in Figure 13 The first level contains the items needed for the first part of the installation including the Control Unit Operator Panel Horizontal Arm mounting template documentation cables and bags containing the mounting hardware brake assembly plastic covers and additional hardware The Articulating Arm and Tubehead Assembly is in the second level of the shipping carton where it can remain until it is installed Installation Procedures Figure 13 Two level Carton Packing List 21 Preva Part Number 30 A1010 30 A1025 30 A2076 30 P0029 30 A2046 30 A2156 E1 13002 E1 13003 E1 13004 30 A 2086 30 P0076 30 A2071 30 A2073 30 A2074 30 A2164 Options E1 13034 30 08101 30 A2044 30 A2198 22 11466 22 11467 30 A2042 00 02 0488 30 A2100 30 A2099 30 A21
67. osure The display will show the following feedback values e kV e mA e Filament current 6 Press any button on the Operator Panel to clear the feedback values from the display 7 To exit diagnostic mode press the Tooth Selection and Patient Size Selection buttons simultaneously for 5 seconds to display the Main System Configuration menu From the Main menu highlight and select CONFIGURE UNIT Then highlight and select SET CONFIG On the Set Configuration menu highlight and select DIAG MODE OFF Note Feedback values are approximate Maintenance Calibration Calibrating kV Adjusting kV during Calibration Deactivating the Calibration Session 66 Preva Devices with firmware revision of 5 0 and below will require calibration of the tube current Please contact Progeny at the number listed in the manual for calibration instructions Occasionally it may be necessary to calibrate kilovoltage kV Approximate mA and kV levels can be observed using the Diagnostic Mode feature of the Preva system If the kV needs calibration follow these steps 1 Energize the system Press and hold the Tooth Selector switch and the Patient Size Selector switch for five seconds 3 Select the SET CONFIG option You will see the Set Configuration menu Figure 45 4 Press the down arrow to highlight the DIAGNOSTIC MODE ON option and press Enter You will see the Configure Unit menu Figure 44 5 Press the down arrow to highlight the
68. pivot post so that Horizontal Arm begins to move after the Articulating Arm Figure 29 Tightening the Brake Additional The balance and friction of the Articulating Arm are set initially at the factory Adjustments During the installation process check the balance and friction When moving the Tubehead the Articulating Arm should be steady in all positions and move before the Horizontal Arm If adjustments are necessary follow the adjustment procedures in the Troubleshooting section Note The mechanical adjustments should not be used to compensate for a system that is not properly leveled on the wall 42 Installation Procedures Preva Installing the Control Unit Front Cover and the Operator Panel The Operator Panel can be installed on the Control Unit or remote from the Control Unit Installation of the Operator Panel on the Control Unit may require the purchase and use of the coil cord hand switch option 30 A2040 Important Note In order to comply with the regulations and proper x ray practices the Operator Panel must be located where the operator can view both the patient and the technique factors prior to the exposure On the Control Unit SD QV em Figure 30 Placing the Cover on the Control Unit 43 3 Connect the short cable at point J1 on the Logic Board 30 08160 Feed the cable through the front cover of the Control Unit Place the top of the front cover on the Control Unit and pop the bottom of t
69. r setting the system to use the longer cone 59 Maintenance Preva System Configuration System Configuration Mode About System Configuration Mode Using System Configuration Mode Figure 41 Main System Configuration Menu 60 The Preva Dental X Ray System has a software driven system configuration mode When the Preva is in system configuration mode you can perform the following procedures Adjusting the Display Changing Pre programmed Exposure Settings Changing the Cone Size Showing Current System Configuration Displaying Diagnostic Data To enter system configuration mode press the Tooth Selection and Patient Size Selection buttons on the Operator Panel simultaneously for 5 seconds The display shows