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Service Manual
R306.4x "Program H.F. US" 40kW - 50kW
While every care is taken to ensure the description and illustration accuracy in this publication, factoryreserves itself the right to make any change in apparatus design considered to be in the interest of ourcustomers, without notice it.
Odel s.r.l.Via Lavoratori Autobianchi, 1 lotto 24/B
20832 Desio (MB)
Tel. (+39) 0362.30.10.64Fax (+39) 0362.15.41.13.3http://www.Odel
[email protected]@Odel
Service Manual R306.4x "Program H.F. US" mk3
series 50kW – 65kW – 80kW - 100kW
n. 1044 ver ENG
0051 While every care is taken to ensure the description and illustration accuracy in this publication, factory
the right to make any change in apparatus design considered to be in the interest of our
DEFINIT
IONS IN
THIS M
ANUAL
1
s.r.l. Via Lavoratori Autobianchi, 1 lotto 24/B
20832 Desio (MB) – ITALIA (+39) 0362.30.10.64
(+39) 0362.15.41.13.3 Odelxray.eu
xray.eu Odelxray.eu
mk3 100kW
While every care is taken to ensure the description and illustration accuracy in this publication, factory the right to make any change in apparatus design considered to be in the interest of our
DEFINIT
IONS IN
THIS M
ANUAL
2
DEFINITIONS IN THIS MANUAL 1.1 Is defined MANUFACTURER here and in all the documentation the following figure:
Odel s.r.l. Via Lavoratori Autobianchi,1 Lotto24B 20832 Desio (MB) - Italia
1.2 Is defined address of SERVICE QUALITY MANUFACTURER here and in all the documentation the following figure:
[email protected] 1.3 Is defined address of CUSTOMER SERVICE MANUFACTURER here and in all the documentation the following figure:
PROPRI
ETARY
STATEM
ENTS
3
PROPRIETARY STATEMENTS The subject matter and contents of this document, together with any drawings therein, are proprietary information of Odel X-ray and are not to be used other than according to the policy of corporation and are not to be copied without prior authorization. Equipment operation in conformity to sector normation is subjected to correct application of all the guidelines contined in this manual. RADIATION PRECAUTION X-rays are hazardous to both operator and other unless radiation protection procedure are esthabilished and strictly observed. Odel X-ray recomends to follow these procedures: Only trained people should operate this unit Read and follow the instructions in the Operator Manual Read and follow all labels and the precaution statements affixed to the unit. Follow Your facilitie's Radiation Protection Never expose people if not necessary Keep all exposure to ioniziong radiation as reasonably achievable If any doubts would come, consult Your supervisor or other qualified expert The above must not take place or supersede any procedure or precaution which may already be established. INSTALLATION PRECAUTION Upon installation, a radiation protection survey must be made by a qualified expert according to the most current protection law version. A survey must be performed after each change in equipment, work load or operating conditions which may increase the probability of persons receiving more than the maximum permissible dose. Manufacturer is not responsable of wrong or missing application of guidelines contained in this manual. Manufacturer qualifies technician who can install and keep maintenance on the equipment. Manufacturer is not responsable for installation or maintenance performed by unqualified technician. Manufactured is not rensponsable on the effects produced by interfacing the equipment to device not included in the compatibility list contained in this manual. Each modification on internal circuit must be analyzed and approved by manufacturer. IMPORTANT NOTICE The safety of both patient and operator was a major consideration in the design and manufacturing of this equipment. The equipment will function reliably when operated, serviced, and repaired according to the instructions in this manual. Misuse, however, could result in hazard to patients, operator and/or equipment. Odel X-ray cannot assume responsibility for any malfunction of this equipment resulting from improper operation, installation, service, or repair, or from damage or modification of its components. The diagnostic facility and/or end user are responsible for performing all periodic checks described in this manual. Odel X-ray disclaims all responsability from any injury resulting from misuse of this equipment.
PROPRI
ETARY
STATEM
ENTS
4
MECHANICAL SAFETY All moveable assemblies and parts of the unit should be carefully operated and rutinely inspected according to the Operator and Mainteinance manual. Use appropriate counter balance weights during assembly and disassembly. Follow all other user manteinance statements in this manual.
ELECTRICAL SAFETY Only properly trained and qualified personel should have access to any internal components Live electrical terminals are hazardous. Be sure that the line disconnect switch is opened and other appropriate precautions are taken before opening access door and removing enclosure panels Do not remove the high tension cable from the X-ray tube housing or high tension generator and/or the access covers from the generator until the main and auxiliary power supplies have been disconnected Electrical grounding must comply with the national electrical code and any local requirem ents as necessary. Follow all other mainteinance statements in this manual failure to comply with the above may result in hazards to operator, patients, and/or equipment.
