capintec crc-25w manual

capintec crc-25w manual

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capintec crc-25w manual

To get more targeted content, please make full-text search by clicking here.CHOOSE NUCLIDE Tc99m In111 Ga67 F 18 I 123 I 131 Xe133 Tl201 Figure 6-64 Remote Choose Nuclide Screen Remove Nuclides To remove a Remote nuclide, at Figure 6-64 Remote Choose Nuclide Screen, select the nuclide via the Pre-Set Nuclide keys, USER keys or NUCL key. Figure 6-64 Remote Choose Nuclide Screen will re-appear without the selected nuclide. April 16 CHAMBER INITIALIZATION 6-35 CAPINTEC, INC. Figure 6-1 Other Menu will re-appear. Adding Nuclides A maximum of 8 nuclides can be set for Remote Displays. If all locations are used, one or more nuclides must be removed before any more can be added. At Figure 6-64 Remote Choose Nuclide Screen, select nuclides via the Pre-Set Nuclide keys, USER keys or NUCL key. The name of each nuclide will be displayed as it is selected. When all desired nuclides are selected, press ENTER. USB PORT SETTINGS Two selections are provided for adjusting the USB port settings when connecting the Calibrator to a Nuclear Management software system. They are USB Timeout and USB Protocol. By default, the USB Timeout is “disabled” and the USB Protocol is “Legacy”. The defaults will work with Capintec’s Communications software. These settings may need to be changed if the Calibrator is connected to some other Nuclear Management software system. Please contact Capintec, Inc.To access these functions, press WELL from the Chamber Measurement screen to proceed to Well Counter Mode. Note: If Background has not been measured for the current day, the Background Instruction Screen will appear. Press the MENU key. After MENU is pressed, the ENTER PASSWORD screen will appear. Input the password (last 3 digits of the readout serial number) and press ENTER. Figure 7-2 Well Setup Menu will appear. Press MENU from the Well Measurement Screen. Figure 7-1 Well Main Menu will appear. Input your password (last 3 digits of the readout serial number) and press ENTER.
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Figure 7-2 Well Setup Menu will appear. 1. Nuclides 2. Test Source 3. Trig. Level 4. Efficiencies 5. User Keys 6. Reset HV Figure 7-2 Well Setup Menu NUCLIDE SELECTION The nuclide(s) to be identified in Wipe Tests must be selected. Select SETUP. Input your password (last 3 digits of the readout serial number) and press ENTER. Select WIPE from Figure 7-3 Wipe Nuclide Menu. Figure 7-4 Wipe Choose Nuclide Screen will appear. WIPE CHOOSE NUCLIDE Figure 7-4 Wipe Choose Nuclide Screen Add Nuclides Select nuclides via the Pre-Set Nuclide keys, USER keys or NUCL key. Note: Efficiency data must be entered for nuclides to be added. (Reference this chapter, SECTION: EFFICIENCY DATA) WIPE CHOOSE NUCLIDE Tc99m In111 Ga67 I 123 I 131 July 16 Figure 7-5 Wipe Choose Nuclide Screen with selected nuclides 7-3 WELL COUNTER INITIALIZATION CAPINTEC, INC. Figure 7-3 Wipe Nuclide Menu will re- appear. Remove Nuclides To remove a Wipe Nuclide from the list, at Figure 7-5 Wipe Choose Nuclide Screen with selected nuclides, select the nuclide via the Pre-Set Nuclide keys, USER keys or NUCL key. Figure 7-6 Wipe Delete Nuclide Screen will appear: WIPE CHOOSE NUCLIDE Already On List Delete. Y or N Figure 7-6 Wipe Delete Nuclide Screen Press YES to delete the selected nuclide from the Wipe Nuclide list. Figure 7-5 Wipe Choose Nuclide Screen with selected nuclides will re-appear without the selected nuclide. When all changes are complete, press ENTER. Unrestricted Areas Up to 10 nuclides may be selected for the Unrestricted Areas Select UNRESTRICTED from Figure 7-3 Wipe Nuclide Menu. Figure 7-7 Unrestricted Choose Nuclide Screen will appear. UNRESTRICTED CHOOSE NUCLIDE Figure 7-7 Unrestricted Choose Nuclide Screen 7-4 WELL COUNTER INITIALIZATION July 16 CAPINTEC, INC. Note: Efficiency data must be entered for nuclides to be added.
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(Reference this chapter, SECTION: EFFICIENCY DATA) UNRESTRICTED CHOOSE NUCLIDE Tc99m In111 Ga67 I 123 I 131 Figure 7-8 Unrestricted Choose Nuclide Screen with selected nuclides When all changes are complete, press ENTER. Remove Nuclides To remove an Unrestricted Nuclide from the list, at Figure 7-7 Unrestricted Choose Nuclide Screen, select the nuclide via the Pre-Set Nuclide keys, USER keys or NUCL key. Figure 7-9 Unrestricted Delete Nuclide Screen will appear: UNRESTRICTED CHOOSE NUCLIDE Already On List Delete. Y or N Figure 7-9 Unrestricted Delete Nuclide Screen Press YES to delete the selected nuclide from the Unrestricted Nuclide list. Figure 7-8 Unrestricted Choose Nuclide Screen with selected nuclides will re-appear without the selected nuclide. July 16 WELL COUNTER INITIALIZATION 7-5 CAPINTEC, INC. They are designated S-01 to S-99. Select SEALED SOURCE from Figure 7-3 Wipe Nuclide Menu. Figure 7-10 Sealed Source Choose Nuclide Screen will appear. S-01 CHOOSE NUCLIDE Figure 7-10 Sealed Source Choose Nuclide Screen Select nuclides via the Pre-Set Nuclide keys, USER keys or NUCL key. The name of the nuclide will be displayed as shown in Figure 7-11 Sealed Source Choose Nuclide Screen with selected nuclide. Note: Efficiency data must be entered for nuclides to be added. (Reference this chapter, SECTION: EFFICIENCY DATA) S-01 Tc99m CHOOSE NUCLIDE Figure 7-11 Sealed Source Choose Nuclide Screen with selected nuclide Press ENTER to accept the nuclide. The Sealed Source Choose Nuclide Screen for the next Sealed Source will be displayed When all sealed sources have been entered, press MENU to accept the changes and return to Figure 7-3 Wipe Nuclide Menu. To cancel the changes and return to the Wipe Measurement screen, press HOME. 7-6 WELL COUNTER INITIALIZATION July 16 CAPINTEC, INC. Before performing Auto Cal, Test Source Data must be input. The source may be Cs137 or Ba133. Select TEST SOURCE.