the Main System Configuration menu as shown in Figure 41 and the Ready Indicator blinks To select menu items while in system configuration mode use the up and down arrows to highlight a menu option Then use the right arrow button as an Enter button to select the highlighted option When changing presets the right arrow button is also used to select the technique factor After selecting a menu option use the up and down arrows to increase or decrease values MENU OPTIONS CHANGE PRESETS gt CONFIGURE UNIT b EXIT System Configuration Preva Adjusting the Display The Preva Dental X Ray System allows the operator to adjust the display image 1 From the Main System Configuration menu Figure
70. r TP10 for Common Return when measuring DC voltages gt j 29299 ux ii ME tl30d o T mi three 2913 125 6444 Figure 54 Logic Board 30 08160 79 Troubleshooting Preva PROGENY IND mu mi Figure 55 Power Supply Board 30 08041 80 Troubleshooting No X Ray Produced and No Audible Exposure Indicators Figure 56 Logic Board 30 08160 81 Preva Two different audible exposure indicators are employed within the Preva system One indicator is embedded in the Operator Panel and will initiate when any exposure switch is pressed The second audible indicator initiates when the Logic Board begins the exposure sequence During normal operation first the Operator Panel indicator will sound followed shortly thereafter by the Logic Board indicator It is important to recognize the sequence for troubleshooting purposes 1 If the Operator Panel indicator does not sound inspect the condition of any remote exposure switches Substitution is the preferred method to test these switches although a jumper wire can be applied across the contacts of J3 shown in Figure 56 on the Logic Board momentarily to simulate an exposure switch closure 2 Ifthe Operator Display indicator sounds but the Logic Board indicator does not activate observe LED D2 on the Power Supply Board and listen for the relay LS1 to activate on this same board Figure 57 LED D2 should illuminate during the exposure request If not insp
71. ransmitting the feedback signals Connections for this cable begin with controls at J1 of the Power Supply Board and J3 of the Logic Board As shown in Figure 51 an internal set of connections will be accessed below the distal side of the horizontal arm and at the inside top of the Tubehead Yoke The final set of connections is accessed by removing the Pivot Cap located at the attachment point of the Tubehead to the Yoke If D11 on the Power Supply Board is illuminated power supplies are in order and the cable connections are correct place an AC voltmeter across the Tubehead connector J1 white connector on the black and white conductors request an exposure time of at least 1 5 seconds and measure the resulting voltage during the exposure Presence of 130 volts AC will require the replacement of the Tubehead Assembly Absence of 130 volts AC will require re inspection of the interconnect cables for open conductors Troubleshooting Preva Figure 49 Power Supply Board 30 08041 74 Troubleshooting Preva Use TP8 or TP10 for Common Return when measuring DC voltages A r mot ale TP9 24V DC Ur messis NE EE See E SE TTT TP6 kV Program Y CX ue 3 B Nie CEEE E EE a Yubtt e EN Brey Ode 130d TP 48V DC A GC EP F LLL THAGRUG 2913 126 5444 Figure 50 sos Logic Board ECCE biasing 30 08160 J1 Primary Power on 30 08041 J4 Filament Dri
72. re button with the two M5 X 8 mm Phillips pan head screws Route the remote cable through the rectangular hole and the remote exposure cable through the slot in the bottom of the cradle Remove the backing on the remote exposure holder and install the M3 X 12 mm Phillips pan head screw Install on the back of the remote cradle on the left side and tighten the screw ensuring the holder is straight Attach the remote cable to the remote and install the remote to the cradle Attach the cable from the arm assembly to J1 on the power board J4 on the Logic Board and ground wire to the ground lug Attach the cable from the remote to J1 on the Logic Board Route both cables so that they do not interfere with installing the cover Attach the strain relief bracket diagonally across the studs on the chassis Route the power cord through the rubber grommet in the cover and through the strain relief bracket Attach the black wire to L on the power block the white wire to the N on the power block and the ground wire to the ground lug Install the Hayco into the strain relief Plug in the power switch to the two connectors near the power block Reinstall the cover with the five M3 X 5 mm Phillips pan head screws and tighten Install the Velcro strap around the pivot joint at the column and the loose ends around the pivot joint at the Tubehead Install handle on upper support bracket of the remote with two M6 X 20 mm Socket h
