Siemens Healthineers RAY-14 Series Parts list manual

X-Ray tube assembly
RAY-14 family
Manual – Technical Description
siemens-healthineers.com

Table of contents
1Technical Description
Print No. R76-020.140.96.15.02
1General data 1
1.1 Validity of this document 1
1.2 Safekeeping of operator manuals 1
1.3 Names and parameters 1
2Address 2
3Laws, standards and regulations 3
4Description 4
4.1 Intended purpose 4
4.2 Functional Characteristic 5
4.2.1 Design 5
4.2.2 Characteristic 5
4.3 Explanation of designation 5
5Notes 6
5.1 General notes 6
5.2 Safety information 6
5.3 Radiation protection 8
5.4 Operating conditions 8
5.5 Electromagnetic Compatibility (EMC) 9
5.6 Maintenance 9
5.7 Checks 9
5.7.1 Visual check with the generator turned off 10
5.7.2 Mechanical check with the generator turned off 10
5.7.3 Electrical check 10
5.8 Disposal 10
5.9 Installation notes for personnel 10
5.9.1 Radiation outlet block 11
5.9.2 X-ray tube assembly connection plates 12
5.9.3 High-voltage connections 14
5.9.4 Tube assembly filtration 15
5.10 Pictograms 16
5.10.1 Symbol of protective earth conductor 16
5.10.2 Warning symbol of dangerous voltage 16
5.10.3 Symbols to mark cathode and anode of HV-connection horns 16
5.10.4 Symbol of operating instructions 16
5.10.5 Symbol for compliance to UL-standard 17
6Technical Data 18
6.1 X-ray tube / tube assembly 18
6.2 Conditions for operation, storage and transport 20
7Curves 21
7.1 Heating and cooling curve of anode 21
7.2 Heating and Cooling Curves of X-ray tube assembly 21
7.2.1 Tube assembly without fan 21
7.2.2 Tube assembly with fan 22
7.3 Emission curves of the cathode 23
7.4 Loading curves 24

Table of contents
2Technical Description
Print No. R76-020.140.96.15.02
7.4.1 Single loading curve 24
7.4.2 Series pulse mode 28
8Connection diagrams 32
9Dimensional drawings 33
9.1 Maximum radiation field 33
9.2 X-ray tube assembly dimensional drawings 34
10 Label 36
10.1 The type label of the X-ray tube assembly 36
10.2 The type label of the X-ray tube 37

3Technical Description
Print No. R76-020.140.96.15.02
CE Mark
Caution: The sale and placing on the market of the equipment described herein is subject to approval
according to national and international regulations.
This device bears a CE mark in accordance with the provisions of EU Regulation 2017/745 of April 5,
2017 concerning medical devices and the Council Directive 2011/65/EU of June 8, 2011 on the
restriction of the use of certain hazardous substances in electrical and electronic equipment.
The CE marking applies only to Medical Devices which have been put on the market according to the
above-mentioned EU Regulation and EU Directive.
Unauthorized changes to this product are not covered by the CE mark and the related Declaration of
Conformity.
Document Version
Siemens Healthcare GmbH reserves the right to change its products and services at any time.
In addition, manuals are subject to change without notice. The hardcopy documents correspond to
the version at the time of system delivery and/or printout. Versions to hardcopy documentation are
not automatically distributed.
Please contact your local Siemens Healthineers office to order a current version or refer to our website
http://www.siemens-healthineers.com.
Disclaimer
The contents of this document may be published under a system integrator’s/manufacturer’s label,
but it is the sole responsibility of the system integrator of the finished medical device that content
and safety measures described within this document are maintained and clear to the end user. The
system integrator is responsible for translations of this document and to provide the language
versions that might be required under country specific regulations. These components and
configurations are not finished medical devices. The system integrator is responsible for complying
with all laws and regulations that are applicable to finished medical devices with respect to
marketing, sales and installation.
Copyright © 2020 Siemens Healthcare GmbH-Germany. All rights reserved.

