Philips Practix User manual

Mobile radiography

INSTRUCTIONS FOR USE

PRA CTIX 100 plus

Mobile Medical X-ray System

English

Contents

Safety

Electrical safety 4
Mechanical safety 4
Radiation protection 5
Disposal 5
Conformity 5
Copyright 5
Electromagnetic compatibility 6

Legend

General view 7
Possible movements 7
Control desk 8
Collimator 8
Messages on the display 9

Operation

Transport 10
Positioning the unit 11
Switching on the unit 12
In the event of an error message 12
Preparing the tube assembly 13
Overview of operation 14
Program overview 15
Programmed exposure 16
Manual exposure 17
Radiography 18
Terminating operation 19
Parking the unit (in the parking position) 19
Remote control 20

Programming

Saving APR parameters 21

Maintenance

Tests by the user 22
Safety checks according to the
Medical Device Directive 22
Repairs 23
Recording results 23
Main fuse 23
Cleaning 24
Disinfection 24

Technical data 25

Appendix

Exposure table 29

Safety

This manual is designed to make it possible for you to
work with the X-ray equipment described safely. You
may operate the X-ray equipment only in compliance
with the safety instructions in this manual and not use it
for purposes other than for which it is intended. The
X-ray equipment may only be operated by persons who
have the necessary expertise in radiation protection or
knowledge of radiation protection and who have been
instructed in how to operate the X-ray equipment.

In the United States, Federal law restricts this
device to sale, distribution, and use by or on the
order of a physician.

It is always the user who is responsible for compliance
with the regulations applying to installation and opera­tion of X-ray equipment.

• You must never use the X-ray equipment if it
has any electrical, mechanical or radiological
defects. This particularly applies to faulty
indicators, displays, warnings and alarms.

• If the user wishes to connect the X-ray
equipment to other equipment, components
or assemblies and if it is not apparent from
the technical data whether it can be safely
combined with such equipment, compo­nents or assemblies, the user must ensure
that the safety of the patient, operating staff
and the environment is not affected by the
planned combination by consulting the
manufacturers involved or by making enquir­ies from an expert.

• Philips is responsible for the safety features
of its products only if maintenance, repairs
and modifications have been performed by
Philips or by persons explicitly authorised to
do so by Philips.

• As with any technical appliance, this equip­ment requires not only correct operation but
also regular, competent maintenance and
care, which are described in the section
“Maintenance“.

• If you operate the X-ray equipment incorrect­ly or if the user fails to have maintenance
carried out properly, Philips cannot be held
liable for any malfunctions, damage or
injuries.

• Safety circuits must be neither removed nor
modified.

• You may remove or open parts of the
housing only if you are instructed to do so in
this manual.

Electrical safety

This X-ray equipment meets the safety class I and
type B according to IEC 60601-1.

Only trained maintenance staff may remove the covers
from the high-voltage cable of the X-ray tube assembly
and the high-voltage generator.

This X-ray equipment may only be operated in medical
rooms which meet IEC requirements.

• You must never operate this X-ray equip­ment in areas where there is a risk of
explosion.

• Detergents and disinfectants, including
those used on patients, may create explo­sive mixtures of gases. Please observe the
relevant regulations.

Mechanical safety

• Never hold the tube carrier arm to position
the tube assembly. There is a risk you may
trap your fingers! Use the grip on the tube
assembly.

• Only transport the X-ray unit when the tube
assembly arm has been locked in the transit
position.

4

Radiation protection

Ensure that before each X-ray exposure all the
necessary radiation protection measures have
been taken.

When using X-radiation the personnel in the examina­tion room must comply with the valid radiation protec­tion regulations. In this respect please observe the
following rules:

• To protect the patient against radiation always use
radiation protection accessories in addition to devices
which are fitted to the X-ray equipment (e.g. dia­phragm, spacer, filter).

•Wear protective clothing. Radiation protection aprons
with a lead equivalent of 0.35 mm attenuate X-radiati­on at 50 kV by 99.84%, and at 100 kV by 91.2%.

• Distance is the most effective radiation protection.
Keep as large a distance as possible away from the
object exposed and the X-ray tube assembly. Use the
full length of the release switch cable.

• Avoid working in the direct beam of radiation.

• Always use the smallest X-ray field collimation.
Scattered radiation is largely dependent on the
volume of the object being exposed.

• Always select a focal spot to skin distance as long as
possible to keep the absorbed dose for the patient as
low as could reasonably be possible.

• Always be aware that any material brought into the
path of radiation between the patient and the image
receptor (e.g. film) will have a negative influence on
the image quality as well as on the patient dose.

Philips
– supports you in disposing of the X-ray equipment

described in a proper manner

– returns reusable parts to the production cycle via

certified disposal companies and

– thus helps to reduce environmental pollution.

Consequently, do contact your Philips Service Organisa­tion in full confidence.

Conformity

0123

This Medical Device meets the provisions of the
Medical Device Directive MDD 93/42 EEC (93).