73. reach Model 30 A0010 Control 30 A2073 Extension Arm Short Catalog P7015 56 inch reach Model 30 A0010 Control 30 A2074 Extension Arm Compact Catalog P7017 MG Mobile Model 30 A0010 Control Class lb Reference The following regulatory documents apply Numbers to UL 2601 1 mE IEC 60601 1 3 Conformity IS IEC 60601 2 7 Declared IEC 60601 2 28 IEC 60601 2 32 Medical Device Directive ISO 13485 FDA 510K File Number K043092 Declaration Midmark Corporation declares that the products described herein meet all the applicable Essential Requirements of the EC Medical Device Directive 93 42 EEC in Annex I For Class llb products described herein the product is manufactured inspected tested and released in accordance with the approved quality assurance system established in accordance with ISO 13485 and Annex Il of the EC Medical Device Directive under the Supervision of the SGS United Kingdom Ltd a Notified Body Contact Technical Support techsupport progenydental com 11 Installation Options Preva Authorized Representatives North America Europe Safety Radiation Safety Electrical Safety Explosion Safety 12 Midmark Corporation 675 Heathrow Dr Lincolnshire IL 60069 Phone 888 924 3800 Fax 847 415 9801 CE Partner 4U Esdoornlaah 13 3951DB Maarn The Netherlands Phone 31 343 442 524 Fax 431 343 442 162 Only qualified and authorized personnel may operate this equipment observing all laws and regu
74. ring the installation process check the balance Adjustment and friction When moving the Tubehead the Articulating Arm should be steady in all positions and move before the Horizontal Arm Note The mechanical adjustments should not be used to compensate for a system that is not properly leveled on the wall Tubehead The movement of the Tubehead is set in the factory and cannot be adjusted Movement Horizontal Arm Note If performing this adjustment as part of the initial installation of the Preva i omit steps 1 3 ojusumen 1 Remove the screw from the Control Unit front cover 2 Carefully remove the front cover Note If the Operator Panel is installed on the Control Unit carefully keep the Operator Panel together with the front cover 3 Unplug the cable connectors and set the front cover aside 4 Locate the brake assembly at the top of the Control Unit The brake assembly has a screw on either side of a clamping bar over the Horizontal Arm pivot post 5 Using a 4 mm Allen wrench as shown in Figure 71 tighten the screws equally to apply adequate braking to the pivot post so that Horizontal Arm begins to move after the Articulating Arm 6 Replace and re connect the front cover of the Control Unit Replace the Figure 71 Tightening the Brake 101 screw on the front cover Maintenance Preva Adjusting the Locate the friction assembly screws Using a 3 mm Allen wrench as shown in Horizontal Arm Figure 72 tighte
75. ription Control Unit Tubehead Articulating Arm Horizontal Arm Cone Remote Control Mobile Unit Installation and Service I The Preva Dental X Ray System is a state of the art high frequency intra oral x ray machine The Preva consists of five components as shown in Figure 1 Component Diagram the Control Unit the Tubehead the Articulating Arm the Horizontal Arm the Cone and the Remote Control option The Control Unit provides for the input power connection and control of the Tubehead and Operator Panel It provides automatic line voltage compensation kVp control and exposure time control The Control Unit consists of the mounting base and Operator Panel The Tubehead contains the x ray tube high voltage circuit and Cone The Tubehead is shipped already assembled to the Articulating Arm Note There is a small hole in the plastic handle covering the back of the Tubehead Under no circumstances should this hole be blocked as it provides an air vent to allow the Tubehead oil to expand and contract as the unit is operated The Articulating Arm provides the articulation support for the Tubehead and the reach and coverage of the Tubehead to the patient The Articulating Arm allows smooth movement for precise positioning and does not drift or vibrate when left in position The Horizontal Arm helps provide the necessary reach for the Preva The Horizontal Arm pivots smoothly around a shaft inserted in the top of the