1 General data
1Technical Description
Print No. R76-020.140.96.15.02
1General data
1.1 Validity of this document
This operator manual applies only to X-Ray tube assembly of the product RAY-14 family from Siemens
Healthcare and was prepared on the basis of the applicable German and international standards, see
section "Laws, standards and regulations" on page 3.
1.2 Safekeeping of operator manuals
Always keep the operator manual in an easily accessible place near the medical system.
1.3 Names and parameters
In the following, the X-ray tube assembly RAY-14 family from Siemens Healthcare is generally referred
to as a medical device (ME device) or X-ray tube assembly.
Type
Model No.
RAY-14_3
RAY-14_1
RAY-14S_3
RAY-14S_3F
RAY-14S_1
7035483
7037133
7037000
7037208
7037141
Protection Class
Standard
Protection class
X-ray tube assembly according to IEC 60601-2-28: 2017
Class I

2 Address
2Technical Description
Print No. R76-020.140.96.15.02
2Address
Legal Manufacturer / Serious incident contact
information
Siemens X-Ray Vacuum Technology Ltd., Wuxi
No.112, Meiyu Road
214028 Wuxi, Jiangsu
P. R. China
Tel: [phone]
Fax: [phone]
* Any serious incident that has occurred in
relation to the device should be reported to the
manufacturer and the competent authority of
the Member State in which the user and/or
patient is established.
Expected service life
50,000 exposures
* The lifetime of every single XTA is highly
relevant to its actual use; it is probable to be
longer or shorter than claimed. If there is no
performance defect with XTA, it could continue
to use after reaching the claimed lifetime.
Address for further inquiries
Siemens Healthcare GmbH
Power and Vacuum Technology
Allee am Röthelheimpark 2
91052 Erlangen
Germany
Phone: [phone]
siemens-healthineers.com
Importer (only for EEA – European Economic
Area)
Siemens Healthcare GmbH
Henkestr.127
91052 Erlangen
Germany
Original language
English

3 Laws, standards and regulations
3Technical Description
Print No. R76-020.140.96.15.02
3Laws, standards and regulations
This product has been manufactured and developed in agreement with the following laws, directives and
design regulations.
➢EU Regulation 2017/745 of April 5, 2017 on medical devices (CE marking)
➢Council Directive 2011/65/ EU of June 08, 2011 on the restriction of the use of certain hazardous
substances in electrical and electronic equipment, following the requirement of standard IEC
63000:2016.
➢ISO 13485:2016 Medical devices – Quality management systems – Requirements for regulatory
purposes
➢ISO 14971:2007 Medical devices –Application of risk management to medical devices
➢21 CFR Part 1020.30, Performance standard for ionizing radiation emitting products, (USA)
➢21 CFR Part 820 Quality System Regulation, (USA)
➢International Electrotechnical Commission (IEC), the following standards are considered especially:
IEC
Title
IEC 60336:2005 + C1:2006
eq EU: EN 60336:2005
Medical electrical equipment -X-ray tube assemblies for medical
diagnosis –Characteristics of focal spots
IEC 60522:2003
eq EU: EN 60522:1999
Determination of the permanent filtration of X-ray tube assemblies
IEC 60526:1978 + C1:2010
eq EU: EN 60526:2004
High-voltage cable plug and socket connections for medical X-ray
equipment
IEC 60601-1:2012 +C1:2012
eq EU: EN 60601-1:2006 +
AC:2010 + A1:2013
Medical electrical equipment - Part 1: General requirements for basic
safety and essential performance
IEC 60601-1-3:2008 +
A1:2013
eq EU: EN 60601-1-3:2008 +
AC:2010 + A1:2013
Medical electrical equipment - Part 1-3: General requirements for
basic safety and essential performance - Collateral standard: Radiation
protection in diagnostic X-ray equipment
IEC 60601-2-28:2017
eq EU:EN IEC 60601-2-28:2019
Medical electrical equipment - part 2-28: Particular requirements for
basic safety and essential performance of X-ray tube assemblies for
medical diagnosis
IEC 60613:2010
eq EU: EN 60613:2010
Electrical and loading characteristics of X-ray tube assemblies for
medical diagnosis
IEC 60613:1989
eq EU: EN 60613:1990
Electrical, thermal and loading characteristics of rotating anode X-
ray tubes for medical diagnosis
IEC 63000:2016
eq EU: EN 63000:2018
Technical documentation for the assessment of electrical and
electronic products with respect to the restriction of hazardous
substances

