Radiological Equipment - Advanced

Radiological Equipment - Advanced
Introductory slide.

Objectives For each radiation detection instrument:
Perform advanced operating procedures Become familiar with software Identify advanced maintenance procedures Prerequisite training: Radiation awareness Basic operation and maintenance of each instrument OBJECTIVES Upon completion of this block of instruction, you will be able to accomplish the learning objectives on the slide for each item of radiation detection equipment. The basic course information is considered a prerequisite to this course, since familiarity with radiation basics and with the normal operating procedures of the instruments is addressed in the basic course.

IsoTrak DoseGuard ISOTRAK DOSEGUARD
Introductory slide for this section.

Basic Operation Review
Prepare for operation Check dose and dose rate Check alarms BASIC OPERATION REVIEW These topics were covered in the basic course.

Advanced Operation Overview
Recommended procedures not to be done by operator Reset default reading Turn off/on chirp Reset dose reading to zero Check/change dose or rate alarm set points Deactivate dose or rate alarm Test battery during operation Use reader and software ADVANCED OPERATION OVERVIEW These topics will be covered on the next several slides. They are described in the User’s Manual, but not necessarily required for normal operation.

Function Settings Toggle button to feature, hold to reset
Feature options 1x = non-default display (dose rate) 2x = OFF 3x = chirp off/on 4x = reset dose to zero 5x = dose alarm display/reset 6x = rate alarm display/reset 7x = battery test FUNCTION SETTINGS The list on the slide shows the possible settings by pressing the button one or more times. To activate any setting, hold the button until the long beep. This chart is repeated on the underside of the meter case.

Reset Default Reading Normal default is total dose reading Procedure
Can switch with current dose rate reading Procedure Press button 1x Display shows dose rate (non-default) Hold button until long beep; release Display shows dose rate as new default RESET DEFAULT READING The normal default display is the total dose reading. The total dose reading can be exchanged to be the dose rate reading; the dose rate will then become the default display. This feature is toggled once for each time this procedure is done. Procedure: a. Press the button once. The display will show the rate reading (or the non-default reading). b. Hold the button until the long beep. The rate is now the default display reading. c. To switch back to dose as default, repeat the procedure.

Chirp Feature “Chirp” alerts user of increased dose rate
Disabled chirp does not mute alarms Display shows horn if chirp is enabled Procedure to disable/enable Press button 3x Display reads “CHr” Hold button until long beep, release CHIRP FEATURE The chirp (also called clicker) feature alerts the user to an increase in the dose rate below the alarm level. When enabled, the horn icon will appear in the display and it will not appear when disabled. When disabled, this does not mute the audio alarm. This feature is toggled on or off once for each time this procedure is done. Procedure: a. Press the button three times, until the display reads CHr. b. Hold the button until a long beep, then release. The chirp is now reset to the opposite (on or off) from the previous setting. The horn icon will appear or not as a reminder of the chirp status.

Reset Dose to Zero Verify dose is zeroed before use Procedure
Press button 4x Display reads “CLr” Hold button until long beep Display shows current dose flashing Will revert to default if no further action While flashing, hold button until long beep Dose resets to zero, returns to default RESET DOSE TO ZERO Verify that the dose is zero before using. If not, reset it to zero, if authorized, or return it to the Radiation Safety Officer (RSO) to be zeroed. Procedure: a. Press the button four times, until the display reads “CLr”. b. Hold the button until a long beep is heard, about 3 seconds, then release. The display will show the current dose flashing. If no further action is done, the normal display will return after a 10 second time out. c. While the dose reading is flashing, hold the button again until the long beep, then release. The dose will read zero and the display will return to the normal default.

Check Dose Alarm Set Point
Verify before use Procedure Press button 5x Display reads “dAL” Hold button until long beep, release Display shows dose alarm setting, returns to default CHECK DOSE ALARM SET POINT It is recommended to verify this setting before use, but not required. Procedure: a. Press the button five times, until the display reads dAL. b. Hold the button until the long beep. The display will show the dose alarm set point for several seconds, then return to the default display.

Reset Dose Alarm Set Point
Reset to current guidance Procedure Check alarm: Press button 5x, display “dAL”, hold Display shows dose alarm setting for several sec. During display, toggle button through list of choices Select zero to disable dose alarm Hold button until long beep; release RESET DOSE ALARM SET POINT Reset the alarm to whatever level corresponds to local protocols. Procedure: a. Press the button 5 times. The display will read “dAL”. b. Hold the button until the long beep. The display will show the alarm set point for several seconds; the same as done earlier to check it. c. Press the button again to toggle through the options for alarm point settings. d. To select an option, hold the button until the long beep. If this is not done within 10 seconds, the original alarm set point will remain unchanged.

Check Dose Rate Alarm Set Point
Verify before use Procedure Press button 6x Display reads “drA” Hold button until long beep, release Display shows rate alarm setting, returns to default CHECK DOSE RATE ALARM SET POINT It is recommended to verify this setting before use, but not required. Procedure: a. Press the button six times, until the display reads “drA”. b. Hold the button until the long beep. The display will show the dose rate alarm set point for several seconds, then return to the default display.

