Siemens Fluorospot H HK Maintenance Instructions

FLUOROSPOT H/HK

Maintenance Instructions

AX

FLUOROSPOT H/HK with VID. SX

The Maintenance Protocol
R41-020.105.04.01.02
is required for these Instructions

Register 8 English
Print No.: RX41-020.101.04.01.02 Doc. Gen. Date: 05.97

Replaces: RX41-020.101.02.01.02

© Siemens AG 1997

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.

0 - 2 Revision

Chapter Page Revision

all all 01

FLUOROSPOT H/HK Register 8 RX41-020.101.04 Page 2 of 4 Siemens AG
Rev. 01 05.97 TD AX 5 Medical Engineering

Contents 0 - 3

Page

1 _______Requirements__________________________________________________ 1 - 1

General Remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1

Required Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1

Required Test Equipment and Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 2

Explanation of Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 2

2 _______VIDEOMED SX _________________________________________________2 - 1

Safety Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1

Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1

3 _______FLUOROSPOT H/HK ____________________________________________ 3 - 1

External Visual Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1

Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1

Inspection of the internal head vents . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1

Monitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1

Function Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 2

4 _______Image Quality Test______________________________________________ 4 - 1

General Remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 1

Final Work Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 24

Generator Fluoro Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 24

SIMOMED H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 24

Function Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 24

5 _______Changes to Previous Version_____________________________________ 5 - 1

Siemens AG Register 8 RX41-020.101.04 Page 3 of 4 FLUOROSPOT H/HK
Medical Engineering Rev. 01 05.97 TD AX 5

0 - 4 Contents

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Rev. 01 05.97 TD AX 5 Medical Engineering

Requirements 1 - 1

1Requirements

1.1 General Remarks

These instructions describe maintenance of the VIDEOMED SX television systems and of
the FLUOROSPOT H/HK with the following image quality test.

1.2 Required Documents

• Completed IQ Test Certificatel RXD0-000.037.01...

• Maintenance Protocol RX41-020.105.04...

• IQ Test Procedure RXD0-000.074.01...

• Speed Info ”FLUOROSPOT H: Passwords” RX22-95

• SIMOMED H Adjustment Instructions RA52-040.071.01

• SIMOMED H Service Note RX52-040.076.17...

• TI 236 VII (Procedures and Checks following Installation,

Repair, Update and Maintenance Work)

• Service Note (Handling of optically active surfaces) RA0-000.076.17

RA0-000.012.20

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Medical Engineering Rev. 01 05.97 TD AX 5

1 - 2 Requirements

1.3 Required Test Equipment and Aids

• Service PC; conforming to specifications of ARTD,

Part 1; 3.0

• ST320 Terminal Emulation program 97 04 586 Y4364

• Service cable, 5m 99 00 440 RE999

• Digital multimeter (e.g. Fluke 8060A) 97 02 101 Y4290

• mAs meter (Siemens) 81 60 400 RE999

• Cu strips, 17µm 11 67 662 G5247

• Resolution test, Type 41 28 71 820 RE999

• 2.1 mm precision radiation filter 99 00 598 XE999

• Copper filter set 44 06 120 RV090

• TV Dynamik Test Kit 37 90 156 X1963

• Mavo monitor 97 02 432 Y0526

• Tomo block with resolution test 44 06 054 RV090

• Oscilloscope

>50 MHz with delayed time base and retriggering of
second time base (e.g. Tektronix 2232)

• Lens brush 47 13 582 GE999

• Lens cleaning cloth 47 03 930 GE999

• Ground wire test instrument 44 15 899 RV090

97 02 234 Y3155

1.4 Explanation of Symbols

- Radiation is switched on. The appropriate protective measures should be taken.

- Enter the measured values in the Maintenance Protocol .

FLUOROSPOT H/HK Register 8 RX41-020.101.04 Page 2 of 2 Siemens AG
Rev. 01 05.97 TD AX 5 Medical Engineering

VIDEOMED SX 2 - 1

CAUTION

2 VIDEOMED SX

2.1 Safety Inspection

SI Checking the Camera Mount.

SI Checking the Camera Housing

Check the camera housing for good condition; replace if damaged.

SI Checking the Ground Wire

Carry out the ground wire check of the FLUOROSPOT H / HK per TI 236 VII, but only
after concluding all maintenance work. Ground wire resistance: max. 0.2 Ohm.

2.2 Maintenance

PM Camera Optics

• Loosen the knurled screws on both sides of the camera mount and remove the camera

with the mount (Caution: do not expose the camera optics to bright light).