If you have further questions regarding the applicable
national or international standards, please address them
to:

Philips Medical Systems DMC GmbH
Quality Assurance Department
Roentgenstrasse 24
D-22335 Hamburg
Fax: [phone]

Copyright

© 2004 by Philips Medical Systems DMC GmbH,
Roentgenstrasse 24, D-22335 Hamburg, Germany

This manual is a translation from the German.

Safety circuits which may prevent X-radiation from
being switched on under certain conditions may be
neither removed nor modified.

Disposal

Philips manufactures state-of-the-art X-ray equipment in
terms of safety and environmental protection. Assum­ing no parts of the system housing are opened and
assuming the system is used properly there are no risks
to persons or the environment.

To comply with regulations it is necessary to use
materials which may be harmful to the environment and
therefore have to be disposed of in a proper manner.

For this reason you must not dispose of the X-ray
equipment together with industrial or domestic
waste.

When receiving data media the user acquires a non­exclusive, non-transferable right to use the software
stored on them in connection with the hardware com­ponents delivered with it by Philips.

Changes to software, the use of which on hardware
components other than those delivered by Philips in
this connection (multiple use) or the making of copies,
even for purposes of data backup, must be approved by
Philips in writing beforehand.

5

Safety

Electromagnetic compatibility (EMC)

In accordance with its intended use, this electronic
apparatus complies with the law governing EMC, which
defines the permitted emission levels from electronic
equipment and its required immunity against electro­magnetic fields.

Nevertheless, it is not possible to exclude with absolute
certainty the possibility that radio signals from
high-frequency transmitters, e.g. mobile phones or
similar mobile radio equipment, which themselves
conform to the EMC regulations, may influence the
proper functioning of electromedical apparatus if such
equipment is operated in close proximity and with
relatively high transmitting power. Therefore, operation
of such radio equipment in the immediate vicinity of
electronically controlled medical apparatus should be
avoided to eliminate any risk of interference.

Explanation:
Electronic apparatus that satisfies the EMC require­ments is designed so that under normal conditions
there is no risk of malfunction caused by electromag­netic interference. However, in the case of radio signals
from high-frequency transmitters with a relatively high
transmitting power, the risk of electromagnetic incom­patibility when operated in close proximity to electronic
apparatus cannot be totally ruled out.

In unusual circumstances unintended functions of the
apparatus could be initiated, possibly giving rise to
undesirable risks for the patient or user.

For this reason, all kinds of transmission with mobile
radio equipment should be avoided. This also applies
when the apparatus is in „standby“ mode.

Mobile telephones must be switched off in designated
problem zones.

6

Legend

General view

1 Tube assembly
2 Angle scales for position of tube

assembly

3 Grip for positioning tube

assembly

4 Collimator with light field

indicator

5 Fixing grip for tube assembly

swivel

6 Tube carrier arm
7 Transportation securing device
8 Handswitch for radiography

9 Equipotential bonding
10 Mains cable with holder
11 Travel joystick

– left: parking position
– centre: travel straight ahead
– right: parallel travel

12 Travel handle
13 Automatic cutout
14 Generator
15 Cassette compartment
16 Remote control (option)
17 Receiver indicator (LED)
18 X-ray on indicator (LED)
19 Release exposure
20 Switch on light beam lamp

12

15

11

14

13

6

7

8

9

10

5

16

17

1

2

4 3

18

19
20

2

Possible movements

7

Legend

Control desk

1 Display panel

2Switch OFF unit

3Switch ON unit

4 Ready display

“Unit ready for radiation”

5 display

“Radiation ON”

6 Delete messages (or: return to

APR menus)

7 Select APR menu line

8 Change mAs

9 Change kV

10 Activate APR mode

(or: turn menu page)

PRACTIX

23

11

10

100 plus

Ready

4

56

1

kV

– + +

mAs

–

89

PHILIPS

Reset

1

2

3

4

7

11 Switch ON light field lamp

Collimator

1Switch ON light field lamp

2 Open/close diaphragm at right

angles to tube assembly

3 Open/close diaphragm

longitudinally in relation to tube
assembly

4 Slot for accessories

5 Rails for accessories

6Tape measure for measuring SID

(Source Image Distance)

1

2

3

4

5

6

8

Messages on the display

Message

MANUAL

READY

BUSY

CLOCK OFF

POWER FAULT

V3 FAULT

RESET APR

APR OUT OF RANGE

TUBE SEASONING

FILAMENT

HOT TUBE

V2 FAULT

STARTER INTERLOCK

CHOPPER FAULT

TIME OUT

LACK OF X-RAY

MAX TIME

DATA ERR.

MAN STOP RX

INVERTER KV ERR.

INVERTER OVERLOAD

INVERTER FAULT

ERR. TUBE CALIBR.

Meaning

Manual exposure/main menu.

The unit is ready for exposure.

A waiting time starts in order to prevent the
X-ray tube assembly from overheating.

Fault in the electronic circuitry (clock
generator).

Fault in the electronic circuitry (power
supply).

Fault in the electronic circuitry (low voltage
V3).

