Siemens MOBILETT XP Installation Manual
Moser
MOBILETT XP Digital
Installation and Start-up
System
SP
Installation and Start-up
01818447
Print No.:
Replaces: SPR8-230.814.30.02.02
SPR8-230.814.30.03.02
© Siemens AG
The reproduction, transmission or use
of this document or its contents is not
permitted without express written
authority. Offenders will be liable for
damages. All rights, including rights
created by patent grant or registration
of a utility model or design, are
reserved.
English
Doc. Gen. Date: 11.05
2005
2 Revision / Disclaimer
1Revision / Disclaimer
Document revision level
The document corresponds to the version/revision level effective at the time of system
delivery. Revisions to hardcopy documentation are not automatically distributed.
Please contact your local Siemens office to order current revision levels.
Disclaimer
The installation and service of equipment described herein is to be performed by qualified
personnel who are employed by Siemens or one of its affiliates or who are otherwise
authorized by Siemens or one of its affiliates to provide such services.
Assemblers and other persons who are not employed by or otherwise directly affiliated
with or authorized by Siemens or one of its affiliates are directed to contact one of the
local offices of Siemens or one of its affiliates before attempting installation or service procedures.
MOBILETT XP Digital SPR8-230.814.30.03.02 Siemens AG
11.05 CS SD 24
Page 2 of 70
Medical Solutions
Table of Contents 3
1- 0Table of Contents
1 _______ General ________________________________________________________ 6
Performance of work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Text labeling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Icons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Information on product safety and protective measures. . . . . . . . . . . . . . . . . . . . . . . . . . 9
System overview - user . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
System overview - service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2 _______ General start-up information _____________________________________ 17
Required documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Required tools, test equipment and aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Start-up information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Information on the protective conductor resistance test. . . . . . . . . . . . . . . . . . . . . . . . . 20
Information on measuring the leakage current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Information on measuring the patient leakage current . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3 _______ Unpacking and visual inspection__________________________________ 27
Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Visual inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Mechanical function test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Cable winch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Support arm movements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Single tank and collimator movements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4 _______ Checking the shock sensors _____________________________________ 30
Checking the shock sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5 _______ Start-up _______________________________________________________ 31
Line voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Controls and displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Battery charging operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Exposure operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Lead apron holder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Collimator function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Calibrating the CXDI detector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Exposure release with high voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Checking the preparation limit time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Release an exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Manual exposure termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Light field/radiation field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Siemens AG SPR8-230.814.30.03.02 MOBILETT XP Digital
Medical Solutions
11.05 CS SD 24
Page 3 of 70
4 Table of Contents
Evaluation: light field to radiation field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Configuration of the imaging system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Checking the image quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
DAP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Remote control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6 _______ DHHS _________________________________________________________ 42
DHHS tests (USA only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Test of kV accuracy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
kV meter method: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Oscilloscope method: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Test of mAs accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Oscilloscope method: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
mAs meter method: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Reproducibility test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
7 _______ Backup _______________________________________________________ 51
Backup procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Backup of hard disks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Backup of Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
8 _______ Remaining work ________________________________________________ 54
Final activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Protective conductor test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Leakage current measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Patient leakage current measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
9 _______ Start-up report _________________________________________________ 57
MOBILETT XP Digital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
10 ______ DHHS report ___________________________________________________ 59
MOBILETT XP Digital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
11 ______ Electrical safety/reports _________________________________________ 61
Protective conductor resistance/report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Measuring circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Remarks: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Leakage current/report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Measuring circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Remarks: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Patient leakage current/report. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Measuring circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
MOBILETT XP Digital SPR8-230.814.30.03.02 Siemens AG
11.05 CS SD 24
Page 4 of 70
Medical Solutions
Table of Contents 5
Remarks:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
12 ______ Changes to Previous Version_____________________________________ 69
Siemens AG SPR8-230.814.30.03.02 MOBILETT XP Digital
Medical Solutions
11.05 CS SD 24
Page 5 of 70
6 General
1General
2-
Performance of work 0
Any technician duly assigned by the local Siemens office is authorized to perform maintenance and service work.