Source Verification If a Well Counter Test Source has been previously input, the data for the source will be displayed for verification as shown in Figure 7-12 Test Source Verification. (Cs137 is used in the example.) If a Well Counter Test Source has not been previously input, Figure 7-13 Well Test Source Nuclide Selection screen will appear. Figure 7-2 Well Setup Menu will re-appear. To change the previously stored data or if the displayed data is not correct, press NO. Figure 7-13 Well Test Source Nuclide Selection screen will appear. July 16 WELL COUNTER INITIALIZATION 7-7 CAPINTEC, INC. Figure 7-14 Entering Serial Number screen will appear. The following examples are for Ba133. Entering Serial Number The serial number may be any combination of 10 numbers and letters. When a key is pressed, the number appears. Press the key again to change the number into one of the letters on the same key (e.g. press the 2 key 3 times to get the letter B). To go to the next character, press another key. If the next character is on the same key, press the UP ARROW (?) key to repeat use of that key. The DOWN ARROW (?) is the SPC key. Press ENTER when the correct serial number has been input. Figure 7-15 Entering Calibration Date screen will appear. Entering Calibration Date The calibration date is entered next. 7-8 WELL COUNTER INITIALIZATION July 16 CAPINTEC, INC. The date is checked for validity. If the entered date is not valid, a beep will sound and “DATE ERROR” will be displayed. The date must be re-entered. Figure 7-16 Entering Activity screen will appear. If the value needs to be changed, press CE. Figure 7-17 Test Source Verification screen will appear. July 16 WELL COUNTER INITIALIZATION 7-9 CAPINTEC, INC. If the displayed data is not correct, press NO. Figure 7-13 Well Test Source Nuclide Selection will appear. Trigger levels for Background, Wipe, Unrestricted and Sealed Sources may be viewed and changed by the user.
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The default Trigger Levels set at the factory are listed in Table 7-1 Wipe Trigger Level Defaults. Type Trigger Level Background Curies Becquerels Wipe (Work Areas) Unrestricted Areas 3000 cpm 50 cps Sealed Source 2000 dpm 33.3 Bq 200 dpm 3.3 Bq 5.0 nCi 185.0 Bq Table 7-1 Wipe Trigger Level Defaults 7-10 WELL COUNTER INITIALIZATION July 16 CAPINTEC, INC. Type Curies Becquerels Background Minimum Maximum Minimum Maximum Wipe (Work Areas) Unrestricted 60 cpm 9960 cpm 1.000 cps 166.0 cps Sealed source 60.00 dpm 25000 dpm 1.000 Bq 417.0 Bq 60 dpm 2500 dpm 1.000 Bq 41.70 Bq 0.100 nCi 270.0 nCi 3.700 Bq 9990 Bq Table 7-2 Wipe Trigger Level Limits Press MENU from the Well Measurement Screen. Select TRIG. LEVEL. Figure 7-18 Trigger Level Menu will appear. 1. Background 2. Wipe 3. Unrestricted 4. Sealed Source Figure 7-18 Trigger Level Menu Background Trigger Level When the measured background is greater than the background trigger level, an error message is displayed and the background result will not be accepted. If the instrument is contaminated, background will be increased. To view or change the Background Trigger Level, select BACKGROUND from Figure 7-18 Trigger Level Menu. Figure 7-19 Background Limit Verification Screen will appear showing the current Trigger Level. July 16 WELL COUNTER INITIALIZATION 7-11 CAPINTEC, INC. BACKGROUND 3000.0 cpm OK? Y or N Figure 7-19 Background Limit Verification Screen If the current Background Trigger Level is correct, press YES. Figure 7-18 Trigger Level Menu will re-appear. If the current Background Trigger Level is not correct, press NO. Figure 7-20 Background Limit Entry Screen will appear. Figure 7-19 Background Limit Verification Screen will re-appear showing the new setting. If the new Background Trigger Level is correct, press YES. If the new Background Trigger Level is not correct, press NO.