APR program data check.

An APR value is out of range.

After a lengthy operating interval
(≥ 3 months) the X-ray tube has to be set in
order to prevent damage.

Fault in the electronic circuitry (heating
circuit).

The temperature of the X-ray tube has
reached its maximum.

Fault in the electr. circuitry (low voltage V2).

Fault in the electr. circuitry (anode starting).

Fault in the electronic circuitry (chopper).

The handswitch has been pressed for longer
than 15 s at position 1 (preparation for
exposure).

Fault in the electr. circuitry (tube voltage).

Maximum exposure time (2 s) has been
reached.

Fault in the electronic circuitry (data stor­age).

The handswitch has been released before
the end of an exposure.

Fault in the electronic circuitry (converter).

Fault in the electronic circuitry (converter).

Fault in the electronic circuitry (converter).

Fault in the electronic circuitry (tube set­ting).

Action

–

–

Wait for “READY” message.

Press reset button and continue.

Switch OFF, wait a while and try again,
otherwise call Customer Service.

Switch OFF, wait a while and try again,
otherwise call Customer Service.

Press reset button and continue.

Press “reset“ and set APR value correctly.

Press reset button and continue, then call
Customer Service to set X-ray tube.

Switch OFF, wait a while, try again; other­wise call Customer Service.

Press reset button and wait until the X-ray
tube has cooled down.

Switch OFF, wait a while, try again; other­wise call Customer Service.

Press reset button and try again.

Press reset button and try again.

Let go of handswitch, press reset button
and repeat exposure.

Press reset button and try again.

Press reset button and try again.

Switch OFF, wait a while, try again; other­wise call Customer Service.

Press reset button, repeat exposure and
only let go of handswitch after hearing the
signal three times.

Press reset button and try again.

Press reset button and try again.

Press reset button and try again.

Switch OFF, wait a while, try again; other­wise call Customer Service.

Remark

–

–

–

–

R

R

–

–

R

R

R

R

R

R

–

R

R

R

–

R

R

R

R

HAND SWITCH ERR.

Dose measuring unit

(option):

INACTIVE

ACTIVE

NOT OK

MAXDOSE

R = error message saved on storage unit for Service Organisation

Fault in the handswitch.

Dosemeter not fitted.

Dosemeter ready.

Dosemeter fitted but faulty.

Dose measurement has reached maximum.

Press “reset“, check cable and connection,
try again; otherwise call Customer Service.

–

–

Press reset button and try again.

Press APR menu 1-button to reset value.

R

R

–

R

–

9

Operation

Transport

Please observe the following:

• Before transport
– The unit must be switched off
– The plug must be removed
– The cable must be wound up

(see page 19).

• For transport
–Move tube assembly into the

transport position

– Lock the transport securing

device.

To ensure that the transport secur­ing device, with the tube carrier arm
in its lowest position, can lock into
place:

• Set the knob with the arrow
pointing to the red dot (see
Fig. 1).

1. Swing tube carrier arm down until
the transport securing device
locks in place.

2. Set the tube assembly vertical
and tighten the fixing grip.

10

3. To move straight ahead set the
travel joystick straight.

To manoeuvre over thresholds you
can tilt the unit slightly by pressing
on the bar under the generator with
your foot.

Positioning the unit

To prevent the transport securing
device from locking in place uninten­tionally:

• Set button with the arrow point­ing to the green dots (see Fig. 1).

1. Pull out transport securing device
button and swing tube carrier arm
up.

3. To move in parallel set the travel
joystick to the right. The wheels
turn to the parallel travel position.
A 45° position is also possible.

2. Move the unit to the patient,
preferably at right angles.

4. Position the tube assembly above
the region of interest.

11

Operation

Switching on the unit

• If the yellow LED is not lit, check
whether the main fuse for the
unit has been switched off (see
page 22).

After switching ON, the unit per­forms a self-test; then the current
software version is displayed for
approx. 3 s (example: VER. 1.00.00).

•When all the segments for the
condensator charge have been
displayed on the fourth line, the
unit is ready for operation.
During charging (approx. 1 min)
and during short recharging
intervals a high frequency tone is
audible.

1. Insert the plug into the
socket.

PRACTIX

100 plus

Ready

[][][][][][][][][][][][][][][][][][][]
[][][][][][][][][][][][][][][][][][][]
[][][][][][][][][][][][][][][][][][][]
[][][][][][][][][][][][][][][][][][][]

kV

– + +

PRACTIX

100 plus

Ready

kV

– + +

mAs

–

PHILIPS

Reset

1

2

3

4

2. The yellow LED next to the button is lit.
Press the button to switch ON the unit.

PHILIPS

Reset

1

2

3

PRACTIX

4

100 plus

Practix 100 plus

>>>>>>>>>>>>>>>>>

kV

– + +

Ready

Ver. 1.00.00

PHILIPS

Reset

1

2

3

mAs

4

–

mAs

–

In the event of an error message

If an error message appears (see
page 9):

• press

If the message remains:

• Switch off system

• Switch on system

If the message still remains:

• Call Customer Service

12

PRACTIX

PRACTIX

100 plus



MANUAL
70 2 mAs 4.0

kV

– + +

100 plus

ERR. TUBE CALIBR.

kV

– + +

Ready

MAN STOP RX

–

Ready

CALL SERVICE

–

mAs

mAs

PHILIPS

Reset

1

2

3

4

PHILIPS

Reset

1

2

3

4

Note: The exposure
parameters illustrated
are only examples.

