MULTIX PRO

AX

Installation

Startup Instructions

© Sie mens AG 1999

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
Print No.: RXB1-140.034.14.02.02 Doc. Gen. Date: 07.01
Replaces: RXB1-140.034.14.01.02
0-2 Revision
Chapter Page Revision
all all 01
all all 02

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 per-
sonnel 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.

MULTIX PRO RXB1-140.034.14 Page 2 of 4 Siemens AG

Installation Rev. 02 07.01 TD SD 21 Medical Solutions
Contents 0-3

Page
1 _______Requirements/Notes ____________________________________________ 1- 1

Manufacturer’s Note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 1
Safety Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 1
Protection Against Laser Radiation . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 1
Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 1
Required Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 1
Required Measuring Instruments, Tools and Aids . . . . . . . . . . . . . . . . . . . 1- 2
Text Emphasis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 2
Important Remarks Regarding Startup . . . . . . . . . . . . . . . . . . . . . . . . . 1- 3
Abbreviations Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 3
Definition of Terms for Cassettes and X-radiation . . . . . . . . . . . . . . . . . . . . 1- 4
Special Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 4

2 _______Adapting the Line Power and Generator Startup _____________________ 2 - 1

Remark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1
Checking the Operating Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1
Generator Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 2

3 _______Installing the Service Software ___________________________________ 3 - 1

Connecting the Service PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1

Installing the Service Software and Programming the System . . . . . . . . . . . . . 3 - 1

4 _______Programming the System ________________________________________ 4 - 1

Checking the Realtime Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4- 4

Programming the Position of the Bucky Wall Stand . . . . . . . . . . . . . . . . . . .4- 5
Customer-specific Adjustments to the Column . . . . . . . . . . . . . . . . . . . . .4- 5
Adjusting the Vertical Pulse Brake in the Telescope . . . . . . . . . . . . . . . .4-5
Customer-specific Adjustments to the Table . . . . . . . . . . . . . . . . . . . . . .4- 6
Programming a Table Lift Stop Position . . . . . . . . . . . . . . . . . . . . . . .4- 6
Programming the Table Key Type . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
Programming the Brake Release Time . . . . . . . . . . . . . . . . . . . . . . .4- 6
Programming the Buzzer Status with a Floating Tabletop. . . . . . . . . . . . . .4-6
Customer-specific Adjustments of the Collimator . . . . . . . . . . . . . . . . . . . .4- 7
Light Localizer Switch-on Time . . . . . . . . . . . . . . . . . . . . . . . . . . .4- 7
Collimator Display (cm or inch) . . . . . . . . . . . . . . . . . . . . . . . . . . .4- 7
Checking the Lamp Voltage in the Collimator . . . . . . . . . . . . . . . . . . . . . .4-8

5 _______Checks and Adjustments ________________________________________ 5 - 1

Checking the Stand Movements. . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

Checking Table Movement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5- 1
Checking the Central Beam Drift in the Transverse Direction . . . . . . . . . . . . . .5- 2
Checking the Central Beam Drift in the Longitudinal Direction . . . . . . . . . . . . .5-3
Checking the Central Beam for Parallelism to the MULTIX Bucky . . . . . . . . . . .5- 3

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Medical Solutions Rev. 02 07.01 TD SD 21 Installation
0-4 Contents

Page
Adjusting the R2 Longitudinal Potentiometer . . . . . . . . . . . . . . . . . . . . . . 5-4
Adjusting the Vertical Reference SID of 115 cm . . . . . . . . . . . . . . . . . . . . 5-5
Adjusting the Vertical Pulse Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Checking the Vertical SID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Adjusting the Horizontal SID (115 cm) to the Bucky Wall Stand (Option) . . . . . . . 5-7
Checking the Horizontal SID to the Bucky Wall Stand (Option) . . . . . . . . . . . . 5-8
Checking the Light Field, Radiation Field and Format Collimation . . . . . . . . . . . 5-9
Coincidence of Radiation Field and Film Center (Bucky A) . . . . . . . . . . . . . . 5 - 11
Coincidence of Radiation Field and Film Center (Bucky B) . . . . . . . . . . . . . .5 - 12
Checking the Minimum Collimation . . . . . . . . . . . . . . . . . . . . . . . . .5 - 13
Checking the IONTOMAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 14
Checking the Diamentor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 14
Checking the Grid Blur . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 14
Measuring Ground Wire Resistance . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 16
Logoff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 17
Cover Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 17

6 ______ Changes to Previous Version _____________________________________ 6 - 1

MULTIX PRO Register 4 RXB1-140.034.14 Page 4 of 4 Siemens AG

Installation Rev. 02 07.01 TD SD 21 Medical Solutions
Requirements/Notes 1 1-1

Manufacturer’s Note 1

This document was originally written in German.