Reset Dose Rate Alarm Set Point
Reset to current guidance Procedure Check alarm: Press button 6x, display “drA”, hold Display shows rate alarm setting for several sec. During display, toggle button through list of choices Select zero to disable rate alarm Hold button until long beep; release RESET DOSE RATE ALARM SET POINT Reset the alarm to whatever level corresponds to local protocols. The procedure is similar to setting the dose alarm. Procedure: a. Press the button 6 times. The display will read “drA”. b. Hold the button until the long beep. The display will show the alarm set point for several seconds, the same as done earlier to check it. c. Press the button again to toggle through the options for alarm point settings. d. To select an option, hold the button until the long beep. If this is not done within 10 seconds, the original alarm set point will remain unchanged.

Test Battery During Operation
Use for troubleshooting battery Procedure: Press button 7x Display reads “diA” Hold button until long beep; release Alarm sounds for 5 sec. If battery symbol appears after test, replace battery TEST BATTERY DURING OPERATION Although described as an operating procedure, testing the battery can also be used as a diagnostic. Procedure: a. Press the button 7 times. The display will read “diA”. b. Hold the button until a long beep, then release. The alarm will sound for 5 seconds while the battery is tested. c. If the display shows the battery icon, replace the battery. If not, continue normal operations.

Using the Reader Install software to PC Use PC to
Prevent user from changing settings via button Customize settings Print data USING THE READER The reader and its software are optional pieces of equipment, normally procured as one set per organization rather than one per instrument. a. The reader requires the use of a PC to interface with the instrument through the software. Have the hospital IT personnel load the software and configure the PC to prevent any licensing or hardware problems. b. Use the PC and reader to set the instrument, lock it from being reset by an operator, or print the data stream.

Start Window START WINDOW
Once the reader application starts, the Start window prompts placing a dosimeter into the reader.

Main Window MAIN WINDOW
Once the software recognizes a dosimeter, one of the two following Main windows (this slide or the next) will appear, depending on the dosimeter configuration. They both do the same thing. a. The software technical manual describes the menu commands for the Main window. b. Instrument information, such as serial number and configuration data are displayed. Many of these options can be changed. Once a set of parameters are set, they can be remembered as a “quick configuration,” which will be shown in a minute. c. The check boxes for the Button Functions section allow disabling some of the features previously discussed. If disabled, only the PC and reader can be used to change these settings.

Quick Configuration Window
If selecting a set of parameters to be remembered, check a box under the Quick Configuration section of the Main window and click the “Define” button. The Quick Configuration window will appear. This is a shortcut to apply the same parameters to several instruments. You can define up to four different sets of parameters.

Print Configuration Data
Printing the configuration data will generate a report that looks like the one shown.

Introduction to Maintenance
Operator level Perform simple, “common sense” checks without tools Hospital (organization) level Verify failures Perform advanced programming or diagnostics Replace authorized components Factory or supporting maintenance Calibrate, repair, rebuild, replace internal components INTRODUCTION TO MAINTENANCE There are three distinct levels of maintenance. a. In the basic course, only the operator level maintenance procedures were addressed. These are the simple, common sense checks and services that anyone can do without having to use tools or special equipment. b. This course will add to your knowledge by covering the organizational level of maintenance. These procedures might require troubleshooting or diagnostics to verify the failure that an operator has reported. The maintainer might have to do programming of instrument parameters or replace components as described in the User’s Guide. Generally, if it requires disassembly, the maintainer (and not the basic operator) should do it. c. Many procedures can only be done at the factory, such as calibrating, repairing or rebuilding components, or replacing subassemblies.

Advanced Maintenance Overview
System diagnostics No corrective maintenance Calibration Warranty information ADVANCED MAINTENANCE OVERVIEW These procedures will be addressed on the next several slides.

System Diagnostics No user adjustments possible Error codes:
Note error code and return to factory Error codes: Er1 = calibration error Er2 = fault in nonvolatile RAM Er3 = fault in detector Er4 = fault in RAM SYSTEM DIAGNOSTICS There are no user adjustments that can be done, but in the process of troubleshooting, you might observe an error code. Note the code and the associated fault when returning the instrument to the factory for repair.

Calibration Frequency: Recommended annually
Based on local protocols Procedure for sending to factory Track due date—no surprises Send instrument to factory Track shipment until returned Cost estimate (2006): $40 CALIBRATION Calibration is recommended annually by the vendor, but may be more or less frequent according to local requirements. Always check the calibration sticker before use. Procedure for returning the instrument for calibration: a. Track the due dates so there are no surprises. b. Schedule the instruments to prevent having all of them in calibration at the same time. c. Send the instrument in its box (or suitable packing) to the following address: QSA Global Inc., 40 North Avenue, Burlington, MA 01803 d. Track the shipment until it is returned. e. The estimated cost for calibrating one instrument is $40.