Preparing the tube assembly

• Position cassette.

• Position the unit and tube assem­bly accurately.

•Measure source-image distance
(SID).

• Collimate the light beam to the
cassette size.

The light field lamp goes out
automatically after approx. 30 s.

Example

1. Switch ON the light field lamp
(also possible with on the
control panel).

”18“

”24“

100 cm

24 cm

2. Collimate the light beam to the
cassette size.

3. On the angle scales you can
check the position of the tube
assembly.

18 cm

4. The collimator can also be swiv­elled.

13

Operation

Overview of operation

Switch ON

Self-test / Version display

MANUAL EXPOSURE

Main menu

PROGRAMMED EXPOSURE

4 APR groups for selection

APR group

8 APR progr. per group for selection

APR program

Default kV and mAs

Change APR parameters

Then display of “*” on line 3

Save new APR parameters

Authorised personnel only!

Release exposure

If “READY” display on line 1

Set parameters

Free kV and mAs

Release exposure

If “READY” display on line 1

14

Program overview

Four APR groups, each with eight APR programs, are available for selection.
You will find the factory-set kV and mAs values in the exposure table annexed.

APR group

APR program

1. SKULL / TRUNK

Thorax AP
Skull
Cervical spine
Dorsal spine AP

Lumbar spine AP
Abdomen AP
Pelvis AP
Hip AP

2. UPPER EXTREMITIES

Shoulder AP
Clavicle
Humerus/elbow
Elbow

Lower arm
Wrist
Hand AP
Finger

3. LOWER EXTREMITIES

Hip/femur
Femur
Knee
Lower leg

TCJ
Calcaneum
Foot
Toes

4. PEDIATRICS

Thorax 0.5 kg
Thorax 1.0 kg
Thorax 2.0 kg
Thorax 4.0 kg

Thorax 6.0 kg
Thorax 8.0 kg
Thorax 10 kg
Thorax 15 kg

15

Operation

Programmed exposure
(APR mode)

A few seconds after switching ON
(see page 12) the main menu
appears.

1. Press to access the overview
of the four APR groups.

2. With select one of
the four groups displayed.
Each group contains eight APR
programs.

3. The list of eight APR programs
takes up two pages.
You will see this from the symbol
indicating the next ( ) or previous
( ) page.

With you go from the first
page to the second page (and
back again).

4. With select the
object/organ.

PRACTIX

PRACTIX

PRACTIX

100 plus

READY
MANUAL
70 4.0

kV

– + +

100 plus

SKULL/TRUNK
UPPER EXTREMITIES
LOWER EXTREMITIES
PAEDIATRICS

kV

– + +

100 plus

Thorax ap
Skull
Cervical spine
Dorsal spine ap

kV

– + +

Ready

Ready

Ready

PHILIPS

Reset

1

2

3

mAs

4

–

mAs

PHILIPS

Reset

1

2

3

4

•

Press to return to
the previous menu.

–

PHILIPS

Reset

1

2

3

PRACTIX

4

100 plus

mAs

–

•

Press to return to
the previous menu.

Ready

Lumbar spine ap
Trunk ap
Pelvis ap
Hip ap

kV

– + +

mAs

–

PHILIPS

Reset

1

2

3

4

5. The object/organ selected and the
default exposure parameters (kV
and mAs) are displayed.

6. If necessary, you can change the
exposure parameters by pressing

for kV and mAs.

An asterisk (“*“) indicates that
the exposure parameters have
changed; however, they are not
permanently stored.
If you restore the original kV and
mAs values, the asterisk remains.

16

PRACTIX

PRACTIX

100 plus

READY
SKULL/TRUNK
Pelvis ap
70 4.0

kV

– + +

100 plus

READY
SKULL/TRUNK
Pelvis ap
69 4.0

kV

– + +

Ready

Ready

PHILIPS

•

Press to return to
the APR groups.

•

Press to return to the
APR programs.

mAs

Reset

1

2

3

4

–

PHILIPS

Reset

1

2

3

mAs

4

–

•

You can also store the
changed exposure
parameters as presets
for the APR program
(see page 20).

Manual exposure

A few seconds after switching ON
(see page 12) the main menu
appears.
After a Programmed Exposure (see
page 16) you also access the main

menu by pressing more than
once.

• The exposure parameters last
valid (kV and mAs) are displayed.

PRACTIX

100 plus

READY
MANUAL
70 4.0

kV

– + +

Ready

PHILIPS

Reset

mAs

1

2

3

4

Note: The exposure
parameters illustrated
are only examples.