Wipe Areas Trigger Level When the activity of a Wipe for a particular nuclide exceeds the Wipe Trigger Level, its activity will be displayed and printed as “EXCEEDS”. 7-12 WELL COUNTER INITIALIZATION July 16 CAPINTEC, INC. Figure 7-21 Wipe Limit Verification Screen will appear showing the current Trigger Level. Note: The Trigger Level will be displayed in dpm if Ci is selected or Bq if Bq is selected. WIPE 2000.0 dpm OK? Y or N Figure 7-21 Wipe Limit Verification Screen If the current Wipe Trigger Level is correct, press YES. If the current Wipe Trigger Level is not correct, press NO. Figure 7-22 Wipe Limit Entry Screen will appear. Figure 7-21 Wipe Limit Verification Screen will re-appear showing the new setting. If the new Wipe Trigger Level is correct, press YES. Figure 7-18 Trigger Level Menu will re- appear. If the new Wipe Trigger Level is not correct, press NO. July 16 WELL COUNTER INITIALIZATION 7-13 CAPINTEC, INC. To view or change the Unrestricted Areas Trigger Level, select UNRESTRICTED from Figure 7-18 Trigger Level Menu. Figure 7-23 Unrestricted Limit Verification Screen will appear showing the current Trigger Level. Note: The Trigger Level will be displayed in dpm if Ci is selected or Bq if Bq is selected. UNRESTRICTED 200.0 dpm OK? Y OR N Figure 7-23 Unrestricted Limit Verification Screen If the current Unrestricted Trigger Level is correct, press YES. If the current Unrestricted Trigger Level is not correct, press NO. Figure 7-24 Unrestricted Limit Entry Screen will appear. Figure 7-23 Unrestricted Limit Verification Screen will re-appear showing the new setting. If the new Unrestricted Trigger Level is correct, press YES. Figure 7-18 Trigger Level Menu will re-appear. 7-14 WELL COUNTER INITIALIZATION July 16 CAPINTEC, INC. Sealed Sources When the activity of a wipe from a Sealed Source exceeds the Sealed Source Trigger Level, its activity will be displayed and printed as “EXCEEDS”.