4 Description
4Technical Description
Print No. R76-020.140.96.15.02
4Description
Intended Purpose Statement under the European Medical Device Regulation 2017/745:
X-ray tube assembly intended to be integrated into X-ray imaging systems for medical purposes
4.1 Intended purpose
This X-ray tube housing assemblies consists of a metallic (e.g. steel, aluminumalloy) case that houses
an X-ray tube to provide appropriate limits for X-ray leakage and adequate insulation to avoid electric
risks during a diagnostic X-ray procedure. It includes sheet lead surrounds at appropriate locations to
shield unwanted X-ray radiation and collimators near the aperture; it is usually filled with oil to prevent
electrical arcs from the high-voltage components of the X-ray tube. The housing also includes
attachment points, cooling means, high-voltage cables, and supports for the tube and cable
receptacles.
This X-ray tube housing assembly is intended to be used in diagnostic X-ray systems for radiographic
and fluoroscopic applications.
Indications
Indication for use of the X-ray tube housing assembly is every clinical indication which requires a
diagnostic X-ray procedure using a diagnostic X-ray system. The specific indications, parts of the body
and the duration of the exposure for which the X-ray tube housing assembly can be used (once or
repeated) are defined by the diagnostic X-ray system in which the X-ray tube housing assembly is inte-
grated.
Contra-indications
For the X-ray tube housing assembly no other contra-indications besides the ones for general
radiologic procedures are currently known. Specific contra-indications might need to be defined by
the system integrator of the diagnostic X-ray system in which the X-ray tube housing assembly is
integrated.
Intended patient population
The X-ray tube housing assembly may be used for each patient who is admitted for an X-ray
examination, from newborn to geriatric. The patient population might need to be restricted on system
level as result of the integration of the X-ray tube housing assembly into a diagnostic X-ray system by
the system integrator.
Intended users
X-ray tube housing assemblies are intended to be integrated into diagnostic X-ray systems by a system
integrator, for whom it is required to have specific technical and medical knowledge and skills,
including but not limited to radiation protection, electrical and mechanical safety and clinical
procedures for which the finalized system is released. Integrated into the diagnostic X-ray system, X-
ray tube housing assembly/ single tank tube assembly are intended to be operated by adequately
trained clinical users. Instructions for use of these devices address exclusively the system integrator
and are not intended being handed over to the clinical operators. All information and advices for the
clinical operator are to be included in the instruction for use and accompanying documents of the
finished diagnostic X-ray system in which the X-ray tube housing assembly is integrated.

4 Description
5Technical Description
Print No. R76-020.140.96.15.02
Undesirable side-effects
Since an X-ray tube housing assembly which is not integrated in a system has no clinical effect, it
consequently has no ide-effects either. Clinical effects and also side-effects are depending on the
design and intended use of the diagnostic X-ray system in which the X-ray tube housing assembly is
integrated and need to be determined on the system level.
4.2 Functional Characteristic
4.2.1 Design
·X-ray tube assembly main parts: X-ray tube, housing, stator, insulation oil, X-ray radiation exit
window and collimator flange (“-F” type)
·X-ray tube main parts: cathode, anode(including target), driving system(including bearing system),
glass enclosure
4.2.2 Characteristic
·Long-term high dose yield
·Single-angle compound anode, black coated
·Focal spots are superimposed
·Compact tube assembly housing
4.3 Explanation of designation
Designation of X-ray
tube assembly
RAY-14_3
RAY-14S_3
RAY-14S_3F
RAY-14_1
RAY-14S_1
Mounted X-ray tube
SV 150/33/78R-S
X-ray tube assembly key word:
RAY-xx_y RAY tube assembly family
14 X-ray Tube assembly for the OEM market with X-ray tube SV150/33/78R-S Housing
90° reverse model (see dimension drawings)
14S X-ray tube assembly for the OEM market with X-ray tube SV150/33/78R-S housing 90°
version (See dimension drawings)
_3 3-phase drive
_1 1-phase drive
F Flange for collimator mounted
X-ray tube key word:
SV SV X-ray tube families for OEM customers
150 Nominal voltage 150 kV
33 Rated power of small focus F1: 33 kW