U Certain tasks may also be performed by other technical personnel (e.g. the customer's
hospital technicians). These tasks are marked by this icon.
It is absolutely necessary to
• follow all instructions in textual and graphic form and to
• use the specified tools, test equipment and aids.
You can also contact your national Siemens Uptime Service Center for support.
MOBILETT XP Digital SPR8-230.814.30.03.02 Siemens AG
11.05 CS SD 24
Page 6 of 70
Medical Solutions
General 7
Text labeling 0
DANGER
WARNING
CAUTION
NOTICE
DANGER indicates an immediate danger that if disregarded will
cause death or serious physical injury.
¹
WARNING indicates a possible danger that if disregarded can
cause death or serious physical injury.
¹
CAUTION used with the safety alert icon indicates a possible danger that if disregarded will or can lead to minor or moderate physical injury and/or damage to property.
¹
NOTICE used without the safety alert icon indicates a possible
danger that if disregarded can or will lead to an undesirable outcome or state other than death, physical injury or property damage.
¹
NOTE
NOTE is used to indicate information that explains the proper way
to use devices or to carry out a process, i.e., provides pointers and
tips.
Siemens AG SPR8-230.814.30.03.02 MOBILETT XP Digital
Medical Solutions
11.05 CS SD 24
Page 7 of 70
8 General
Icons 0
X Warning about ionizing radiation or radioactive substances. Tests and adjustments that
must be performed with the radiation switched on are indicated by this radiation warning
icon.
.
V Dangerous electrical voltage > 25 VAC or > 60 VDC.
C Caution! General hazard warning.
E ESD: Warning about electrostatically sensitive components.
P Report icon. Used to indicate entries in certificates.
U Certain tasks can also be performed by other technical personnel (e.g. the customer's
hospital technicians).
Fig. 1:
Certain sections apply only to the USA. These sections are marked with this icon.
MOBILETT XP Digital SPR8-230.814.30.03.02 Siemens AG
11.05 CS SD 24
Page 8 of 70
Medical Solutions
General 9
Information on product safety and protective measures 0
DANGER
DANGER
While performing maintenance and service work
on the MOBILETT XP Digital with the covers removed,
it is possible to come into contact with components under voltage.
Carelessness can result in death or serious bodily injury.
When conducting maintenance and service work, follow:
¹ the product-specific safety information contained in the
technical documentation,
¹ and the general safety information (TD00-000.860.01...).
Remove or install components only if:
¹ - The system is switched off, and
¹ - The capacitors are discharged, and
¹ - The ESD guidelines are followed, and
¹ - The batteries have been disconnected.
DANGER
Releasing radiation:
¹ Checks and settings for which radiation must be
released are marked with the radiation warning symbol.
¹ Radiation protection measures must be used.
Siemens AG SPR8-230.814.30.03.02 MOBILETT XP Digital
Medical Solutions
11.05 CS SD 24
Page 9 of 70
10 General
DANGER
To avoid electrical shock from components under voltage, also be
aware that:
The capacitors of the capacitor bank can be electrically charged
even when the system is switched off and the power cable is disconnected!
Individual capacitors of the capacitor bank may have been disconnected from the discharging circuit, erroneously or as a result of
failure, and can still be electrically charged!
Disconnect the battery blocks in the XP Digital prior to maintenance and service work!
Carelessness can result in death or serious bodily injury.
¹ Make sure that no parts or tools fall into the unit;
¹ Do not touch potentially dangerous
components(Fig.2/p.11)
¹ If loose parts must be removed from the unit, use only
insulated tools;
¹ Protect the work area so that no other persons are able
touch the unit while the covers are open or removed!
• Switch the unit off before servicing or maintenance. Always disconnect the power plug
first.
• Make sure that the main switch is switched off.
• The capacitor bank discharges to < 40 V in approx. 15 minutes.