Ratings
5
Ratings LOADING FACTORS, INTERMITTENT MODE Type And Model
Model 40kW Model 50kW Model 65kW Model 80kW Model 100kW
Type R306.44 Type R306.45 Type R306.46 Type R306.47 Type R306.48
Generator Output Power Model 40kW Model 50kW Model 65kW Model 80kW Model 100kW
40kW 50kW 65kW 80kW 100kW
Equipment Type and Class TYPE B CLASS 1 CEI EN 60601-2-54:2011 GROUP 1 CLASS A CEI EN 60601-1-2:2010
Conform to
IEC 60601-1-2:2007(III Ed.) IEC 60601-1:2012 IEC 60601-2-54:2009 + A1:2015 IEC 60601-1-6:2010 (III Ed.) + A1:2013 IEC 62304:2006 + A1:2015 IEC 62366:2007+A1:2014 93/42/CEE Medical Device
Europe Directive Annex IX regola 10 punto 3.2 Date on Manufacturing see Rapporto di collaudo "Test Report" Date of Test see Rapporto di collaudo "Test Report" Original Manual Language Italian Protection Index IPX0 POWER SUPPLY Nominal Supply Voltage Current 400V~ (three-phase) Supply Frequerncy 50/60 Hz
Nominal Supply Voltage Model 40kW Model 50kW Model 65kW Model 80kW Model 100kW
400V~ (three-phase) / 92Apk 400V~ (three-phase) / 108Apk 400V~ (three-phase) / 141Apk 400V~ (three-phase) / 173Apk 400V~ (three-phase) / 207Apk
Mains Input Power Model 40kW Model 50kW Model 65kW Model 80kW
Apparent 60 kVA Active 54 kW Apparent 75 kVA Active 63 kW Apparent 98 kVA Active 82 kW Apparent 120 kVA Active 100 kW
Ratings
6
Model 100kW Apparent 150 kVA Active 125 kW Supply Tollerance Voltage Nominal - 10% + 10%
Max Supply Impedance Model 40kW Model 50kW Model 65kW Model 80kW Model 100kW
0,30 Ohm 0,20 Ohm 0,15 Ohm 0,13 Ohm 0,10 Ohm
RATINGS ON INTERMITTENT MODE Nominal Tube Voltage 150kV
Maximum X-ray Tube Current Model 40kW Model 50kW Model 65kW Model 80kW Model 100kW
500mA 630mA 800mA 1000mA 1000mA
X-ray Tube Voltage and Current for highest electrical output
Model 40kW Model 50kW Model 65kW Model 80kW Model 100kW
500mA @ 80kV – 400mA @ 100kV 630mA @ 80kV – 500mA @ 100kV 800mA @ 80kV – 630mA @ 100kV 1000mA @ 80kV – 800mA @ 100kV 1000mA @ 100kV
Nominal X-ray Output Power Model 40kW Model 50kW Model 65kW Model 80kW Model 100kW
100kV, 400mA, 0,1s 100kV, 500mA, 0,1s 100kV, 630mA, 0,1s 100kV, 800mA, 0,1s 100kV, 1000mA, 0,1s
Loading factors for High Voltage set by the user From 40kV to 150kV in steps of 1kV
Loading factors for Current high voltage set by the user
From 10mA the maximum Current of High Voltage on scale R10’ 10mA, 13mA, 16mA, 20mA, 25mA, 32mA, 40mA, 50mA, 63mA, 80mA, 100mA, 125mA, 160mA, 200mA, 250mA, 320mA, 400mA, 500mA (tutti i mOdelli) 630mA (50kW, 65kW, 80kW, 100kW) 800mA (65kW, 80kW, 100kW) 1000mA (80kW, 100kW)
Loading factors for Time of Irradiation set by the user
From 0,001s to 6s on scale R10’ in compliance with the minimum product of High Voltage * Time of irradiation
Minimum Nominal time of irradiation 0,001s Loading factors Product Current From 0,4mAs to 600mAs on scale R10’
Ratings
7
High Voltage * Time of irradiation Minimum Product Current High Voltage * Time of irradiation 0,4mAs – 200mA, 0,002s Device Auto Exposure Optional on all mOdels
Semiconductors chamber or ionization RATINGS CONTINUOUS MODE Nominal Tube Voltage 120kV Highest X-ray Tube Current 8mA Note: these ratings are for the X-ray High Voltage generator and are reduced by the ratings of the X-ray Tube when more limiting.
TEMPERATURE REQUIREMENTS and HUMIDITY ENVIRONMENT INSTALLATION TEMPERATURE HUMIDITY PRECAUTIONS Control 10°C ~ 40°C 30% ~ 75% No condensation
should take place Rack 10°C ~ 40°C 30% ~ 75% No condensation
should take place Note: when these specifications are not met, equipment functions and rating can be not guaranteed.
OPERATING ENVIRONMENT TEMPERATURE HUMIDITY PRESSURE Control 10°C ~ 40°C 0% ~ 75% 700hPA ~ 1060hPA Rack 10°C ~ 40°C 0% ~ 75% 700hPA ~ 1060hPA STORAGE CONDITIONS TEMPERATURE HUMIDITY PRESSURE Control 40°C ~ 70°C 10% ~ 95% 500hPA ~ 1060hPA Rack 70°C ~ 70°C 10% ~ 95% 500hPA ~ 1060hPA HEAT GENERATION QUANTITY OF HEAT GENERATED Control Approx 95kcal/h Rack Approx 930kcal/h for standard use Ventilation Absent, not necessary for standard use Note: Contact the manufacturer in case of intensive use for more information
Ratings
8
EXTERNAL SAFETY DEVICES Requirements Device Three-pole differential switch Type B Load 63° Protection 30mA Requirements IEC328, 400V DEFINITION OF X-RAY PARAMETERS High voltage Voltage value after the initial transient Expressed in kV Current High Voltage Average value of current flowing between the cathode and anode during the Time of Irradiation Expressed in mA Time of Irradiation Time when the high voltage (between anode and cathode) exceeds 75% of the kV peak Expressed in s Current product High Voltage * Irradiation time In mAs LOADING FACTORS MEASURING METODOLOGY The generator has been tested in laboratories IMQ in compliance with the general and particular industry, test instruments used are: DYNALIZER III, is a system for measuring high voltage invasive that are in accordance with the methodology of measurement required by IEC 601-2-7, for more information contact:
RadCal Corporation 426 west duarte road
Monrovia - California 91016 USA 818-357-7921
ASPN, measuring system of AIR KERMA with room 500 cc3. BARRACUDA (RTI) measurement system SEMICONDUCTORS. PROPORTIONAL DETECTOR (VACUTEC) is a system of detection dosimetry with ionization technology.
Ratings
9
The acceptance test of the equipment at the manufacturer are carried out with the following equipment, in test certificate "Rapporto di Collaudo" lists the serial tools and traceability to the measurement system certificate
High Voltage Measurement DYNALIZER III + DIGITAL DISPLAY
the measurement is carried out in parallel to the circuit under high voltage through a divider and a high-voltage amplifier configuration instrumental
Measurement of the Current High Voltage
DYNALIZER III + DIGITAL DISPLAY
the measurement is carried out in series to the circuit of High Voltage on a measuring resistor and an amplifier in instrumental configuration
Measurement of the Time of Irradiation
DYNALIZER III + DIGITAL DISPLAY
the measurement is carried out in parallel to the circuit under high voltage through a divider and a high-voltage amplifier configuration instrumental, it is considered as irradiation time exceeding the threshold placed at 75% of the peak value of High Voltage
Measurement of the Dose Ionizing Radiation
PROPORTIONAL DETECTOR + ASPN + BARRACUDA
The value of the dose depends on the radiant circuit introduced by the manufacturer to run the tests will acceptance of the system. The measures are not given on certificates of inspection depending on the irradiation device present at the laboratories of the manufacturer. These measurements are made to verify the continuity of the system of measurement of the primary (electric)
Measurement of the Dose per unit area Radiated Chamber DAP (VACUTEC)
The value of Dose per Unit of Area Radiated tests performed during testing of the system validates the measurement circuit through an ionization chamber certified
Ratings
10
ACCURACY and PRECISION of the RADIOGRAPHIC PARAMETERS PARAMETER MEASURING UNIT RANGE CONTROL
RANGE ACCURACY DEFINED BY THE STANDARD
High Voltage kV 40kV ~ 150kV ±5%
High Voltage Current mA
10mA ~ max mA see table RATINGS INTERMITTENT MODE for definition of maximum High Voltage Current.