76. roper stored energy for an exposure If this indicator is not illuminated it will be necessary to replace this board On the Logic Board measure voltages at TP1 8 1V and TP9 24V Use TP8 or TP10 as Common Return If any of these voltages are not present after power is applied next check voltages on the Power Supply Board On the Power Supply Board use TP2 as a common test point to check TP1 24 volts DC and TP3 8 1 volts DC Then use TP5 as the common return to check TP4 for the presence of 12 volts DC as shown in Figure 49 Should any of these voltages not be present replace the Power Supply Board If each voltage is present check other voltages on the Logic Board On the Logic Board measure between TP8 or TP10 the Common Return and TP6 kV Program This voltage should be between 3 and 4 volts DC If this voltage is not present replace the Logic Board If this voltage is correct inspect the condition of the ribbon cable between the Power Supply Board and the Logic Board If the cable is undamaged and seated properly replace the Logic Board Check the condition of the cables between the Control Unit and the Tubehead assembly If no x ray occurs and no errors are displayed the problem may lie within the conductors of the white connector which is primary power to the Tubehead Assembly If no x ray occurs and the attempt is accompanied by a snap sound the problem may lie with the conductors of the black connector which is t
77. row to highlight the Exit option and press Enter This displays the Menu Option screen 6 Press the down arrow to highlight the Exit option and press Enter This returns the system to operational mode DU SI mx o9 T Maintenance Preva Troubleshooting Electrical Performance Issues Contact Support General Information 67 Questions should be directed to Progeny Technical Support Phone 888 924 3800 Fax 847 415 9801 techsupport progenydental com Test Equipment Electrical measurements require specific meter test probes Use small test clips such as Pomona Electronics Minigrabber Test Clip Model 6248 or Radio Shack Mini Hook Adapters catalog 270 334 or the equivalent Replacement Parts e Kit Power Supply Board 30 A2155 e Logic Board 30 08160 e Operator Panel Board 30 08054 e 25 foot Communication Cable E1 13003 e 6inch Communication Cable E1 13004 e Rocker Switch E1 19026 e Yoke Cable 30 08071 e ubehead Assembly 30 A1027 e Ribbon Cable 30 08072 Note e f you replace the Operator Panel Board 30 08054 you must re program any customized technique factors as explained in the System Configuration section of this manual e lf the you replace the Logic Board 30 08160 or the Tubehead and the firmware revision is 5 0 or less you must recalibrate the system Please contact Progeny Technical Support for instructions CAUTION The Preva system has the capacity to store electrical energy during operation a
78. rt Exposures Regardless of Selected Exposure Time 72 3 4 O Preva Check if both audible indicators operate Check the Operator Panel first and check the Logic Board second If only the Operator Panel indicator works check if diode D2 on the Power Supply Board and D11 on the Logic Board illuminate during the exposure request If D2 and D11 do not illuminate this indicates that the x ray backup conductors in the CAT 5 communication cable are open Connect a substitute communication cable to test for this condition If the symptom persists contact Technical Support If the ribbon cable is open between the Logic and Power Supply Boards replace the cable This error can be caused by a high voltage breakdown in the head and is characterized by a snapping or popping noise within the Tubehead mod ri a Inspect the condition of the feedback cable Inspect the condition of the communication cable If used inspect the remote exposure switch wiring for a loose connection Refer to the High Voltage Breakdown information in the Troubleshooting section for detailed instructions Replace the Power Supply Board This condition will exist if the kV or mA produced is out of tolerance To address this issue 1 2 3 Inspect the condition of the high voltage circuit by operating the Preva in the diagnostic mode Confirm incorrect kV or mA Inspect the Preva s internal horizontal and art