Safety Notes 1

CAUTION While carrying out all work steps and checks, the product-spe-
cific safety notes contained in the instructions, as well as the
general safety notes contained in Register 2 must be observed.

NOTICE The pink dust covers are also used as ESD protection!
They may be removed only if the cabinet / unit needs to be
opened.

Protection Against Laser Radiation 1

• This system contains a Class 2 laser.

• When working on the laser light localizer, do not look directly into the laser beam.
• See also ARTD Part 2 "Laser Radiation".

Tolerances 1

General tolerances for dimensions in accordance with ISO 2768

Limit dimen- over over over over over over over

sions for 3 mm 6 mm 30 mm 120 mm 400 mm 1000 mm 2000 mm
nom. dimens. to to to to to to to
range 6 mm 30 mm 120 mm 400 mm 1000 mm 2000 mm 4000 mm
Permissible ± 0.5
± 1 mm ± 1.5 mm ± 2.5 mm ± 4 mm ± 6 mm ± 8 mm
tolerance mm

These tolerances apply to all dimensions indicated in the present instructions, if no other
tolerance is stated expressly behind the value.
A tolerance of ± 10% is permissible for torque data.

Required Documentation 1

• MULTIX PRO/TOP Test Protocol

• MULTIX PRO/TOP Installation Protocol RXB1-140.039.01...
• Measurement Protocol for Direct Exposure Equipment RXD0-00.037.05...

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Medical Solutions Rev. 02 07.01 TD SD 21 Installation
1-2 Requirements/Notes

Required Measuring Instruments, Tools and Aids 1

NOTICE All tools, measuring instruments and aids mentioned, with the
exception of the "standard installation tools", are listed and spec-
ified in the Service Tools Catalogue.

• Standard installation tools

• Spring balance, 200 N 44 15 113 RH090
• Spring balance, 100 N 44 29 122 RH090
• ESD equipment, type 8501-3M 97 02 606 Y3121
• Digital multimeter
e.g.: Fluke 8060 A 97 02 101 Y4290
• KV measuring chamber 96 60 754 RE999
• Storage oscilloscope, Fluke 3390A 99 00 861 RE999
• Ground wire test instrument 44 15 899 RV090
• Service PC with Windows 95/98/ME
• Connection cable 99 00 440 RE999

Text Emphasis 1

WARNING All texts marked with "WARNING" call attention to potential risks
to health or life.

CAUTION All texts marked with "CAUTION" contain information on haz-

ards and measures to be taken to avoid such hazards.

NOTICE All texts marked with "NOTICE" contain additional information

pertinent to the following work step; the note is a statement
which is intended to provide a better understanding about the
work step or to warn of unnecessary and avoidable difficulties
that may be encountered during the work step.

All values marked with the symbol ” ” must be transcribed to the

MULTIX PRO/TOP Test Protocol supplied or to the Measuring Protocol for Direct Expo-
sure Equipment (the test protocol can be found in Register 9 of the subsystem binder).
These measurement values can be used for the Acceptance Test in accordance with the
Röntgenverordnung §16, mandatory in Germany, or other country-specific regulations.

MULTIX PRO RXB1-140.034.14 Page 2 of 4 Siemens AG

Installation Rev. 02 07.01 TD SD 21 Medical Solutions
Requirements/Notes 1-3

Important Remarks Regarding Startup 1

NOTICE If changes are made to the configuration or if adjustments are

made using the SSW, the SSW must be exited after completing
the changes using "Logoff"/ "Save" and the system must be
switched off and then on again to make the changes effective.

NOTICE Filling out the protocols:

- Do not use pencil.
- Do not make corrections using Tippex; they should be hand
written.
- Cross out the incorrect value, enter the new value and add
your initials and the date.
- Fields in which no entry needs to be made should be filled in
with n.a. (not applicable).
- After completing the startup, the technician must fill out the
protocols, and add signature and date.
- File all protocols in Register 9 of the subsystem binder.

CAUTION Checks or adjustments that must be carried out under radiation

are labelled with the radiation warning symbol .
While adjustments labelled with this symbol are being carried out,
radiation protective clothing must be worn.

Abbreviations Used 1

SID = Source Image Distance

DVM = Digital voltmeter
BWS = Bucky Wall Stand
SSW = Service Software

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1-4 Requirements/Notes

Definition of Terms for Cassettes and X-radiation 1

The terms ”length” and ”width” used in these instructions, as well as the orientation of
inserted cassettes, should be understood as illustrated in the sketch:

Length

Tabletop
24 cm x 30 cm cassette

*1

Width

30 cm x 24 cm cassette

Patient
*1 The first number always
indicates the width!

Special Symbols 1

- Symbol for working with radiation.

