Planmeca Intra Service manual

EN

technical manual

12_10006491

			TABLE OF CONTENTS
1	GENERAL & TECHNICAL DATA ..........................................................		1
	1.1	Warnings and cautions ................................................................................................................	1
	1.2	Manual versions ...........................................................................................................................	2
	1.3	Technical specifications ...............................................................................................................	3
	1.4	User’s statement for Planmeca Intra ...........................................................................................	5
	1.5	EMC information ..........................................................................................................................	8
2	SERVICE MODE ...................................................................................		12
	2.1	Control panel .............................................................................................................................	12
	2.2	How to enter/exit the service mode ...........................................................................................	12
	2.3	X-ray tube filament preheating voltage calibration .....................................................................	13
	2.4	kV range selection .....................................................................................................................	13
	2.5	Operation of the preprogrammed settings keys (kV hold) .........................................................	14
	2.6	Dimming the displays .................................................................................................................	15
	2.7	Duration of the displays dimming time-out .................................................................................	16
	2.8	Disabling the exposure key ........................................................................................................	17
	2.9	Automatic identification of the cascade card .............................................................................	18
	2.10	Specifying the PCB versions .....................................................................................................	18
	2.11	Ready-state setting ....................................................................................................................	19
3	RECALLING THE FACTORY PREPROGRAMMED EXPOSURE
	VALUES ................................................................................................		20
4	TROUBLESHOOTING ..........................................................................		21
5	ERROR MESSAGES ............................................................................		22
	5.1	Error message shortform table ..................................................................................................	22
	5.2	Detailed error message explanations ........................................................................................	23
6	MECHANICAL ADJUSTMENTS ..........................................................		28
	6.1	Adjusting the balance of the arm ...............................................................................................	28
	6.2	Adjusting the bracket arm angles ..............................................................................................	29
	6.3	Adjusting the stiffness of the tube head’s horizontal axle ..........................................................	30
	6.4	Vertical tube head stiffness adjustment screw ...........................................................................	31
7	PARTS REPLACEMENT & REPAIR ....................................................		32
	7.1	Replacing the Generator PCB ...................................................................................................	32
	7.2	Replacing the tube head PCB ...................................................................................................	35
	7.3	Replacing the tube head ............................................................................................................	36
	7.4	Replacing the arm cables ..........................................................................................................	37
	7.5	Replacing the control panel cable ..............................................................................................	44
8	DIAGRAMS ...........................................................................................		45

COPYRIGHT PLANMECA 2007-10

PUBLICATION NUMBER 10006491 revision 12

Technical manual

Planmeca Intra x-ray unit TOC-1

GENERAL & TECHNICAL DATA

1 GENERAL & TECHNICAL DATA

1.1Warnings and cautions

WARNING

THE FOLLOWING WARNINGS, CAUTIONS AND NOTES MUST ALWAYS BE CONSIDERED WHILE SERVICING THE UNIT, IN ORDER TO AVOID EITHER PERSONAL INJURY OR DAMAGE TO THE UNIT.

CAUTION

RADIATION SAFETY RULES

Some procedures described in this manual produces X-ray radiation. Always follow the rules for radiation protection.

Never attempt to open the tube head. It does not contain any serviceable parts, and radiation safety could not be guaranteed any more.

CAUTION

ELECTRICAL SAFETY RULES

The unit contains hazardous voltages. While servicing internal parts, always turn off externally the power to the unit, and wait for 2 minutes before touching any electrical parts.

Always replace the fuses with ones of the same type and rating. Otherwise patient, operator or equipment safety cannot be guaranteed.

The circuit boards can be damaged due to static discharges and require careful handling.

CAUTION

GENERAL SAFETY RULES

The unit must be serviced only by qualified personnel, trained by PLANMECA. Repairs and parts replaced by unqualified personnel carry no warranty.

Periodical maintenance as described in this manual must be performed on a regular basis, to ensure the safety and image quality of the unit.

Some procedures described in the unit could be dangerous, if not followed as stated.

Technical manual

Planmeca Intra x-ray unit 1

GENERAL & TECHNICAL DATA

CAUTION

Check that the X-ray unit is installed properly and no mechanical play caused by wear, corrosion, metal fatigue or ageing can be found between the wall bracket and horzontal arm.

1.2Manual versions

Planmeca pursues a policy of continual product development. Although every effort is made to produce up-to-date product documentation this publication should not be regarded as an infallible guide to current specifications. We reserve the right to make changes without prior notice.

NOTE	This manual is only valid for the software versions from 3.01 and
	later.