¹ The safety covers can be removed after this period has elapsed.
• Prior to performing any work, it must be verified that areas with dangerous voltage are
voltage-free (Fig.2/p.11).
MOBILETT XP Digital SPR8-230.814.30.03.02 Siemens AG
11.05 CS SD 24
Page 10 of 70
Medical Solutions
General 11
Fig. 2: Locations with dangerous voltage
V With housing covers open and safety covers removed.
Back:
Left side:
Right side:
CAUTION: DC voltage (300 V) from the battery block to PCB D982!
Always disconnect the battery plug from BK1-BK4.
CAUTION: DC voltage (440V) at capacitor bank (D927)
CAUTION: DC voltage (440V) directly at the capacitor bank!
CAUTION: DC voltage (440V) directly at the capacitor bank!
CAUTION: AC voltage (> 100 V or > 60 V - half line voltage) at power supplies U1 and U2 when the power cord is connected.
Siemens AG SPR8-230.814.30.03.02 MOBILETT XP Digital
Medical Solutions
11.05 CS SD 24
Page 11 of 70
12 General
System overview - user 0
Fig. 3: User overview
(1) Hanger for lead apron (13) Castors
(2) Articulated arm (14) Console with chassis
(3) Sensor for IR remote control (optional) (15) IR remote control (optional)
(4) DAP display (optional) (16) Holder for IR remote control (optional)
(5) Exposure switch (S27) (17) Potential equalization connector
(6) Control panel and display field (18) Transport safety device
(7) Transport handle/motor control (19) Stand column
(8) Hand/parking brake handle (20) DAP ionization chamber (optional)
(9) Main switch (21) Collimator
(10) Power cord (22) X-ray tube assembly
(11) Brake handle for cable winch (23) Light localizer buttons (two sides)
(12) CXDI-50G detector holder n.a.
MOBILETT XP Digital SPR8-230.814.30.03.02 Siemens AG
11.05 CS SD 24
Page 12 of 70
Medical Solutions
General 13
Orientation 0
Fig. 4: Top view of system_01
System orientation to clarify the technical description
Abbreviations Explanation
Uv User view - back (User view)
L Left side of unit (left)
R Right side of unit (right)
F Front (front)
fw Front wheels (front wheels)
sa Support arm (support arm)
T Tube (single tank)
C Multileaf collimator (collimator)
dd DAP display (dose display)
NOTE
These orientation indicators are used in all technical documents.
Descriptions are always from the “forward travel” user view. Always use this perspective when communicating with third parties
(e.g., USC/HSC).
Siemens AG SPR8-230.814.30.03.02 MOBILETT XP Digital
Medical Solutions
11.05 CS SD 24
Page 13 of 70
14 General
System overview - service 0
Fig. 5: Schematic overview of XP Digital
MOBILETT XP Digital parts
Abbreviations Explanation
D916/D919 CPU board/X-ray interface
D917 Galvanic separation for S27/DAP/remote
Rcb Remote control board (remote control option)
SW1 Key switch, power ON/OFF
Z1 Line filter
C1 (R1) Capacitor for inverter with discharge resistor (front left side / not
shown here)
C2 (R2) Starter capacitor with discharge resistor
R3-R5, R6 (X9) Discharge resistor capacitor bank (front right side)
Capacitor bank 12 x 10 mF capacitors, mounted on D972
K22 Main relay
MOBILETT XP Digital SPR8-230.814.30.03.02 Siemens AG
11.05 CS SD 24
Page 14 of 70
Medical Solutions
General 15
D909 X-ray display and keyboard
U1 +5V / ± 15V power supply
U2 +24V power supply
D927 Power supply
D952 Charging board capacitor bank (behind D927)
D962 kV inverter (behind D927)
D972 Capacitor bank board (behind D927)
Sa Support arm adjusting spring
lw/rw/sw Support wheels and back wheels
D982 Battery charger
D102 Motor drive control
BK1 / BK2 Battery block, left
BK3 / BK4 Battery block, right
mr/ml Motor right / motor left
CXDI PC Laptop for the imaging system
CXDI Detector CXDI flat detector
Power box Connecting unit between CXDI PC and CXDI detector
U3 DC converter 300V DC/24V DC
U4 Inverter 24V DC/220V AC
U5 Power supply CXDI PC (laptop)
Optional parts for MOBILETT XP Digital (not shown in illustration)
DAP chamber Dose area product measuring chamber
D991 DAP adapter card (inside the collimator cover)
DAP display DAP display board (in the lower arm segment cover)
Siemens AG SPR8-230.814.30.03.02 MOBILETT XP Digital
Medical Solutions
11.05 CS SD 24
Page 15 of 70
16 General
Cleaning 0
• Always disconnect the MOBILETT from the power supply and switch it off before clean-
ing or disinfecting it.