79. s 1 and 3 carry the line voltage after the Line Switch Voltage at the input side of the switch but not at the output requires replacement of the Line Switch E1 19000 3 Inspect the condition of the communication cable between the Logic Board and the Operator Panel Progeny includes two communication cables with each Preva system Should the installed communication cable be suspect temporarily substitute the other cable as a test tool 4 If the power switch is on and there is no operator display and a faint buzzing sound is also detected check the ribbon cable installed between the Power Supply Board and the Logic Board If the cable is not properly seated reinsert it If itis damaged replace the cable 5 On the Logic Board measure voltages at TP1 8 1V and TP9 24V Use TP8 or TP10 as Common Return If any of these voltages are not present after power is applied next check voltages on the Power Supply Board 6 Onthe Power Supply Board use TP2 as a common test point and check TP1 24 volts DC and TP3 8 1 volts DC as shown in Figure 46 Then use TP5 as the common return to check TP4 for the presence of 12 volts DC Should any of these voltages not be present replace the Power Supply Board If each voltage is present inspect the condition of the ribbon cable between the Power Supply Board and the Logic Board If the cable is undamaged and seated properly replace the Logic Board 7 Ifthe power supply voltages are present and th
80. s heard oelect the longest exposure time possible using the up and down arrows Initiate an exposure but release the Exposure button after a brief period of time before the timer terminates the exposure Verify that the display indicates Pre termination Error and returns to normal operating mode If a coil cord hand switch is used inspect the switch housing and coil cord for damage or wear Replace if evidence of damage is present Make certain that the user of the system has received the User Manual Checking System Functions Preva Tube Seasoning Procedure Note Do not use this procedure if you have just replaced the head Refer to Page 66 for the Calibration procedure X ray tubes that sit dormant for several months can become electrically unstable To remedy this condition it is recommended you perform a new tube seasoning procedure This process establishes stable high voltage operation and will ultimately extend the life of the tube Repeat this procedure before returning to normal operation any time the system has been unused for more than two months Verify system operation Energize the system Select 60 kilovolts 7 milliamperes and the exposure time of one second Make five exposures at this level observing the normal cooling time Select 65 kilovolts 7 milliamperes and the exposure time of one second Make five exposures at this level observing the normal cooling time Select 70 kilovolts 6 milliamperes
81. signal is no longer heard Releasing the Exposure button immediately terminates the x ray exposure CO lA E FF FER Up Down Arrows Right Arrow Anatomical Selector II eececesossococvessoosspeneos Digital Sensor Receptor Selector E F Speed Film ICD rss ss ss Patient Selector in B B Speed Fm CA A AAA Ready Light CANA LEE Exposure Button Pewee ANA Radiation indicator Maintenance Preva Checking System Functions The following checks must be performed to complete the installation of the Preva Dental X Ray System and as part of the recommended maintenance as indicated in the User Manual Failure to perform these checks may result in an installation that does not comply with U S Radiation Performance Standards 21 CFR Subchapter J CAUTION If the Preva Dental X Ray System does not perform the functions below advise the owner that the system is not to be used See the Troubleshooting section of this manual or contact Progeny s Technical Support 49 Checking System Functions Preva System Function Checklist Wall Mounting Labels Tubehead Tubehead Rotation Operator Panel Controls Exposure Button Exposure Indicators Premature Termination Coil cord Hand Switch Option User Information 50 Ensure that the wall support is adequate and that the system is properly mounted to the wall Ensure that all certified components bear labels that includ
