User Manual Shutter (T6801) and filter wheel (L981054) D780.131.0/0 2004-11 Sa
General Information General Information The product bears the CE-mark "CE" in accordance with the Council Directive 98/37/EC (Machinery) and Council Directive 89/336/EEC (EMC-Directive). The user manual is an integral part of the product. It should always be kept near the product. Observance of the manual is a prerequisite for proper product performance and correct operation. Operator safety, specified measuring accuracy and interference-free operation can be guaranteed only if original products and parts are used. Furthermore only the accessories listed in this manual are approved by PTW-Freiburg and may be used in conjunction with the product, or else accessories whose use has been expressly permitted by PTW-Freiburg. Safe operation and proper product performance are not guaranteed if accessories or consumables from other manufacturers are used. This manual is in conformity with the product specifications and all applicable safety standards valid at printing date. All rights are reserved for devices, circuits, techniques, software and names referred to in the manual. Electromagnetic immunity: The product fully complies with the electromagnetic immunity requirements of standard IEC 61326 ` Electrical equipment for measurement, control and laboratory use - EMC requirements`. The device is radio suppressed according to CISPR11/DIN EN 55011 class B. No part of the technical documentation may be reproduced without written permission from PTW-Freiburg. PTW-Freiburg works in strict accordance with a quality management system which is continuously updated according to national and international standards. PTW-Freiburg cannot be held liable for damages resulting from the use of accessories, consumables from other manufacturers or when the user ignores the instructions and information given in this manual. The warranty period is 1 (one) year and begins on the day of delivery. It is unaffected by repairs covered by the warranty regulations. PTW-Freiburg considers itself responsible for safety, reliability and performance of the product only, if assembly, extension, readjustment, modification or repair is carried out by PTW-Freiburg or by persons authorized by PTW-Freiburg, and if the product is used in compliance with the technical documentation. PTW-FREIBURG Physikalisch-Technische Werkstätten Dr. Pychlau GmbH Lörracher Str. 7 79115 FREIBURG GERMANY Phone: +49 761 49055-0 Fax: +49 761 49055-70 info@ptw.de www.ptw.de 2 D780.131.0/0
Contents Contents 1 INTENDED PURPOSE 4 2 FOR YOUR SAFETY 5 3 EQUIPMENT DESCRIPTION 7 3.1 Shutter with control unit 7 3.2 Filter Wheel with Control Unit 9 3.3 Control Panel 10 4 INITIAL OPERATION STARTUP 12 4.1 Setting up the equipment 12 4.2 Connecting and switching on the equipment 12 5 OPERATING THE EQUIPMENT 14 5.1 Shutter 14 5.2 Filter wheel 14 6 ALIGNING THE SHUTTER 15 7 CLEANING, MAINTENANCE, DISPOSAL 16 7.1 Cleaning 16 7.2 Preventive Maintenance 16 7.3 Disposal of the Product 16 7.4 Fuses 16 8 TECHNICAL SPECIFICATIONS 17 9 ORDER INFORMATION 18 LITERATURE 19 ILLUSTRATIONS 19 INDEX 20 D780.131.0/0 3
Intended Purpose 1 Intended Purpose Figure 1: General layout of a calibration system The shutter T6801 and the filter wheel L981054 are accessories for calibration systems for calibrating ionization chambers and detectors. The shutter serves for fading the X-ray beam in and out. The filter wheel has eight different filters for generating different beam qualities with remotecontrolled filter change. The individual filters and the complete wheel are interchangeable. 4 D780.131.0/0
2 For Your Safety Shutter (T6801) and filter wheel (L981054) For Your Safety The following safety statements are divided into DANGER, WARNING, CAUTION and NOTE. Definitions DANGER Indicates an imminent hazard. If not avoided, the hazard will result in death or serious injury. Safety Information DANGER Explosion Hazard The product is not suitable for operation in areas of risk where an explosion hazard may occur. Furthermore the product is not suitable for application in oxygen-enriched atmospheres. WARNING Indicates a hazard. If not avoided, the hazard can result death or serious injury. CAUTION Indicates a potential hazard. If not avoided, the hazard could result in minor injury or product / property damage. NOTE Provides useful information to assure that you get the