• Never use abrasive cleaners or cleaning agents with solvents (e.g. cleaning solutions,
alcohol or spot removers), since they may damage housing surfaces.
• Do not spray anything on or into the unit.
• Wipe off the MOBILETT with a cloth moistened in water or a diluted, lukewarm solution
of water and dishwashing liquid.
For more information, see the chapter on "Cleaning and disinfection” in the operating
instructions.
MOBILETT XP Digital SPR8-230.814.30.03.02 Siemens AG
11.05 CS SD 24
Page 16 of 70
Medical Solutions
General start-up information 17
2General start-up inform ation
3-
Required documents 0
P Check the documents delivered for completeness.
Ring binders containing user documents:
• Operator Manual SPR8-230.621.30..
Ring binders containing technical documents:
• General Safety Information TD00-000.860.01...
• Installation and Start-up SPR8-230.814.30...
• Software Installation SPR8-230.816.30...
• Quality Assurance SPR8-230.820.30...
• Maintenance Protocol SPR8-230.832.01...
• Wiring Diagram SPR8-230.844.30...
• Disposal Instructions SPR8-230.861.30...
• Manufacturer's certificates n.a.
The MOBILETT XP Digital password list can be obtained by accessing the “Knowledgebase” or from the Troubleshooting Guide SPR8-230.840.30...
• MOBILETT XP Digital password list n.a.
The following additional documents are required to configure DICOM Hardcopy:
• General Hardcopy Camera Information SPR8-230.814.40..
Siemens AG SPR8-230.814.30.03.02 MOBILETT XP Digital
Medical Solutions
11.05 CS SD 24
Page 17 of 70
18 General start-up information
Required tools, test equipment and aids 0
• Standard service tool kit n.a.
• Measuring device for leakage current and patient
leakage current, e.g.:
51 38 727 Y0766
• Grounding measuring device, e.g.: SECUTEST 44 15 899 RV090
• 2.1 mm precision copper filter or, alternatively,
copper filter set (44 06 120 RV090)
99 00 598RV090
• Dose measuring device, e.g.: PTW DIADOS 97 17 612 Y0388
• Densitometer, e.g.: DensiX-LE 52003 49 51 286Y0388
• Digital multimeter, e.g.: Fluke 8060 A 97 02 101 Y4290
• Centering cross 96 60 051 RE999
• Test phantom, e.g., PTW Normi 13 n.a.
• At least 3 blank writable CDR's n.a.
• Storage oscilloscope (± 2.5 % accuracy) or kV meter.
• Storage oscilloscope (±2.5 % accuracy) or mAs meter.
MOBILETT XP Digital SPR8-230.814.30.03.02 Siemens AG
11.05 CS SD 24
Page 18 of 70
Medical Solutions
General start-up information 19
Start-up information 0
• The start-up procedure described here corresponds to a functional test. All adjust-
ments and calibrations are performed at the factory. The MOBILETT XP Digital is ready
for operation on completion of the start-up report.
• The top cover has to be removed to access the CXDI PC or perform measurements on
D916. Place the top cover on a table or similar surface. All cables remain connected.
