Philips Practix 100 plus Service manual

PRACTIX 100 PLUS

SERVICE MANUAL

Practix 100 plus

PMS 12NC: 9890-010-81791

Date:

Service manual

PMS 12NC: 4512-984-22741

File name: W3000_Rev1.doc

1.Technical data & labels

code: W3004_Rev0

2.Installation & Acceptance code: W3006_Rev0

3.Replacement code: W3010_Rev0

4.Adjustments code: W3012_Rev0

5.Faults finding code: W3014_Rev0

6.Service information code:W3016_Rev0

7.Parts list

code: W3018_Rev1 ****

8.Electrical drawings code: W3020_Rev0

9.Programmed maintenance code: W3022_Rev0

PRACTIX 100 PLUS

TECHNICAL DATA &

LABELS

[File: W3004_Rev0.doc]

PRACTIX 100 plus	Technical data & labels
SUMMARY
TECHNICAL DATA	2
Electrical characteristics ......................................................................................................................	2
Radiological characteristics..................................................................................................................	2
Monobloc ...........................................................................................................................................	3
Collimator ..........................................................................................................................................	3
Environmental data ............................................................................................................................	3
Operative modes ................................................................................................................................	4
Functionality ......................................................................................................................................	4
Accessories and options ......................................................................................................................	4
Mechanical characteristics ...................................................................................................................	5
Unit volume sizes ...............................................................................................................................	6
MHF 2011 Monobloc ...........................................................................................................................	7
Tube characteristics............................................................................................................................	8
LABELS	10
STANDARDS AND DIRECTIVES COMPLIANCE	11

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TECHNICAL DATA

Electrical characteristics

Description	Data
Voltage	115/230Vac ±10% Standard monophase with automatic
	unit predisposition in function of the mains line
Frequency	50/60Hz standard
Absorbed current	9A max. peak in radiography @ 230Vac
Line compensation	Automatic
Line resistance	<1Ω @230Vac
	< 1Ω @115Vac
Standard plug	16A @230Vac
Classification	Class I, applied parts type B
Use conditions	Continuos functioning with intermitting load

The unit is not suitable to the use where danger of mixtures inflammable with air or nitrous oxide exists.

Radiological characteristics

Description		Data
Generator power in DC current		11kW @100Kv
Inverter frequency		20kHz
Max. Ripple		<1% @100kV
Rise time		<2ms @100kV
kV Range		40 ÷ 125kVp in step of 1kV
mA range @115/230Vac						mA
		kV		mAs>0,63					mAs<0,63
				(t<100ms)		(t>100ms)			MODE2
				MODE1		MODE2
		40		140mA		70mA			70mA
		50		140mA		70mA			70mA
		60		130mA		65mA			65mA
		70		125mA		63mA			63mA
		80		120mA		60mA			60mA
		90		115mA		58mA			58mA
		100		110mA		55mA			55mA
		110		90mA		45mA			45mA
		120		80mA		40mA			40mA
		125		75mA		38mA			38mA
mAs range in function of	kV	0,2 125mAs in 57 steps with 12,5% inc.
@115/230Vac		From:		40 ÷ 42kV			0,2 ÷ 125mAs
				43 ÷ 62kV			0,2 ÷ 100mAs
				63 ÷ 72kV				0,2 ÷ 80mAs
				73 ÷ 102kV				0,2 ÷ 63mAs
				103 ÷ 125kV				0,2 ÷ 50mAs

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PRACTIX 100 plus	Technical data & labels

Monobloc

Description	Data
Monobloc type	MHF 2011
Weight	19kg.
X-ray tube type	IAE X20P
Anode	Rotating (2850rpm @ 50Hz) (3400rpm @ 60Hz)
Focus nominal extension according to IEC 336	0.8mm small focus
Nominal anodic power (for 1 sec.)	11kW small focus
Anode thermal capacity	50kJ (67kHU)
Anode disk diameter	64mm
Anode inclination	17,5°
Max. continuos thermal dissipation of the anode	175W
Max. anode cooling speed	13kJ/min (17,5kHU/min)
Monobloc thermal capacity	600kJ (800kHU)
Max. continuos thermal dissipation of monobloc	55W
Total filtration	2.7mm Al
Leakage radiation	<1mGy/h second IEC 601-1-3
Loading, heating, and cooling curves	Please refer to the enclosed diagrams
H.V. transformer isolation	Oil bath

