Fluke TRACKER 90100 Operators Скачать руководство пользователя страница 50

Model 90100 

Operators Manual 

 

 
 

5-4

At the bottom of both screens, the Customization software displays the active keys and a short definition 
for each key.  

On the Display Customization screen, the serial number of the 35360A TRACKER Display, the firmware's 
version, and the current date appear.  The date of the last calibration appears in the bottom box.  This 
date changes to the current date if you make a change to any item. 

Finally, in the upper right corner, the status indicator for the RS-232 connection appears.  For normal 
operation, the status indicator should be two blocks connected by a line (

Û

⎯⎯⎯

Û

).  If the connection is 

severed, the status indicator will indicate so. 

F1 Help  (On-Line Help for using the Customization software) 

Press F1 to view the On-Line Help for the Customization software.  The text includes help on editing and 
printing. 

F2 Edit  (Item Editing) 

To edit any Item, place the cursor on it and press F2.  The Customization software enters Edit mode.  The 
Item is blanked and a blinking cursor appears to show the position of the next character.  Enter text or a 
value from the keyboard.  For Items that require a choice, use the up and down arrow keys or the space 
bar to change the Item. 

To exit Edit mode with the changes made to the Item, press Enter.  After you press Enter, the 
Customization software downloads the new information to the 35360A TRACKER Display.  In this 
manner, the Customization screens always reflects the information in the instrument.  When the download 
finishes, the Customization software displays the text, value, or choice it received back from the 
instrument.  If the returned information does not match the information sent down, an error message 
appears indicating a mismatch.  The Customization program retains the original text or value if this error 
occurs. 

To enter large or small values, use scientific notation.  The accepted format for this type of entry is 
x.xxxE+xxx.  For example, 1.234E+001 would be equivalent to 12.34; 1.234E-001 would be equivalent to 
.1234.  It is not necessary to specify all three exponent digits.  The program accepts an entry of "1e9" to 
represent 1,000,000,000. 

To exit Edit mode without change to the Item, press Escape.  The Item will appear in the Selection area 
as it did before you entered Edit mode. 

F6 Print  (Report Printing) 

Press F6 to print a report of the customization and calibration items (both screens).  The report is one 
page. 

F10 Exit 

Press F10 to exit the Customization software.  When the confirmation box appears, press "Y" to exit, 
press "N" to return to the Selection mode. 

PgDn  (Navigation) 

Press the Page Down key to move between the Display Customization Items and the Display Calibration 
Items screens. 

Содержание TRACKER 90100 Operators

Страница 1: ...Model 90100 TRACKER System Operators Manual May 2006 Manual No 37826 Rev 9 2006 Fluke Corporation All rights reserved Printed in U S A All product names are trademarks of their respective companies...

Страница 2: ...Fluke Biomedical Radiation Management Services 6045 Cochran Road Cleveland Ohio 44139 440 498 2564 www flukebiomedical com rms...

Страница 3: ...A Detector In The Beam 2 4 2 4 Operation Instructions 2 6 2 4 1 Front Panel Controls 2 6 2 4 2 Powering Up The Model 35360A Tracker Display 2 8 2 4 3 Powering Down The Model 35360A Tracker Display 2 8...

Страница 4: ...5 4 Absolute Dose Rate 3 6 3 5 5 Percent of Center 3 6 3 6 Basic Operating Quantities 3 7 Section 4 Maintenance and Service 4 1 4 1 Introduction 4 1 4 2 Troubleshooting 4 2 4 3 Line Fuse Replacement...

Страница 5: ...ir density corrections and displays the measurement results on the 4 line by 20 character vacuum fluorescent display VFD directly in the user s choice of radiological units An integrated rechargeable...

Страница 6: ...provide worldwide operation by use of the proper line cord The levels of the internal 300 V electronic bias supply and the rechargeable battery supply are continuously monitored Annunciators appear o...

Страница 7: ...surement of radiation output knowledgeable about safety procedures observed when working with radiation sources such as therapy radiation machines aware of safety precautions required to avoid possibl...

Страница 8: ...lsed 99 9 at 500 rads min continuous Leakage Less than 0 5 pA over the full operating temperature range Ion Chamber Factory Calibration Method Each of the 5 ion chambers within the detector array is c...

Страница 9: ...when the input current or charge have exceeded the full scale values The full scale value of any unit is guaranteed not to differ from nominal values by more than 2 Long Term Stability Expected to be...

Страница 10: ...an 0 5 pA over the full operating temperature range Connector Type Display interface end has five AMP male coaxial connectors and three AMP male single conductor connectors housed in a single DB 37 ty...

Страница 11: ...o Display Interface Cable Build Up Kit 37825 Contains 10 pieces of 0 44 cm acrylic part number 37051 1 Kits containing other quantities of plates plate materials and plate thicknesses are available Pe...