- Symbol for working with dangerous voltage.

- Symbol for torque values.

- Symbol for working with laser radiation.

MULTIX PRO RXB1-140.034.14 Page 4 of 4 Siemens AG

Installation Rev. 02 07.01 TD SD 21 Medical Solutions
Adapting the Line Power and Generator Startup 2 2-1

Fig. 1

Remark 2

From the Test Protocol, it can be seen at which line voltage the MULTIX PRO system was
tested. The standard connection is 2-phase, 400V, 50/60 Hz. If an adaptation needs to be
made to the local line power, proceed according to the points marked with an asterisk (*)
in the wiring diagrams. The Test Certificates are filed in Register 9 of the subsystem
binder.

CAUTION Before switching on the system, it is absolutely necessary to

check the internal power line connection.

Checking the Operating Voltage 2

• Switch the system on at the generator.

- The following LEDs must light up on the backplane for the table:
v10 - v23 (1/Fig. 1).

CAUTION After switching on the system, the voltage to the light localizer
lamp in the collimator must be checked immediately, for this see
the chapter "Programming the System", the point "Checking the
Lamp Voltage in the Collimator".

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Medical Solutions Rev. 02 07.01 TD SD 21 Installation
2-2 Adapting the Line Power and Generator Startup

Generator Startup 2

NOTICE The MULTIX PRO is supplied as a subsystem. In other words, the

tube assembly installed on the MULTIX was not tested at the fac-
tory with the generator that has been supplied !
The tube assembly must be started up along with the generator.

NOTICE With a KK connection of 2 exposure workstations to the POLY-

DOROS LX 30/50/80, SX 65/80 generator, the special cable (KK1b
G1/G2) for the 2nd exposure station must be adapted as follows.
Disconnect the cable connection in the KK1b G1/G2 Pin 16 con-
nector on the generator side and insulate it.

• Start up the generator in accordance with the startup instructions supplied.

POLYDOROS IT 30/55 COPL-136.815.02...

POLYDOROS SX 65/80, LX 30/50 Lite, LX 80 RX63-020.034.18...
System configuration with the Service PC for
POLYDOROS LX 30/50, POLYDOROS LX 30/50 LITE and RX63-020.034.21...
POLYDOROS SX 65/80, POLYDOROS LX 80

• Older generators (24 V KK connection) must be started up in accordance with the

documents located on site in the same sequence.
• After startup of the generator has been completed, continue with Chapter 3 of these
instructions.

MULTIX PRO RXB1-140.034.14 Page 2 of 2 Siemens AG

Installation Rev. 02 07.01 TD SD 21 Medical Solutions
Installing the Service Software 3 3-1

Fig. 1

Connecting the Service PC 3

• Switch the system off.

• Connect the Service PC (Com 1) to the processor board at (1/Fig. 1).
• Switch the system on again.

Installing the Service Software and Programming the System 3

The required diskettes are located in the System Manual, Reg. 9.

• Install the PC service software for the MULTIX PRO.

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Medical Solutions Rev. 02 07.01 TD SD 21 Installation
3-2 Installing the Service Software

Insert the “SW MULTIX”

disk in drive: A

In Windows: start the File Manager

Select Drive: A

Select the “INSTALL EXE” file

The window
“MULTIX Service Installation”
is displayed

Continue

Insert the "MULTIX documentation 1+"

disk in drive: A;
confirm with enter

Create

“The installation is complete and

the application has been properly set up”
is displayed

OK

MULTIX PRO RXB1-140.034.14 Page 2 of 2 Siemens AG

Installation Rev. 02 07.01 TD SD 21 Medical Solutions
Programming the System 4 4-1
• Select the MULTIX service software.

1
2

1a Language

• Select the language.

1b

1c

• Exit the MULTIX service software and reselect the MULTIX service software.
• Continue with Point 2.

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4-2 Programming the System

3 5

6 7
see Speed Info
91-97

10

11

MULTIX PRO RXB1-140.034.14 Page 2 of 10 Siemens AG

Installation Rev. 02 07.01 TD SD 21 Medical Solutions
Programming the System 4-3

Fig. 1

• Check the system configuration; Fig. 1 is an example.

- This screen appears beginning with SSW version VB01A.

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Medical Solutions Rev. 02 07.01 TD SD 21 Installation
4-4 Programming the System

Checking the Realtime Clock 4

• To do this, select the following routine in the SSW:

- System: Realtime Clock
- Check the correct clock setting and, if needed, adapt it to the local time.

MULTIX PRO RXB1-140.034.14 Page 4 of 10 Siemens AG

Installation Rev. 02 07.01 TD SD 21 Medical Solutions
Programming the System 4-5

Programming the Position of the Bucky Wall Stand 4

If a change to the position of the Bucky wall stand is made on-site, the following procedure
must be performed:
• Select the following routine in accordance with the SSW:
- Function groups: Bucky wall stand
- Adjustment of BWS position to table.