To view or change the Sealed Sources Trigger Level, select SEALED SOURCE from Figure 7-18 Trigger Level Menu. Figure 7-25 Sealed Source Limit Verification Screen will appear showing the current Trigger Level. Note: The Trigger Level will be displayed in nCi if Ci is selected or Bq if Bq is selected. SEALED SOURCE 5.0 nCi OK? Y OR N Figure 7-25 Sealed Source Limit Verification Screen If the current Sealed Source Trigger Level is correct, press YES. If the current Sealed Source Trigger Level is not correct, press NO. Figure 7-26 Sealed Source Limit Entry Screen will appear. Figure 7-25 Sealed Source Limit Verification Screen will re-appear showing the new setting. July 16 WELL COUNTER INITIALIZATION 7-15 CAPINTEC, INC. If the new Sealed Source Trigger Level is not correct, press NO. EFFICIENCY DATA Efficiency data are used to convert the observed counting rate to the activity value. Efficiency data for 14 nuclides which are known are built into the system. The efficiencies may be input or measured. The nuclide is chosen from all nuclides in memory or from those added by the user. Select EFFICIENCIES. Figure 7-27 Well Efficiency Choose Nuclide Screen will appear. This is an artificial construct and is equivalent to I-131 using the counting rate in all the channels. The activity for “ALL” is always reported for Wipe and Unrestricted categories. This efficiency cannot be measured and must be input. The default value is 37.04. 7-16 WELL COUNTER INITIALIZATION July 16 CAPINTEC, INC. Figure 7-28 “All Channels” Verification Screen will appear. ALL CHANNELS EFF: 37.04 OK? Y or N Figure 7-28 “All Channels” Verification Screen If the current Efficiency is correct, press YES. Figure 7-27 Well Efficiency Choose Nuclide Screen will re-appear. If the current Efficiency is not correct, press NO to input a new Efficiency value. Figure 7-29 “All Channels” Efficiency Entry Screen will appear. Figure 7-28 “All Channels” Verification Screen will re-appear showing the new setting.

If the new Efficiency value is correct, press YES. If the new Efficiency value is not correct, press NO. Efficiency for Nuclide At Figure 7-27 Well Efficiency Choose Nuclide Screen, select a nuclide via the Pre-Set Nuclide keys, USER keys or NUCL key. July 16 WELL COUNTER INITIALIZATION 7-17 CAPINTEC, INC. If the current Efficiency is not correct, press NO to input a new Efficiency value or change the channels. Figure 7-32 Efficiency Entry Method Menu will appear. 7-18 WELL COUNTER INITIALIZATION July 16 CAPINTEC, INC. Figure 7-33 Efficiency Input Screen will appear. Figure 7-34 Channel Selection screen will appear. The channels that will be used to calculate activity must be selected. If previous data has been input, the previous selection will be highlighted as shown in Figure 7-34 Channel Selection screen. Y selects channels. CH 1 CH 4 CH 2 CH 5 CH 3 CH 6 ENTER when finished Figure 7-34 Channel Selection July 16 WELL COUNTER INITIALIZATION 7-19 CAPINTEC, INC. Press ENTER when the desired channels are selected. Figure 7-30 Efficiency Verification Screen will re-appear. If the new Efficiency and channels are correct, press YES. If the new Efficiency and channels are not correct, press NO to input a new Efficiency value or change the channels. The new Efficiency for the selected nuclide is now stored in memory as the default. Measuring Efficiency Note: The Well Counter must be calibrated before measuring Efficiency. (Reference CHAPTER 11: WELL COUNTER TESTS, SECTION: AUTO CALIBRATION) From Figure 7-32 Efficiency Entry Method Menu, select MEASURE EFF. Figure 7-35 Enter Calibration Date will appear. If the input date is not valid, the message “DATE ERROR” will be displayed. Figure 7-36 Time Entry Screen will appear. 7-20 WELL COUNTER INITIALIZATION July 16 CAPINTEC, INC. The time is checked for validity. If the input time is not valid, the message “TIME ERROR” will be displayed. The time must be re-entered. When the value and unit are correct, press ENTER.