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GENERAL & TECHNICAL DATA

1.3Technical specifications

Generator	Constant potential, microprocessor controlled,
	operating frequency 66 kHz
X-ray tube	Toshiba D-0711SB
Focal spot size					0.7 mm according to IEC 60336
Cone diameter					mm (2.36 in.)
	60
	Rectangular 33 x 43 mm (1.30 x 1.69 in.)
Max. symmetrical radiation field	ø 60 mm at SSD 200 mm
	ø 60 mm at SSD 300 mm
	according to IEC 806
Total filtration	min. 2 mm Al equivalent at 70 kV
	according to IEC 60522
Inherent filtration	1 mm Al equivalent at 70 kV
	according to IEC 60522
Anode voltage	50, 52, 55, 57, 60, 63, 66, 70 kV, ±2 kV
Anode current	8, 7, 6, 5, 4, 3, 2 mA ±(5% + 0.2 mA)
Target angle	16°
Exposure times	0.01-3.2 sec. ±(5% + 0.001 sec.), 26 steps
Reference current time product	8 mAs at 70 kV, 8 mA, 1 sec.
Lowest current time product	0.02 mAs at 2 mA, 0.01 sec.
Max. nominal anode voltage	70 kV
Max. electrical output	560 W at 70 kV, 8 mA
Electrical output at 0.1 sec.	560 W at 70 kV, 8 mA
Max. loading energy	1800 mAs/h at 70 kV
SSD (Source-Skin Distance)
Standard/Long	200 mm (8 in.)/300 mm (12 in.)
Long with rectangular collimator	306 mm (12.04 in.)
Mains voltage	100 V~/110-115 V~/220-240 V~
Apparent resistance	0.3 ohms 110-115 V~ /
	0.8 ohms 220-240 V~
Mains frequency	50/60 Hz
Fusing	8 AT 250 VAC at 220-240V~
	15 AT 250 VAC at 100 V~/110-115 V~
Duty cycle	1:15, automatic control
Electrical classification	Class I
	Type B

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Planmeca Intra x-ray unit 3

GENERAL & TECHNICAL DATA

Mechanical data

Weight	total 23 kg (51 lbs)
	tube head 4.2 kg (9.3 lbs) with standard cone
	4.5 kg (10 lbs) with long cone
Color	RAL 9016

Environmental requirements

Ambient temperature	operating +5°C - +40°C storage -10°C - +50°C
Humidity	25% - 75%

External mains fuse recommendation

The recommendation for the external mains fuses are:

•	units with 100V~ or 115V~ voltage setting:	16A, time lag
•	units with 220-240V~ voltage setting:	10A, time lag

No other equipment should be connected to the same fused mains line as the x-ray unit. In some countries an additional external fault current guard is also required.

Original manufacturer

PLANMECA Oy, Asentajankatu 6, FIN-00880, Helsinki, FINLAND phone: [phone]

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GENERAL & TECHNICAL DATA

1.4User’s statement for Planmeca Intra

Radiation leakage technique factors

The maximum rated peak tube potential is 70 kV and the maximum rated continuous tube current is 0.53 mA for the maximum rated peak tube potential.

Minimum filtration

The radiation port contains an added 1.0 mm aluminium filtration. The measured half-value is 0.50 - 0.55 at 70 kV. The measured value corresponds to an aluminium equivalent of 2.0 mm.

Rated line voltage

100, 110-117, 220-240 V~ ±10%. Line voltage regulation 10%.

Maximum line current

6.1 A at 230 V~, 12.2 A at 115 V~

Technique factors that constitute the maximum line current condition

70 kV, 8 mA

Generator rating and duty cycle

1.4 kW, duty cycle 1:15. The wait period is controlled automatically by calculating it according to the formula tw = 15 x texp.

Maximum deviation of peak tube potential from indicated value

± 2.0 kV

Maximum deviation of tube current from indicated value

±10%

Maximum deviation of exposure time from indicated value

±10%

DEFINITION OF MEASUREMENT CRITERIA

Exposure time

The beginning and end points of the exposure time are defined at 70% of the peak radiation waveform measured with a calibrated x-ray monitor.

Peak tube potential

Is defined as the high voltage mean value measured with a calibrated non-invasive kVp meter.

Tube current

Is defined using the voltage over the feedback resistor measured with a calibrated multimeter. The mA value is calculated by dividing the voltage by the resistance value.