5 Notes
6Technical Description
Print No. R76-020.140.96.15.02
78 Rated power of large focus F2: 78 kW
R (Rapid) rotary frequency 150/180 Hz
S Siemens adapter
5Notes
5.1 General notes
In the interest of complying with respected legal requirements concerning the environmental
compatibility of our products (protection of natural resources, avoidance of waste) we endeavor to
reuse components and to return them to the production cycle. We guarantee their reliability and
functionality, quality and life of these components by taking extensive quality assurance measures
including all test procedures, just as for brand new components. Reused parts are “qualified as good
as new”.
Siemens Healthcare has performed a conformity assessment in accordance with the MDR for this
component.
The tube assembly is not a sterile product. The housing surfaces are designed for easy
cleaning/disinfection.
Applications with contacts to animal or human tissue or in body cavities are not intended.
Use the original packaging for returning the tube assembly to the manufacturer.
A higher output of the tube assembly can be achieved by optional fan cooling.
Unless otherwise indicated, all load data specified apply to six-pulse, twelve-pulse, multi-pulse or DC
voltage generators.
5.2 Safety information
These safety instructions must be strictly observed!
The X-ray tube assembly must be operated only in agreement with the safety information of this
operator manual. The operator is responsible for compliance with the regulations that apply for the
installation and operation of an X-ray system.
The X-ray tube assembly shall be used only in compliance with its intended use; the instructions of
the operating instructions of the system manufacturer for operation, servicing and care as well as
maintenance of an X-ray system apply. In particular, the tube assembly is not approved for operation
in environments with combustible gas mixtures.
WARNING
X-ray tube assembly works out of specification.
Risk of injuries due to damaging of the X-ray tube assembly!
•The X-ray tube assembly is to use only with specified ratings.

5 Notes
7Technical Description
Print No. R76-020.140.96.15.02
WARNING
Symbols not legible or damaged may cause wrong installation.
Risk of serious injuries or death due to wrong installation!
•Use of the X-ray tube assembly is forbidden if signs of mechanical, electrical or radiation-
related are not legible or damaged.
Use of the X-ray tube assembly is forbidden if related signs are not legible or damaged.
The overloading of X-ray tube may cause damage to internal components and take an excess of X-
ray, so user must ensure that X-ray tube assembly is not overloading.
For monitoring certain operating parameters, the X-ray tube assembly is equipped with means for
preventing a possible overload of or damage to the X-ray tube assembly.
Any manipulation to these safety devices is prohibited. The load limit values listed in this manual
shall not be exceeded.Depending on the operating mode, the tube assembly may reach high
temperatures. Please exercise caution when touching the housing surface.
WARNING
Too high temperature may damage this equipment.
Unexpected contact may cause physical injury.
Risk of burns due to high temperature!
•In accordance with the safety concept of the user and this equipment, the 90°C
temperature sensor must be connected.
For the purpose of achieving high continuous output, the tube assembly is designed for operation up
to 90°C. To avoid thermal overload, the tube assembly is equipped with two temperature switches. The
status of the temperature switches must be queried through the system hardware or software, which
generates an error message in the event of an error. The 70°C temperature switch provides information
on the energetic state of the tube assembly and provides a warning to reduce output and terminate
the current examination. Depending on the system configuration, such information can also be
provided by a load computer. The 90°C temperature switch provides the signal to cut off the power
supply to the tube assembly. Any treatment for these safety parts is prohibited.
The maximum electric load capacity of both temperature switches intended by the tube assembly
manufacturer is 230V/0.5A. The connection cables must be designed for a continuous thermal load
capacity of 100°C.
WARNING
Wrong installation may cause death or serious physical injury.
Risk of electric shock!
•To avoid the risk of electric shock, this equipment must only be connected to a supply
with protective earth.