82. t the preset to change The display shows the current values for the preset 3 Use the right arrow button to display the technique factor to change 4 Use the up and down arrow buttons to set the value for the selected technique factor and preset 5 Repeat steps 2 4 to change additional presets 6 When you have completed all changes press the Tooth Selection and Patient Size Selection buttons simultaneously for 5 seconds to record the change 62 System Configuration Preva Recall Presets 1 Toreturn all presets to factory defaults select RECALL PRESETS from the Preset Options menu The menu will ask you to confirm your choice 2 Select YES using the up arrow button and return all presets to factory default settings Selecting YES will erase any custom presets that have been set up 3 Select NO using the down arrow button and retain current presets PRESET OPTIONS EDIT PRESETS gt SELECT RECEPTOR RECALL PRESETS Figure 43 Preset Options EXIT Menu Showing Current System Configuration The Preva Dental X Ray System displays the current system configuration This display is informational only 1 From the Main System Configuration menu Figure 41 select CONFIGURE UNIT You will see the Configuration menu shown in Figure 44 2 Select SHOW CONFIG The display will show e Current software version e Cone size e Diagnostic mode on or off 3 Press any button on the Operator Panel to return to the Configurat
83. tachment point of the Tubehead to the Yoke 3 If the cabling is found acceptable select 1 5 seconds of exposure time and placing a DC voltmeter on TP8 or TP10 the Common Return on the Logic Board measure the feedback values at TP4 mA Monitor and TP3 kV Monitor as shown in Figure 59 Look for the following values e P4 mA Monitor This voltage should be between 1 5 and 3 5 volts DC during exposure attempts The voltage should not oscillate between 1 5 and 3 5 instead the measurement should come to a specific value and stabilize Oscillating values or absent values will indicate the need to replace the Tubehead Assembly 4 TP3 kV Monitor This voltage should be between 3 and 4 volts DC during exposure attempts The voltage should not oscillate between 3 and 4 instead the measurement should come to a specific value and stabilize Oscillating values or absent values will indicate the need to replace the Tubehead Assembly If the feedback voltages are present and stable replace the Logic Board 83 Troubleshooting Preva PROGENY ING me taht pai me Figure 58 Power Supply Board 30 08041 84 Troubleshooting Incorrect kV 85 Preva At times non invasive measurement of an otherwise fully functional system indicates that kilovoltages may be incorrect Kilovoltage is controlled by the microprocessor and is not adjustable The Preva generates kilovoltage by first establishing a reference voltage and then comparing t
84. tall the Wall Plate 30 A2042 N Remove Control 1 Open the shipping carton and locate the Control Unit in the first level of the Unit Front Cover carton 2 Remove the socket flathead screw from the front cover of the Control Unit 3 Carefully remove the front cover 4 Place the front cover and the screw in a safe location for later reassembly Mount the 1 Select the 5 16 inch 34 inch long socket cap screws and washers Control Unit 2 Putthe upper screw and washer through the upper mounting hole of the Control Unit 3 Place the Control Unit on the wall and loosely tighten the upper screw 4 Putthe lower screw and washer through the lower mounting hole of the Control Unit and loosely tighten Be sure that the power wire extends through the opening at the bottom of the Control Unit 5 Placea level on the Control Unit bearing parallel to the wall Level the Control Unit 6 Tighten the upper and lower screws 7 After the Preva is installed slide covers on the wall plate and screw on 30 Installation Procedures Preva Installing the Horizontal Arm and Brake Assembly Installing the 1 Locate the Horizontal Arm in the top level of the shipping carton Horizontal Arm 2 Remove the Horizontal Arm from the shipping carton Do not remove the and Brake cardboard tube around the wires bot remove the red tag Insert the cardboard tube snugly into the shaft of the Horizontal Arm Assembly Note Do not lubricate the shaft of