Collimator

Description	Data
Type, brand and model	Manual with internal luminous source (Ralco P 232)
Collimation	Square field, multilayers
Brightness source	Halogen lamp 12V 100W with temporized ignition of approx. 30s
Field covering	43 x 43cm at focus film distance of 1m
Brightness intensity	160lux at focus film distance of 1m
Contrast ratio	4:1
Focus film distance measure	Extractable Meter
Inherent filtration	2mm Al
Rotation	±130°
Weight	8.4Kg.
Accessories	Predisposition of the ionization chamber insertion

Environmental data

Description	Normal use	Transport and warehouse
Temperature	From +10°C to +40°C	From -25°C to +70°C
Relative humidity	From 30% to 75% not condensing	From 10% to 90% not condensing
Pressure	From 700 to 1060hPa	From 500 to 1060hPa

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Operative modes

Mode	Characteristic	Performances
Radiography	Working Mode	At 2 points with kV and mAs setting
	APR Anatomic Mode	Memorization of 32 exams, (4 programs,
		each of 8 exam) available in the 4 selectable
		languages
	Small focus in any operating status	0,8mm
	kV variation range	40 125kV in step of 1kV
	mA variation range @115/230Vac	38 140mA associated in automatic to kV
	mAs variation range @115/230Vac	0,2 125mAs in 57 steps with 12,5%
		increases
	Times range @115/230Vac	0,0025 2s in function of the set mAs
	Exposure control	Constant kV and mA during the whole
		exposure
	Use coefficient (duty cycle)	1:40

Functionality

Description	Data
User’s interface	Keyboard with display (alphanumeric LCD, 4 lines x 20 characters) for
	every operating parameter and message of eventual anomalies.
	Service program for faults finding.
	Microcontroller management.
Selectable languages	English, French, German and Spanish, by a configuration program.
Radiography control	Push-button with extractendible cable. It’s shown the use of last kV value
	set in manual mode or APR.
	Upon the ignition the unit is set in manual mode with default values.
Safeties	Filament current.
	Monobloc temperature.
	Max. load exceeded.
	Max. kV or H.V. fault.
	Memory data check.
	Microcontroller auto test

Accessories and options

Description	12NC
X-ray control with extendible cable	4512-535-39761	Standard
Infrared X-ray control, model RAYMOTE III	9890-010-82071	Optional
Ionizing chamber dosimeter, model DIAMENTOR PX	9890-010-81141	Optional

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PRACTIX 100 plus	Technical data & labels

Mechanical characteristics

Description	Data
Weight	170kg approx.
Max. width	670mm
Length in transport position	1277mm
Max. height in transport position	1438mm
Max. height with arm at the max. extension	2258mm
Control console height	970mm
Focus-floor distance	456 2018mm
Arm rotation around the vertical axis	n.d.
Monobloc rotation around the arm axis	±180°
Monobloc rotation around its axis	153° (+104° ÷ -49° towards the vertical axis)
Max. height of the unit front leg	105mm
Cassette holder	5 cassettes, 35 x 43cm format
Movement	Manual.
	Double front swiveling wheel.
	Double rear wheels driven by the handle placed
	on the unit stand near the console.
	Stationary brake activation by the same handle
	for the rear wheels driving.
	Tilting pedal (obstacles over passing).
Wheels diameter	Rear: double wheel	150mm width 30mm
	Front: double wheel	80mm width 25mm
Please refer to the drawing enclosed

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Unit volume sizes

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MHF 2011 Monobloc

Sizes

Monobloc cooling and heating curves

Stored energy (kJ) / Time (min)

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Tube characteristics

Sizes

Single load rating 0.8 - 3~ - 3000min-1

Tube current (mA) / Time. (sec)

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Anodical cooling and warming curves

Stored energy (kJ) / Time (min)

Filament emission curve

Filament current / Anodical current (mA)