±10%
Irradiation Time S 0,001s ~ 6s ±1% + 1ms Current product High Voltage * Time of irradiation
mAs 0,4mAs ~ 600mAs values outside this range for special processes available out of the standard
±10%
Ratings
11
LIQUID PRESENT IN THE SYSTEM High Voltage Transformer Shell Diala DX
For maintenance checks ref. Section description Generator High Voltage Transformer
Note for maintenance service: every 12 months check the oil level, if more than 30 mm from the top of the cover to the oil level is found, refill in order to have 20 mm clearance only. PRECAUTIONS STORAGE TRANSPORTATION
Transformer Use a dry place, not subjected to great temperature changes, in order to avoid condensation; temperature range must be not less than 10 and not more than 60 degrees.
do not turn during transportation, do not shake and deal it with great care in order to avoid any oil leakage
Power Rack Use a dry place, not subjected to great temperature changes, in order to avoid condensation; temperature range must be not less than 10 and not more than 60 degrees.
do not shake and deal it whit great care, very fragile electronic components inside
Control Console Use a dry place, not subjected to great temperature changes, in order to avoid condensation; temperature range must be not less than 10 and not more than 60 degrees.
do not shake and deal it whit great care, very fragile electronic components inside
Note: if what advised in this table is not attended, correct working of the unit cannot be guaranteed.
ENVIRO
NMENT
AL RISKS
and RID
DING O
F COMP
ONENT
S
12
ENVIRONMENTAL RISKS and RIDDING OF COMPONENTS The Unit does not present for the utilized components no environmental risks. This unit cannot be operated in presence of anesthetic mixture inflammable with air or oxygen or nitrogen protoxide. As the HV transformer is containing oil (specially formulated by SHELL for electrical transformer) utilization and safety advice's reported on the A appendix of this manual must be strictly observed do not waste oil in the environment, please attend to the local requirement for getting rid of oil. Please follow these rules to get rid of the different items: for the transformer make the transformer empty of oil; divide the plastic and metallic parts from those oil impregnated; the impregnated parts are the HT capacitor and the primary and HT secondary winding; the primary and secondary can be in they turn dismounted up to reaching the plastic components as the bobbins etc., metallic, as copper and iron, present in the winding and in the core, the capacitor must be taken away from the plastic box where it is contained. when separating the plastic and metallic parts from oil or from the oil impregnated parts, you can proceed to deliver them to the exhaust oil receiving Companies enclosing the relative form concerning the oil characteristics and annexed to the A appendix of this manual. metallic and/or plastic parts must be rid as scrap iron or plastic. deliver the HT diodes stacks and the printed circuit placed on the cover of the HT Transformer to specialized companies for getting rid of metal and plastic items for the generator divide the metallic parts from: printed circuits, plastic parts, single components with huge dimension as electrolytic and/or 600 Vdc film capacitors, IGBT power semiconductors and three-phase bridge, line and breaker switches, fuses and transformers get rid of the iron parts as iron scrap get rid of the plastic parts as plastic scrap the power semiconductors, line switches, huge dimension capacitors and transformers must be released to specialized companies authorized to collect the iron/plastic material with respect to the law in force. the printed circuits must be released to specialized companies authorized to collect them with respect to the law in force. Procedures above mentioned are only an advice to get rid of the generator manufactured by Odel s.r.l., they cannot be intended as a substitution of rules and laws in force on the territory but only as their complement, it is compulsory then to respect at first the law in force in the Country and/or Region wher the prduct must be discarted. Odel s.r.l. Company does not take any charge or responsibility of the getting rid of the product discarded from its customer or of the products present into the market.
ENVIRO
NMENT
AL RISKS
and RID
DING O
F COMP
ONENT
S
13
DECLARATION OF COMPLIANCE WITH THE DIRECTIVE ON THE RESTRICTION OF THE USE OF HAZARDOUS SUBSTANCES IN ELECTRICAL AND ELECTRONIC EQUIPMENT (ROHS) We declare that Odel s.r.l. production process and Odel in factory products are made under compliance with the Directive on the restriction of the use of hazardous substances in electrical and electronic equipment (Italian law no. 151 of 25 July 2005) since, pursuant to article 5, comma 2, point a), referring to attachment 1A, category 8.
RISKS A
RRIVIN
G FROM
THE U
SE OF TH
E EQUIP
MENT
14
RISKS ARRIVING FROM THE USE OF THE EQUIPMENT Responsibility Terms : the manufacturer ( Odel s.r.l.) does not take in any charge whatever damage to persons or things due to a use different than the one the unit has been designed for, or to a wrong and not perfect installation of the unit. This is a HT generator that coupled to a X-ray tube, not manufactured by Odel s.r.l., can, under the operatively conditions described in the user manual, can produce X-ray radiation with power and time previously set from the control console. Warning: the correct use of the generator is user own responsibility, Odel S.r.l. gives only the necessary information for its correct use and relative to the dangers associated to the use of a High Tension generator, but does not take any responsibility for the operations and safety and diagnostic techniques adopted after the sale. Odel S.r.l. does not take any responsibility for over exposures of users and/or patients due to wrong procedures or operating techniques, and also if the generator has not been installed and serviced in accordance to the procedures described in this manual or for defects due to modification made by the installer. This equipment is sold knowing that the manufacturer and its representing agent do not take any responsibility for over- exposure of patients or personnel. There is any design technique that can make safe the operator or the service personnel who take not attention to the safety rules. Only authorized people especially trained is in position to work whit X-ray generators. The personnel of the technical service must be conscious of the dangers associated to the servicing of the H T units and to the high X-ray doses. X-ray exposures can damage the health under cumulative effects that can be shown after several mounts or years. Service and hospital personnel utilizing these equipments must avoid with any care exposure to the primary beam and to be conscious of the secondary beam and of the scattering radiation. The secondary beam is coming from the contact of the primary beam with whatever thing and/or person being within the primary beam and film. Warning: do not over pass the data of the X-ray tube written on its own technical manual . The life of the unit is guaranteed only if the generator is utilized respecting its technical characteristics. The generators must be utilized respecting the information contained in the technical sheet
