JB 70 User Manual
Contents
1. progeny A Midmark Company JB 70 Dental X Ray System User Manual 00 02 1568 Rev U C ECN P3250 0120 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 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 JB 70 Your dealer will assist you in placing the JB 70 in operation The JB 70 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 JB 70 g progeny A Midmark Company More Than Imaging Excellence Midmark Corporation 675 Heathrow Drive Lincolnshire Illinois 60069 U S A Phone 888 924 3800 Fax 847 415 9801 progenydental com y2. he JB 70 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 Electrical Safety equipment Explosion This equipment must not be used in the presence of flammable or potentially Safety 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 g progeny 2 A Midmark Company General Information JB 70 Product Description Control Unit Tubehead Articulating Arm Horizontal Arm Cone Installation and Service The JB 70 Dental X Ray System is a state of the art intra oral x ray machine The JB 70 consists of five components as shown in Figure 1 Component Diagram the Control Unit the Tubehead the Articulating Arm the Horizontal Arm and the Cone The Control Unit provides for the input power connection and control of the Tubehead and Operator Panel lt 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 transformer 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 Tube
3. TIMES leale Lasa 17 TABLE FOR OFFICE USE scalo lea ibis ae 19 PreSer NIRE EE 19 Changing Programmed Exposure TIMES e 20 SPeclicalo ncc d T cmm 21 JB 70 Dental X RIV SSN cale leali 21 General Information JB 70 General Information Indications for Use The JB 70 Intraoral Dental X Ray is to be used as an extraoral source of x rays in Dental radiography Contraindications none Warnings Precautions Radiation Safety Only qualified and authorized personnel may operate this equipment observing all laws and regulations concerning radiation protection e The operator at all times must remain 6ft 2m from the focal spot and the X ray beam for operator protection e Full use must be made of all radiation safety features on the equipment e 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 e 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 e Before cleaning or disinfecting this equipment must always be disconnected from the main electrical supply e
4. Y WERSRERBEREBUERBERERAREBSZAREBERBERSAREAT eda Ao AAA na mu mai PEAD Component Cone i i Tubehead Diagram g progeny 4 A Midmark Company General Information JB 70 Compliance with Applicable Standards Radiation The certified components of the JB 70 Dental X Ray System comply with Protection Radiation Performance Standards 21 CFR Subchapter J at the time of manufacture The certified components of the JB 70 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 Number and mechanical hazards only in accordance with UL 60601 1 and CAN CSA E181750 C22 2 NO 601 1 M90 and to the following particular standards IEC60601 2 7 IEC60601 2 28 and IEC60601 2 32 EMI EMC IEC60601 1 2 Certified Components 120V System Component Reference Number Tubehead Blue 30 A1005 Tubehead Gray 30 A101 1 Control Unit 30 A0001 Cone 8 in 30 A2016 Cone 12 in 30 A2033 Cone 8 in Rectangular 30 A2041 Cone 60mm 30 A2101 Cone 59mm 30 A2107 Cone 36mm x 46mm 30 A2112 230V System Component Reference Number Tubehead Blue 30 A1007 Tubehead Gray 30 A1016 Control Unit 30 A0003 Cone 8 in 30 A2195 Cone 12 in 30 A2200 Cone 8 in Rectangular 30 A2198 Cone 60mm 30 A2196 g progeny A Midmark Company General Information JB 70 EC Declaration of Conformity Name and Progeny JB 70 Description of Product Catalog 17017 76
5. or contact Technical Support Do not use the system until the problems are resolved g progeny 1 3 A Midmark Company Recommended Maintenance JB 70 System Function Checklist Wall Mounting Indication of Technique Factors Tubehead Tubehead Rotation Operator Panel Controls Exposure Button Exposure Indicators Premature Termination Indicator Optional Coil cord Hand Switch Optional 14 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 include the model and serial number date of manufacture and a statement of certification as noted elsewhere in this manual Verify that the 70 kV 7 mA is legible on the label of the Operator Panel 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 movement 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 B illuminated when the power switch is in the ON po