most from your equipment. WARNING Shock Hazard Strictly observe the following warnings. Failure to do so may endanger the lives of the patient, the user and other persons involved. Before using the product, the operator must ascertain that it is in correct working order and operating condition. Before putting the device into operation, visually inspect all connection cables for signs of damage. Damaged cables and connectors must be replaced immediately. When disconnecting the device from the power line, first remove the plug from the wall outlet, then disconnect the power cord from the device. Devices on which moisture condensation has developed as a result of temperature changes must not be switched on unless completely dry. Liquids must not enter the device. If liquids have entered the device, it must be thoroughly inspected before being used again. The product is a device of protection class I. It may be put into operation only when connected to a properly installed power outlet with earthing contact. Extension cords must not be used. D780.131.0/0 5
For Your Safety WARNING Suffocation Hazard Dispose of the packaging material, observing the applicable wastecontrol regulations. Keep the packaging material out of children's reach. Risk of Poisoning Chemicals required for application or maintenance of the device, for instance, must under all circumstances be stored, prepared, and kept at hand in their specific containers. Failure to observe this instruction may result in severe consequences for the patient. WARNING NOTE Please observe the user manuals of all connected devices! NOTE Set up the device so that the operator has a clear, unobstructed view of the control panel. NOTE This symbol means: Refer to user manual. If damages or malfunctions are identified, the device must be repaired before it is used again. CAUTION Equipment damage - Before connecting the device to the power line, make sure that line voltage and frequency are equivalent to the ratings indicated on the nameplate of the device. Equipment damage - Set up the device in a location which affords sufficient ventilation. Equipment damage - Always observe the ambient conditions as indicated in the `Technical Specifications`. 6 D780.131.0/0
3 Equipment Description Shutter (T6801) and filter wheel (L981054) Equipment Description 1 2 3 4 3.1 Shutter with control unit Figure 3: Shutter The shutter is equipped with a correction magnet, which compensates for deviations in the angle of rotation. The correction magnet can be switched on or off on the shutter control unit (see Figure 4, Item 2) Figure 2: X-ray source table with shutter and filter wheel (without shielding plates) 1 X-ray source table 2 X-ray tube 3 Shutter 4 Filter wheel The complete system is composed of: X-ray source table L981053 with: Brackets for the x-ray tube Diaphragms and their brackets Bracket for the dose monitor (optional) Filter wheel L981054 including: Control unit Control panel All connection cables Additional filter wheels (optional) Shutter T6801 including: Control unit All connection cables D780.131.0/0 7
Equipment Description 1 2 3 4 5 6 7 8 Figure 4: Front side of the shutter control unit 1 Button for starting the rotational movement of the shutter 2 Correction switch with 3 positions: OFF: Position for setting the rotation or brake speed (correction magnet switched off) CAL 90 : Position for setting the rotationalangle (correction magnet switched off) ON: Correction magnet switched on 3 Potentiometer for setting the rotation or brake speed 4 Potentiometer for setting the rotational angle 5 Connection socket for the control cable to the control panel and to the shutter 6 Connection socket for the power supply cable to the shutter 7 Green signal lamp: Equipment switched on 8 Fuse for power supply (6.3 A slow-blow fuse) with signal lamp 1 2 3 4 Figure 5: Back of shutter control unit 1 Mains fuses 2 Mains voltage supply 3 On/off switch 4 Type plate 8 D780.131.0/0
Equipment Description 3.2 Filter Wheel with Control Unit Figure 6: Filter wheel 1 2 3 4 Figure 7: Front side of the filter wheel control unit 1 Connection socket for the control cable to the control panel and to the filter wheel 2 Connection socket for the power supply cable to the filter wheel 3 Green signal lamp: Equipment switched on 4 Potentiometer for setting the rotation or brake speed D780.131.0/0 9