NOTICE Whenever the system is switched on, initialization is completed

only when the cassette tray of the particular workstation is
ejected completely and then completely inserted again.
Later triggering of exposure with inserted cassette is possible
only if this has been done.

NOTICE Change the following settings only at the customer’s request.

Customer-specific Adjustments to the Column 4

Adjusting the Vertical Pulse Brake in the Telescope 4

• Select the following routine in accordance with the SSW:

- Function groups: Column
- Adjustments: Adjustment of the pulse brake
- Activate or deactivate the brake as a pulse brake per the SSW.

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4-6 Programming the System

Customer-specific Adjustments to the Table 4

NOTICE Change the following programming only at the customer’s

request.

Programming a Table Lift Stop Position 4

By agreement with the customer, it is possible to individually adjust the table lift (adapta-
tion to the existing bed height, etc.). This position (working position) can be driven to auto-
matically from below or from above.
• To do this, select the following routine per the SSW:
- MULTIX SSW
- Adjustment
- Calibration
- Function groups: Host Table
- Adjustment of the customer-specific Lift Stop Position

NOTICE If the Table Lift Stop Position is changed, the reference SID set-
ting must be readjusted in the changed position since otherwise
there will be two table lift stop positions.

Programming the Table Key Type 4

The kick switch for the table longitudinal-transverse brake can be configured as a "Dead
man’s switch" or as a sensor.
• Select the following routine in accordance with the SSW:
- Function groups: Host Table
- Adjustment of the table key type

Programming the Brake Release Time 4

• Select the following routine in accordance with the SSW:

- Function groups: Host Table
- Adjustment of brake release time

Programming the Buzzer Status with a Floating Tabletop 4

- Only with the "Sensor" table key type

A buzzer sound when the tabletop brakes are released can be activated or deactivated.
• Select the following routine in accordance with the SSW:
- Function groups: Host Table
- Adjustment of the buzzer status with a floating tabletop

MULTIX PRO RXB1-140.034.14 Page 6 of 10 Siemens AG

Installation Rev. 02 07.01 TD SD 21 Medical Solutions
Programming the System 4-7

Customer-specific Adjustments of the Collimator 4

Light Localizer Switch-on Time 4

• In this regard, please see the adjustment instructions and tables in the "Manual
Collimator" connection diagram:
G 052G-1B-1.

Collimator Display (cm or inch) 4

• If the customer only uses cassette formats in “inch”, then the scale in “inch formats”
supplied must be affixed over the scale with “cm formats”.
- The original film must not be removed!

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4-8 Programming the System

1 2 3

Fig. 2

Checking the Lamp Voltage in the Collimator 4

• The collimators used in the MULTIX PRO / TOP system are shown in Fig. 2.
- 1. Collimator 04 68 215 G052G (ACSS)
- 2. Collimator 04 68 207 G052G (manual)
- 3. Collimator RM 70 06 625 GH001 (manual)
Checking the Lamp Voltage for Collimator Model G052G (1 and 2/Fig. 2)
• With introduction of the new power supply in the Multix table beginning with Serial
Number 3001, the light localizer lamp for the G052G collimator (1 and 2, Fig. 2) can be
controlled in controlled or uncontrolled mode.
Programming is possible using S1.4 in the G052G collimator!
- Controlled mode = voltage stabilizer (S1.4 = ON)
- Uncontrolled mode = direct power supply from the transformer (S1.4 = OFF)

NOTICE To increase the operating lifetime of the light localizer lamp, if

possible, it should be operated in the uncontrolled mode.
Prerequisites for the uncontrolled mode of the G052G collimator:
1. The four additional taps on the M8 T1 transformer for the
uncontrolled mode of the collimator must be present:
35, 36, 37, 38, see (1/Fig. 4)
Tap 16 = 34 Volt, may only be used for the controlled mode!!!
2. Set the S1.4 switch in the collimator to OFF
(voltage control off).
Measure the 23.5 V,+/- 0.5 lamp voltage directly at the lamp base.

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Installation Rev. 02 07.01 TD SD 21 Medical Solutions
Programming the System 4-9

Fig. 3 Fig. 4

• Check for correct connection of the collimator at T1.M8.X3 on the transformer (1/Fig. 4):
- MULTIX PRO M8X3.35 = 26 Volt (AC) factory setting
- Reserve M8X3.36 = 27 Volt (AC)
- MULTIX TOP M8X3.37 = 29 Volt (AC) factory setting
- Reserve M8X3.38 = 30 Volt (AC)
• Remove the cover over the light localizer lamp.
• Switch on the collimator light localizer and measure the voltage (23.5 Volt) directly at the
lamp base (1/Fig. 3).