6. progeny JB 70 g progeny A Midmark Company JB 70 Dental X Ray System User Manual 00 02 1568 Rev T ECN P2966 Midmark Corporation 675 Heathrow Drive Lincolnshire Illinois 60069 U S A Phone 888 924 3800 Fax 847 415 9801 progenydental com Progeny Dental 2003 U S Patents D470237 and D469182 g progeny Table of Contents General rormallolias en tide EM 2 HATT 2 CANE NN Sarre AES 2 Warnings Precautions i 2 Product D CSCHIDUON erstes 3 Compliance with Applicable Standards kerne kk t kst kk r ken er ker kr r ner 5 Certiliee COMponeniSise diede 5 EC Declaration ofGoniomiy cieli 6 Authorized Representatives us urli illusioni 7 Explanation of Symbols on Technical Labels ket kk tek E REE ERE nnn 8 Obiaining Technical SUDpDOLFL noc pas aote ala aaa 8 Operating the JB 70 Dental X Ray SysteM i 9 Operator Panel Contool lalla 9 Taking anA Ray ESTEE Tn 11 Using the 12 MGone S0 A2200 e cistitis lt cid 11 Recommended Maintenance ii 12 REMEN EN ANE ae 12 Cleaning and DiSiMS cin usa Ea E Peto nahe Ex mon Pto xen dex ea ER Kes ti ees 12 Checking SY SEN FI NGIONS ape eg 13 oystem FuticHon GHECKISE iris iii 14 SOWING Pernormance ls SUS se 16 Performance SSUeS eet d 16 ObiainingrTeehnnical SUNDO se 16 Setting Pre programmed Exposure TIMESs i 17 Power SAS UU m 17 Pre programmed Exposure
7. to the storage position Note Be careful not to bang the Tubehead on the wall when returning it to the storage position Using the 12 in Cone 30 A2200 The JB 70 is set at the factory for use with the standard supplied 8 in 20 cm cone A 12 in 30 cm long cone 30 A2033 is available Using the long cone requires the use of longer exposure times which can be programmed into the system by changing an internal electrical setting Only a qualified service agent should preform this modification Contact your service agent to make the change g progeny 4 4 A Midmark Company Recommended Maintenance JB 70 Recommended Maintenance Regular Maintenance In the interest of equipment safety a regular maintenance program must be established This maintenance program should consist of cleaning and disinfecting as well as annual system function checking It is the owner s responsibility to arrange for this service and to assure that the personnel performing this are fully qualified to service Progeny Dental x ray equipment Cleaning and Disinfecting Employ personal protective equipment to prevent the spread of infections Clean the outside of the system a damp towel or non alcohol based disinfectant Cleaning CAUTION Disinfecting e Do not allow liquids to drip into the system electronics e Do not spray cleaner or disinfectant directly onto the machine e Protect the system from contamination using barriers available from dental dist
8. Image Receptor Type is illuminated To change the Image Receptor type press the Image Receptor Type button until the correct Image Receptor Type is selected 4 Verify that the system is set for the appropriate Patient Size The icon for the currently selected Patient Size is illuminated The change the Patient Size press the Patient Size button until the correct Patient Size is selected 5 Verify that the unit is set for the Tooth to be imaged The icon for the currently selected Tooth is illuminated To change the Tooth Selection press the Tooth Selection button until the correct Tooth is selected 6 If desired the Exposure Time Selection up or down buttons can be used to change the pre set exposure time Note When the Time Selection buttons are used the Tooth Selection Image Receptor Type and Patient Size buttons are turned off 7 Position the Tubehead to the patient using standard accepted positioning procedures 8 Press and hold the Exposure button until the audible signal is no longer heard and the Radiation Indicator is no longer illuminated Releasing the Exposure button or coil cord hand switch at any time will immediately terminate the exposure Note When using the coil cord hand switch it is recommended that the operator exit the operatory if possible Note In order to comply with regulations and good safety practices the technique factors must be visible to the operator from the remote location 9 Return the Tubehead