5 Notes
8Technical Description
Print No. R76-020.140.96.15.02
Prior to an examination as the user’s responsibility to ensure that all safety features are functional and
that the product is ready for operation.
Operation of X-ray tube assembly must be terminated instantly when defect detected and notice
customer service personnel immediately.
Handle with care!
High vacuum pressure parts inside X-ray tube assembly, implosion may be caused by careless treatment
such items as impact, striking, dropping, etc.
Dismounting this equipment without authorization is not permitted.
5.3 Radiation protection
This product fulfills the requirements of IEC 60601-1-3. This X-ray tube assembly emits X-ray radiation
in operation.
WARNING
Untrained person may cause person injury or system damage!
Risk of injury due to wrong operation by untrained person!
•The X-ray tube assembly should be operated only in agreement with the safety instructions
of this operator manual.
5.4 Operating conditions
•Conditioning the X-ray tube assembly
The following program must be performed by the customer service during initial startup of the X-ray
tube assembly, or following extended system down time during a service call, as well as when there
are operating malfunctions of the system with a suspicion that there is electrical instability of the X-
ray tube. When the X-ray tube assembly is delivered as a pre-installed system, perform the procedure
once again prior to acceptance of the system by the customer.
•After extended idle time of the X-ray tube (more than 2 weeks), it is recommended that the
operator perform an abbreviated warm-up procedure as described under item 1 and 3.
Importance:Ensure that adequate radiation safety precautions are taken an protect any
existing image intensifier against radiation (e.g. lead apron in the beam path).
1. Conditioning program
(To be carried out when a new X-ray tube assembly is installed and
CAUTION
Relevant physiologic effects may cause harm to patient.
System manufacture should take proper protection to avoid ionization radiation.
Risk of X-Ray radiation
•Only correspondingly qualified and trained personnel are allowed to operate the X-ray
tube assembly.

5 Notes
9Technical Description
Print No. R76-020.140.96.15.02
after prolonged downtime (more than 2 weeks) for the start-up with a cold anode)
Switch on fluoroscopy at 40 kV.
Power up to 110 kV/2 mA within 5 minutes and hold for 10 minutes.
5 minutes cooling pause! Continue with exposure mode!
2. Conditioning program (recommended for start-up with a cold anode)
Switch on fluoroscopy at 40 kV.
Power up to 110 kV/2 mA within 1 minutes and hold for 10 minutes.
5 minutes cooling pause! Continue with exposure mode!
To be carried out after prolonged downtime (more than 2 weeks).
3. Select exposure mode with F2. Note constant load curve!
70 kV / 100 mAs - 2 exposures
Pause after each exposure  23 s
90 kV / 300 mAs - 2 exposures
Pause after each exposure  90 s
109 kV / 300 mAs - 2 exposures
Pause after each exposure  109 s
4. Perform only for installation of a new X-ray tube assembly
Select exposure mode with F2. Note constant load curve!
125 kV / 50 mAs - 2 exposures
Pause after each exposure  21 s
150 kV / 50 mAs - 2 exposures
Pause after each exposure  25 s
•If the tube tends to repeatedly and strongly "arc", abort the procedure
(risk to sensitive parts of the system electronics). The customer service must be notified.
•If the downtime of X-ray tube assembly is too long, it’s better to do tube-adjust process
according to the tips of 1 & 3.
5.5 Electromagnetic Compatibility (EMC)
Radio signals of radio-frequency communication devices such as mobile telephones or other mobile
radio devices can influence the correct functioning of a medical-electrical device.
This X-ray component is subject to special precautionary measures with regard to EMC and may be
installed and put into operation only according to the installation instructions.
This medical electrical component cannot be operated on its own, but only in combination with a
generator or a radiological diagnostic system. According to Chinese and IEC standards, the proof of
compliance with the requirements of IEC 60601-1-2 with regard to electromagnetic compatibility
should be provided by system manufacturer.
5.6 Maintenance
The X-ray tube assembly is maintenance free. There are no hazards whatsoever for persons and
environment in the case of proper use.
5.7 Checks
The following checks must be performed at regular intervals.
If any announced damage was found don’t start any operation with the system. Contact service
personnel immediately.