Y or N Figure 7-38 Calibrated Activity Verification Screen July 16 WELL COUNTER INITIALIZATION 7-21 CAPINTEC, INC. Figure 7-35 Enter Calibration Date screen will re-appear. If the displayed calibration data is correct, press YES. Figure 7-39 Measure Source Instruction Screen will appear. Measure Source Any Key to Continue Figure 7-39 Measure Source Instruction Screen Place the source in the Well Counter and press any key (except HOME) to continue. Figure 7-40 Calibration Measurement Start Screen will appear. 60s Press COUNT to START Figure 7-40 Calibration Measurement Start Screen The measurement time may be changed. The minimum time is 60 seconds. The maximum count time is 9999 seconds. When the counting is finished, if a printer is attached to the system, the first part of the report will be printed with a screen dump of the measurement. Figure 7-34 Channel Selection screen will appear allowing the selection of the channels. Use the UP ARROW (?) and DOWN ARROW (?) keys to move the pointer (right arrow ?) so that it points to the channel to be selected and then press the Y key. 7-22 WELL COUNTER INITIALIZATION July 16 CAPINTEC, INC. The efficiency will be calculated and Figure 7-30 Efficiency Verification Screen will re-appear. If a printer is attached to the system, the report will finish printing the channels and Efficiency data. If the measured Efficiency is correct, press YES. If the measured Efficiency is not correct, press NO to perform a new Efficiency measurement. USER KEY ASSIGNMENT The USER Keys are a quick way to select a nuclide. A nuclide may be assigned to each key. Up to 5 USER Keys can be assigned for use with the Well Counter. Select USER KEYS. Figure 7-41 Well User Key Selection will appear. WELL SELECT USER KEY U1 TO U5 Any Other Key To Continue Setup Figure 7-41 Well User Key Selection Press any other key (except a USER key or the HOME key) to exit User Key Assignment and return to Figure 7-2 Well Setup Menu.

Current Assignment Display Press the USER key to which a nuclide is to be assigned. Figure 7-42 User Key Verification screen will appear showing the current key assignment. In the example, Co60 has been assigned to U1. July 16 WELL COUNTER INITIALIZATION 7-23 CAPINTEC, INC. U1: Co60 OK? Y or N Figure 7-42 User Key Verification If no assignment has been made, the word “NONE” will appear after the key name. If the assignment is correct, press YES and Figure 7-41 Well User Key Selection screen will re-appear. If the assignment is not correct, press NO to change the assignment. Figure 7-43 Nuclide Name Assignment Screen will appear. The number on each key will appear. For example, if Cs137 is entered, 27137 will appear. Press ENTER when the nuclide has been specified. To change the assignment to NONE, press ENTER without specifying a nuclide. Assignment Confirmation Figure 7-42 User Key Verification screen will re-appear with the nuclide name that was just input. 7-24 WELL COUNTER INITIALIZATION July 16 CAPINTEC, INC. Figure 7-41 Well User Key Selection screen will re- appear. If the assignment is not correct, press NO. Figure 7-43 Nuclide Name Assignment Screen will re-appear. RESETTING HV (HIGH VOLTAGE) If you are having difficulty calibrating the Well Counter, you may be instructed by Capintec Support to reset the HV DAC to a particular value. Note: Over time, the amplification characteristics of a photomultiplier tube change. If the gain of the detector is not adjusted occasionally, the resolution of the detector deteriorates significantly, making it difficult to identify isotopes correctly. Therefore, it is important to check the gain of the detector at least once daily. The RESET HV menu option allows the operator to manually adjust the gain in order to bring the calibration of the detector back. To perform this procedure, select RESET HV from Figure 7-2 Well Setup Menu. Figure 7-44 Well HV DAC Reset Screen will appear showing the current value of the HV DAC.