85. te Mounting Holes Reinforce Metal Stud Wall Assembling and Mounting the Support Plate 30 A2043 29 The mounting template is a guide for locating where to drill the holes used to mount the wall plate and support plate to the wall Carefully placing the mounting template on the wall will help ensure correct installation of these plates and hence of the Control Unit 1 Using a stud finder locate the center of the stud on which the Control Unit will be mounted 2 Place the mounting template for the dual stud mount on the wall with the lower mounting holes 40 inches above the floor 3 Placea level parallel to the vertical lines on the mounting template and adjust the mounting template until it is plumb 4 Tape the mounting template to the wall 5 Using an awl or other sharp object punch through the mounting template to mark the location of the mounting holes 6 Drill inch pilot holes at marked locations 7 Drill 1 inch clearance holes 8 Remove the mounting template from the wall and save for future use Filler material is added to the wall to prevent the metal stud wall from being crushed during installation 1 Cutan access hole 6 inches by 10 inches in size between the clearance holes 2 Insert two 4x4 wooden studs in the access hole Attach the studs to the rear drywall surface with drywall screws CAUTION The sheet metal stud wall must be secure to hold a load of 850 ft Ibs 118 kg m In t
86. ted Wall i 1 Mount Figure 5 Extended Position Wall or Cabinet Mount i 11 75cm see note 2 i see note 3 m 48 39 121 92cm 89cm see note 4 mm note 2 7015 52 1 2 133 cm note 3 7015 56 1 2 143 5 cm 7016 621 2 159 cm 7016 661 2 169 cm 7017 72 1 2 184 cm 7017 76 1 2 194 5 cm 7018 781 2 199 cm 7018 82 1 2 209 5 cm With 12 30cm cone With 12 30cm cone 6 note3 7015 70 3 8 178 5cm 7016 803 8 204 cm 7017 903 8 229 5 cm 7018 963 8 244 5 cm Installation Options Preva 18 45 72cm with Compact Horizontal Arm 14 28 71 12cm with Short Horizontal Arm 24 38 96 52cm with Long Horizontal Arm 34 m 121 92cm 4 2 54cm Figure 6 i Retracted ROS enone 1 2 Cabinet Outline Cabinet Mount 1 27cm Installation Options Preva 2 56 4 1 12 27cm 143 26cm 23 58 42cm y EP 149 9cm 56 143 26cm 57 1 J 145 03cm 35 9 J 91 18cm Figure 7 AJN Mobile Unit a A 4 99 Extended 182 63cm Installation Options Preva Environmental Factors Use The Preva Dental X Ray System is intended for indoor use for normal dental applications at temperatures in the range 50 F 95 F 10 35 C and at a maximum altitude of 12 000 feet Humidity should not cause condensation to form on the unit Storage Storage temperature should not exceed the rang
87. tends through the opening in the wall plate 3 Level the wall plate 4 Tighten the lag screws to 14 to 18 ft Ibs CAUTION Do not over tighten the lag screws Over tightening the lag screws will damage the wooden stud and reduce the holding force 27 Installation Procedures Figure 15 Mounting Plate for Dual Stud Wall Mounts Remove Control Unit Front Cover Mount the Control Unit 28 ms N Preva Open the shipping carton and locate the Control Unit in the first level of the carton Remove the Phillips screw from the front cover of the Control Unit Carefully remove the front cover Place the front cover and the screw in a safe location for later reassembly Select the 5 16 inch 34 inch long socket cap screws and washers Put the upper screw and washer through the upper mounting hole of the Control Unit Place the Control Unit on the wall and loosely tighten the upper screw Put the lower screw and washer through the lower mounting hole of the Control Unit and loosely tighten Be sure that the power wire extends through the opening at the bottom of the Control Unit Place a level on the Control Unit bearing parallel to the wall Level the Control Unit Tighten the upper and lower screws After the Preva is installed slide covers on the wall plate and screw on Installation Procedures Preva Installing the Control Unit on a Metal Stud Wall Mark and Drill Wall Plate and Support Pla