–

•With you can change the
exposure parameters.

PRACTIX

100 plus

READY
MANUAL
69 4.0

kV

– + +

Ready

PHILIPS

Reset

1

2

3

mAs

4

–

17

Operation

Radiography

1. When lights up and
“READY” appears on the first line
of the display, the unit is ready for
exposure.

• Keep as far away from the tube
assembly as possible.

2. The handswitch is a two-position
switch.
Pos. 1: preparation (approx. 1 s)
Pos. 2: release exposure.

• You can press the switch straight
through to position 2. Until
exposure release about another

1.2 s elapse (approx. 2.4 s on the
115 V version).

• Keep the switch pressed until
exposure has been completed
properly (three beeps); then let
go.

PRACTIX

100 plus

READY
MANUAL
70 4.0

kV

– + +

PHILIPS

Ready

mAs

Reset

1

2

3

4

–

12

During exposure

– The indicator lights up

(“Radiation ON”).

– The indicator goes out

(“Unit ready for radiation”).

After exposure

– Three beeps indicate that the

exposure has been completed
properly

– The exposure time appears in ms

on the fourth line of the display,
until the next change in exposure
parameters or until the next
exposure

– The “WAIT” display appears on

the first line if a waiting period is
necessary

– The unit is ready for the next

exposure when the
indicator lights up and “READY”
appears on the first line of the
display.

PRACTIX

PRACTIX

100 plus

MANUAL

70 4.0

kV

– + +

100 plus

BUSY
MANUAL

70 100 ms 4.0

kV

– + +

Ready

Ready

PHILIPS

Reset

1

2

3

mAs

4

–

PHILIPS

Reset

mAs

1

2

3

4

Note: The exposure
parameters illustrated
are only examples.

–

18

If you let go of the handswitch
prematurely

– Radiation will be interrupted
–A long beep (1.2 s) indicates that

exposure has not been complet­ed properly

– “EXP. INTERRUPTED” appears

on the first line

– The mAs value used so far

appears on the fourth line.

• Press to acknowledge the
message. Then repeat the expo­sure.

PRACTIX

100 plus



MANUAL
70 2 mAs 4.0

kV

– + +

Ready

MAN STOP RX

–

mAs

PHILIPS

Reset

1

2

3

4

Terminating operation

Never pull out the mains
plug when the unit is
switched on.

• First switch OFF the unit with

• Then pull out the plug (not pulling
on the cable)

•Wind up the cable

• If necessary, prepare the unit for
transport (see page 10).

Parking the unit (in the parking
position)

PRACTIX

100 plus

Ready

kV

– + +

mAs

–

PHILIPS

Reset

1

2

3

4

1. Swing the tube carrier arm down
until the transport securing device
locks in place (see page 10); in
doing so, set the tube assembly
vertical and tighten up the fixing
grip.

2. Set the travel joystick to the left.
The wheels are set at left angles
and the brakes are applied.

19

Operation

• After exposure the dose area products will be added until you
reset to ”0” or switch off the unit.

• If you use additional filters in the lower rails of the collimator,
the displayed DAP values are not conform with the factual
values.

• Philips recommends to calibrate the Diamentor every two years
(refer to the Service Manual).

• Philips recommends to reset the DAP value to ”0” after
examination of every patient.

Remote control (option)

•Make sure that no more IR transmitter with the same safety code are
used in your house.

• Use remote control: Switch on remote control on selection switch. The
receiver indicators lit green.

• Point the remote control laterally at the unit to ensure a safe connection.

• Do not allow unauthorized use.

• The receiver indicators flicker green at IR connection between unit and
remote control.

• Switch on light beam lamp to check position of radiation area.
The LED is lit.

• Release exposure;
this switch is a two-step switch too.
Both LEDs are lit.

•Warning signals
– If the remote control is not inserted into the holding device for more

than 3 min, every 30 s a warning signal can be heard. For examination
2 min are available. After 5 min every 30 s a triple beep can be heard.
That means that the remote control will switch off soon. Put the

remote control into the holding device at the unit.
– Change the battery if both LEDs are flashing.
– At malfunction the receiver indicator lits red.

20

Programming

Saving APR parameters

The factory-set kV and
mAs values in the APR
programs may only be
changed and stored by
authorised personnel.

Requirements:

• Saving APR values is possible
(setting by Customer Service).

• The unit is in the Programmed
Exposure mode (see page 16).

• The APR program to be changed
is selected.

• You have changed the default
exposure parameters; this is
indicated by “*” on the display.

• You wish to save the changed
exposure parameters permanent­ly as a preset for the APR
program.

PRACTIX

100 plus

READY
SKULL/TRUNK
Pelvis ap
69 4.0

kV

– + +

Ready

PHILIPS

Reset

1

2

3

mAs

4

–

To save:

• Press and keep it pressed,

then press until “*” disap­pears.

PRACTIX

100 plus

READY
SKULL/TRUNK
Pelvis ap
69 4.0

kV

– + +

Ready

PHILIPS

Reset

1

2

3

mAs

4

–

•With you return to
the APR programs.