COMPAT
IBILITY
LIST
15
COMPATIBILITY LIST The list above is a list of tubes tested in the laboratory of the manufacturer, however, the generator can be interfaced, thanks to its versatility and precision in the measurement and control of the basic parameters, tubes not expressly contained; the only requirements that are required are: X-ray tube with rotating anode, bipolar, with a maximum of two burners with maximum current of ignition not more than 8 amperes. This genenerator was designed to respect its rating data while operating with a large fleet of X-ray tubes and X-ray accessories. You can connect the following tubes VARIAN All bifocal tubes from 0.3 to 1.2mm for small focus and from 0.6 to 2mm from large focus with maximum filament current at 8A COMET All bifocal tubes from 0.3 to 1.2mm for small focus and from 0.6 to 2mm from large focus with maximum filament current at 8A EUREKA All bifocal tubes from 0.3 to 1.2mm for small focus and from 0.6 to 2mm from large focus with maximum filament current at 8A PHILIPS All bifocal tubes from 0.3 to 1.2mm for small focus and from 0.6 to 2mm from large focus with maximum filament current at 8A IAE All bifocal tubes from 0.3 to 1.2mm for small focus and from 0.6 to 2mm from large focus with maximum filament current at 8A CGR All bifocal tubes from 0.3 to 1.2mm for small focus and from 0.6 to 2mm from large focus with maximum filament current at 8A DUNLEE All bifocal tubes from 0.3 to 1.2mm for small focus and from 0.6 to 2mm from large focus with maximum filament current at 8A SIEMENS All bifocal tubes from 0.3 to 1.2mm for small focus and from 0.6 to 2mm from large focus with maximum filament current at 8A TOSHIBA All bifocal tubes from 0.3 to 1.2mm for small focus and from 0.6 to 2mm from large focus with maximum filament current at 8A
COMPAT
IBILITY
LIST
16
CHAMBERS FOR CONTROL OF EXPOSURE(AEC) COMET Semiconductor Chamber ZIEHM Semiconductor Chamber GILARDONI Semiconductor Chamber AID Ionization Chamber VACUTEC Ionization Chamber MEDYS Ionization Chamber ACCESSORIES RADIOLOGICAL OF EXAMINATION The generator can be interfaced to the usual accessories that are most commonly found on the market, from remote controlled, the bucky horizontal and vertical as well as the interface to scanners with optocouplers to 24 Vdc or 230 Vac. Specifically they have been tried, and the manufacturer of the generator can ensure proper operation, the tables examination of the following manufacturers (in alphabetical order): ARCOM CGR IBIS IMAGO EUROCOLUMBUS FUJI KERMAT MECALL MT PHILIPS SIAS VARIAN SIMULATORS VILLA S.M. Manufacturers may also provide advice for the installation of its generators on any examination table
COMPAT
IBILITY
LIST
17
Classic TV systems or with digital imaging To the generator you can interface whatever type of TV Chain, this is due to the fact that it can accept different signals arriving from the TV chain. For further informations about the interfacing see the CONFIGURATION chapter. Specifically the products made by the following manufacturers (listed in alphabetic order) have been already tested and we can grant the correct working: ALPHA TECHNOLOGIES ATS EIGEN FIDELITY INFIMED NICAL PHILIPS PRECISE OPTICS STALLION TECHNOLOGIES THALES. The manufacturer can also give assistance to the installation of our generators with whatever other type of TV system or digital equipment. Notes on the inflammability of the generator The inflammable components contained into the generator can be: Oil, to have information about the inflammability point of the oil contained in the HT Transformer see at the appendix of this manual Cables, all the cables contained into the generator are NO 7V-K CEI 20-22 II type Printed circuits, the laminated material utilized for their production correspond to the FR 4 V0 grade of the NEMA/L1 Standard Transformers, they are all protected against the short circuit. USE OF THE EQUIPMENT The unit has been designed to work with a continuous or intermittent load, the power under load is in function of the X-ray tube load and of the thermal load cumulated during the working.
18
EQUIPMENT INSTALLATION Important Notice THIS X-RAY EQUIPMENT ADOPTS AN INVERTER SYSTEM, ITS OSCILLATION FREQUENCY IS AN AUDIO FREQUENCY RANGE OF SEVERAL Hz TO SEVERAL kHz AND NOISES ARE EMITTED FROM THE CABINET DURING THE X-RAY EXPOSURE. AS THE INVERTER OSCILLATES AT HIGH FREQUENCY, ELECTROMAGNETIC NOISES CAN BE PRODUCED IN THE X-RAY MONITOR SYSTEM. THESE NOISES MAY BE PICKED UP BY A CAMERA CABLE AND THEN APPEAR ON THE MONITOS. TO AVOID IT USE SOME PRECAUTION. BEFORE THE INSTALLATION OF THE X-RAY POWER CABINET FOLLOW THESE RULES : MAKE SURE THAT THE INSTALLATION ROOM IS FAR FROM POWER PLANTS OR POWER MACHINERY OR MECHANICAL MACHINERY.(AIR CONDITIONNING SYSTEMS, ELECTROSTATICS FILTERS, LIQUID PUMP STATIONS, ETC) DURING THE ROOOM DESIGN PLACE THE POWER REMOTE TILTING TABLE RACK AS FAR AS POSSIBLE FROM THE X-RAY GENERATOR. MAKE SURE THAT ALL THE CABLES OF THE TV CHAIN HAVE DIFFERENT PATH THAN THE HV GENERATOR ONES AND THAT NO ONE SERVICE OF THE TV CHAIN SHOULD BE FED (POWERED) WITH THE SUPPLIES PRESENT INTO GENERATOR. IN FACT THEY CAN BE SUBJECTED TO THE INVERTER NOISES. POSITIONING OF THE POWER RACK IS VERY IMPORTANT TO MAKE THE SERVICE EASY. THEREFORE CABINET MUST BE MOVABLE FROM THE WALL OF ABOUT 60 CM ALL AROUND EVERY SIDE AND ALL LATERAL PARTS MUST BE QUICKLY AND EASILY ACCESSIBLE.
ELECTR
OMAGN
ETIC CO
MPATI
BILITY
19
ELECTROMAGNETIC COMPATIBILITY The equipment complies with the standards applicable to the product with regard to electromagnetic compatibility EN 60601-1-2: 2007. The equipment must be installed and put into service according to EMC information provided in this section. The equipment may be affected by portable and mobile communications equipment. The equipment can't be provided with cables other than those specified by the manufacturer even if sold as replacement parts for internal components, as this condition may' result in increased emissions or decreased immunity of the EMC. The apparatus should not be used near or stacked with other equipment in order to avoid interference in the normal operating condition. It does not therefore risks arising from the coupling of the electronic device with other electronic devices, verification conducted within the limits dictated by the standard. Test Report performed by IMQ testing laboratory.
Annex A (Table 1)
The [EQUIPMENT Series R306.4x] is intended for use in the electromagnetic environment specified below. The customer or the user of the [EQUIPMENT Series R306.4x] should assure that it is used in such an environment.