NOTICE With line voltages of 400/440/480 Volt, as much as possible the

lamp voltage should be 23.5, +/- 0.5 Volt. The tap on M8.X3 should
be selected so that the required value is approached as closely as
possible.
The upper limit of 24 Volt may not be exceeded under any circum-
stances.

• If the specified tolerance is exceeded, switch to another appropriate tap.

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4 - 10 Programming the System

Fig. 5 Fig. 6

Checking the Lamp Voltage for Collimator Model GH001 (3/Fig. 2)

• Remove the rear cover panel (1/Fig. 5) on the RM collimator.

NOTICE The RM collimator is always operated in the uncontrolled mode; a

choice is not possible!

• Check for correct connection of the collimator to the transformer at T1.M8.X3 (1/Fig. 4):
- MULTIX PRO M8X3.35 = 26 Volt (AC) factory setting)
- Reserve M8X3.36 = 27 Volt (AC)
- MULTIX TOP M8X3.37 = 29 Volt (AC) factory setting
- Reserve M8X3.38 = 30 Volt (AC)
• Switch on the collimator light localizer and measure the voltage (23.5 Volt) directly at the
lamp base (1/Fig. 6).

NOTICE With line voltages of 400/440/480 Volt, as much as possible the

lamp voltage should be 23.5, +/- 0.5 Volt. The tap on M8.X3 should
be selected so that the required value is approached as closely as
possible.
The upper limit of 24 Volt may not be exceeded under any circum-
stances.

MULTIX PRO RXB1-140.034.14 Page 10 of 10 Siemens AG

Installation Rev. 02 07.01 TD SD 21 Medical Solutions
Checks and Adjustments 5 5-1

Fig. 1

Checking the Stand Movements 5

Release all the brakes described below at the control unit (1/Fig.1).
• Press the key; the longitudinal brake is released.
The motive forces must be: ≤ 40 N
• Press the key; the vertical brake is released.
The motive forces must be: ≤ 40 N
• Press the key; the rotation brake is released.
Rotation movement must be smooth and easy (no noise).

Checking Table Movement 5

• Carry out the table movement checks in accordance with the MULTIX PRO Operating
Instructions.
• The EMERGENCY STOP button blocks all motorized movements.
- To release this, turn the button 1/4 turn to the right.

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Medical Solutions Rev. 02 07.01 TD SD 21 Installation
5-2 Checks and Adjustments

Fig. 2 Fig. 3

Checking the Central Beam Drift in the Transverse Direction 5

• Position the tube assembly with a vertical beam path approx. 1 m above the floor.
• Switch on the light localizer and mark the position of the light field on the floor.
• Use the knobs (1/Fig. 2) to collimate a narrow light field in the longitudinal direction.
• Switch on the light localizer and move the tube unit to the max. SID; when doing this,
check the drift of the light field.
- Drift may be a max. of 5 mm.

Correction:
• Remove the tube assembly housing (1/Fig. 3) of the collimator (2 panelling screws).
• Loosen the 2 Allen screws (2/Fig. 3) approx. 2 turns.
• Loosen the two set screws (3/Fig. 3).
• Adjust the tube assembly on the longitudinal axis.
• Retighten the 2 Allen screws and set screws.
• Check the light field drift.
• Reinstall the tube assembly housing.

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Installation Rev. 02 07.01 TD SD 21 Medical Solutions
Checks and Adjustments 5-3

3 2

Fig. 4 Fig. 5

Checking the Central Beam Drift in the Longitudinal Direction 5

• Position the tube assembly with a vertical beam path approx. 1 m above the floor.
• Switch on the light localizer and mark the light field on the floor.
• Use the knobs (1/Fig. 4) to collimate a narrow light field in the transverse direction.
• Switch on the light localizer and move the tube assembly to the max. SID; when doing
this, check the drift of the light field. Drift may be a max. of 5 mm.
Correction:
• Remove the cover panel from the tube assembly support arm (1/Fig. 5).
• Loosen nut M6 (2/Fig. 5).
• Release the rotation brake at the keyboard and adjust the eccentric bearing (3/Fig. 5); .
• Retighten the nut (2/Fig. 5).
• Reinstall the cover panel.

Checking the Central Beam for Parallelism to the MULTIX Bucky 5

• Mark the center of the tabletop in the longitudinal direction (e.g. using a piece of string
stretched across the table).
• Switch on the light localizer.
• Adjust the line localizer centering cross to the mark.
• Move the column over its complete range of movement and determine if there is any drift
in the longitudinal direction (tolerance: less than/equal to 5 mm).