• The unit can be connected to line voltages of 100-130 V ( ± 10%) or 200-240 V ( ±
10%). The unit automatically adjusts to the existing line voltage.
NOTE
Observe the nominal current of the fuses for the on-site power
connections:
- 15A slow-blow (on-site) for 100-130V ± 10% or
- 15A slow-blow (on-site) for 200-240 V ± 10% line voltage.
The power cable for this device is equipped with a standard safety
plug.
Attach a power plug that is compliant with local standards if necessary.
• Following start-up, country-specific tests must be performed if necessary.
For example:
Acceptance test according to §16 of the X-ray Ordinance (Germany):
Use the measurements in the test certificate provided as the initial values for the required
measurements.
The following values were measured by the manufacturer; refer to the test certificate:
- Brightness of the light localizer
- Filter values (Al equivalent for tube assembly and collimator)
- Coincidence of light field and radiation field
- Accuracy of the tube voltage
- Accuracy of the kV value steps
- Accuracy of the mAs values
- Reproducibility of dose values
• The test/measured values marked by the report icon must be entered in the start-up re-
port located at the end of this manual.
NOTE
Siemens AG SPR8-230.814.30.03.02 MOBILETT XP Digital
Medical Solutions
Recording information immediately during start-up saves time.
Fill in the report form after completing each task.
The start-up report is a component of this documentation.
Page 19 of 70
11.05 CS SD 24
20 General start-up information
Information on the protective conductor resistance test 0
Observe the instructions in the "Safety Rules for Installation and Repair"
(ARTD-002.731.17 ...).
The protective conductor resistance of 0.2 ohms must not be exceeded.
Initial measurement
Perform the protective conductor test after completion of all work.
The measurement must be performed according to DIN VDE 0751, Part 1 (see ARTD
Part 2). The protective conductor resistance for all touchable conductive parts must be
measured during the normal operating state of the system.
Make sure that control cables or data cables between the components of the system are
not mistaken for protective conductor connections.
During the measurement, move the power cable and additional connection cables with an
integrated protective conductor section by section to detect cable breaks.
The protective conductor resistance must not exceed 0.2 Ohms.
The values must be recorded as initial measurements, and the measuring points noted, in
the protective conductor resistance report.
The measuring procedure and the measuring device used (designation and serial number) must also be documented.
Fig. 6: Measuring circuit for measuring the protective conductor resistance for units that are
disconnected from power, in compliance with DIN VDE 0751-1/2001-10, Fig. C2.
Pos. 1 = System
Pos. 2 = Application part type B (if available)
Pos. 3 = Measurement setup (integrated into measuring device)
Repeat measurement
MOBILETT XP Digital SPR8-230.814.30.03.02 Siemens AG
11.05 CS SD 24
Page 20 of 70
Medical Solutions
General start-up information 21
In the case of maintenance or repairs, perform the protective conductor resistance measurement again.
Document and assess the values determined in the repeat measurement.
The measurement must be performed according to DIN VDE 0751, Part 1 (see ARTD
Part 2). The protective conductor resistance for all touchable conductive parts must be
measured during the normal operating state of the system.
Make sure that control cables or data cables between the components of the system are
not mistaken for protective conductor connections.
During the measurement, move the power cable and additional connection cables with an
integrated protective conductor section by section to detect cable breaks.
The protective conductor resistance must not exceed 0.2 Ohms.
The values determined in the repeat measurement must be recorded and assessed, and
the measuring points noted, in the protective conductor resistance report.
The measuring procedure and the measuring device used (designation and serial number) must also be documented.
NOTE
For evaluation purposes, the first measured value and the values
documented during maintenance or safety checks must be compared to the measured values. A sudden or unexpected increase
in the measured values may indicate a defect in the protective conductor connections (protective conductor or contacts) - even if the
limit value of 0.2 ohms is not exceeded.
Siemens AG SPR8-230.814.30.03.02 MOBILETT XP Digital
Medical Solutions
11.05 CS SD 24
Page 21 of 70
Loading...