9. SRPD Digital D Speed 01 C2 m E F Speed 99094000490004900 UO RX CILALRCLIIZIIZIZZIIIZZIIZIIIZZTCTICZEZELCIN Patient Size 0940009400040004000400094400440004004400040044s 0 LIL 20 ALITO SSSSPSSSPCee see SEES SEESSEEBEGEEBGEEBEE Ready Indicator Radiation Indicator Exposure Button Figure 2 JB 70 Operator Panel Exposure Time The JB 70 Dental X Ray System has 30 pre programmed exposure times The Selection exposure time that is used when taking an x ray is determined by the combination of the Tooth Selection Image Receptor Type and Patient Size that is selected on the Operator Panel The pre set exposure times can also be adjusted using the up and down Exposure Time arrows e Fora table of the pre programmed exposure times set at the factory refer to the Pre programmed Exposure Times table later in this manual e Fora procedure for modifying pre programmed exposure times refer to Changing Programmed Exposure Times later in this manual g progeny 9 A Midmark Company Operating Instructions JB 70 Exposure Button The Exposure button is used to initiate an x ray exposure For a complete Ready Indicator Radiation Indicators 10 exposure the button must be pressed and held until the Radiation Indicator no longer illuminates and the audible signal is no longer heard Releasing the Exposure button immediately terminates the x ray exposure CAUTION Releasing the Exposure button prior to the completion of t
10. d in the Unfors manual under extended functions for kVp and time measurement Using the Radcal 4082 See section labeled Dental Operation in the meter manual Turn the meter on using the DENT button and scroll to threshold setting 5 Using this setting the measurements should allow for preheat bias offset g progeny A Midmark Company Specifications JB 70 Tube Rating Charts Anode Cooling Curve CO O Thousands of H amp 3 4 5 6 Time in Minutes gt I jum O Y Lo c 1 Y O X 1 5 I Lo eb ha O o Tir in Minutes g progeny 2 3 A Midmark Company
11. e by which the user may change If the suggested exposure time does not produce the density desired use table on next page to write the best time for this office Bitewing 0 233 0 733 0 333 0 417 0 200 0 280 0 880 0 400 0 500 0 240 E g progeny 1 8 A Midmark Company Specifications JB 70 TABLE FOR OFFICE USE Preset Times a Digital Receptor D speed Film E F Speed Film m L H 4 Lower Molar Upper Molar n g progeny 1 9 A Midmark Company Specifications JB 70 Changing Programmed Exposure Times The JB 70 Dental X Ray System has a programming mode during which the exposure times can be modified Note When the system is in programming mode it ignores the x ray exposure circuit such that when the Exposure button is pressed no x ray is made When in programming mode pressing the Exposure button stores the current Operator Panel settings 1 To enter programming mode press and hold the Image Receptor Type Tooth Type or patient size buttons while turning ON the power The Ready Indicator will flash to indicate that the system is in programming mode 2 Select the combination of technique factors whose exposure time is to be changed a Use the Image Receptor Type button to select the receptor type b Use the Tooth Selection button to select a tooth C Use the Patient Size button to select the patient size 3 Use the Time Selection buttons to change the exposure time for the combinat
12. he x ray exposure will result in an incomplete exposure of the image This may require the operator to re take the radiograph When a premature release of the Exposure button occurs the system will flash the time display on and off until the operator presses either the UP or DOWN arrow key next to the time display Normal operation will then resume The Ready Indicator illuminates when the system is ready to make an exposure Immediately after an exposure the Ready Indicator flashes until the x ray tube cools down sufficiently to make the next exposure When the Ready Indicator is flashing no exposure can be made The JB 70 has a visible and an audible Radiation Indicator When an exposure is in progress the Radiation Indicator