Emissions test Compliance Electromagnetic Environment RF emissions
CISPR 11
Group 1 This [EQUIPMENT Series R306.4x] uses RF energy only for its internal function. Therefore, the RF emission is very low and not likely to cause any interference in nearby electronic equipment.
RF emissions CISPR 11
Class [A] This [EQUIPMENT Series R306.4x] is suitable for use in all environments other than domestic and those directly connected to mains power to the public low-voltage which supplies buildings used for domestic purposes. Harmonic emissions
EN 61000-3-2
[Not Applicable]
Voltage fluctuations/ flicker emissions
EN 61000-3-3
[Not Applicable]
CISPR 14 [Not Applicable]
Not Applicable
CISPR 15 [Not Applicable]
Not Applicable
ELECTR
OMAGN
ETIC CO
MPATI
BILITY
20
Annex B (Table 2)
The [EQUIPMENT Series R306.4x] is intended for use in the electromagnetic environment specified below. The customer or user of the [EQUIPMENT Series R306.4x] should assure that it is used in an electromagnetic environment.
Immunity Test
EN 60601-1-2 Test level
Compliance level
Electromagnetic Environment - guidance
Electrostatic discharge (ESD) EN 61000-4-2
± 6 kV contact ± 8 kV air
EN 60601-1-2 Test level
Floors must be wood, concrete or ceramic tile. If floors are covered with synthetic material, the relative humidity must be at least 30 %.
Electrical fast transient/burst EN 61000-4-4
± 2 kV for power supply lines ± 1 kV for input/output lines > 3 m
EN 60601-1-2 Test level
Mains power quality must be that of a typical commercial or hospital environment.
Surge EN 61000-4-5
± 1 kV differential mode ± 2 kV common mode
EN 60601-1-2 Test level
Mains power quality must be that of a typical commercial or hospital environment.
Voltage dips, short interruptions and voltage variations on power supply input lines EN 61000-4-11
<5 % UT for 0,5 cycle (>95 % dip in UT) 40 % UT for 5 cycles (60 % dip in UT) 70 % UT for 25 cycles (30 % dip in UT) <5 % UT for 5 s (>95 % dip in UT)
EN 60601-1-2 Test level
Mains power quality must be that of a typical commercial or hospital environment.
Power frequency (50/60 Hz) magnetic field EN 61000-4-8
3 A/m EN 60601-1-2 Test level
Power frequency magnetic fields must be at levels characteristic of a typical location in a typical commercial or hospital environment.
non-LIF
E SUPPO
RTING
EQUIP
MENT
21
Annex C (Table 4) non-LIFE SUPPORTING EQUIPMENT
The [EQUIPMENT Series R306.4x] is intended for use in the electromagnetic environment specified below. The customer or the user of the [EQUIPMENT Series R306.4x] should assure that it is used in such an environment
Immunity Test
EN 60601-1-2 Test level
Compliance level
Electromagnetic Environment
Radiated RF EN 61000-4-3
3 V/m 80 MHz to 2.5 GHz
3 V/m EN 60601-1-2
Test level
Portable and mobile RF communications equipment should be used no closer to any part of the [EQUIPMENT OR SYSTEM], including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter Recommended separation distance
Pd 2.1 80 MHz to 800MHz Pd 3.2 800 MHz to 2.5GHz
Where P is the maximum output rating of the transmitter in watts (W) according to the transmitter manufacturer and d is the recommended separation distance in meters (m). Field strengths for fixed RF transmitter, as determined by an electromagnetic site survey, should be less then the compliance level in each frequency range Interference may occur in the vicinity of equipment marked with the following symbol:
Conducted RF EN 61000-4-6
3 V 150 kHz to 80 MHz
3 V EN 60601-1-2
Test level
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies. NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structure, objects and people. a Fields strengths from fixed transmitters, such as base stations for radio telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters , an electromagnetic site survey should be considered. If the measured field strength outside the shielded location in which the [EQUIPMENT Series R306.4x] is used exceeds [field strength] V/m, observe the [EQUIPMENT Series R306.4x] to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as relocating the [EQUIPMENT Series R306.4x] or using a shielded location with a higher RF shielding effectiveness and filter attenuation b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than [V1] V/m.
Recom
mende
d Separ
ation D
istance
for no
n-LIFE S
UPPORT
ING EQ
UIPME
NT
22
Annex D (Table 6)
Recommended Separation Distance for non-LIFE SUPPORTING EQUIPMENT
The [EQUIPMENT Series R306.4x] is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the [EQUIPMENT Series R306.4x] can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitter) and the [EQUIPMENT Series R306.4x] as recommended below, according to the maximum output power of the communications equipment.
Rated maximum output power of the transmitter
(W)
Separation distance according to frequency of transmitter (m)
80MHz to 800MHz Pd 2.1
800MHz to 2.5GHz Pd 3.2
0.01 0.12 0.23 0.1 0.38 0.73 1 1.2 2.3 10 3.8 7.3 100 12 23
For transmitters rated at the maximum output power not listed above, the recommended separation distance d in meters (m) can be estimated the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer. Note:
(1) 800MHz, the separation distance for the higher frequency range applies (2) These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people
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MAINTENANCE - FAULTS To ensure patient safety, the operator and other parts that might come into contact with the equipment, we recommend performing a preventive maintenance program which consists of the annual review of the main features of the generator, most service functions incidental. More frequent checks will be required if the equipment works in conditions not specified in the tables supplied by the manufacturer. The tests to be performed are of two categories: Functional tests, that can be executed by the operator Technical service, which must be performed by specialized personnel, equipped with appropriate instrumentation. As a manufacturer and installer declining to liability on the operation of the equipment, if: Installation, operation extensions, calibration, repairs are not performed by qualified personnel by the manufacturer. items related to safety circuits have not been modified and / or replaced with those in the spare part list supplied by the manufacturer. the electrical installation of the room where the equipment present, does not comply with the current law and regulations and the IEC 601-2-7 misuse and / or abuse of the equipment FUNCTIONAL TESTS Before any test that requires the emission of ionization radiation, the wearing of the protections including devices for personal dosimetry. CONTROL AUTOMATIC EXPOSURE Close the collimator. If you need to cover it with towels sealed. Perform a display by holding down the rays; make sure the device before the AEC is active. The yellow handwriting should be illuminated during the whole time of writing. Warning! not consider the alarm at the end of handwriting, this indicates that the device is working properly. Your handwriting is locked instantly, and This former correct. Open the collimator. Perform exposure. In this case the indicator of the radiation will have to remain switched on for a time equal to 100 ms. CONTROL DEVICE FOR AUTOMATIC ADJUSTMENT OF DOSE Close the collimator. If you need to cover it. Do one fluorine fluoroscopy device with ABS inserted. The yellow indicator fluoroscopy should be illuminated during the whole time of exposure. Warning! the dose, as reported on the appropriate value kV-mA display, should go up to the maximum value. Stop fluoroscopy. Open the collimator. Perform a new fluoroscopy. In this case, the indicator of the radiation will have to remain switched on and the dose down to the lower value. Release the control of fluoroscopy.