To clean the light path:

Do not use: Recommended:

• Compressed air • Soft hair brush with protective cap

• Lens leather cloth, window

cleaning cloth

• Paper (also lens paper) • Soft, lint-free cloth (fresh handkerchief which

• Cleaning paste

• Cleaning solvent

Remove dust with the brush; when doing so, do not exert any pressure on the brush.
Carefully wipe away any residue with a suitable cloth.
Breathing on the surface can be helpful; do not get any saliva on optical surfaces.
For further information, see Service Note RA0-000.076.17...

PM CCU

Check all optically active surfaces (I.I. lens, mirror, TV camera
lens and multiplier lens) for dust and dirt and, if needed, clean.

(47 13 582 GE999)

• Lens cleaning cloth (47 03 930 GE999)

has been washed several times)

• Remove any dust that has collected in the CCU.

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Medical Engineering Rev. 01 05.97 TD AX 5

2 - 2 VIDEOMED SX

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FLUOROSPOT H/HK 3 - 1

3 FLUOROSPOT H/HK

3.1 External Visual Inspection

PM Check the Control Console for Damage.

3.2 Maintenance

PM Opening the Unit

PM Remove dust that has collected on the inside of the unit

3.3 Inspection of the internal head vents

PM Check the fan for proper function.

3.4 Monitors

PM Cleaning the Monitor Screens

- To clean the non-glaring monitor screen, which is recognizable by the mat surface, use
a cloth dampened with plain water .
Clean any stubborn dirt with pure alcohol or a mixture of 1/3 alcohol with 2/3 distilled
water.

- Immediately after cleaning with the items described above, wipe the screen dry with a
soft cotton cloth.

- Soiling, e.g. contrast medium residue, should be removed immediatel.

- Under no circumstances should acidic or caustic agents be used. These can damage
the picture tube.

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Medical Engineering Rev. 01 05.97 TD AX 5

3 - 2 FLUOROSPOT H/HK

3.5 Function Inspection

PM Checking / Read Out the Error Log

• Connect the Service PC to the FLUOROSPOT with the service cable.

• Switch on the FLUOROSPOT.

• Enter the "Service" operating mode.

• The main menu appears after entering the password.

• Use the arrow keys on the keyboard of the Service PC to select ERROR LOG in the

MAIN menu.

ERROR Logs

ERROR LOG

A LIST FILES
B SELECT FILES
C TYPE FILE
D TRANSFER FILE TO FLOPPY
E
F
G
H
I
J
K
L
M FORMAT 1.44Mb FLOPPY
N
O

- LIST FILES displays a list of the error files in the Service PC.

- A file can be selected for view or transferred to a floppy disk using SELECT FILES.

- TYPE FILE displays the selected error protocol on the Service PC screen.

- TRANSFER FILE TO FLOPPY transfers a selected file to a floppy disk.

- A floppy disk can be formatted from this menu by using FORMAT 1.44Mb FLOPPY.

• Disconnect the Service PC.

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Rev. 01 05.97 TD AX 5 Medical Engineering

Image Quality Test 4 - 1

4 Image Quality Test

4.1 General Remarks

• The image quality test requires that an image quality acceptance test (IQ Test

Certificate) be carried out on the system.

• The test makes it possible to carry out a quick check of the image quality.

• From the complete range of tests in the completed IQ Test Certificate for the system,

only some are required for the "Recurring Tests" (e.g. those required during
maintenance) and those checks are summarized in this image quality test.

• For the 1st test, transcribe the actual values from startup from the IQ Test Certificate to

the Maintenance Protocol, in the column “Initial Values”.
If no upper and lower tolerances are listed, calculate them in accordance with the listed
tolerance and enter them in the columns "+" (upper tolerance) or "-" (lower tolerance).

• A new Maintenance Protocol should be used every time maintenance is carried out.

• The initial values from the 1st maintenance should be used as the reference values for

the 2nd, 3rd and for every other maintenance.

• To make quick comparisons possible, the appropriate chapter in the IQ Test Certificate

or in the IQ Reference Value List is listed in brackets at the back of very chapter in these
instructions.

• Mandatory measurement value entries are labeled with “ ”.

• The measured values must be within the tolerance limits.

• If there are deviations from listed tolerances, an adjustment is required in accordance

withthe corresponding VIDEOMED SX or FLUOROSPOT H / HK Adjustment
Instructions.

• If a new measurement value results following repairs or an adjustment, enter this value

as a new initial value in a new Maintenance Protocol.

• File the Maintenance Protocol in the System Manual, if not available in the

FLUOROSPOT H Manual RX41-020.064.01 or the FLUOROSPOT HK Manual RX41-

025.064.01, in Register 9.

• Order new protocols from Erlangen, TDU 44 by listing the Publication Number,

RX 41-020.105.04....

Siemens AG Register 8 RX41-020.101.04 Page 1 of 24 FLUOROSPOT H/HK
Medical Engineering Rev. 01 05.97 TD AX 5