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5-4 Checks and Adjustments

R2 potentiometer

Fig. 6

Adjusting the R2 Longitudinal Potentiometer 5

NOTICE Handle the 10-turn potentiometer carefully and do not over-turn it.
The MULTIX PRO is supplied with a loose toothed belt. When
moving the column, make sure that the toothed belt does not
become damaged.

• Move the column all the way to the left.

• The R2 potentiometer is located at the base of the column. Remove the 2 Allen screws
(1/Fig. 6) and hook on the toothed belt (2) as shown in Fig. 6. Then reinsert the Allen
screws and tighten them.
• Select the following procedure in accordance with the service software:
- Function groups: Column
- Adjustment: Adjustment of the potentiometer column longitudinally
- Loosen the set screw (3) on the potentiometer coupling.
- Use potentiometer R2 to set 0 ± 2 on the Service PC display.
- Retighten the set screw.
- Confirm the adjustment at the Service PC with "OK".

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Checks and Adjustments 5-5

15
m

Fig. 7

NOTICE Document the following adjustments in the MULTIX PRO Test

Protocol (Point 5.2).

Adjusting the Vertical Reference SID of 115 cm 5

• Use the tape measure in the collimator to set an SID of 109.6 cm to the top surface of the
MULTIX PRO tabletop (the distance from the film to the top surface of the tabletop is 5.4
cm).
• Select the following procedure in accordance with the service software:
- Function groups: Column
- Adjustment: Adjustment of the reference SID.
- Carry out the adjustment in accordance with the service software.
• Affix the SID adhesive label (1.15 m) and the line marker from the accessory pack as
shown in Fig. 7.
• Insert the cassette tray completely -> the SID set will be displayed.

Edge for
measuring tape

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5-6 Checks and Adjustments

Adjusting the Vertical Pulse Brake 5

The brake in the stand can be configured as a pulse brake for the 115 cm or 102 cm SID.
• Carry out the adjustment in accordance with the customer specific adjustments for the
column.

Checking the Vertical SID 5

• Adjust the tube assembly to the 115 cm SID marker as shown in Fig. 7.
• Use the tape measure in the collimator to measure to the top surface of the table top and
add 5.4 cm (distance: top surface of tabletop - film).
• Enter the displayed and the measured values in the Test Protocol under Point 5.2, Bucky
A, (MULTIX table).
- Determine the difference and enter this value in the Test Protocol.
- The difference may not exceed 17 mm.
• In the Test Protocol, Point 5.2, check off the field "Checked during startup" .

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Checks and Adjustments 5-7

1.15
1 15
m

Fig. 8 Fig. 9

Adjusting the Horizontal SID (115 cm) to the Bucky Wall Stand
(Option) 5

• Position the tube assembly at the Bucky Wall Stand as shown in Fig. 8.
• Use the tape measure in the collimator to set an SID of 110.9 cm to the table top of the
Bucky wall stand (the distance of the film to the table top surface is 4.1 cm).
• Select the following procedure in accordance with the service software:
- Function groups: Bucky wall stand
- Adjustment: Adjustment of the SID value to the Bucky wall stand
- Enter 115 at the Service PC for the horizontal SID and confirm the adjustment with OK.
• Affix the SID adhesive label (e.g. 1.15m) and the line marker from the accessory pack as
shown in Fig. 9.

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5-8 Checks and Adjustments

Checking the Horizontal SID to the Bucky Wall Stand (Option) 5

NOTICE Document the following adjustments in the MULTIX PRO Test

Protocol (Point 5.3).

• Swivel the tube unit 90° toward the Bucky wall stand.
• Adjust the column to the SID mark as required.
• Use the tape measure in the collimator to measure to the front panel of the Bucky wall
stand and add 4.1 cm (distance: front panel - film plane)
• Enter the displayed value in the Test Protocol under Point 5.3, Bucky B (Bucky wall
stand) under FFA1/SID1.
• Determine the difference and enter the value.
- The SID difference may not exceed the values in the following table:

Max. Difference
SID
(corresponds to 1.5% of SID)
100 cm 15 mm
115 cm 17 mm
150 cm 22 mm
200 cm 30 mm
300 cm 45 mm
36’’ 14 mm
40’’ 15 mm
48’’ 18 mm
72’’ 27 mm

• If the difference is greater, repeat the adjustment.

• In the Test Protocol, Point 5.3, check the field "Checked during startup".

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Checks and Adjustments 5-9

Length
Light field

Marker

Side marker

Fig. 10

Checking the Light Field, Radiation Field and Format Collimation5

NOTICE The beam geometry has already been completely adjusted at the
factory and documented in the MULTIX PRO Test Protocol using
the test exposures supplied. Use the test exposures to ensure
that none of the settings has changed. Document the following
adjustments in the MULTIX PRO Test Protocol.