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Planmeca Intra x-ray unit 5

GENERAL & TECHNICAL DATA

The nominal x-ray voltage together with the highest x-ray tube current obtainable from the high-voltage generator when operated at it’s highest x- ray tube voltage

70 kV, 8 mA

The nominal x-ray tube current when operated at the highest x-ray tube voltage

8 mA, 70 kV

The x-ray tube voltage and tube current which result in the highest electric output power

70 kV, 8 mA

The nominal electric power for a load time of 0.1 sec and at the nominal x- ray tube voltage

1.4 kW at 70 kV, 8 mA

Anode heating/cooling curve of the X-ray tube

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GENERAL & TECHNICAL DATA

X-ray tube assembly heating/cooling curve

X-ray tube assembly heating/cooling curve

	140			18 W
	120
						13 W
	100
(kJ)	80
Storage
	60
Heat
	40
	20					Cooling
	0
	0	30	60	90	120	150	180	210	240	270	300
						Time (min)

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Planmeca Intra x-ray unit 7

GENERAL & TECHNICAL DATA

1.5EMC information

WARNING

Use of any accessories and cables other than those specified in Planmeca Intra X-ray unit’s documentation, with exception of cables sold by Planmeca as replacement parts for internal components, may result in increased emission or decreased immunity of the X-ray unit.

WARNING

Planmeca Intra X-ray unit should not be used adjacent to or stacked with other equipment. If adjacent or stacked use is necessary, the Planmeca Intra X-ray unit should be observed to verify normal operation in configuration which it will be used.

Guidance and manufacturer’s declaration - electromagnetic emissions

Planmeca Intra X-ray unit is intended for use in the electromagnetic environment specified below. The customer or the user of the Planmeca Intra X-ray unit should assure that it is used in such an environment.

Emissions test	Compliance	Electromagnetic environment – guidance
RF emissions		Planmeca Intra X-ray unit uses RF energy only
	Group 1	for its internal function. Therefore, its RF emis-
		sions are very low and are not likely to cause any
CISPR 11
		interference in nearby electronic equipment.
RF emissions		Planmeca Intra X-ray unit is suitable for use in all
	Class B	establishments, including domestic establish-
		ments and those directly connected to the public
CISPR 11
		low-voltage power supply network that supplies
Harmonic emissions		buildings used for domestic purposes.
	Class A
IEC 61000-3-2
Voltage fluctuations/
flicker emissions	Complies
IEC 61000-3-3

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GENERAL & TECHNICAL DATA

Guidance and manufacturer’s declaration - electromagnetic immunity

Planmeca Intra X-ray unit is intended for use in the electromagnetic environment specified below. The customer or the user of Planmeca Intra X-ray unit should assure that it is used in such an environment.

	Immunity test	IEC 60601	Compliance level	Electromagnetic environment-
		test level			guidance
	Electrostatic	±6 kV contact	±6 kV contact	Floors should be wood, concrete
	discharge (ESD)	±8 kV air	±8 kV air	or ceramic tile. If floors are cov-
				ered with synthetic material, the
	IEC 61000-4-2
				relative humidity should be at
				least 30%.
	Electrical fast	±2 kV for power	±2 kV for power	Mains power quality should be
	transient/burst	supply lines	supply lines	that of a typical commercial or
	IEC 61000-4-4	±1 kV for input/output	±1 kV for input/output	hospital environment
		lines	lines
	Surge	±1 kV line to line	±1 kV line to line	Mains power quality should be
	IEC 61000-4-5	±2 kV line to earth	±2 kV line to earth	that	of a typical commercial or
				hospital environment.
	Voltage dips, short	<5 % UT	<5 % UT	Mains power quality should be
	interruptions and	(>95 % dip in UT)	(>95 % dip in UT)	that of a typical commercial or
	voltage variations	for 0,5 cycle	for 0,5 cycle	hospital environment. If the user
	on power supply	40 % UT	40 % UT	of	Planmeca	Intra X-ray unit
	input lines			requires continued operation dur-
		(60 % dip in UT)	(60 % dip in UT)
	IEC 61000-4-11			ing power mains interruptions, it
		for 5 cycles	for 5 cycles
				is recommended that Planmeca
		70 % UT	70 % UT
				Intra X-ray unit be powered from
		(30 % dip in UT)	(30 % dip in UT)	an uninterruptible power supply.
		for 25 cycles	for 25 cycles
		<5 % UT	<5 % UT
		(>95 % dip in UT)	(>95 % dip in UT)
		for 5 s	for 5 s
	Power frequency(	3 A/m	3 A/m	Power frequency magnetic fields
	50/60 Hz)
				should be at levels characteristic
	magnetic field
				of a typical location in a typical
	IEC 61000-4-8
				commercial or hospital environ-
				ment. The power frequency mag-
				netic field should be measured in
				the	intended	installation location
				to assure that it is sufficiently low.