Warranty Information 12 months free of defects in material or workmanship WARRANTY INFORMATION The factory warranties the instrument for 12 months.

Ultra Radiac ULTRA RADIAC Introductory slide for this section.

Prepare for operation Check dose and dose rate Turn on back light Check stay time Data logging Alarms BASIC OPERATION REVIEW These topics were covered in the basic course.

Recommended procedures not to be done by operator Reset dose to zero Use sleep mode Use source finder mode Check/change alarm indicators Check/change dose or rate alarm set points View data log Clear data log Use cable and software ADVANCED OPERATION OVERVIEW These topics will be covered on the next several slides. They are described in the user’s manual, but not necessarily required for normal operation.

Reset Dose to Zero Verify dose is zeroed before use Procedure
Log data before zeroing Procedure Press Dose key, display shows dose reading If dose not 000, continue Hold Dose + Clear/Test keys until “000” is displayed RESET DOSE TO ZERO First, verify the dose is zeroed before using the instrument. Remember to log the data before zeroing the meter once it is in use, or the data will be lost. Procedure: a. Press the Dose key to display the dose reading. If it is 000, no further action is required. The normal display will return after a 10 second time out. b. To zero the dose reading, hold the Dose and Clear/Test keys together until the display flashes 000, then release.

Use Sleep Mode Extends battery life >1000 hours Set sleep mode
Wakes up every 5 minutes Alarm sounds if preset levels exceeded Set sleep mode When installing batteries Hold Rate + On/Off key Resume normal operation Hold On/Off key USE SLEEP MODE To preserve the battery life, the meter includes a function called Sleep mode that will extend the battery life from approximately 100 hours to approximately 1000 hours. This is a vestige of military requirements, from which the instrument design was originally based, and is rarely used by emergency responders. a. The meter passively monitors radiation while in Sleep mode. The display will “wake up” and show the normal readings once every 5 minutes, otherwise the word “Sleep” is displayed. b. If either dose or rate alarm is exceeded, the meter will revert to the normal operating mode and the appropriate alarm will sound. c. The Sleep mode starts automatically when the battery door is closed on a fresh set of batteries. To start Sleep mode while in normal operation, hold the Rate and On/Off keys together until the display shows “- - -”. If released too soon, the normal display will return. d. To exit Sleep mode, hold the On/Off key to power up as before.

Use Source Finder Mode Purpose: Use as an alternate survey meter
Activate: Hold Rate key until flashing “1” Use as survey meter Audible clicker activated Deactivate: Hold Rate key until flashing “0” USE SOURCE FINDER MODE The meter can be used like a “geiger counter” for survey by enabling a clicker feature in the Source Finder mode. a. To activate the Source Finder mode, hold the Rate key until the display flashes “1”. The clicker is now active, and will click faster as the meter is exposed to an increasing dose rate. b. To deactivate the Source Finder mode, hold the Rate key again, until the display flashes “0”. c. This procedure toggles on or off the clicker. All other functions will still work the same in either mode of operation.

Check Alarm Set Points Dose rate alarm set points: High and Low
Press Alarm + Rate keys Press Rate key to select H or L Press Clear/Test key to see alarm set point (H or L) Vibrator alarm active: display also shows “- - -” Dose alarm set points: High and Low Same procedure using Alarm + Dose keys CHECK ALARM SET POINTS There are four alarm set points: high and low alarms for the dose rate and high/low for dose. The procedures to check any one of them are roughly the same. Procedure (rate alarm): a. Press the Rate and Alarm keys together to display the letter H (high). b. Toggle between H and L using the Rate key. Whichever letter is displayed, that alarm will be seen next. c. Press the Clear/Test key to display the alarm set point. This number will flash. Press no other buttons. After 10 seconds, the normal display will return. d. If the vibration alarm is active, the display will scroll between the set point and “- - -”. Check the dose alarm in the same manner, but use the Dose key instead of the Rate key: Dose + Alarm, Dose to toggle H/L, Clear/Test to display the set point.

Change Alarm Indicators
Enable/disable visual, audio, or vibration Procedure (rate alarm): Check alarm: Rate + Alarm, Rate (H/L), Clear/Test Press Alarm until desired combination appears Wait 10 sec. for return to normal display Dose alarm procedure same, use Dose key CHANGE ALARM INDICATORS Change the way the instrument alarms by enabling (disabling) any combination of vibration, audio, or video alarms. Procedure (rate alarms): a. Press both the Rate and Alarm keys to display the letter H (high alarm). b. Press the Rate key to toggle between H and L for the desired alarm to reset. c. Press the Clear/Test key to display the alarm set point and indicators. d. Press the Alarm key repeatedly to toggle between options. The word AUD or VIS will appear if these alarm indicators are enabled, and the display will scroll “- - -” if the vibration alarm is enabled. e. When the desired option appears, let the display time out for 10 seconds and return to normal readings. Reset the Dose alarm indicators using the same procedure, substituting the Dose key for the Rate key.