•With you return to
the APR programs.

If you press again
you return to the main
menu (Manual Expo­sure)

21

Maintenance

As with any technical appliance this X-ray equipment
also requires
– proper operation,
– regular testing by the user,
– regular service and repair.

By taking these precautions you maintain the operability
and operational reliability of the system. As the user of
an X-ray unit you are obliged according to accident
prevention regulations, the medical products law and
other regulations to take such precautions.

Maintenance consists of tests which the user can
perform and maintenance which is performed under
service agreements, Philips service orders or by per­sons explicitly authorised to do so by Philips.

Safety checks according to the Medical Device
Directive

The safety checks cover operability and operational
reliability. They must be performed at least every 2
years. These tests constitute part of our preventive
maintenance under our service agreements.
They cover
– visual checking for completeness and apparent

damage or defects as well as soiling, sticking parts
and wear and tear which may affect safety,

– testing the necessary monitoring, safety, display and

indicating systems,
– measuring the safety-relevant output parameters,
– checking electrical safety as well as the operability of

an internal energy supply,
– for the particular product other special technical tests

according to the generally accepted standards of

engineering practice,
– other necessary tests specified by the manufacturer,
– recording results and filing the test reports in the

X-ray system manual (medical products logbook).

Tests by the user

The user must check the X-ray equipment for apparent defects (see table). If operational defects or other depar­tures from normal operational behaviour occur, he must switch off the X-ray unit and inform the Service Organisa­tion. He may only resume operation of the X-ray equipment when it has been repaired. Operation using faulty
components may lead to an increased safety risk or unnecessarily high exposure to radiation.

Interval Scope Method

Daily Stability test

Daily Faulty display lamps, damaged components, labels and warning signs Inspection

Weekly All cables and terminals (damage, breakage) Inspection

Weekly Oil leaks and unusual noises emanating from the high-voltage generator Inspection

6 months Centring aids for X-ray tube assembly and image receptor (marks, catches, contacts) Inspection

22

X-ray units contain mechanical components such as
drive chains, ropes, steel strips and gears which are
subjected to wear and tear due to operation. They
include means of suspension for heavy components
(e.g. image intensifier, X-ray tube assembly etc.). After
a lengthy period of operation the safety of the suspen­sion may be impaired by wear and tear (e.g. rope
break).

The correct setting of the electromechanical and elec­tronic assemblies affects the functioning, image quality,
electrical safety and exposure of the patient and medi­cal personnel to radiation.

Philips recommends you to
– perform the tests indicated in the table on a

regular basis,

– have the X-ray unit serviced by the Philips Service

Organisation at least once a year. You must have
heavily used X-ray equipment subjected to main­tenance more frequently.

In this way you avoid endangering the patient and you
meet your obligations.

Main fuse

If there is an excess flow of electric current, the circuit
will be broken by a fuse.

• Reset the fuse by pressing the green button.

By entering into a service agreement with Philips you
retain the value and safety of your X-ray equipment. All
the necessary maintenance, including the safety tests
for the purpose of preventive avoidance of danger and
the necessary settings for optimum image quality and
minimum exposure to radiation, are performed at
regular intervals. Philips agrees on these intervals with
you, taking the legal requirements into account.

Repairs

Faulty components which affect the safety of
the X-ray equipment must be replaced by
genuine spare parts.

Recording results

Service and repairs must be entered in the medical
products logbook, including the following data:
– type and scope of work,
– if necessary, details of any changes to ratings or the

working zone,

– date, person performing the work, signature.

23

Maintenance

Cleaning

Please bear the following in mind when choosing a
detergent:

To clean plastic surfaces you must never use anything
other than soap and water. If other detergents are used
(e.g. with a high alcohol content) the material will
become matt or tend to crack. Never use any corrosive,
solvent or abrasive detergents or polishes.

When cleaning, please observe the following:

• Before cleaning the X-ray equipment switch off at the
mains. The capacitor may still be live 4 hours after
switching off.

• Ensure that no water or other liquids can enter the
X-ray equipment. This precaution prevents electrical
short-circuits and corrosion forming on components.

• You should wipe enameled parts and aluminium
surfaces only with a damp cloth and mild detergent
and then rub with a dry woollen cloth.

• Rub down chrome parts with a dry woollen cloth
only.

Disinfection

The method of disinfection used must conform to the
legal regulations and guidelines regarding disinfection
and explosion protection.

Never use any corrosive, solvent or abrasive deter­gents or polishes.

If you use disinfectants which form explosive
mixtures of gases, these must first have
evaporated before you switch the X-ray
equipment on again.

• Before disinfecting the X-ray equipment switch off at
the mains. The capacitor may still be live 4 hours
after switching off.

• You may disinfect all parts of the X-ray equipment,
including the accessories and connecting cables, by
wiping only.

• Disinfection by spraying is not to be recommended
because the disinfectant may enter the X-ray equip­ment.