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CLEANING The equipment must be turned off before any cleaning action. Using clean cotton cloth and non-abrasive detergents. Do not use organic solvents or agents containing solvents of any kind. Do not spray the cleaner must not enter under any circumstances inside of the apparatus. To disinfect surfaces we recommend the use of aqueous solutions based on aldehyde. Is recommended that no agents particularly aggressive based alcohol. DAILY TEST Before beginning the tests perform a visual inspection of the machine, to report visible damage. During tests check that the yellow-ray fluoroscopy and handwriting are working properly. WEEKLY TESTS Check the integrity of cables and electrical connections. Check oil leaks or unusual noises coming from the generator MONTHLY TEST A.E.C. and A.B.S. test, listed above. TECHNICAL SERVICE A correct service program follows those items Inspection frequency Inspection activity
Every 6 month or every time a component is substituted
Radiological parameters inspection: › High Voltage peak value › Current*Time product accuracy › In case Automatic Exposimeter verify integrated dose and repeatibility Every inspection required by country law where equipment is installed
Every 12 month Verify functionality and clean High Voltage headings and put fresh insulating grease
Every 5 years Replace NVRam. A correct and regular service program requires: Integrity of cables, insulations, shields specially for live parts Check for every bolt fixed with strenght. Check the correct workflow of the generator (as explained in previous chapter). Leakage currents measure. Heart resistance measure on every accessible metallic part. Clean dust on every horizontal part inside the rack: dust, moisture and salted atmosphere, such as in seaside locations can reduce ground insulation Check, clean and use fresh insulating grease on High Voltage Cables headings
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Check and Clean, wherever possible, relay and tele-controlled contactor’s contacts Check dielectric oil level and transparency in High Voltage Transformer Check alarms in alarm log Inspect fuses integrity Inspect also with an external meter, radiographical parameters and doses Inspect tube calibration and all the test tah cvan grand the correct exposition Cables and connections integrity Switch off the gnerator, open the rack and visual inspect cables, than test with appropriate tools the strenght of the connections: Cables Visual inpsects cables for breaks, loose connections and insulation integrity. Prited Circuits Boards Check for connectors insertions, remove and re-insert every connector to remove the possible contects oxidation. Do the same on every board, including the control console connection board. Leakage Currents measure Use appropriate tool to measure hearth leakage currents: refer to I.E.C. 601 -2 – 7 regulation. Dust clean Switch off the generator Open the rack, use a dry brush to clean dust on surfaces, do not use l iquids on l ive part s , do not clean when live mains is insert. Clean also vertical PCBs. Clean also the inner parts of the control console. High Voltage connection clean Switch off the generator Wait 1 minute Remove one H.V. cable by time Make the three pin touch a grounded metallic surface Inspect cable heading and pins to find black lines, smell also the cable to locate possible burn smells Clean the headings If necessary open the pins Verify insulation between pins and ground Replace the coumpound with new dielectric grease Insert the heading and fix down using the gears screws Do it for every heading, also on tube side. Contacts cleaning Switch off the generator an all the generator’s accessories Open the rack Locate the relays, open the cap and inspect the contacts, in case clean using contacts clean spray.
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Close the cap and repeat this procedure on every openable relay. Open the frontal side of the big line contactor, inspect and clean the contacts: if seriously damaged replace the contacts. Dielectric oil inspection Switch off the generator and open the rack. Check oil level removing the black enclosure on the high voltage transformer. Oilo level should be 1..1.5cm from the top, depending on oil temperature. Sniff the oil to determinate if an acrid smell is inside the transformer. Check with a visual inspection of the bottom of the cabinet to verify the absence of oil. If oil is located outside of the transformer, check transformer to locate the point of origin. In the event that a leak was localized at a critical point contact the manufacturer for provisions about. Clean dirty oil and, if necessary, top up oil. The oil usable for topping up must be treated with microfilteringi and drying: Use only oil supplied by the manufacturer. Close the generator. Alarm Check Visual Inspection On each card there are green LEDs that display the status of the power supply ALWAYS PRESENT, check that the green LEDs are all switched on. The forms are the yellow LEDs that display the status of the signals. Check through the table attached to this manual, the LEDs on the status of the generator. On some cards are red LEDs that display the status of selected alarm system, verify that the red LEDs are switched off. Electronics inspection Turn off the generator. Open the cabinet of the generator. Chech cards inverter and Main Computer Turn on the generator.
Warning! The presence in the inverters of the electrolytic capacitors of high capacity, each time the generator is switched on without the side walls, are avoided the contacts, an appropriate distance is maintained between the terminals of the capacitors and the own body, or any thing that is not isolated is handling. Before touching the terminals to make sure that the power is disconnected and there is no voltage on the capacitors. Open the front panel; Connect the service program and enter into diagnostics. Check for alarms stored. Radiological Parameters inspection Make an initial exposure to 80 kV, 100 mA, 0,50s.,
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No alarm should trigger in this situation. To check the accuracy of radiographic parameters is necessary to verify that the calibration of these tubes is correct, while the mA depend on the type of tube, and then the calibration of the data HardWare SoftWare but also by the setting of the tube. kV peak are independent the type of tube installed, the parameters to be checked are: kV peak, mA average spelling, handwriting time, mAs. As regards the kV is possible to calibrate the measured value, the same applies to the mA, the time does not require calibration of any kind, being controlled by a quartz, the mAs must be corrected if the mA are within tolerance. The adjustments of the circuits HW measurement of kVp and mA are performed in the factory during the final testing phase; the standard instrument used for this work is a tool produced by INVASIVE RadCal Corp. and called Dynalyzer; it measures kVp, mA and time. It is advisable, therefore, in the case in which is necessary a calibration of the part HW, to use this type of tool or equivalent. For the tests of accuracy and repeatability follow tables and following procedures: Connect instruments for the measurement of kV and mA; It should connect external devices to the generator for the measure, if it were not possible to connect the oscilloscope to signal kV feedback on the Main Computer. An usage misuse of these test points or the introduction of noise on this signal can lead to serious consequences and a malfunction of the power circuit of the generator, mARadio on its test Point depending on the desired rate. It is clear that in this case it is only possible to control the waveforms of the X-ray parameters, it is not possible to calibrate the channels HW relying on themselves, because it lacks the standard instrument. Turn on the generator and bring it into operational mode ACCURACY TEST An example of periodic tests is represented by the ratio of final testing issued with the generator. Repeat exposures indicated in values and ways on the test report and verify that the results beds are included in the range of acceptability for the parameters under consideration. The deviation of the real parameters than the set must not be higher than 5% for kV and to 10% for mA. If they are experiencing considerable differences in kV, before retouching control potentiometer kV contact the manufacturer. If you are experiencing considerable differences in mA, before proceeding to a new setting, check with the service program that the filaments are properly fed, the high voltage cables have pin heads thoroughly clean and wide, and the tube filaments are turned on . kV Accuracy If the kV value is not within the limits given in the table you must make the appropriate settings on the potentiometers and gain feedback on the card Computer Main. To adjust the value of real kV must act on the potentiometer, checking the answer through an external kVoltmeter. To adjust the value of kV read from the main computer and displayed on the cabinet, you must act on the feedback potentiometer reading, looking at the real value of kV as per the previous point, and the value read through the service program .