Страница 12: ...Model 90100 Operators Manual Blank page...

Страница 13: ...ngs for securing the plates to the 35300A Detector are optional with the 90100 TRACKER System See Appendix A for additional information It is recommended that the user customize his Model 35360A TRACK...

Страница 14: ...s or less of operation remains When the battery pack is fully discharged the instrument automatically shuts off and will not operate until AC line power is connected The Model 35360A TRACKER Display o...

Страница 15: ...ction until tight Figure 2 2 Connecting the Interface Cable to the Model 35360A TRACKER Display Figure 2 3 Connecting the Interface Cable to the Model 35300A Detector D ET ECTO R INP UT 100 240V 50 60...

Страница 16: ...tion program during the user customization process 2 3 Positioning the Model 35300A Detector in the Beam Proper and consistent positioning of the 35300A Detector is necessary for reliable measurement...

Страница 17: ...or gantry angles of 90 or 270 degrees place the 35300A Detector on its side so the label faces the head Orient the connector away from the gantry This placement is shown in Figure 2 5 Operating the 35...

Страница 18: ...s shown here correspond to a particular customization set up Other customization set ups will produce different results 2 4 1 Front Panel Controls Figure 2 6 shows the front panel of the 35360A TRACKE...

Страница 19: ...Factor FPGF fields Measure Select The MEASURE SELECT button displays the Measurement screen Subsequent presses toggle the display mode between absolute and percentage presentations Reset The RESET but...

Страница 20: ...an additional two seconds the display will change to the Bias and Battery Voltage Test Screen shown in Figure 2 10 As soon as this screen is displayed the 35360A TRACKER Display is fully operational a...

Страница 21: ...its full charge the charging circuit switches to trickle charge mode with a corresponding terminal voltage of approximately 7 volts The unit will remain in this trickle charge mode as long as the ins...

Страница 22: ...Figure 2 12 The Air Density Screen With Air Density Corrections Enabled To disable the air density correction advance the X cursor to the ADC annunciator at the upper left of the VFD With the X cursor...

Страница 23: ...present the measurement data in an absolute form or as a percentage of the center ion chamber While the Measurement screen is displayed press the MEASURE SELECT button to toggle the display mode betw...

Страница 24: ...nd the four peripheral ion chamber s readings as a percentage of the center ion chamber s reading top center x 100 left center x 100 right center x 100 bottom center x 100 center units Figure 2 19 A P...

Страница 25: ...rrange Conditions Measurement Mode Condition Chamber Reading Absolute Overrange a chamber OVER for chamber Percent of Center Exposure at center chamber too small to calculate percentages UNDER for all...

Страница 26: ...before an FPGF can be changed To enter or exit the Gain Setting Mode press and hold the GAIN SELECT button for approximately three seconds Entry into the Gain Setting Mode is indicated by a movement...

Страница 27: ...increment or decrement the selected chamber s FPGF For example increasing the left percentage value by 2 will increase the left FPGF by 2 When the measurement values are displayed in the percent of ce...

Страница 28: ...Model 90100 Operators Manual Blank page...

Страница 29: ...Functional Description of the Model 35360A TRACKER Display The 35360A TRACKER Display contains a five channel electrometer capable of producing measurements of dose and dose rate Its 4 line by 20 char...

Страница 30: ...maintain the Battery Pack at its fully charged condition indefinitely When operating from batteries an automatic turn off feature may be used to power down the unit after a user defined period of ina...

Страница 31: ...g all of the executable code firmware The revision date associated with this code is displayed during the power up sequence on the VFD Also contained within the Processor block is 32 KBytes of RAM mem...

Страница 32: ...2 8 Multiplexer and A D Converter This block consists of an six channel analog multiplexer and 16 bit A D Converter which operates under the direct control of the microcontroller Its main function is...

Страница 33: ...absorption takes place in the chamber s windows and build up materials when the incident photons or primary electrons interact with the atoms of these materials When absorption occurs high speed elect...

Страница 34: ...60A TRACKER Display it is an intermediate result upon which the dose value directly depends nC count QG counts ADZ counts ADC nC Q 3 5 2 Current Although current is not a value which can be displayed...

Страница 35: ...ain of the electrometer A D combination when measuring in the dose mode Charge gain values are field programmable via Customization Software IG Current Gain nC Min Count Overall electrical current gai...

Страница 36: ...Model 90100 Operators Manual Blank page...

Страница 37: ...ounding type line cord such as the one supplied with the 90100 TRACKER System In addition only connect the 35360A TRACKER Display to an AC power outlet employing a third wire safety ground 4 1 Introdu...