5 Notes
10 Technical Description
Print No. R76-020.140.96.15.02
5.7.1 Visual check with the generator turned off
·Check the X-ray tube assembly for external damage.
·Check all exposed cables to the X-ray tube assembly to ensure that the outer insulation is
undamaged – do not touch during operation!
·Check the X-ray tube assembly for oil leakages daily.
5.7.2 Mechanical check with the generator turned off
·Check the fastening of the freely accessible X-ray tube assembly. The X-ray tube assembly must be
firmly seated in the holder - ensure that it is not loose!
·Check the fastening of the freely accessible collimator, the collimator must be firmly seated on the
flange – ensure that it is not loose!
·Check all exposed high-voltage plugs to ensure that they are firmly seated, tighten the mounting
nuts.
5.7.3 Electrical check
·In accordance with IEC 60601-2-28 the shielding of exposed high-voltage cables between the
metal housing of the X-ray generator and the X-ray tube assembly is limited to a maximum of 1Ω
/m. Conformance must be checked by a measurement. If you have concluded a maintenance
contract, this measurement will be performed by the service.
5.8 Disposal
The X-ray tube assembly as well as the tube contains materials such as oil and heavy metals for
which environmentally friendly and proper disposal in accordance with the valid national legal
regulations must be assured. Disposal as domestic or industrial refuse is forbidden.
This equipment manufacturer possesses the required technical knowledge and will takes the tube
assembly back for disposal. Please contact your X-ray tube assembly manufacturer for this purpose.
CAUTION
Improper disposal due to lack of knowledge.
Risk of environmental pollution!
•The manufacturer possesses the required technical knowledge and will take back the X-
ray tube assembly for disposal.
5.9 Installation notes for personnel
Only qualified staff is permitted to unpack, install and operate the X-ray tube assembly.
Follow instructions for installing, handling, tune-up etc. and/or reference to the operating instruction
of the X-ray system.

5 Notes
11 Technical Description
Print No. R76-020.140.96.15.02
5.9.1 Radiation outlet block
RAY-14_3 RAY-14_1
RAY-14S_3 RAY-14S_1
RAY-14S_3F
The permissible weight for all components that are mounted on the radiation outlet block may together
not exceed 300 N.

5 Notes
12 Technical Description
Print No. R76-020.140.96.15.02
Flange relevant information referred to Section 9.
Dimension in mm
High-voltage connector on the cathode side
High-voltage connector on the anode side
WARNING
Breakage of the radiation outlet block may caused by mechanical load too high.
Risk of Physical Injury due to falling components!
•The permissible weight for all components that are mounted on the radiation outlet block
can not exceed 300 N.
5.9.2 X-ray tube assembly connection plates
The electrical connections of stator and sensors are located under the decoration cap at anode side
on connection plate (see following views). For connecting cables the decoration cap has to be
removed and follow label as announced under decoration cap. Before operating XTA decoration cap
has to be mounted again in an orientated way to inlet of cables.
RAY-14S_3
RAY-14S_3F
RAY-14S_1

5 Notes
13 Technical Description
Print No. R76-020.140.96.15.02
See also Section 8 "Connection diagrams"
Note
•Connection of the signal cable to the temperature switches with a flat plug 6.3x0.8
suitable for the cable cross-section used.
•Connection of the protective conductor cable with a cable lug (closed) suitable for
the cable cross-section used and for M5 screw.
•Connection of the stator cable with cable lugs (open or closed) suitable for the cable
cross-section used and for M4 screw.
RAY-14_3
RAY-14_1