• Position the central beam so that it is vertical.

• Place a 24 cm x 30 cm (10” x 12”) cassette on the MULTIX PRO tabletop.
• Set a vertical SID of 115 cm.
- Use the tape measure in the collimator to measure the distance to the top surface of
the cassette.
• Enter this value in the Test Protocol under Paragraph 2.1 "Coincidence of Light Field and
Radiation Field".
• Use the knobs on the collimator to exactly set a display of 18 cm x 24 cm or
8’’ x 10’’ (the exposure is also used to check the manual format collimation).
• Switch on the light localizer.
• Place a radiolucent marker (e.g. washer, coin) on the cassette as shown in Fig. 10.
• Affix a washer as a side marker.
• Trigger an exposure: ( ; 50 kV; 5 mAs) and develop the film.
• Make a note of the following data on the developed film with a waterproof felt-tip pen:
- The SID set
- Focus size
- Film size
- Radiation field size

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5 - 10 Checks and Adjustments

Y1
Film

Light field

X2 X1

Radiation field

Y2

Fig. 11

Evaluation: Light Field to Radiation Field

• On all four sides, measure the difference (X1, X2, Y1, Y2) between the edges of the light
field and the edges of the radiation field as shown in Fig. 11 and enter the values in the
Test Protocol under Point 2.1 "Coincidence of Light Field and Radiation Field".
• Calculate the total difference in the X and Y directions (without regard to sign).
- The difference in width ∆ Y and the difference in length ∆ X may not exceed 1.4 cm at
an SID of 115 cm.
• In the Test Protocol, Point 2.1 check off the field "Checked during startup".

Evaluation: Manual Format Collimation

• Enter the width and length (18 cm x 24 cm or 8’’ x 10’’) displayed on the collimator (115
cm SID) in the Test Protocol under 3.1 ”Accuracy of the Manual Format Collimation”.
• Measure the width and length of the radiation field and enter the values in the Test
Protocol.
• Calculate the difference in the size of the radiation field to the format set in the length and
width and document these values.
∆
- The difference in width Y and the difference in length ∆ X may not exceed 1.4 cm in
either direction.
• In the Test Certificate, Point 3.1 check off the field "Checked during startup".

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Checks and Adjustments 5 - 11

Film format

Radiation field

∆
Metal washer
Center point of cassette

Side marker

Fig. 12

Coincidence of Radiation Field and Film Center (Bucky A) 5

Procedure:
• Position the central beam so that it is vertical, center the tube assembly to the cassette
tray marker and set the SID to 115 cm.
• Place a center marker on a 24 cm x 30 cm (10’’x12’’) cassette (tape on a metal washer)
and a second marker as a side marker (Fig. 12).
• Load the marked cassette with film and insert it in the cassette tray up to the stop.
• Use the knobs on the collimator to set a format of 18 cm x 24 cm (8’’ x 10’’) (SID = 115
cm).
• Trigger an exposure ( ; 50 kV; 5 mAs) and develop the film.
Evaluation:
• Evaluate the center deviation ∆ as in Fig. 12 and document this value in the Test
Protocol, Point 4.2 "Checked during startup" (Coincidence of Center of Radiation Field
and Film Center, Bucky A).
- The deviation may not exceed 12 mm at an SID of 115 cm.
• In the Test Protocol, Point 4.2 check off the field "Checked during startup".

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5 - 12 Checks and Adjustments

Film format

Radiation field

∆
Metal washer
Center point of cassette

Side marker

Fig. 13

Coincidence of Radiation Field and Film Center (Bucky B) 5

Bucky Wall Stand (Option)

Procedure:
• Position the tube assembly in the horizontal radiation projection direction towards the
Bucky Wall Stand, center it to the cassette panel mark and set the SID.
• Enter the SID in the Test Protocol under Point 4.3.
• Place a center marker on a 24 cm x 30 cm (10’’x12’’) cassette (tape on a metal washer)
and a second marker as a side marker (Fig. 13).
• Load the marked cassette with film and insert it in the cassette tray up to the stop.
• Use the knobs on the collimator to set a format of 18 cm x 24 cm (8’’ x 10’’).
• Trigger an exposure ( ; 50 kV; 5 mAs) and develop the film.
Evaluation:
• Evaluate the difference from the center ∆ as in Fig. 13 and enter this in the Test
Protocol, Point 4.3 "Checked during startup" (Coincidence of Radiation Field Center with
Film Center, Bucky B).
- The deviation may not exceed 12 mm at an SID of 115 cm .
• In the Test Protocol, Point 4.3 check off the field "Checked during startup".

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Installation Rev. 02 07.01 TD SD 21 Medical Solutions
Checks and Adjustments 5 - 13
Checking the Minimum Collimation 5

• Close the collimator completely.