Страница 38: ...360A TRACKER Display s VFD does not illuminate when POWER key is pressed See Figure 4 1 Low Battery annunciator is displayed on the 35360A TRACKER Display s VFD See Figure 4 2 Bias error annunciator i...

Страница 39: ...ating from AC power source When attempting to turn the instrument on firmly press the POWER key and hold for approximately one second Always allow several seconds between retries NOTE When powering th...

Страница 40: ...source and press the POWER key Low Battery annuciator is displayed on 35360A TRACKER Display s VFD Operating from AC power source When powering the 35360A TRACKER Display from an AC line always use a...

Страница 41: ...play s VFD Bias error annuciator displayed 35360A TRACKER Display Reconnect interface cable to the 35360A TRACKER Display without the 35300A Detector and recheck VFD for bias Bias error annuciator dis...

Страница 42: ...es exhibits a drift rate of greater than two counts per minute in the absence of radiation Clean interface cable connectors via procudure given later in this section and recheck dose drift Excessive d...

Страница 43: ...n to within one count of zero in the absence of radiation Dose measurement leakage drift greater than 2 counts per minute The problem appears to be caused by current leakage in one or more measurement...

Страница 44: ...g fuses Use only the recommended fuse type The use of a higher current rating than specified above may cause damage to the instrument which will void any or all warranties currently in effect 4 Place...

Страница 45: ...dry air is available where camera accessories are sold They are intended for use in cleaning fine and delicate camera equipment If this cleaning method fails to produce satisfactory results then servi...

Страница 46: ...ce Cable 37783 30 Customization Kit 37827 DB 9 Female Wiring 37616 7 Ft RJ 45 Cable L COM 105 260 Customization Software Disk 38330 Build Up Plate 37051 Pegs and Retainer Kit 37825 Pegs 37081 Retainer...

Страница 47: ...the electrometer gains and zeros and the ion chamber calibration factors may be changed The basic features of the Customization software are its ease of use an on line help facility printer support a...

Страница 48: ...tion software Place the working disk into the floppy drive If you wish to operate the Customization software from the hard drive copy all of the files from the working disk to a directory on the hard...

Страница 49: ...Help F2 Edit F6 Print F10 Exit Down PgDn Calibration It Up The power down interval specifies the b f minutes the Dosimeter remains powered d i periods of inactivity Enter 0 to disable th Automatic Pow...

Страница 50: ...to the Item press Enter After you press Enter the Customization software downloads the new information to the 35360A TRACKER Display In this manner the Customization screens always reflects the inform...

Страница 51: ...millibars and hectoPascals Optional Message Text entered for this Item will appear on the bottom line of the 35360A TRACKER Display s Test screen The Item is limited to a maximum of 20 characters Ion...

Страница 52: ...ITEMS Charge Gain QG The 35360A TRACKER Display uses the Charge Gain to convert the number from the analog to digital converter to charge The Charge Gain must be in units of nanocoulombs per count Cur...

Страница 53: ...cond row 3 Repeat Steps 1 and 2 if the value displayed on the 35360A TRACKER Display is not zero ELECTROMETER GAINS The procedure for setting the electrometer gains differs for current and charge For...

Страница 54: ...play CHANGING THE PRESSURE UNITS 1 Place the cursor on the Pressure Units Item 2 Press F2 The function key area indicates the keys used to make a choice 3 Press the spacebar or use the up and down arr...

Страница 55: ...7 Press F2 8 Enter the original value and press Enter 9 The software restores the original value in the instrument CHANGING THE CURRENT GAIN This example changes the current value of a factory set cur...

Страница 56: ...munications between the computer and the instrument is faulty Generally the icon in the upper right corner indicates the status of the RS 232 connection The following errors indicate problems during a...

Страница 57: ...Detector are also available as optional accessories see Figure A 1 The build up pegs a set of eight screw into threaded holes in the 35300A Detector four build up pegs can be installed on each side of...

Страница 58: ...s not require any added build up Table A 1 Recommended Amount of Build up to Use With the Model 35300A Detector to Attain Photons dmax for Linear Accelerators Nominal Accelerator Potential MeV Number...

Страница 59: ...0 5 4 1 0 5 5 2 1 0 6 2 1 0 7 3 1 5 8 3 1 5 9 4 2 0 10 5 2 0 11 5 2 5 12 6 3 0 13 6 3 0 14 7 3 5 15 7 3 5 16 8 4 0 17 8 4 0 18 9 4 5 19 10 4 5 20 10 5 0 21 11 5 5 22 11 5 5 23 12 6 0 24 12 6 0 25 13 6...

Страница 60: ...Fluke Biomedical Radiation Management Services 6045 Cochran Road Cleveland Ohio 44139 440 498 2564 www flukebiomedical com rms...

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