HV DAC 3645 RESET? Figure 7-44 Well HV DAC Reset Screen Press YES to change the HV DAC value. Figure 7-45 Well HV Entry Screen will appear. Figure 7-46 Well Reset HV Auto Cal Screen will appear. Note: The minimum value that can be input is 0. The maximum value that can be input is 8191. AUTO CAL MUST BE PERFORMED Any Key to Continue Figure 7-46 Well Reset HV Auto Cal Screen Press any key (except HOME) and Figure 7-2 Well Setup Menu will appear. Auto Calibration (reference CHAPTER 11: WELL COUNTER TESTS, SECTION: AUTO CALIBRATION) must be performed before any other measurements can be carried out. Note: If the unit still will not calibrate after resetting the HV, contact Capintec’s only Authorized Service Center for evaluation at (800) ASK-4CRC. 7-26 WELL COUNTER INITIALIZATION July 16 CAPINTEC, INC. Also, if a printer is attached to the system, a report will be printed containing the system configuration. Press MENU from the Chamber Measurement Screen. Figure 8-1 Main Menu will appear. 1. Inventory 2. Calculations 3. Diagnostics 4. Setup Figure 8-1 Main Menu When DIAGNOSTICS is selected, the system diagnostic testing will begin. The instrument's memories and the programs are checked and the results printed (if a printer is attached to the system) and displayed (Figure 8-2 Diagnostics Screen if OK). If any of the tests fail, contact Capintec’s only Authorized Service Center at (800) ASK-4CRC. July 16 DIAGNOSTICS 8-1 CAPINTEC, INC. CRC?-25W DIAGNOSTICS SYSTEM TEST PASS: 719a Any Key to Continue Figure 8-2 Diagnostics Screen if OK Note: The value displayed after PASS is for example only and is not a real value. The value displayed will depend upon the current revision of the installed software. Press any key (except HOME) to continue. Figure 8-1 Main Menu will re-appear. If the Diagnostics test fails, Figure 8-3 Diagnostics Screen if fails will appear.

DIAGNOSTICS SYSTEM TEST FAIL: fc10 Any Key to Continue Figure 8-3 Diagnostics Screen if fails Note: The value displayed after FAIL is for example only and is not a real value. If the System Test fails, restart the unit and perform the test again. If it fails again, contact Capintec’s only Authorized Service Center (reference CHAPTER 19: CLEANING AND MAINTENANCE, SECTION: SERVICING) for more information, since this will indicate a SD card error or a system malfunction Press any key (except HOME) to continue. Figure 8-1 Main Menu will re-appear. 8-2 DIAGNOSTICS July 16 CAPINTEC, INC. If a printer is attached to the system, the results will also be printed. If any of the tests fail, contact Capintec’s only Authorized Service Center at (800) ASK-4CRC. (Reference CHAPTER 8: DIAGNOSTICS) Chamber Daily Test The Daily Test should be conducted at the beginning of each working day, prior to measuring any samples which will be administered to patients. These tests consist of an Auto Zero operation, a Background Adjustment, a Chamber Voltage Test, a Data Check, an Accuracy Test, and a Constancy Test. (reference CHAPTER 10: CHAMBER BACKGROUND AND TESTS) If a printer is attached to the system, the test results will automatically be printed at the end of all source measurements. Accuracy Test If your Accuracy Test setup includes nuclides that are not used in the Daily Tests, the Accuracy Test should be performed with those nuclides. It will not be necessary to repeat the test for those nuclides that were included in the Daily Test. (reference CHAPTER 10: CHAMBER BACKGROUND AND TESTS) If a printer is attached to the system, the test results will automatically be printed at the end of all source measurements. Note: Accuracy test requires a dedicated check source of known activity which is measured on a daily basis. This test provides both an accuracy value as well as a long term reproducibility check of the instrument.

Note: There is no need to perform a constancy test on alternate calibration (nuclide) settings. This provides no value in terms of instrument operation. However, due to numerous procedures which reference this test, operators who prefer to include this test should refer to CHAPTER 10: CHAMBER BACKGROUND AND TESTS. The initial linearity should be performed using decay method of measuring a short lived isotope over time. Auto Calibration is performed with the same source as in Well Counter Test. (Reference CHAPTER 11: WELL COUNTER TESTS; SECTION: AUTO CALIBRATION) If there is a printer connected to the system, the calibration results will automatically be printed at the end of the measurement. Well Counter Test The Well Counter Test should be performed every day. It cannot be performed unless Well Background has been measured for the current day. (Reference CHAPTER 11: WELL COUNTER TESTS; SECTION: TEST) If a printer is attached to the system, the test results will automatically be printed at the end of the source measurement. DAILY QUALITY ASSURANCE TESTS Daily Tests The Daily Test should be conducted at the beginning of each working day, prior to measuring any samples, which will be administered to patients. These tests consist of an Auto Zero operation, a Background Adjustment, a Chamber Voltage Test, a Data Check, an Accuracy Test, and a Constancy Test. (Reference CHAPTER 10: CHAMBER BACKGROUND AND TESTS) Accuracy Test If your Accuracy Test includes nuclides that are not used in the Daily Tests, the Accuracy Test should be performed with those nuclides as a part of the Daily Test. This test is the same as the Accuracy Test described in CHAPTER 10: CHAMBER BACKGROUND AND TESTS, SECTION: ACCURACY and CONSTANCY TEST IN DAILY TEST. This test is performed independently from the other portions of the Daily Test sequence. The Accuracy Tests cannot be conducted until the Test Source data has been entered (reference CHAPTER 6: CHAMBER INITIALIZATION, SECTION: TEST SOURCES).