on the Operator Panel is illuminated and a audible tone is heard The exposure is complete when the Radiation Indicator is extinguished and the audible tone is no longer heard g progeny A Midmark Company Operating Instructions JB 70 Taking an X Ray 1 Turn the power switch located on the base of the Control Unit to the On position The Ready Indicator on the front of the Operator Panel will light 2 Exposure time can be selected by either using the pre programmed exposure times or by simply adjusting the time manually up or down to the desired time If selecting the time manually skip steps 3 5 3 Verify that the unit is set for the correct Image Receptor Type The icon for the currently selected
13. head 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 nat drift or vibrate when left in position The Horizontal Arm helps provide the necessary reach for the JB 70 The Horizontal Arm pivots smoothly around a shaft inserted in the top of the 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 three lengths providing reaches of 56 66 and 76 inches The Cone establishes the distance from the x ray tube to the patient s skin It provides positioning assistance and collimates the x ray beam to within a defined circle at its end The JB 70 is shipped with the standard 8 inch Cone attached to the Tubehead A 12 inch Cone 30 A2200 can be ordered as an option Eight and 12 rectangular cones available The JB 70 Dental X Ray System should only be installed and serviced by approved dealer personnel Contact Progeny A Midmark Company at 888 924 3800 if you need assistance locating an approved dealer g progeny A Midmark Company General Information JB 70 cunsasazessaszenesesesezonete KP pe Articulating Arm Figure 1
14. inch reach 120Volt for gray unit 1701 7G Model 30 A0001 Control 120Volt 30 A2025 Extension Arm Long Catalog 17016 66 inch reach 120Volt gray 17016G Model 30 A0001 Control 120Volt 30 A2034 Extension Arm Short Catalog 17015 56 inch reach 120Volt gray 17015G Model 30 A0001 Control 120Volt 30 A2038 Extension Arm Compact Catalog 17027 76 inch reach 230Volt gray I7027G Model 30 A0003 Control 230Volt 30 A2025 Extension Arm Long Catalog 17026 66 inch reach 230Volt gray 17026G Model 30 A0003 Control 230Volt 30 A2034 Extension Arm Short Catalog 17025 56 inch reach 230Volt gray 17025G Model 30 A0003 Control 230Volt 30 A2038 Extension Arm Compact Class Ilb Reference The following regulatory documents apply Numbers to ed re 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 K020070 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 g progeny 6 A Midmark Company General Infor
15. ion Focal Spot Automatic Cooling Time Leakage Technique Factors Target Angle Operating Temperature Storage Temperature Maximum Altitude Cone Focal Length Diameter of X Ray 21 120 VAC 10 50 60 Hz 230 VAC 10 50 60 Hz Max current 10 amps 70 KVp 10 7 MA 2 MA 50 ms through 1 65 seconds for 60 Hz operation 60 ms through 2 0 seconds for 50 Hz operation 34 ms 8 inch 20 cm 12 inch 30 cm 1 7 mm Aluminum equivalent at 70 kVp 2 mm Aluminum equivalent 70 kVp 0 7 mm IEC 336 30 times the exposure time wait before the next exposure can begin 0 25 mA at 70 kVp 20 degrees 50 F 113 F 10 C 45 C 31F 150 F 35 C 66 C 12 000 ft 8 inch 20 cm Round or Rectangular 12 inch 30 cm Round or Rectangular 2 7 inch 6 9 cm at the end of the Cone g progeny A Midmark Company Specifications Measurement Bias 22 JB 70 A filament warm up time of 0 217 seconds precedes each exposure During this time a very low level of radiation is produced The peak tube potential varies during the filament warm up from approximately 60 kVp to 85 kVp The amount of radiation produced during this time is very small and is not included in the kVp measurement or the exposure time measurement The reason for this is that radiation meters will use the average peak kVp seen even when extremely low amounts of radiation are produced Also the time for preheat to complete does not c