Change Alarm Set Points
Procedure (rate alarm): Check alarm: Rate + Alarm, Rate (H/L), Clear/Test Press Clear/Test again to start Press Rate until desired decimal and units appear, press Clear/Test to select Repeat for each digit Same procedure for dose alarm Use dose key CHANGE ALARM SET POINTS Reset the alarms set point to the desired level, based on local protocols. These steps are similar to setting the indicators and checking the alarm set points done earlier. Procedure (rate alarms): a. Press both the Rate and Alarm keys to display the letter H (high alarm). b. Press the Rate key to toggle between H and L for the desired alarm to reset. c. Press the Clear/Test key to display the alarm set point and indicators. d. Press the Clear/Test key again to display the alarm point with the decimal and units flashing. e. Press the Rate key repeatedly to toggle between option for decimal and units. f. When the desired option appears, press the Clear/Test key to lock this value and flash the left digit. g. Change the value with the Rate key and lock it with the Clear/Test key. The next digit will start flashing. h. Repeat for all three digits. The display will return to normal. Reset the Dose alarm set point using the same procedure, substituting the Dose key for the Rate key.

View Logged Data View data from instrument
Power Off: Hold Rate + On/Off keys 1 sec. Displays current log number Scroll up (Rate) or down (Dose) Number, rate, dose, next number … Return to normal: Power Off and On PC access (advanced operations) Download, view, or clear data log VIEW LOGGED DATA The data can be viewed from the instrument display or from the PC interface. The display version will be explained here; the PC interface will be practiced later. a. Power Off the instrument by holding the On/Off key until the display shows “- - -”. b. Hold the Rate key and then press the On/Off key for 1 second. This powers up the instrument to read the logged data. The display will show the highest logged data point number; for example, if there are six points, the number 6 will be displayed. c. Use the Rate key to scroll up through the highest (most recent) data point to each preceding. The sequence in the previous example would be #6, the dose rate at that time, the total dose at that time; #5, its rate, its dose; #4, etc. After #1, the list continues with the highest number again. Reverse scrolling with the Dose key, if preferred. d. To exit data viewing, power Off and On. Hold the On/Off key as described before.

Clear Data Log Recommend download to PC first Procedure
View data log (power Off, hold Rate + On/Off) Hold Rate + Alarm, press Clear/Test (all 3) Display “0” indicates all data cleared Return to normal: Power Off and On CLEAR DATA LOG This clears all logged data and resets the count number to zero. It is recommended to download data before clearing it. The PC can also be used to clear the data log. Using the PC to download and clear logged data will be explained later in the lesson. Procedure: a. View the data log. Power Off, then hold the Rate and On/Off keys until the log number appears. b. Hold the Rate and Alarm keys, then press the Clear/Test key, all three together, until the display shows 0. c. As before, power Off to exit the data view mode. Power On to start normal operation as needed.

Using the PC Software Use the PC to Print and download logged data
Change instrument parameters Observe readings in real time USING THE PC SOFTWARE The cable and PC software are optional pieces of equipment, normally procured as one set per organization rather than one per instrument. a. The instrument requires the use of the IR reader cable to interface with the PC through the software. Have the hospital IT personnel load the software and configure the PC to prevent any licensing or hardware problems. b. Use the PC to print and download logged data, set the instrument parameters, or observe the data stream in real time.

Initializing Setup Install software to PC
Connect cable between PC and meter Start software Set password 12345 Main screen appears INITIALIZING SETUP Start up procedures: a. Install the software, as stated before. b. Connect the cable to the PC, using an adapter if needed. c. Start the software. The password screen will appear. d. It is recommended to use a simple password. This must be set the first time, then entered for access thereafter. An example is If the password is forgotten, call the factory service desk for help. It may be necessary to uninstall and reinstall the software. e. Once the password is accepted, the Main Screen will appear.

The software User’s Manual describes each menu command and button in detail. A few of the main features will be described in the next several slides.

Text File Export File menu on Main Screen Export to text or Excel
To download a file for printing or saving as a text file, the menu File/Data Logging/Export will create a file in text or Excel format. The example shows the Global Positioning System (GPS) optional feature data, which is not included in current models.

Interrogate Meter INTERROGATE METER
Usually, the first step is to interrogate the meter. This establishes the database in the PC. Click the Interrogate button on the Main window to open the Setup window. a. The instrument settings and data appear in the window. b. Check the Lock Out boxes to prevent an operator from clearing the data log or changing the settings without the PC interface. c. Click the “Advanced>>” button to allow more settings.

Advanced Settings ADVANCED SETTINGS
This window appears from the Advanced button on the Setup window. To monitor real time readings (an option from the Main window), select the items to be monitored and check the two boxes in the lower right corner, then click Apply.

Manage Templates MANAGE TEMPLATES
This function allows creating a template of settings that can be used to reset multiple instruments to the same parameters.