Filament current / Filament voltage (V)

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LABELS

inverter label

unit label

monobloc internal label

monobloc external label

collimator label

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STANDARDS AND DIRECTIVES COMPLIANCE

Reference	Description
MDD 93/42/EEC	Medical Devices Directive (CE mark)
89/336/EEC	Electromagnetic compatibility
EN IEC 60601-1	Medical devices safety
EN IEC 60601-1-2	Electromagnetic compatibility
EN IEC 60601-1-3	Protection against ionizing radiation
EN IEC 60601-1-4	Software safety
EN IEC 60601-2-7	High voltage generators
EN IEC 60601-2-28	X-ray tube assemblies – housing
EN 1441	Risk analysis
IEC 336	X-ray tubes focus
UL 187	USA standard
FDA	USA standard
CDHR	USA standard
CSA	Canada standard

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DOCUMENT STATUS

Rev.	Date	Page/s	Modifiction description
0			Document approval
1
2
3
4
5

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PRACTIX 100 PLUS

INSTALLATION & ACCEPTANCE

[File: W3006_Rev0.doc]

PRACTIX 100 plus	Installation & Acceptance
SUMMARY
HOW TO PROCEED	2
PRELIMINARY INFORMATION	3
UNIT UNPACKING	4
Unpacking procedure..........................................................................................................................	4
Packing and content description ..........................................................................................................	7
SIGHT CHECK OF THE UNIT INTEGRITY	8
PRELIMINARY KNOWLEDGES	8
MECHANICAL TESTS	9
UNIT SUPPLY	11
Preliminary operations ......................................................................................................................	11
Mains connection..............................................................................................................................	11
ELECTRICAL TESTS (NO IRRADIATION)	12
Ignition - Start up - Ready ................................................................................................................	12
Collimator check...............................................................................................................................	12
Data setting and preparation check ...................................................................................................	12
TUBE PREPARATION	13
ACCURACY TEST	14
Output data check ............................................................................................................................	14
X-ray irradiation field check...............................................................................................................	15
UNIT CONFIGURATION	16
Default configuration ........................................................................................................................	16
Customer’s configuration ..................................................................................................................	16
Configuration sheet......................................................................................................................	17
Configuration ...................................................................................................................................	18
Date and time setting .......................................................................................................................	18

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PRACTIX 100 plus	Installation & Acceptance

HOW TO PROCEED

For the proper and safe unit installation please follow, step by step, the INSTALLATION SHEET. Proceed with the next operation ONLY once the previous steps have been properly completed.

INSTALLATION SHEET

	1.	Preliminary knowledges and information		yes	no
	2.	Unpacking and content verification		yes	no
	3.	Sight check of the unit integrity *		yes	no
	4.	Reading of the chapter “Service information”		yes	no
	5.	Mechanical tests*		yes	no
	6.	Check of the unit compatibility with mains		yes	no
	7.	Electrical tests (do not perform x-ray)*		yes	no
	8.	X-ray tube preparation*		yes	no
	9.	X-ray tests*		yes	no
	10. Request of data configuration to the user			yes	no
	11.		Unit configuration	yes	no
	12.		Now the unit is ready for the use	☺
				!!EUREKA!!
	* Acceptance phase

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PRACTIX 100 plus	Installation & Acceptance

PRELIMINARY INFORMATION

This unit has been assembled and checked in factory following methods certified both for production and testing. The same methods are in compliance with the most recent international Standards and with the European Directive for Medical Devices (93/42 CEE).

During checking phase it is draught a Test Report including the following information is draught:

•Output data accuracy (kV-mA-time) test

•Light field X-ray field conformity test

•Electrical safety (PE resistance and leaked currents)

To ensure the unit safety and efficiency even during the transport between firm and user, some tests and functional checks are required. It is necessary to perform those tests upon installation.

To check the output data, therefore kV and X-ray time measurements, the use of non-invasive tools is required. Should tools be not available, check these values on the unit display directly (see next pages).

Perform what described in this chapter, even if additional and specific acceptance tests are required (i.e. by hospital or Government).