• Set a distance of 102 cm or 40” between the focus and the table top.
• Switch on the light localizer at the collimator.
The minimum collimation must not exceed 4.5 cm x 4.5 cm.

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5 - 14 Checks and Adjustments

Checking the IONTOMAT 5

• Carry out the check of the IONTOMAT in accordance with the startup instructions
supplied for the respective generator
POLYDOROS IT 30/55 COPL-136.815.02...
POLYDOROS SX 65/80, LX 30/50 Lite, LX 80 RX63-020.034.18...
System configuration with the Service PC for
POLYDOROS LX 30/50, POLYDOROS LX 30/50 LITE and RX63-020.034.21...
POLYDOROS SX 65/80, POLYDOROS LX 80

in accordance with the Chapter "Startup and Function Check" and document this in the
Test Protocol for Direct Exposure Equipment, RXD0-000.037.05...
• After completing the check of the IONTOMAT, continue with the next section of these
instructions.

NOTICE Make sure that when selecting the chambers, the same chambers
are selected for the MULTIX and Bucky wall stand (see also the
installation instructions, "Coverting the IONTOMAT Chambers".

Checking the Diamentor 5

With the built-in Diamentor, carry out the check in accordance with the startup instructions
supplied.
With an external Diamentor, carry out the check in accordance with the manufacturer’s
instructions.
After completing the check of the DIAMENTOR, continue with the next section of these
instructions.

Checking the Grid Blur 5

For each application device with a moveable grid, check at which exposure time tg grid
lines can no longer be seen on the film.

NOTICE Factory setting:

The delay time (default) is 34 ms for the POLYDOROS SX/LX/Lite
If the system is shipped with POLYDOROS IT, change this value
(as an initial base) to 0 ms.

• Change the delay time with the SPC by selecting:

- Function groups: Host Table
- Adjustment: Bucky operating delay time (Grid contact signal)

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Checks and Adjustments 5 - 15
Procedure:
• At the generator, select small focus, 80%, 40 kV and middle IONTOMAT chamber.
• Set an SID of 115 cm.
• Insert a 18 cm x 24 cm cassette without film.
• Trigger exposures beginning at 40 kV until exposure times of approx. 3 ms result
(increase the kV value -> exposure time becomes shorter).
• Insert a 18 cm x 24 cm cassette with film.
• Trigger the exposure with the previously determined kV value.
• Use a magnifier at the light box to determine at which switch time grid lines can no longer
be seen on the film.
- Grid lines for exposure times of > 3 ms are not allowed.

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5 - 16 Checks and Adjustments

Measuring Ground Wire Resistance 5

(must be carried out as the last step)

Ground wire test Instrument

Unit
Monitor
Cabinets
Transformers
Consoles
Tube assembly
Collimator
etc.

< 0.2 Ohm

Generator

Fig. 14

Test instrument: Ground wire test instrument

Measurement max. 0.2 Ohm (observe country-specific regulations),
value: (current 10 A, voltage drop max. 2 V)
Test Measure between all conductive parts of the system that can be
procedure: touched and the ground wire bus bar in the generator.
Exception: accessory rails and tabletop.
Conditions: Ground wire resistance max. 0.2 Ohm.
• If the value is higher, increase ground wire cross section.
• Lower transfer resistance (e.g. tighten screws).

CAUTION After completing all adjustments and control measurements, the

responsible technician must confirm with signature and date that
all values have been correctly determined and documented in the
Test Protocols (Unit, Generator, and IQ Test Protocol for Direct
Exposure Equipment).

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Checks and Adjustments 5 - 17

Logoff 5

• Exit the SSW using System; Logoff; Save

• Switch the system off / on
• Start the SSW and make a backup on the supplied backup transfer diskette.
• Select the following routine in accordance with the SSW:
- Data backup
- Insert the “Multix technical documentation 2- Diskette” into drive a:
- Assign a <Name>.dat, e.g. Srn_01234.dat
- OK

Cover Panels 5

Install the cover panels in accordance with Chapter 7 of the installation instructions.

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5 - 18 Checks and Adjustments
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Installation Rev. 02 07.01 TD SD 21 Medical Solutions
Changes to Previous Version 6 6-1
Cover page:
Changed.
Chapter 2; Page 1:
Notice changed.
Chapter 2; Page 2:
Table expanded.
Chapter 4; Page 3, 4, 8-10 :
Text added.
Check of the Realtime Clock added.
Check of the lamp voltage added.
Chapter 5:
POLYDOROS IT 30/55 added.
Two Notices added.

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Medical Solutions Rev. 02 07.01 TD SD 21 Installation
6-2 Changes to Previous Version

TD PS 21/Conrad, Tropia

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