Monitoring Mode MONITORING MODE
The monitoring mode will show real time readings from the instrument, if the Enable Continuous Monitoring box was checked in the Advanced Settings window.

Troubleshooting System diagnostics No corrective maintenance Calibration Warranty information ADVANCED MAINTENANCE OVERVIEW These procedures will be addressed on the next several slides.

Troubleshooting Fault or problem Solution Low battery icon
Change batteries Failed operational test (Display flashing 0) Power Off and On, retest Contact service center GM tube failure (Display = = =) Overflow alert (reading too high) (Display flashing - - -) Back away from area, reset alarms TROUBLESHOOTING The troubleshooting table is compiled from the troubleshooting guide in the User’s Manual. There are few corrective actions that the user can do if the instrument fails.

System Diagnostics Test key function during operational test
Initiate test: Clear/Test, 888  000, press keys Key codes: Dose = 002 Alarm = 010 Rate = 001 Light = 020 Clear/Test = 004 On/Off = OFF SYSTEM DIAGNOSTICS If there is some indication that a key is not operating properly, this procedure can be used as part of the startup testing to verify key functionality. a. Start up as normal. b. Old the Clear/Test key to start the operational test. c. When the display stops the self test series at “000”, press each key and observe the display. If the display is anything other than the code shown, note the code and return the instrument for repair.

Calibration Frequency: Recommended 1-2 yrs
Based on local protocols Procedure for sending to factory Track due date—no surprises Schedule to keep some instruments on hand Call for tracking # Send instrument to factory 2-3 week turnaround Cost estimate (2006): $125 FDNY uses local calibration option CALIBRATION Calibration is recommended every 1 to 2 years by the vendor, but may be more or less frequent according to local requirements. Always check the calibration sticker before use. Procedure for returning the instrument for calibration: a. Track the due dates so there are no surprises. b. Schedule the instruments to prevent having all of them in calibration at the same time. c. Call the factory to receive a tracking number before shipping. The number is d. Send the instrument in its box (or suitable packing) to the following address: Canberra Industries, Attn: Service, 800 research Parkway, Meriden, CT 06450 e. Track the shipment until it is returned. Normal turnaround is about 2 to 3 weeks. f. The estimated cost for calibrating one instrument is $125. g. Another option is to purchase a field calibration unit. The Fire Department of New York (FDNY) has done so, to allow field calibration of their instruments.

Warranty Information Published in User’s Manual
1 year free of defects from materials or workmanship 90 days software operates as specified WARRANTY INFORMATION Warranty information appears in the User’s Manual. The factory warranties the instrument for 12 months and the software for 90 days.

Radiation Survey Meter

Controls and Indicators
Calibration switch well open to see adjustments CONTROLS AND INDICATORS The controls not described in the basic course are hidden under the calibration cover or inside the instrument case. a. The calibration controls should not be adjusted except during calibration. b. The internal switchboard is described on the next slide.

Internal Controls Switchboard inside meter shell RS-232 port
16-position function switch Enter button Up and Left buttons RS-232 port INTERNAL CONTROLS The switchboard inside the instrument case has several controls for additional use. The function switch is used with the Up, Left, and Enter buttons to reset instrument parameters. The RS-232 is used for data transfer, such as firmware upload.

Prepare for operation Use clicker Use gamma probe Change probes Use pancake probe Alarms BASIC OPERATION REVIEW These topics were covered in the basic course.

Scalar function Setting parameters Data port connection ADVANCED OPERATION OVERVIEW These topics will be covered on the next several slides. They are described in the User’s Manual, but not necessarily required for normal operation.

Scalar Operation Purpose: Record total count over fixed time
Operating procedures Set mode switch to Scalar Push handle button to start count “COUNTING” displayed until finished Display shows final count Reset alarm by pressing handle button (restart count) or power Off/On SCALAR OPERATION The purpose and general use of a scalar is not covered in this course. The use of this meter’s scalar function is as follows: a. The scalar counts radiation (cpm or cps) over a specified period of time until the time limit or total counts are reached. The latter will cause a scalar alarm. b. Procedures to use: Set the Mode switch to Scalar and start the count with the button in the tip of the handle. c. The display will show the count in small digits and the word “counting” until finished. d. If a scalar alarm occurs, reset it by restarting the count (press the handle button) or power Off and On.

Switchboard Settings Procedure (power On)
Set Detector toggle switch Open case Set function switch to desired position Press ENTER Display flashes right digit of current setting Press UP to change character value Press LEFT to advance to next character Press ENTER to accept setting Detach switchboard to prevent changes SWITCHBOARD SETTINGS The 16-position function switch settings and their positions are described in the User’s Manual and in the operating checklist at the end of this module. The general procedure to set any parameter with the switchboard is the same. a. Set the Det toggle switch to the setting for which the parameters are to be adjusted. b. Power On the instrument if not already done. c. Open the instrument case to access the switchboard. d. Set the function switch to the desired setting. e. Press the Enter key to display the current data with the right digit flashing. f. Use the Up button to toggle change (increasing) the setting and the Left button to change the next digit to the left (or toggle digits leftward to the first again). g. Press Enter to lock the setting. h. To lock out further settings (if desired), remove the switchboard.