16. ion of tooth image receptor type and patient size Note When the Time Selection buttons are used the Tooth Selection Image Receptor Type and Patient Size buttons are turned off 4 After the exposure times have been set press the Exposure button to store the exposure times 5 Repeatsteps 2 and 4 until exposure times have been set for all combinations of image receptor tooth and patient size 6 When the exposure times have been stored power off the system To return the system to normal operational mode power it on without holding any selection buttons a ALA ALA ALA LALA LALA AE LA LL LALALA EIERE nata E Exposure Time Selection lt Time Panel tanenanennnannnannnennnesnnennnennvennnenneen ne MINE A geggeai Tooth Selection oa EE e S S E 0 LJ E y i Image Receptor Type M noennnonnnennnonnsennnsvnnannnevnnannnennnaen s id f y Patient Size s i dr J ene o y Exposure Button b ff Figure 3 EG Exposure Time Selection Buttons g progeny 20 A Midmark Company Specifications JB 70 Specifications JB 70 Dental X Ray System The following specifications contain information required to be provided to the user per Federal Regulation 21 CFR Line Voltage for Operation Line Load Maximum Rated Tube Potential kVp Accuracy Tube Current Exposure Time Selections Timer Accuracy Source to Skin Distance Minimum Half Value Layer Minimum Inherent Filtrat
17. mation JB 70 Contact Technical Support techsupport progenydental com Authorized Representatives North America Midmark Corporation 675 Heathrow Dr Lincolnshire IL 60069 Phone 888 924 3800 Fax 847 415 9801 Europe CE Partner 4U Esdoornlaah 13 3951DB Maarn The Netherlands Phone 31 343 442 524 Fax 31 343 442 162 g progeny 7 A Midmark Company General Information JB 70 Explanation of Symbols on Technical Labels Type B Protection against electric shock IEC 60601 1 1988 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 gt lt p gt Mains HOT WIRE Mains NEUTRAL WIRE Earth Ground ip F Obtaining Technical Support Contact Midmark Corporation 675 Heathrow Dr Lincolnshire IL 60069 Phone 888 924 3800 Fax 847 415 9801 g progeny A Midmark Company Operating Instructions JB 70 Operating the J B 70 Dental X Ray System Operator Panel Controls PROGENY A Exposure Time Selection amp Time Panel 1 V JB 70 Incisor Bicuspid Bitewing Lower M olar eaurbnpeceavbeceuvsbPeCaUPbPcCUuHEUU Ceu cCuu cCu ecCuu eceuuvTseusTSu seen Upper M nlar Tooth Selection ELTELT aro cn oa a n PaeaPPAPPOSPPGURPOURPOGURPOSRPOSRPO
18. ns are those that were in use when the system was last powered off Pre programmed Exposure Times The table below shows the pre programmed exposure times for each combination of Tooth Image Receptor Type and Patient Size on the Operator Panel These exposure times can be modified using the procedure that follows the table Times for 8 inch 20 cm Cone in Seconds 60 Hz 50 Hz Times in Parentheses Digital Receptor Receptor D speed Fil E F E Speed Film Film oe Tooth Selection or il mi wi o i 0 100 0 050 0 150 0 183 0 100 0 120 0 060 0 180 0 220 0 120 Bicuspid 0 133 0 067 0 150 0 183 0 100 0 160 0 080 0 180 0 220 0 120 Lower 0 100 0 050 0 167 0 200 0 117 Molar 0 120 0 060 0 200 0 240 0 140 0 167 0 083 0 200 0 233 0 133 0 200 0 100 0 240 0 280 0 160 Bitewing 0 100 0 050 0 167 0 200 0 117 0 120 0 060 0 200 0 240 0 140 g progeny 4 7 A Midmark Company Specifications JB 70 Times for 12 inch 30 cm Cone in Seconds 60 Hz 50 Hz Times in Parenthesis D speed Film E F Speed Film H pda i 0 233 0 600 0 300 0 367 0 183 0 280 0 720 0 360 0 440 0 220 Bicuspid 0 300 0 600 0 300 0 367 0 183 0 360 0 720 0 360 0 440 0 220 Lower 0 233 0 733 0 333 0 417 0 200 Molar 0 280 0 880 0 400 0 500 0 240 Upper 0 367 0 833 0 417 0 467 0 233 Molar 0 440 1 00 0 500 0 560 0 280 The above tables are a guid
19. ontribute to the time of radiation exposure For this reason most non invasive radiation meter manufacturers provide a dental measurement bias offset in a dental version of their instrument For example the Unfors 512 DENT has a dental preheat bias offset of 5 50 or 150 milliseconds The 5 milliseconds setting is the default Using the 150 msec offset the trace amount of radiation produced at the beginning of preheat is ignored resulting in accurate kVP measurement For time measurements using the Unfors 512 do not set an offset After the exposure subtract 103 milliseconds from the overall time measurement Example Using the Unfors 512 DENT 1 After power on press the parameter key to display the kVp window Press and hold the Parameter key for at least 4 seconds until the d 5 Press the Parameter key one time to display d 50 Press again to display d 150 Press and hold the Parameter key until 0 is displayed The 150 msec delay is now set Then press the key to return to measurement mode This will ignore 150 milliseconds of preheat 2 Setthe JB 70 exposure time on the control panel for 0 200 Make an exposure Repeat to ensure consistency of measurement Record the kVp reading from the meter 3 For exposure times turn the Unfors 512 OFF than back ON do not program an offset Make several exposures to ensure consistency Time Display 0 303 0 103 0 200 the time to be recorded This is describe