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mA Accuracy If the value of mA is not within the limits given in the table must be rebuilt calibrate the focus. This is done through the service software. If the uncalibrated issue is an interval inspect also the system remembering the way the geenrator uses to measure and control the current, as described below: There are three channels for the measurement of mA: icl, channel fluoroscopy with high resolution and saturation channel 10mA icm, channel X-ray with high resolution and saturation channel 150mA ich, channel radiography with medium resolution and saturation channel to 1500mA Exposure Time Accuracy The tests are to confirm the accuracy of time measurement in fact there are no adjustments to be done on this parameter, in case of doubt, verify that your instrument reference is used in the correct manner, and marks the time to 75% of the value kVpk. mAs Accuracy Since the mAs are the product of mA and time, and being the time is not adjustable, the only adjustment is that of the mA already seen previously. CALIBRATION Since the emission characteristics in terms of quality of the ionizing radiation degrades significantly with the wear of the filaments of the X-ray tube, the emission curves of the generator should be re-calibrated every year. To do this, follow the instructions below in the description of the calibration process of the focuses through the service program of the generator.
INSTAL
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29
INSTALLATION REPORT MAILTO: [address of the service quality 'manufacturer marked on the front page] DATE: __/__/____ SUBJECT: INSTALLATION REPORT ATTENTION: QUALITY SERVICE COMPLIANCE TO DIRECTIVE 93/42 / EEC IN THE FIELD OF RESPONSIBILITY OF THE MANUFACTURER REQUIRES THE KNOWLEDGE OF AVAILABILITY FINAL PRODUCT. PLEASE COMPLETE THIS FORM AND THE MANUFACTURER forward AFTER PROPER INSTALLATION OF ANY PRODUCT. LOCATION Place
Dept.
Address
City
Country
ZIP
LOCAL ASSISTANCE Name
Family name
Company
Tel.
Mobile
Fax.
SYSTEM Model
Power
Serial Number
INSTAL
LATION
REPOR
T
30
REFERRING TO TECHNICAL MANUAL Visual inspection on reception: ________________________________________________________________________________________________________________________________________________________________ The installation site is designed according to current standards. Yes No Note : ________________________________________________________________________________________________________________________________________________________________ Note on packaging and shipping: ________________________________________________________________________________________________________________________________________________________________ HIGH VOLTAGE TRANSFORMER INSPECTION Oil level satisfy the limits External Connections cable has at least 1 meter of abundance Ground cable is connected kV/mA signal flat cable is connected (trasformatore di Alta Tensione a Computer Principale) Focus Supply cables are connected correctly MAINS CONNECTION Line Power meets the specifications of the technical beginning of this manual The cables for connection of Food meet the standard requirements for facilities videnti A line adaptor is required YES NO COLLEGAMENTO CAVI DI ALTA TENSIONE In the case in which the high voltage cables are not supplied by the manufacturer of the generator Cables High Voltage meet the CE / MDD The terminals of the high voltage cables comply with the interference receptacles The screens of the cables of high voltage are grounded by the High voltage transformer (only) ROTATING ANODE’S STARTER CONNECTION The Power Cables of the stators are connected according to the installation instructions In the case where the pipes are not supplied by the manufacturer of the generator The X-ray tubes meet the CE / MDD industry The X-ray tubes are present in the list of compatibility YES NO ACCESSORY CONNECTION The Potter Bucky are connected as indicated for installation In the case where the Potter Bucky are not supplied by the manufacturer of the generator Potter Bucky meet the CE / MDD industry Potter Bucky are present in the list of compatibility YES NO HANDSWITCHES and FOOTSWITCHES Installation includes external Commands Radiography YES NO
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External radiography commands meet the standard requirements In the case where the External Command are not supplied by the manufacturer of the generator External Command meet the CE / MDD industry External Command are present in the list of compatibility YES NO EXTERNAL FLUOROSCOPY FOOTSWITCH Installation includes external Fluoroscopy Footswitch YES NO Fluoroscopy Footswitch meet the standard requirements In the case where the Fluoroscopy Footswitch are not supplied by the manufacturer of the generator Fluoroscopy Footswitch meet the CE / MDD industry Fluoroscopy Footswitch are present in the list of compatibility YES NO EXTERNAL ACCESSORIES Installation includes external Accessories YES NO external Accessories meet the standard requirements In the case where the external Accessories are not supplied by the manufacturer of the generator external Accessories meet the CE / MDD industry external Accessories are present in the list of compatibility YES NO MAINS REQUIREMENTS Mains is protected (Fuses/Magnetic thermal switches) In case of single phase accessory not supplied by generator’s manufacturer: power Supply and intserfaceare insulated by relays External Systems satisfies CE / MDD regulation GENERATOR CONFIGURATION GCF file stored in a safe place or sent to manufacturer e-mail address
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32
CRITICAL FAILURE COMMUNICATION MAILTO: [address of the service quality 'manufacturer marked on the front page] DATE: __/__/____ SUBJECT: INSTALLATION REPORT ATTENTION: QUALITY SERVICE COMPLIANCE 'DIRECTIVE 93/42 / EEC REQUIRES THE KNOWLEDGE BY THE MANUFACTURER OF CASES FOR WHICH THE PRODUCT HAS CAUSED THE DEATH OR SERIOUS DETERIORATION IN THE STATE OF HEALTH OF THE PATIENT OR A USER. PLEASE COMPLETE THIS FORM AND THE MANUFACTURER forward OCCUR IF ONE OF THE CASES MENTIONED ABOVE. SYSTEM and INSTALLATION DATA Place Dept. Address City Country ZIP LOCAL SERVICE Name Family name Company Tel. Mobile Fax. E-mail SYSTEM DATA Model Power Serial Number FAILURE DESCRIPTION AND CONSEQUENCE
-------- END OF TRANSMISSION --------
DOSE M
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33
DOSE MEASURE DOSE*AREA PRODUCT Configuration DAP chambers detectors are interfaced through RS422 (1 pulse per uGy*cm2 or 1pulse per mGy*m2) Interface is autosensing the presence of the detector. Measure items follows:
Measure chamber on tube side, inserted in collimetor rails Connection cable connected between chamber to main computer inside the generator An optional TM-U220B printer.