Data Port Connection Located on switchboard inside instrument case
Optional software for resetting programmable features via PC All can be manually set using switchboard DATA PORT CONNECTION An RS-232 port is on the switchboard for data transfer.

Troubleshooting System diagnostics Component replacement Calibration Warranty information ADVANCED MAINTENANCE OVERVIEW These procedures will be addressed on the next several slides.

Troubleshooting Failure Possible corrective action
1) Does not power up (display blank) 2) Probe does not operate with check source—no change in reading 3) Display reading not correct with probe—background too high Possible corrective action Replace battery; check battery polarity; replace instrument Check probe is connected; change to other probe and recheck; replace probe; replace cord Hold probe away from check source; move to different location (background too high); return for calibration; replace probe; replace cord TROUBLESHOOTING The troubleshooting table is compiled from the troubleshooting guide in the User’s Manual. There are few corrective actions that the user can do if the instrument fails.

Troubleshooting (cont.)
Failure 4) Display reading not correct with probe—background zero or too low 5) Switch function does not operate properly 6) Instrument frequently alarms Possible corrective action Set to Ratemeter mode; check probe with check source; return for calibration; replace probe; replace cord Power Off/On and recheck; continue use if possible; replace instrument if it cannot be used safely Move to lower radiation area; reset alarm set point higher (advanced procedures) TROUBLESHOOTING (continued)

System Diagnostics Settings for main board, switch board, and display board are listed in User’s Manual Under CAL cover are additional setting switches Primarily used during calibration Includes alarm setting for detector overload Keep cover in place to avoid inadvertent adjustment Probe testing procedures in probe manuals SYSTEM DIAGNOSTICS As stated earlier, the function switch settings and calibration adjustments can be done for setting parameters or checking system operations. This is recommended for factory authorized maintenance technicians. Likewise, the probe testing procedures are listed in the operator’s guide for each probe, but these require specialized testing and equipment.

Component Replacement
Not recommended without factory authorized maintenance assistance Instrument repair parts list and wiring diagrams are in User’s Manual Probe internal component replacement procedures and parts lists are in probe manuals COMPONENT REPLACEMENT Although the user manuals for the meter and the probes display complete wiring diagrams and repair parts lists, it is not recommended for anyone other than a factory authorized technical repair person to replace or repair internal components.

Calibration Frequency: Annual Procedure for sending in
Includes instrument and both probes Procedure for sending in Track due date—no surprises Schedule to keep some instruments on hand Send complete kit to service provider Track shipment until returned Cost estimate (2006): TBD CALIBRATION Calibration is recommended annually by the vendor, but may be more or less frequent according to local requirements. Calibration must be done with both probes for each meter. Always check the calibration sticker before use. Procedure for returning the instrument for calibration: a. Track the due dates so there are no surprises. b. Schedule the instruments to prevent having all of them in calibration at the same time. c. Send the instrument in its carry case (or suitable packing for loose instruments and probes) to the address of the technical service provider. Factory address: Ludlum Measurements Inc., Attn: Repair Dept., 501 Oak Street, P.O. Box 810, Sweetwater, TX 79556 d. Track the shipment until it is returned. e. The estimated cost for calibrating one instrument will be quoted by the service provider. f. A service provider local to NYC may be able to coordinate on-site calibration with other Ludlum instruments for a reasonable rate if several instruments are done during the same trip.

Warranty Information 12 month free of defects
Calibrated within specified accuracy on delivery Not covered Replacement of probe components damaged from abuse WARRANTY INFORMATION Warranty information appears in the User’s Manual. The factory warranties the instrument for 12 months. The instrument is calibrated to within specs upon delivery. Damage from dropping the probes is not covered.

Area Radiation Monitor

Prepare for operation Normal operation Alarms BASIC OPERATION REVIEW These topics were covered in the basic course.

Hardware installation Check/set monitor parameters Using the PC software Portable (non-fixed) operation ADVANCED OPERATION OVERVIEW These topics will be covered on the next several slides. They are described in the User’s Manual, but not necessarily required for normal operation.

Hardware Installation
Wall-mounted units: Mount near door; plug in Place “portable unit” near desired area; run extension cord Run cable to remote: 20 ft. distant Select computer for software installation Have IT personnel install HARDWARE INSTALLATION Depending of the optional equipment used and the desired configuration, there are several methods of installing the hardware. a. For wall-mounted units, locate the monitor on a wall near the entryway that is to be monitored. Plug into the nearest outlet. b. For mobile units, place the monitor on a firm surface in a location where it is protected from weather and not likely to be knocked over. Run an extension cord to the monitor as needed. c. Run the cable from the monitor to the remote, up to 20 feet away. This may be permanent for fixed units. d. Select which PC will be used to monitor the instrument and have the computer software installed by the facility IT personnel. They should manage the license.