Equipment Description 1 2 3 4 Figure 8: Back of the filter wheel control unit 1 Mains fuses 2 Mains voltage supply 3 On/off switch 4 Type plate 3.3 Control Panel 1 2 Figure 9: Operating side of the control panel 1 8 illuminated control push-buttons for selecting the appropriate filter position on the filter wheel 2 2 illuminated control push-buttons opening or closing the shutter 10 D780.131.0/0
Equipment Description 1 2 3 4 Figure 10: Connection side of the control panel 1 Connection socket for monitor (optional) 2 Connection socket for the control cable to the shutter 3 Connection socket for the control cable to the filter wheel D780.131.0/0 11
4 Initial Operation Startup Shutter (T6801) and filter wheel (L981054) Initial Operation Startup NOTE The shutter and the filter wheel should only be installed by PTW staff or appropriately trained persons. The following instructions are not complete, but instead only provide an overview of the required installation steps for the shutter and filter wheel. Align the X-ray source table with the calibration bench. Level the X-ray source table using the adjustable base (setting range ± 25 mm). Place the control equipment of the shutters and the filter wheels on the tabletop of the X-ray source table. 4.1 Setting up the equipment Set up the X-ray source table at the place of use. Mount the shutter and filter wheel on the X-ray source table if applicable. 4.2 Connecting and switching on the equipment shutter filter wheel control cable T3502/K604 power supply cable T3502/K603 signal lamp (optional) control cable T3502/K602 filter wheel control unit EXIT MOTOR shutter control unit EXIT MOTOR power supply cable monitor (optional) control panel (connection side) Figure 11: Connecting the equipment * Power supply cable is connected fixed to the shutter 12 D780.131.0/0
Initial Operation Startup Connect all cables appropriately using the prefabricated cables supplied Figure 11. Plug the power supply cable of the shutter into the shutter control unit. CAUTION Equipment damage The power supply cable of the shutters may only be plugged into this after the control unit is switched on to prevent uncontrolled rotations of the shutter. Connect the mains cable to the control units and connect them with the mains power. CAUTION Equipment damage Before connecting the control units, check whether the mains voltage and mains frequency stated on the type plate match the values of the supply mains. Switch the two control units on using the main switches on the back sides (see Figure 5 and Figure 8). NOTE PTW-Freiburg recommends leaving the shutter control unit always switched on (including nights). If the equipment must be switched off, you must remove the power supply cable from the shutter control unit before switching it back on, because otherwise the shutter roller can be moved to an undefined position. After it is switched on, the equipment requires a warming-up time of 30 minutes. Set the CORRECT switch to the ON position (to the right). Turn the shutter roller manually to the Shutter open" position. D780.131.0/0 13
5 Operating the Equipment Shutter (T6801) and filter wheel (L981054) Operating the Equipment 5.1 Shutter The shutter is normally operated from the control panel, OPEN and SHUT buttons, but can also be operated via the shutter control unit (START button). NOTE For the shutter to function correctly, the CORRECT switch must be set to ON on the control unit during normal operation. The time between two activations of the shutter should not be shorter than two seconds, because otherwise the shutter can move to an undefined position. Control Panel The illuminated control push-buttons, OPEN for opening and SHUT for closing the shutter, are on the control panel. The shutter setting is displayed by lighting of the corresponding button. The button not lit can be pressed. Shutter Control Unit The shutter is opened or closed on the shutter control unit using the START button. This button is switched parallel to the OPEN and SHUT buttons on the control panel. When you press the START button, the shutter roller rotates by 90. You do not receive confirmation of the shutter setting on the shutter control unit. If you require confirmation, a signal lamp can be connected to the existing terminal (see Figure 11). 5.2 Filter wheel The filter wheel can only be operated from the control unit. There are eight buttons on the control unit, to each of which a specific position on the filter wheel is assigned. When you press a button, the filter wheel is rotated to the corresponding position and the associated button lights. The Shutter closed position is monitored, i.e., the lamp SHUT lights when the shutter is closed correctly. The shutter roller is in an undefined position if the OPEN button lights continually after you press the SHUT button several times, i.e., the shutter is still partially open. Put the shutter roller back into the correct position by pressing the SHUT button several times in short intervals (< 2 sec) or manual turning of the shutter roller. 14 D780.131.0/0