DO NOT PERFORM HAZARDOUS OPERATIONS

ELECTICAL SHOCK DANGER

Even if the mains plug is disconnected a dangerous voltage can be present inside the unit in case the capacitors battery is no completely discharged.

PERFORM THE DISCHARGE PROCEDURE

Before removing the Plexiglas protection or performing an operation on Capacitors Battery, Power Unit, Inverter Powe Circuits and Monobloc it is necessary to discharge the capacitors battery.

THE DISCHARGE PROCEDURE IS DESCRIBED IN THE CHAPTER “Faults finding”.

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PRACTIX 100 plus	Installation & Acceptance

UNIT UNPACKING

Unpacking procedure

This procedure requires a two operators intervention. For its performance, it is necessary to use a fork key ø17mm to remove clamps and a screwdriver to remove the packing screws.

1.Remove the packing cover.

2.Loosen the nuts which fix the clamps and remove the arm belt.

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3.Remove every clamp.

4.Remove the polystyrene protecting the monobloc and the anterior wood block .

5.Remove the posterior wood block.

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6.Act on the tilting lever and arise the unit frontal part, remove the central wood block.

7.Then, by using the skid, operate very carefully and remove the unit from the pallet.

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PRACTIX 100 plus	Installation & Acceptance

Packing and content description

The packing includes:

q.ty				description			TX cod.	12NC
1	PRACTIX 100 plus						62915	9890-010-81791
					Manuals
1	User’s manual in English language							4512-109-23042
1	User’s manual in German language							4512-109-23041
1	User’s manual in French language							4512-109-23043
1	User’s manual in Spanish language							4512-109-23044
1	Service manual (english)						X3000	4512-984-22741
					Paints
1	Touch kit paints composed by:						62428	4512-535-39211
	1	Gray	SF8758
	1	Pink	SF8582
	1	Mushroom SF6998
					Parts
1	Spare parts set composed by:						62918	4512-132-23131
	1	Halogen lamp 12V - 100W					11449	4512-535-38731
	1	Fuse 5x20		T 250mA / 250V			11361	4512-132-23141
	1	Fuse 5x20		T 500mA / 250V			11288	4512-535-37301
	1	Fuse 5x20		T 1A / 250V			11289	4512-535-37291
	2	Fuse 5x20		T 4A / 250V			11292	4512-535-37331
	1	Fuse 5x20		T 10A / 250V			11150	4512-535-37271
	2	Ceramic extrafast fuse 10x38 20A - gR/ 600V					11917	4512-132-23151
	2	Extrafast fuse 63A - ETF / 660V					11456	4512-132-23161
	4	Support for board locking			EHCBS - 6	(h=10mm)	11872	4512-132-24361
	2	Support for board locking			EHCBS - 16	(h=25mm)	11867	4512-132-23181
	4	Cables medium clip 150x3,6mm					11234	4512-535-23191

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PRACTIX 100 plus	Installation & Acceptance

SIGHT CHECK OF THE UNIT INTEGRITY

After the unpacking phase perform the following checks:

1.Labels

2.Covers painting

3.Keyboard

4.Collimator and monobloc

5.Handles

6.Mains cable

7.X-ray button and button cable

8.Generator-monobloc-collimator connecting cable

PRELIMINARY KNOWLEDGES

Before proceeding with the unit installation the technician has to carefully read the chapter “Service information”. It includes several useful information to perform the installation properly.

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MECHANICAL TESTS

1.Move the unit from the parking condition (unlock the arm) by pulling and rotating (90°.) the release pawl.

parking position

locked arm

unlocked arm

2.Check the arm movement and balancing in every operative position, as shown in the picture.

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3.Check the monobloc group balancing and rotation towards the longitudinal axis.

4.Unlock the monobloc brake and check the monobloc group rotation (±180°) around the horizontal axis. Furthermore check the right gonimeter indication.

5.Check the proper collimator rotation around his vertical axis (±135°).

6.Check the stationary brake and the directional handle.

Place the handle in the following positions (refer to the label attached on the arm column) and check the proper functioning:

•pos. 1: brake ON

•pos. 2: oblique left-right motion

•pos. 3: backward-forward motion

•pos. 4: oblique right-left motion

•pos. 5: left-right motion

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PRACTIX 100 plus	Installation & Acceptance

UNIT SUPPLY

Preliminary operations

The Practix 100 plus automatically adapts to the mains.