If a printer is attached to the system, the test results will automatically be printed at the end of all source measurements. Contamination Test This test is normally performed at the end of each workday. At the very least, it should be performed once per week. CAUTION: Never use the calibrator without the Chamber liner in place. Liners are inexpensive and easy to replace. When Diagnostics is selected, the instrument's memories and programs are checked and the results are displayed. If a printer is attached to the system, the results can be printed. If any of the tests fail, contact Capintec’s only Authorized Service Center at (800) ASK-4CRC. (Reference CHAPTER 8: DIAGNOSTICS). Thereafter, use of calibrated sleeves is acceptable. The three most common methods are described in CHAPTER 6: CHAMBER INITIALIZATION, SECTION: LINEARITY TEST DEFINITION and CHAPTER 13: ENHANCED TESTS, SECTION: PERFORMING LINEARITY TEST. The Enhanced Tests are described in CHAPTER 13: ENHANCED TESTS. Moly Assay is described in CHAPTER 12: CHAMBER MEASUREMENT PROCEDURES; SECTION: MOLY ASSAY. BACKGROUND Background measurements are performed by pressing the BKG key from the Chamber Measurement screen (Background measurement is also part of the Daily Test function (Reference this chapter, SECTION: TEST: Background). Figure 10-1 Background No Sources Screen will appear. MEASURE BACKGROUND NO SOURCES Any Key to Continue Figure 10-1 Background No Sources Screen July 16 CHAMBER BACKGROUND AND TESTS 10-1 CAPINTEC, INC. Figure 10-2 Background Please Wait Screen will appear until a measurement is available. BACKGROUND PLEASE WAIT Figure 10-2 Background Please Wait Screen When a measurement is available, Figure 10-3 Background Results Screen will appear. Although the value is acceptable, the reason for the high value should be investigated. If any sources are found nearby, repeat the measurement. If the cause of the high reading (nearby source, contaminated well etc.

) cannot be found, contact Capintec’s only Authorized Service Center at (800) ASK-4CRC. Press ENTER to accept the result. The Chamber Measurement screen will re-appear. Figure 10-5 Tests Menu will appear. TESTS 1. Daily 2. Chamber Volts 3. Accuracy 4. Enhanced 5. Moly Assay Figure 10-5 Tests Menu Select DAILY from Figure 10-5 Tests Menu. Figure 10-6 Auto Zero Instruction screen will appear. July 16 CHAMBER BACKGROUND AND TESTS 10-3 CAPINTEC, INC. AUTO ZERO NO SOURCES Any Key to Continue Figure 10-6 Auto Zero Instruction Remove all sources from the vicinity of the Chamber and press any key (except HOME) to continue. Figure 10-7 Auto Zero Please Wait Screen will appear until a measurement is available. AUTO ZERO PLEASE WAIT Figure 10-7 Auto Zero Please Wait Screen When a measurement is available, Figure 10-8 Auto Zero Results Screen will appear. AUTO ZERO -0.03 mV OK ENTER to Accept Figure 10-8 Auto Zero Results Screen 10-4 CHAMBER BACKGROUND AND TESTS July 16 CAPINTEC, INC. Check to make sure that no sources are in the area. If any sources are found, remove them and repeat the measurement. If no sources were found, contact Capintec’s only Authorized Service Center at (800) ASK-4CRC. Press ENTER to accept the result and continue the Daily Test. Figure 10-9 Background Please Wait Screen will appear until a measurement is available. Background The second part of the Daily Test is Background measurement. Background measurement can also be performed by pressing the BKG key from the Chamber Measurement screen. If Background is performed via the BKG key, you will first be told to remove all sources from the vicinity of the Chamber and press any key to continue. BACKGROUND PLEASE WAIT Figure 10-9 Background Please Wait Screen When a measurement is available and ready, Figure 10-10 Background Results Screen will appear. Figure 10-12 Chamber Voltage Please Wait Screen will appear. Chamber Voltage The third part of the Daily Test is the Chamber Voltage test.