• If you perform a room disinfection with an atomizer,
you must switch off the X-ray equipment first. When
the X-ray equipment has cooled down, cover it over
carefully with a plastic sheet. When the mist of
disinfectant has subsided you can remove the plastic
sheets and disinfect the X-ray equipment by wiping.

24

Technical data

Mechanical data

Focal spot-floor distance

Rotation of tube assembly round the
horizontal axis of the carrier arm

Rotation of tube assembly round its
longitudinal axis

Cassette compartments

For operation/transit and storage:

– Ambient temperature

– Rel. humidity

– Atmospheric pressure

Weight

Generator

Safety class (IEC 60601-1)

Power supply

456 mm ... 2018 mm

± 180°

-18° … +133°

For four cassettes each up to 35 cm x 43 cm

+10 °C … +40 °C / -25 °C … +70 °C

30% … 75% / 10% … 90%

700 hPa … 1060 hPa

170 kg

Class I/B

230 V, 50 Hz/60 Hz;
115 V, 50 Hz/60 Hz;
single-phase with earth lead

Automatic compensation for voltage
fluctuations

Maximum current input

Mains resistance and fuses

Nominal power (IEC 60601-1/90)

kV values

mAs values

Max. tube currents (230 V )

± 10%

9 A

at 230 V: 1 Ω, T 16 A
at 115 V: 1 Ω, T 16 A

11 kW at 100 kV and 100 ms

40 kV … 125 kV in 1-kV steps

at 230 V and 115 V: 0,2 mAs … 125 mAs in 12.5% steps

t≤100 ms t>100 ms Q<0,63 mAs

125 kV 75 mA 38 mA 38 mA
110 kV 90 mA 45 mA 45 mA
100 kV 110 mA 55 mA 55 mA
40 kV 140 mA 70 mA 70 mA

25

Technical data

X-ray tube

Nominal voltage

Focal spot

Cathode

Anode

Filtration

X-ray tube assembly

Nominal focal spot value

Maximum filament current for connection to the
generators

Nominal input power for the equivalent anode input
power of 20 W
Maximum heat dissipation during continuous operation
Maximum anode heat content
Anode diameter
Rotating speed/target angle
Anode material

Not removable (filter value: Al equivalent)

Maximum continuous heat dissipation
Maximum housing temperature
Maximum heat storage capacity
Radiation protection load factors
Safety class
Thermal safety switch for interlocking the generator
Ambient temperature for operation
Temperature for transport and storage

125 kV

0,8

5.4 A

11 kW

175 W
50 kJ
64 mm
3 000 min
Tungsten

≥ 0.7 mm Al/100 kV
(IEC 60522/1999)

55 W
57 °C
600 kJ
125 kV, 2500 mAs/h
Class 1/B
switches at 57 °C ± 3 °C
+10 °C … +40 °C
–25 °C … +70 °C

–1

/ 17.5°

Maximum radiation field

Diaphragm

SID 100 cm

43 cm x 43 cm

35 cm x 35 cm

Field size considering
the heel effect

Rotation
Timer for light beam lamp
Light beam lamp

SID 80 cm

reference axis

± 130°
30 s
12 V / 100 W halogen

X-ray tube assembly
with diaphragm

26

Total filtration (Al equivalent)
Permissible leakage radiation

>2.7 mm (100 kV)
<1 mGy/h in 1 m dist. from
focus, 125 kV, 2500 mAs/h

50

40

30

20

10

0

E [kJ]

t [min]

05

10

15

500 W

300 W

100 W

200 W

50 W

Abkühlung / cooling

refroidissement / enfriamiento

Rating charts

I [mA]

300

250

200

150

100

50

50 kV
60 kV
70 kV
80 kV
90 kV

100 kV

110 kV
120 kV
130 kV

Heating and cooling curves of the anode

0

0.01

0.1 1 10

Heating and cooling curves of the tube assembly
(tank unit)

E
[kJ]
600

300

0

0

60

E

max

120

180

Technical drawing of the X-ray tube X20

t [s]

240



t [min]

60 cm

40 cm

ø 46

ø 16

122

100 cm

70 cm

17.5°

216

25

ø 64

ø 70

ø 80

27

Technical data

X-ray system with

Product name

PRACTIX 100 plus

Type designation

9890-010-81791

X-ray generator

X-ray tube assembly

X-ray tube
Beam limitation system

MHF 2011 f. P100+
X 20 0,8
P 232 f. Practix 100+

4512-132-23001

4512-104-65262

Manufacturer: Philips Medical Systems, Development and Manufacturing Centre, Hamburg

Type plates

PHILIPS

Philips Medical Systems
Development and Manufacturing Centre
Röntgenstraße 24
D–22335 Hamburg / Germany

Mobile Medical
X-ray System

Type:

Ser. No.:

Input: V

Phase Hz

A A

Date Mfg.:

PRACTIX 100 plus

9890–010–81791

230 / 115

1 50 / 60

16 9

IEC 601–1

TYPE B

0123

Made in Italy

Tank Unit

Ser. No.:

X-ray Tube:

~

Ser. No.:

U: 125 kVp max I: 140 mA

Total filtration
2,7 Al/100 kV 0,8 IEC 336/93

TECHNIX S.p.A.