88. the inside and connect it to the Operator Panel If the cable is routed on the surface of the wall it should enter the wall mount cover through the notch on the left of the power switch Connect the cable conductors on he opposite end of the cable to terminal block J1 on the PCB in the switch enclosure as shown in Figure 37 Make sure the two gray wires from the pushbutton switch are connected to terminals 1 and 2 of J2 ocrew the inner section of the enclosure to the junction box using the two screws provided If the cable is routed on the surface of the wall make sure it sits in the notch on the bottom of the enclosure Confirm that no wires are being pinched between the junction box and the enclosure Hook the outer section of the enclosure and fasten the two pieces at the bottom with the 6 32 x 5 16 screw Optional Installation Procedures Preva Installing the Dual Switch Figure 38 Parallel Switch Configuration 57 Note This configuration uses two cables One connects the Preva to the first switch and the other connects the first switch to the second switch Route one cable from the Preva to the first switch location either through conduit or on the surface of the wall Route the other cable from the first switch location to the second switch location either through conduit or on the surface of the wall Thread the first cable end with the handset connector through the opening in the wall mount cover from the inside and
89. ttom of cradle NOTE Allow a few coils of slack inside for strain relief See Fig 21B Attach the cradle with supplied hardware See Fig 21C FIG 21A FIG 21B FIG 21C 21 Connect Cat5 cable and remote switch cable to the Operators Panel See Fig 22 Mount the Operators Panel into cradle FIG 22 22 Install the mobile unit handle with the supplied hardware See Fig 23 FIG 23 127 Appendix A Preva 23 Attach the remote switch holster by removing the adhesive backer and attaching to the frame See Fig 24 FIG 24 128 Appendix A Preva E Sex Page 40 for the Are and Head iN Assembly Parts List E MM Figure 85 Mobile Unit Assembly Mobile Assembly Parts List Item Part Number Description Qty 1 30 A2093 Velcro Stra 1 2 H1 15 m16020 10 Screw 2 3 30 A21 11 Mobile Stand Handle w Grips 1 4 30 A2076 Operator Panel Vet see component breakdown 1 on page 39 5 H1 61 M13008 01 Screw 2 6 30 M3010 Cradle 1 7 E1 13029 8 Cond RJ45 to RJ45 2m 1 8 30 M0045 Column 1 9 H1 61 M05008 01 Screw 5 10 H1 P2 m04000 01 Washer 5 11 30 M0046 Column Screw 1 12 30 S0036 Caster Swivel w Brake 1 13 30 S0035 Caster Swivel 2 14 30 A2078 Mobile Stand Base 2 15 30 A1032 Control see component breakdown on page 38 1 16 30 08098 Switch Asm Preva Mobile Stand 1 17 30 A2040 Remote Control Switch Asm 1 18 H1 63 m09008 17 Screw 2 19 30 P0017 Access Cover 1 20 30 A2109 Brake 1 21 E1 13028 Lin
90. ve and Feedbacks on 30 08043 J7 White Connector J5 Black Connector Figure 51 Interconnect Cable Locations 75 Troubleshooting No mA Produced 76 Preva On the Logic Board measure voltages at TP1 8 1V and TP9 24V Use TP8 or TP10 as Common Return If any of these voltages are not present after power is applied next check voltages on the Power Supply Board On the Power Supply Board use TP2 as a common test point to check TP1 24 volts DC and TP3 8 1 volts DC Then use TP5 as the common return to check TP4 for the presence of 12 volts DC as shown in Figure 53 Should any of these voltages not be present replace the Power Supply Board If these voltages are correct next check voltages on the Logic Board On the Logic Board measure between TP8 or TP10 the Common Return and TP2 mA Program This voltage should be between 1 and 2 volts DC If this voltage is not correct replace the Logic Board If this voltage is correct select 1 5 seconds of exposure time measure across pin 1 and pin 2 of the Logic Board at the connector J3 During exposures this value should be 24 volts AC Also measure across pin 2 and pin 3 of J3 This value should be 24 volts AC If either voltage is missing replace the Logic Board If these voltages are present measure for the same values at the Tubehead Assembly at the connector J5 black on the blue and gray conductors and the blue and brown conductors If the voltages are not prese

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