Calibration Controls CALIBRATION CONTROLS
Under the cover on the face of the area monitor are several controls used to set instrument parameters.

Check/Set Monitor Parameters
Check: hold button to display data Set parameters Cal Mode switch On to make adjustments Adjust alarm set points Hold High (or Low) Alarm, set with Up/Down Do not change Cal Constant or Dead Time Cal Mode switch Off CHECK/SET MONITOR PARAMETERS Set up the instrument once and do not reset unless needed. The data for each button can be checked by holding the button and reading the display. Procedures to reset data points: a. Open the control cover to access the switches. b. Set the top (Cal Mode) dip switch to the right (On). This must be done before making any adjustments. c. To set an alarm point, hold the High Alarm or Low Alarm button (whichever is desired to be reset) to display the alarm set point, and use the Up or Down arrow buttons to adjust the number. d. The calibration constant and dead time can be reset the same way. It is recommended to change these only during calibration. These values can be checked by pressing the Cal Const or Dead Time button without changing the data. e. Remember to set the Cal Mode switch Off (left) and replace the switch cover when done to prevent changes.

Set Dip Switch Parameters
Cal mode (for adjustments) Off or On Latch (High alarm) No or Yes Range (display units) 0.1 or 1 Single beep (Low and High alarms) No or Yes SET DIP SWITCH PARAMETERS Set the dip switches as desired. They can be set independently of the other parameters while the switch cover is open. a. Cal Mode, if On (right) will allow setting other electronic parameters as seen before. Keep this switch Off (left) for normal operations to prevent accidental resetting of any parameters. b. Latch, if on (right), will latch the High Alarm only. A latched alarm will not reset automatically and must be reset by pressing the High Alarm button when the alarm is sounding, even if the dose rate falls below the alarm set point. c. Range will display the digits in whole units (right) or 0.1 units (left). The range will likewise be changed between and μR/h. d. Single beep, if on (right), will limit the audio to one beep instead of continuous beeping during an alarm.

Equipment Application
Fixed site monitor Mounted on wall at fixed location Portable monitor Disconnect and dismount Place near alternate temporary location Plastic bag to protect from weather and decon activity Run extension cord for power, no remote Option to monitor with network EQUIPMENT APPLICATION The primary use as a fixed site monitor was addressed in the Basic Course. You can use the instrument as a portable monitor during an emergency, such as a portal near the decon site. a. Power off and disconnect the instrument to be moved. Then open the case if needed to dismount the instrument from the wall . b. While used in a portable capacity, it should be placed in a temporary location and used as a fixed site monitor in the same manner. It is not intended to be used on the move. c. Cover with a plastic bag to protect the instrument from water, including spray from the decon site. d. Make a small hole in the bag as needed to run the electrical cord out to an extension cord. Do not run the instrument on battery alone, as the battery will run down. e. The remote display is not needed, but the Ethernet cable may, as an option, be connected for real-time monitoring of the instrument status.

Using the PC Software Use PC to Set up monitor to interface with PC
Monitor real time readings Record alarms and status data USING THE PC SOFTWARE The network software is an optional piece of equipment, normally procured as one per organization rather than one per instrument. a. The monitor requires the use of an Ethernet cable (not provided) to interface with the PC through the software. Have the hospital IT personnel load the software and configure the PC to prevent any licensing or hardware problems. b. Use the PC to set the instrument parameters and monitor the real time data stream or to download data from previous alarms.

Initializing Setup Install software to PC
Establish IP address Install monitor and remote hardware Connect Ethernet cable Set up each monitor ID # and UDP Start software Main screen appears Finish set up for each monitor in user preferences INITIALIZING SETUP There are several steps to setting up each monitor to the PC network. a. Install the software in the designated PC. Have the IT technician establish the IP address as needed to properly connect and interface with the network. b. Install the monitor and its hardware, including the Ethernet cable. c. Set up the monitor’s individualized ID number and (User Datagram Protocol) UDP number on the monitor. This is described on the next slide. d. Finish the setup by transferring this information to the PC.

Monitor Setup Check with network administrator
Procedure to set ID and UDP on monitor Open cal cover, set Cal Mode switch On Hold Low Alarm + High Alarm, set ID with Up/Down Hold Low Alarm + Cal Const, set UDP with Up/Down Fill in configuration sheet in User’s Guide Set Cal Mode switch Off, close cover MONITOR SETUP Check with the IT personnel or network administrator for which UDP numbers to use. Assign a unique ID number from 1 to 155 for each monitor. Procedure to set each on the monitor: a. Open the cover to the switches and set the Cal Mode switch On. b. Set ID number. Hold the Low Alarm and High Alarm buttons together to display the ID number. Adjust it with the Up or Down arrow buttons. c. Set UDP number. Hold the Low Alarm and Cal Const buttons to display the UDP number. Adjust it with the Up or Down arrow buttons. d. Set the Cal Mode switch to Off and replace the switch cover.