Via E. Fermi 26, GRASSOBBIO – BG

TECHNIX

MHF 2011 f.P100+

X20 0,8

Made in Italy

0051

at the rear of the remote control

Philips Medical Systems

PHILIPS

type 4512 104 67321
s/n 04 00 001
Remote Control for Mobile

DMC GmbH
Röntgenstrasse 24
D-22335 Hamburg/Germany

PHILIPS

BEAM LIGHT DEVICE
type : 4512–104–65262
s/n : …………………
Collimator P232 f. Practix 400

Practix 100+

Philips Medical Systems
Development and Manufacturing Centre
Röntgenstraße 24
D–22335 Hamburg / Germany

INHER FILTRATION
2 mm Al / 80
IEC 522/1976

Made by

Ralco

0051

28

Appendix

Exposure table

Part of body kV mAs SC [DIN]1kV mAs S [DIN] Remarks

Skull and trunk

Skull a-p/p-a
Skull lat.
Cervical spine a-p
Cervical spine lat. / oblique
Dorsal spine a-p
Dorsal spine lat.
Lumbar spine a-p
Lumbar spine lat. / oblique
Hip a-p
Pelvis a-p
Thorax, recumbent (bed)
Ribs 1-7
Ribs 8-12
Abdomen
Abdomen lateral

78
74
66
74
78

80-85

78
85
77
77
85
66
78
85
90

5

2.5

6.3

2.5

6.3
10

6.3
13

5

3.2

3.2

5

3.2

5
8

400
400
400
400
400
400
400
400
400
400
200
400
400
400
400

Upper extremities

Fingers
Thumb
Hand a-p
Wrist a-p
Wrist lat.
Lower arm and wrist a-p
Lower arm and wrist lat.
Lower arm and elbow a-p
Lower arm and elbow lat.
Elbow a-p
Elbow lat.
Humerus and elbow a-p
Humerus and elbow lat.
Humerus and shoulder a-p
Humerus and shoulder lat.
Shoulder a-p
Clavicle

46
46
46
48
50
52
52
56
56
56
56
60
60
66
66
66
66

1.6

2.5

2.5

2.5

2.5

3.2

4

2.5

4
4
5
4

5
10
10
16
10

200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200

29

Appendix

Part of body kV mAs SC [DIN]1kV mAs S [DIN] Remarks

Lower extremities

Toes
Tarsus a-p
Tarsus obl.
Metatarsus a-p
Metatarsus obl.
Talo-calcaneonavicular joint a-p
Talo-calcaneonavicular joint obl.
Talo-crural joint a-p
Talo-crural joint lat.
Calcaneum axial
Calcaneum lat.
Lower leg und TCJ a.-p.
Lower leg und TCJ lat.
Lower leg and knee a-p
Lower leg and knee lat.
Knee a-p
Knee lat.
Femur and knee a-p/lat.
Femur and hip a-p

46
48
48
50
50
56
52
55
56
56
52
58
58
60
60
66
66
66
74

2
2

2.5

2.5
4
4
2
4
4
5

3.2

2.5

2.5
4

3.2
4

3.2

6.3
5

200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
400

Pediatrics

60
60
60
62
65
68
70
72

2

0.2

0.3

0.4

0.4

0.4

0.4

0.4

0.4

400
400
400
400
400
400
400
400

• Added filter 1 mm Al + 0,2 mm Cu
Infant lung 0.8 - 1.0 kg
Infant lung 1.0 - 1.4 kg
Infant lung 1.4 - 1.8 kg
Infant lung 1.8 - 2.2 kg
Infant lung 2.2 - 3.0 kg
Infant lung 3.0 - 3.5 kg
Infant lung 3.5 - 4.0 kg
Infant lung 4.0 - 4.5 kg

The values apply to an SID of 100 cm without grid. For grid cassettes you must increase the mAs values by four
increments.
Please enter the kV, mAs and sensitivity S values valid for your equipment.

Example:

Ribs 1-7 66 5 400 66 4 480

1

) SC is the sensitivity class. According to DIN 6867-10, a class 400 film/screen system (SC = 400) can cover a sensitivity range of S

DIN to S

2

) The filter combination of 1 mm Al + 0.1 mm Cu is also permissible.

= 560 DIN. From the derived dose value Ks the tolerance for S will be approx. ± 30%.

max

= 320

min

30

31

© 2004 Philips Medical Systems DMC GmbH

All rights reserved. Reproduction in whole or in part is prohibited
without the prior written consent of the copyright-holder. Philips
Medical Systems DMC GmbH reserves the right to make changes in
specifications or to discontinue any product, at any time without
notice or obligation, and will not be liable for any consequences
resulting from the use of this publication.
Printed in Germany. 4512 109 26861AA/704H * 04.2004

Internet address: http://www.philips.com/ms