6 Aligning the Shutter Shutter (T6801) and filter wheel (L981054) Aligning the Shutter The shutter is aligned at PTW-Freiburg before it is supplied and does normally not require any other setting. If components age or are replaced, realignment might become necessary. NOTE The shutter mechanics must be aligned from the shutter control unit and not from the control panel. PTW-Freiburg recommends labeling the settings Shutter open and Shutter closed with white markings (e.g., paper stickers). Requirements Good visibility of shutter mechanics; remove the shielding plates if necessary. The warm-up time of 30 minutes should be maintained (if the system is not kept continually switched on) Alignment (see Figure 4) Set the rotation and brake speed using the potentiometer ROTATION in such a way that the shutter roller is braked quickly, but does not kick back. Set the CORRECT switch to the CAL 90 setting (middle). Set the potentiometer 90 in such a way, so that one rotational movement equals approx. 90. It might be necessary to correct the rotation and brake speed again using the potentiometer ROTATION. In this switch setting, the correction magnet is switched off, so that the deviations of 90 are added together when you press the START button several times. Set the CORRECT switch to the ON setting (to the right). When you press the START button, the shutter roller must make correct 90 rotations. Compensation is then made for small deviations by the correction magnet. Set the CORRECT switch to the OFF setting (to the left). When you press the START button, the shutter roller rotates in small steps. D780.131.0/0 15
7 Cleaning, Maintenance, Disposal Shutter (T6801) and filter wheel (L981054) Cleaning, Maintenance, Disposal 7.1 Cleaning Surface and connection cables First of all, disconnect the device from the power line, before attempting to clean. Rub the devices down with a moist cloth; no liquid must enter the devices. Clean the cables as follows: Disconnect the cables from the devices, pulling on the plug, not on the cable. For cleaning, rub the cables down with a cloth moistened with soap water. Never immerse the cable in liquid! 7.2 Preventive Maintenance Check before each use Before each use, visually inspect the device and the cables for signs of mechanical damage If damages or malfunctions are identified, the device must be repaired before it is used again. Shutter and filter wheel do not require any other, regular maintenance measures. 7.3 Disposal of the Product At the end of the product life the components must be disposed of in compliance with the applicable waste control regulations. The different materials must be separated and recycled as appropriate. Shutter and filter wheel contain components of lead. These components must be recycled according to local regulations. The electronic components must be recycled according to local regulations. The cost for an eventual return at the end of the product life time is to be borne by the customer. 7.4 Fuses The shutter control unit uses 2 mains fuses (refer to Technical Specifications) which are accessible from the rear of the device. In addition a fuse (6.3 A, slow-blow) for power supply is used which is accessible from the front side. The filter wheel control unit uses 2 mains fuses (refer to Technical Specifications) which are accessible from the rear of the device. Before replacing the fuses, turn off the devices and disconnect them from the power line. 16 D780.131.0/0