Start up the software and the Main window will appear. The main window shows the status of every channel that has bees activated. In this example, channels 25 and 50 are active.

Complete Monitor Setup
Procedure Main window; preferences Preferences window; Online tab Online tab; check channels to become active Preferences window; Channel Designation tab Fill in ID number for each monitor Apply; save Verify that software receives monitor data COMPLETE MONITOR SETUP While the software is open, complete the initial setup of each monitor in the system. Procedure follows. The next two slides will illustrate the associated windows. a. From the Main window, click the Preferences button on the left side to open the Preferences window. This window has several tabs for designating options. b. On the Online tab, check the box next to each channel that will become activated in the system. c. On the Channel Designation tab, fill in the ID number of each monitor, one per channel, as previously designated in the monitor. At the bottom of this tab, fill in the UDP number provided by the IT personnel. Apply and save the data. d. Verify that the system software is receiving the data from the monitor on the Main window.

Preferences Window PREFERENCES WINDOW
This is the Online tab, with boxes 25 and 50 checked.

Preferences Window (cont.)
PREFERENCES WINDOW (continued) This is the Channel Designation tab with the ID numbers and UDP number filled in. Click Apply at the bottom and Save on the Main window to save the changes.

Quick Alert Window QUICK ALERT WINDOW
During an alarm condition, this window will open on the screen, showing the status and alarm data. It can also be used to track previous alarms. Click OK to acknowledge the alarm and close the window.

Status Window STATUS WINDOW
On the Main window, click the Status button to open the Daily Status window. This window is used to view previously logged data. The View Log button will view the entire log, or select a day and click Query to read the data for that day only. The View Images button will view camera images for systems with cameras.

Map Edit Window MAP EDIT WINDOW
On the Main window, click Map View to toggle between the normal (chart) view of channels to a view where the monitor channels are positioned on a map, like the one shown here. Initially, this view is blank until a map is built into the system. In order to edit the map view, open this Map Edit window through the Customization tab on the Preferences window. In this example, someone scanned in a building diagram and placed icons to show where the area monitors were located. Using this feature is entirely optional and does not affect alarm performance.

Graph View Window GRAPH VIEW WINDOW
On the Main window, click Graph to open the Graph View window. This window shows live or logged data from any selected monitor.

After Operating Applies to temporary use only Power Off when done
Verify battery charged Disconnect and store components together if used in mobile site AFTER OPERATING After done with the instrument, there are several procedures to follow if using the equipment as a temporary site monitor. a. Power down. Set the power switch to Off. b. Verify that the battery is charged (no Low Battery alarms) before unplugging from the power outlet. c. If storing the instrument, disconnect the components and store together when no longer needed at the mobile location, or relocate and set up for continued operation at a new site.

Calibration Warranty information ADVANCED MAINTENANCE OVERVIEW These procedures will be addressed on the next several slides.

Calibration Frequency: Annual Procedure for sending in
Track due date: No surprises Send complete kit to service provider Track shipment until returned On site calibration available Cost estimate (2006): TBD CALIBRATION Calibration is recommended annually by the vendor, but may be more or less frequent according to local requirements. Check the calibration sticker regularly. Procedure for returning the instrument for calibration: a. Track the due dates so there are no surprises. Schedule the instruments to prevent having all of them in calibration at the same time. c. Send the instrument in a box to the address of the technical service provider. Factory address: Ludlum Measurements Inc., Attn: Repair Dept., 501 Oak Street, P.O. Box 810, Sweetwater, TX 79556 d. Track the shipment until it is returned. e. The estimated cost for calibrating one instrument will be quoted by the service provider. f. A service provider local to NYC may be able to coordinate on-site calibration with other Ludlum instruments for a reasonable rate if several instruments are done during the same trip.

Warranty Information 12 month free of defects
Calibrated within specified accuracy on delivery WARRANTY INFORMATION Warranty information appears in the User’s Manual. The factory warranties the instrument for 12 months. The instrument is calibrated to within specs upon delivery.

Competency Check For each instrument:
Prepare for normal operation Operate advanced features Shut down For dosimeters: Explain how software is used For survey meter: Explain how to set parameters For area monitor: Explain network procedures COMPETENCY CHECK Work together in teams of two. Take one set of handouts and place both names in the space provided on each page. Use the appropriate checklist to perform or explain each step of the following procedures for each instrument: Prepare the instrument for normal operation. Perform selected advanced operating procedures. As time allows, practice with normal operating procedures. Shut down the instrument and prepare it for short-term storage. Be prepared to explain how the software or internal switches are used to set parameters. Pass the instrument to the next team to repeat the procedures with the next instrument and check sheet until all four are completed. Return all check sheets to the instructor.

Advanced Procedures Summary
Basic familiarity with the equipment required Advanced operating procedures Beyond operator maintenance ADVANCED PROCEDURES SUMMARY Have sufficient understanding of both the basic operating procedures and enough of the advanced procedures to show someone else how to operate each instrument.

Radiological Equipment - Advanced

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