20. remedy this condition it is recommended to perform a new tube seasoning procedure This process will establish 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 the exposure time of one second Make ten exposures at this level observing the normal cooling time Proceed with the remainder of the installation g progeny A Midmark Company Solving Performance Issues JB 70 Solving Performance Issues Performance Issues Light X Ray If the x rays are lighter than desired check the following 1 Verify that the exposure time is appropriate for the examination If using pre programmed exposure times make sure that the proper image receptor type is selected 2 Verify proper operation of the film processor No X Ray If no x ray is produced check the following 1 Verify that the line cord if one is in use is properly connected 2 Verify that the power switch is in the ON position Obtaining Technical Support Contact Midmark Corporation 675 Heathrow Dr Lincolnshire IL 60069 Phone 888 924 3800 Fax 847 415 9801 g progeny 1 6 A Midmark Company Specifications JB 70 Setting Pre programmed Exposure Times Power On Settings When the JB 70 Dental X Ray System is powered on the Operator Panel selectio
21. ributors e Follow the disinfectant manufacturer s recommendations when using their cleaner or disinfectant Cleaning If not using a barrier between each patient perform the following cleaning and Methods disinfecting steps 1 Remove gross bio burden from the cone handles and structure with a disposable towel moistened with water 2 Dry the cone handles and structure with disposable towels 3 Wipe the cone handles and structure with a germicidal broad spectrum disinfectant product following the disinfectant manufacturer s instructions 4 Clean any remaining disinfectant residue from the system with a disposable towel moistened with water This additional step prevents possible product discoloration or corrosion 5 Drythe cone handles and structure with disposable towels Caution The JB 70 Dental X Ray System is not waterproof Use only moistened not saturated towels g progeny 1 2 A Midmark Company Recommended Maintenance JB 70 Checking System Functions Important Notice The following checks must be performed at the installation of the JB 70 Dental X Ray System and as part of the recommended maintenance at least every twelve months after installation Failure to perform these checks may result in an installation that does not comply with U S Radiation Performance Standards 21 CFR Subchapter J If the JB 70 Dental X Ray System does not perform the functions below see the Troubleshooting section of this manual
22. sition With the power switch located at the base of the Control Unit in the ON position verify that a time indicates on the Operator Panel Also check the function of the selection buttons for Exposure Time 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 is heard Select the longest exposure time possible using the Exposure Time buttons Initiate an exposure but release the Exposure button after a brief period of time before the timer terminates the exposure Verify that the exposure time flashes indicating a premature termination Press the up or down time arrows to clear the flashing time display 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 g progeny A Midmark Company Recommended Maintenance JB 70 User Information New Tube Seasoning Procedure 15 Make certain that the user of the system has received a copy of the User Manual X ray tubes which sit dormant for several months can become electrically unstable To
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