8 Technical Specifications Shutter (T6801) and filter wheel (L981054) Technical Specifications Only values for which tolerances or limits are specified are guaranteed. Values for which no tolerances are specified are for information only. Shutter Designation Manufacturer Intended Use Energy Lead thickness of the shutter roller Diameter of the shutter roller Opening and closing time of the shutter roller Power Mains fuses Fuse for power supply Dimensions Shutter mechanics Shutter control unit Weight Shutter mechanics Shutter control unit Shutter T6801 PTW-Freiburg Fading in and out the X-ray beam at calibration systems X-ray beams up to 300 kv 7.5 mm 103 mm < 100 ms 115 V / 230 V, (50... 60) Hz 2 x 2 A slow-blow at 230 V 2 x 4 A slow-blow at 115V 6.3 A slow-blow 281 mm x 468 mm x 130 mm 145 mm x 255 mm x 262 mm 15.0 kg 7.4 kg Filter wheel Designation Manufacturer Intended Use Outer diameter of the filter Power Mains fuses Dimensions Filter wheel Filter wheel control unit Control panel Weight Filter wheel (without filters) Filter wheel control unit Control panel Filter wheel L981054 PTW-Freiburg Generation of different beam qualities 91.8 mm 115 V / 230 V, (50... 60) Hz 2 x 1 A slow-blow at 230 V 2 x 2 A slow-blow at 115V 440 mm x 420 mm x 250 mm 145 mm x 255 mm x 262 mm 100 mm x 220 mm x 180 mm 8.9 kg 4.6 kg 1.0 kg D780.131.0/0 17
Order Information General Environmental conditions Ambient temperature Relative humidity Atmospheric pressure (+10... +40) C (10... 75) % relative humidity; not exceeding 20 g/m³ (600...1200) hpa 9 Order Information X-ray shutter cylinder shutter for X-rays up to 300 kv, includes control unit with Open/Close control buttons Filter device, remote control wheel with 8 positions for filters. Remotely controlled. Incl. control unit and connection cable. Filters are not included. consisting of: Filter wheel Control unit Control panel Control cable filter wheel Power supply cable filter wheel Filter device, separate device filter wheel with 8 positions for filters. Filters are not included Pb 99.95 filter outer diameter 91.8 mm, different thickness available Al 99.9 Filter outer diameter 91.8 mm, different thickness available Cu 99.9 Filter outer diameter 91.8 mm, different thickness available Sn 99.9 Filter outer diameter 91.8 mm, different thickness available X-ray tube support, 100 cm height, incl. supports for an X-ray tube for up to 420 kv, diaphragms, dose monitor, 8 mm lead-equivalent shielding and 8 diaphragms. Consists of machined Al bricks, incl. adjustable Al feet. Control cable shutter Set of mains fuses 1 A slow-blow Set of mains fuses 2 A slow-blow Set of mains fuses 4 A slow-blow Set of fuses for power supply 6.3 A slow-blow T6801 L981054 T3502/SL3 T3502/U800 T3502/SL5 T3502/K602 T3502/K603 L981055 TP3502/302 TA3502/302-x TC3502/302-x TS3502/302-x L981053 T3502/K604 2 x L251004 2 x L251013 2 x L251008 L251010 18 D780.131.0/0
Literature Literature Illustrations [1] Directive 98/37/EC of the European Parliament and of the Council on the approximation of the laws of the Member States relating to machinery [2] IEC 61326 Electrical equipment for measurement, control and laboratory use - EMC requirements [3] IEC/CISPR 11: 1997, modified Industrial, scientific and medical (ISM) radio-frequency equipment -Radio disturbance characteristics - Limits and methods of measurement. Figure 1: General layout of a calibration system 4 Figure 2: X-ray source table with shutter and filter wheel (without shielding plates) 7 Figure 3: Shutter 7 Figure 4: Front side of the shutter control unit 8 Figure 5: Back of shutter control unit 8 Figure 6: Filter wheel 9 Figure 7: Front side of the filter wheel control unit 9 Figure 8: Back of the filter wheel control unit 10 Figure 9: Operating side of the control panel 10 Figure 10: Connection side of the control panel 11 Figure 11: Connecting the equipment 12 [4] IEC 61010-1 Safety requirements for electrical equipment for measurement, control and laboratory use; Part 1: General requirement D780.131.0/0 19
Index Index C Cleaning 16 Connecting the equipment 12 Control panel 10 CORRECT switch 8, 13, 14, 15 D Disposal 16 E Equipment description 7 F Filter wheel Control unit 9 Description 9 Operation 14 Fuses 8, 10, 16 G General information 2 General layout of a calibration system 4 I Initial operation startup 12 Intended purpose 4 L Literature 19 M Mains voltage supply 8, 10 Maintenance 16 O On/off switch 8, 10 Order information 18 P Potentiometer 90 8, 15 Potentiometer ROTATION 8, 15 S Safety information 5 Setting up the equipment 12 Shutter Alignment 15 Control unit 8 Description 7 Operation 14 START button 8, 15 Switching on the equipment 13 T Technical specifications 17 20 D780.131.0/0