Each measurement chamber leaves the factory with a calibration coefficient (number between 0500 and 2000) who introduced the main computer through the program dis erviziocalibra the weight of each pulse to measure the room campion made in the laboratories of the manufacturer. The label provides the printer will be on adhesive paper and then glued on the radiograph. The information contained in it are:
The type of work or FLUORO PULSED or RADIO or CINE The tube in use T1 or T2 or T3 the date DD / MM / YY hour HH: MM: SS the value of kV the value of mA the time of handwriting or the sum of the times of handwriting in the same preparation in
millisecond the dose expressed in mGray per square centimeter the total time of the RUN or fluoroscopy in seconds the number of exposures of handwriting or pulsed fluoroscopyKERMA
During the installation of the generator you can activate the pre / post indication of kerma for intermittent and pulsed regimes. When the 6 parameters of the kerma dose measurements are non-zero, the control panel enables the display of these parameters. The geometric parameterization and the presence of an additional filter occurs through the measures, statically, in the phase of installation through the service program.
TECHN
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TECHNICAL DESCRIPTION GENERATOR’S REGULATION LOOP The logic diagram of adjustment is shown schematically in the figure below, in which the blocks represent the logical division of the central and peripheral functions, control and power:
Inverter interfacing with the line, where there are safety switches Three-phase bridge, capacitors, and inductors to power the DC-RAIL and allow the transfer
of power to the inverter. Power Inverter High Voltage Transformer Distribution of power generator Main Computer and Automatic Control of Exposure Terminal general interfacing with the outside. Filament Inverter service power and drive anode
HIGH VOLTAGE REGULATION LOOP The regulation loop of kV is completely harware in a mixed analog/digital process, this means that the uP does not directly enter into such an adjustment, what it knows is the real value of kV, and the status of the generator thanks to digital signals that arrive from the inverter. When it is requesting the issuance of ionizing radiation predisposes the main computer peripheral signals to put the tube in a position to deliver the desired parameters (Control Safeties, rotating anode drive, pre-ignition Fire selected.
TECHN
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ESCRIP
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35
Then prepares the signals that enable the inverter oscillation [NONx], then checks that the feedback signal of the presence of voltage on the inverter is active [IPW] and the signal showing the state of balance of the branches of the bridge is active [IUB]. Is then set to the reference value of kV, analog signal (OKV +). The activation of the inverter start signals initiates the charging of high voltage capacitors inside the High Voltage transformer. Such charging is limited in current by a ramp of about one millisecond, the Start inverter to the point of exceeding the 75% of the set voltage. Here is a digital signal generator of the presence of the High Voltage [IRM]. From here microprocessor start counting the length of time of irradiation HIGH VOLTAGE CURRENT REGULATION LOOP The regulation loop of mA is completely controlled by the main computer through the modulation ignition of the filament chosen, this means that in every moment of the issue, intermittent or continuous, the computer knows the value of emission mA. The main computer controls the emission value by changing the value of lighting the filament, if the issue is in the range of acceptance of the parameters, otherwise generates error interrupting the issue. Therefore, the magnitudes involved in this control are:
• measurement circuit (ich), high current handwriting, (icm), current media handwriting, and (IFL), current fluoroscopy; This signal is taken from the high voltage transformer and led to the analog section of the main computer, here is measured by a circuit and amplified (ich): 10 Vdc = 1500 mA; (Icm): 10 Vdc = 150 mA; (Icl): 10V = 10mA)
• The circuit generates the DAC reference to lighting the fire selected to the inverter power filaments
• The inverter board ignition filaments that through the transformers of the filament, isolated, produces ring closed, the current necessary for the correct emission.
To know the characteristic of emission of a tube, uP needs the CALIBRATION TUBE, in this manner can calculate the value at which the filament must turn on for the pair kV-mA chosen by the operator, for from issuance correct. The uP needs this value only for the departure rays and this value should be as close as possible to the value of mA chosen, after a few usecondi departure from the uP begins to read the mA emission and consequently adjust the ignition. If the value of mA ignition was too far away from the chosen one (25% for the low values, 12.5% for high values), the main computer stops the spelling and sounds the alarm, because it decided that it was no longer possible to adjust get the correct value of the issue and then get a good risultato.ù You can have this warning for two reasons:
• tube uncalibrated • incorrect reading of the mA output, something is not working in the loop
measurement mA or lighting adjustments
TECHN
ICAL SH
EETS
36
TECHNICAL SHEETS DIELECTRIC TRANSFORMER OIL As provided by producer, Also available on produce site: http://www.shellitalia.it)
TECHN
ICAL SH
EETS
37
TECHN
ICAL SH
EETS
38
TECHN
ICAL SH
EETS
39
TECHN
ICAL SH
EETS
40
TECHN
ICAL SH
EETS
41
TECHN
ICAL SH
EETS
42
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43
TECHN
ICAL SH
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44
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45
Symbol DescriptionElectrical
3Ph~ I O
L1, L2, L3
general
Other symbols used in User manual are
Symbol Description Alternate Current, Three-phase system System ON System OFF Mains Phases High Voltage Hazard
Do not touch when mains is applied
Ground Protection
European Community markage
Type B equipment under IEC60601 regulation
Warning: read annexed documentation
Intermittent mode emission
Continuous mode emission
X-RAY emission Other symbols used in User manual are described in User Manual
Symbol
Descri
ption
46
regulation
Labellin
g
47
Labelling Power rack label
MANUFACTURER’s DATA
SYSTEM MODEL
SYSTEM SERIAL NUMBER
PRODUCTION DATE
EUROPEAN COMMUNITY COMPLIANCE LABEL SYMBOLS
Labellin
g
48
MAINS REQUIREMENT
CONTINUOUS LOAD
MAXIMUM INTERMITTENT LOAD WHEN EMISSION IS REQUIRED
OEM DATA