NOTE UT is the a.c. mains voltage prior to application of the test level.

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Planmeca Intra x-ray unit 9

GENERAL & TECHNICAL DATA

Guidance and manufacturer’s declaration - electromagnetic immunity

Planmeca Intra X-ray unit is intended for use in the electromagnetic environment specified below. The customer or the user of Planmeca Intra X-ray unit should assure that it is used in such an environment.

	Immunity test	IEC 60601	Compliance	Electromagnetic environment-
		test level	level	guidance

Portable and mobile RF communications equipment should be used no closer to any part of the Planmeca Intra X-ray unit, including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter.

			Recommended separation distance
Conducted RF	3 Vrms	3 Vrms	d = 1.2	P
IEC 61000-4-6 150 kHz to 80 MHz			d = 1.2	P	80 MHz to 800 MHz
Radiated RF	3 V/m	3 V/m	d = 2.3	P	800 MHz to 2.5 GHz
IEC 61000-4-3 80 MHz to 2.5 GHz			where P is the maximum output power rat-
			ing of the transmitter in watts (W) according
			to the transmitter manufacturer and d is the
			recommended	separation distance in
			metres (m).
			Field strengths from fixed RF transmitters,
			as determined by an electromagnetic site
			survey,a should be less than the compliance
			level in each frequency range.b
			Interference may occur in the vicinity of
			equipment marked with the following sym-
			bol:

NOTE 1: At 80 MHz and 800 MHz, the higher frequency range applies.

NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people.

aField strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which Planmeca Intra X-ray unit is used exceeds the

applicable RF compliance level above, Planmeca Intra X-ray unit should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as re-orienting or relocating Planmeca Intra X-ray unit.

bOver the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.

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GENERAL & TECHNICAL DATA

Recommended separation distances between

portable and mobile RF communications equipment and Planmeca Intra X-ray unit

Planmeca Intra X-ray unit is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of Planmeca Intra X-ray unit can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the Planmeca Intra X-ray unit as recommended below, according to the maximum output power of the communications equipment.

Separation distance according to frequency of transmitter Rated maximum output power m

of transmitter

	150 kHz to 80 MHz	80 MHz to 800 MHz	800 MHz to 2.5 GHz
W	d = 1.2 P	d = 1.2 P	d = 2.3 P
0.01	0.2	0.2	0.3
0.1	0.4	0.4	0.7
1	1.2	1.2	2.4
10	4.0	4.0	8.0
100	12.0	12.0	24.0

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Planmeca Intra x-ray unit 11

SERVICE MODE

2 SERVICE MODE

2.1Control panel

	Preprogrammed setting
	keys and indicator lights
	Adult/child selection key
	and indicator light
Exposure warning
indicator light	Ready indicator light
	Exposure key

kV display

Time display

Mode key

66 8

0.250

mA display

Select key

Parameter adjustment keys

2.2How to enter/exit the service mode

Press and hold down the select key for 4 seconds.

Press and hold down the Mode key for more than 2 seconds, until the four uppermost preprogrammed setting indicator lights come on.

To exit from the service mode

Press the Mode key briefly.

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SERVICE MODE

2.3X-ray tube filament preheating voltage calibration

Enter the service mode according to the instruction given in section 2.2 “How to enter/exit the service mode” on page 12.

Press and hold down the adult/child mode selection key for 2 seconds or until the indicator light starts to blink. The indicator lights will start to blink indicating that you are in the preheating voltage calibration mode.

Move as far away from the x-ray tube as the length of the cable from the control panel permits.

Press and hold the exposure key on the control panel until 16 exposures are performed (approx. 30 seconds).

Press the Mode key briefly to exit the service mode.

2.4kV range selection

Enter the service mode according to the instruction given in section 2.2 “How to enter/exit the service mode” on page 12.

Press the parameter adjustment up key until the parameter number 14 appears on the kV display.

14	Parameter adjustment up -key

The code of the kV range (0 - 9) is shown on the time display. The kV ranges are: 0 = 50-70, 0 1 = 55-70, 2 = 60-70, 3 = 66-70, 4 = 70, 5 = 50-68, 6 = 55-68, 7 = 60-68, 8 = 66-68 and 9 = 68

kV.

Press the Select key until the kV range code starts to blink, and the range can now be changed with the parameter adjustment keys.

Select key

Parameter adjustment keys

Accept the new kV range by pressing the Select key.

Press the Mode key briefly to exit the service mode.

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