5 Notes
14 Technical Description
Print No. R76-020.140.96.15.02
Stator key values
3-phase stator
RAY-14_3 RAY-14S_3 RAY-14S_3F
Test point
0 - I
0 - II
I - II
Winding resistance
22.8...24.8 
22.8...24.8 
22.8...24.8 
Max. permissible operating voltage (run-up)
400V +10%
Braking voltage
70 V DC
Run-up time (depending on starter system)
approx. 1.0 s
1-phase stator
RAY-14S_1 RAY-14_1
Test point
0 –I (joint work)
0 –II (joint help)
Winding resistance
20.4...22.6
48.9 ... 54.1 
Max. permissible operating voltage (run-up)
230V +10%
Recommended operating voltage(run-up)
160V±10%
Braking voltage
70 V DC
Run-on voltage in exposure mode
80 V rms
Run-on voltage in fluoroscopy
20 V –40 V rms
Run-up time (depending on starter system)
approx. 1.2 s
In 150Hz or 180Hz operation of the tube assembly it is mandatory to brake the anode to at least
25Hz after loading. In 50 Hz or 60 Hz operation of the tube assembly, braking to 25 Hz is
recommended.
Recommended phase-shift capacitor values for 1-phase stators
for 50 Hz anode rotation: 43 µF
for 60 Hz anode rotation: 30 µF
for 150 Hz anode rotation: 10 µF
for 180 Hz anode rotation: 7 µF
Different frequency converters can be used for the drive.
The stated values must be viewed only as reference values. Check the run-up time and the speed at
the first start-up. Exposure release is permitted only after the nominal speed is reached.
To avoid unnecessary development of heat from the stator, the electrical maximum values must be
used for as short a time as possible.
The stator connection cables must be designed for a continuous thermal load capacity of 100°C.
5.9.3 High-voltage connections
The X-ray tube assembly is provided with a 3-pin high-voltage socket on the anode and the cathode
sides.
This requires appropriate high-voltage cables. 30 m cable length should not be exceeded. The
enclosed corona disks must be covered with silicone oil and slipped over the plug contacts.

5 Notes
15 Technical Description
Print No. R76-020.140.96.15.02
5.9.4 Tube assembly filtration
The total tube assembly filtration is  2.5mm Al equivalent and it is including additional filtration.
The added filters consist of three filter disks (3x 0.5mm Al).
Note
Lead cone must be remounted again after removing filter disks for fitting the
collimator.
The filter disks and the lead cone for image intensifier adaptation are replaced as follows:
Using the tool, unclip the locking ring
from the groove of the screw ring and clip
it back on after adjustment
Aluminum filter disks 0.5 mm thick
Lead cone
Screw ring with groove
S / I = Small focal spot
L / II = Large focal spot
C / 0 = Neutral conductor
Guide groove
Guide groove
L / II S / I
C / 0

5 Notes
16 Technical Description
Print No. R76-020.140.96.15.02
CAUTION
A contact with unprotected lead is possible during the replacement of the filter plates. The inside
of the protection cone in the radiate exit window is unpainted.
Risk of contamination in case of skin contact with lead!
•Be careful with unprotected lead.
•Do not damage the varnish protection on the outside of the lead part.
5.10 Pictograms
5.10.1 Symbol of protective earth conductor
A protective earth conductor symbol is cast on metal surface near connection point on the
connecting plate at anode side of the tube assembly.
5.10.2 Warning symbol of dangerous voltage
“Warning” symbol of dangerous voltage is affixed on the connecting plate.
5.10.3 Symbols to mark cathode and anode of HV-connection horns
A pictogram as symbol to mark the HV-connecting horns concerning anode with plus sign and
cathode with minus sign on the horns of the X-ray tube assembly. Symbols are located on respective
horn.
HV-connection horn – anode side HV-connection horn – cathode side
5.10.4 Symbol of operating instructions
Symbol remark operator referring to operating instructions before operation is needed. Symbol
locate on surface of this equipment nearby cathode socket.