The unit performances do not depend on mains voltage (115V or 230V).

Only the anode starting time and, as a consequence, the preparation time, depend on the mains voltage (0,8s @230Vac - 1,6s @115Vac). These parameters are automatically set by the unit.

Before connecting the unit to the mains check the following:

1.	mains voltage..........................................	115V or 230V (±10%) monophase
2.	mains frequency......................................	50Hz or 60Hz
3.	available power .......................................	3kW (16A max)
4.	mains plug with earth connection

Before connecting the mains make sure that the PLUG IS GROUNDED.

Mains connection

Then it’s possible to connect the unit to the mains.

The mains voltage presence is indicated by the turning ON of the yellow led placed aside the ON button. Should the led be OFF, make sure that the automatic switch is turned ON.

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PRACTIX 100 plus	Installation & Acceptance

ELECTRICAL TESTS (NO IRRADIATION)

Never perform an exposure in this phase. It may be dangerous for the unit integrity.

Ignition - Start up - Ready

1.Turn the unit ON (press the ON button) and follow step by step the Start up sequence, checking its proper performing (refer to chapter “Service information”).

2.If no problem is detected the display will show the message “READY” after the Start up phase.

Collimator check

1.Completely open the collimator blades.

2.Press the COLLIMATOR button located on the keyboard (or on teh same collimator), turn the collimator lamp on and check its proper functioning (approx 30s long).

Data setting and preparation check

1.Verify the functioning of the kV and mAs increase/decrease buttons.

2.Perform X-ray preparation (just press the first step of the button for 3s at least) and check the proper anode rotation.

3.Upon the button release, check the anode proper braking.

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PRACTIX 100 plus	Installation & Acceptance

TUBE PREPARATION

Warning: X-ray presence, use proper protections.

Arrange the tube for X-ray performing the Warm-up (Warm sub-procedure) and the kVup subprocedure (kV step-up). Perform these procedures with the TUBE SEASONING program (refer to SERVICE MODE, chapt. “Service information”).

At Start up, after a long inactivity period (3 months or more) the display will show “TUBE SEASONING” message. Therefore, it’s necessary to proceed with the TUBE SEASONING program (refer to SERVICE MODE, chapt. “Service information”).

After the seasoning DO NOT perform any exposure. Let the monobloc cool down for 8 minutes at least.

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ACCURACY TEST

Output data check

Warning: X-ray presence, use proper protections.

Place in the X-ray field a non-invasive tool for the kV and X-ray time measurements according to what indicated in the tool manual.

Perform the exposures listed in this table and verify that the measured values are in the allowed limits.

	Set data output			Theorical	Measured value			Acceptance limit data
				time				output
	kV		mAs	[ms]	kV		time [ms]	kV		time [ms]
	60		12,5	96	............		............	57 - 63		91 - 101
	80		12,5	104	............		............	76 - 84		98 -109
	80		63	950	............		............	76 - 84		902 - 998
	100		11	100	............		............	95 -105		95 - 105

Without the tool:

•it’s possible to check the X-ray time on the unit display directly; this is automatically displayed after every exposure;

•it’s possible to check the kV (and anodic current) from the SERVICE MODE, by the TEST KVmA option, as described in the chapter “Service information ”.

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X-ray irradiation field check

Warning: X-ray presence, use proper protections.

This test verifies the correspondence between collimator light and X-ray field.

1.Place under the collimator, at 1m from the focus, a 18x24 cassette with film.

2.Press the COLLIMATOR button (both on collimator and keyboard); the lamp will be ON for approx. 30s.

3.Rotate the handles placed on the collimator and adjust the shutters opening, in order to light the whole surface of the cassette.

4.Perform an exposure (i.e. 63kV/10mAs) and check the proper irradiaton of the film (at least within the requested tolerance).

The X-ray data/parameters vary in function of the cassette type.

As alternative to the cassette it’s possible to use a fluorescent, graduated, high persistence screen (field position analyzer).

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