User Manual - Nuclear Australia
Contents
1. Business Park Billingham Cleveland TS23 4AZ UK Phone 44 0 1642 375171 Fax 44 0 1642 562819 Email radiation monitors tracerco com Website www tracerco com monitors Tracerco 2 wy TracercoMonitor MN1008 Rev A2. available settings for the alarm are as follows a Accumulated dose function 0 to 100uSv in steps of 1uSv 100 to 400uSv in steps of 10uSv Maximum alarm trip level 400uSv b Dose equivalent rate function 0 to 50uSv h in steps of 1uSv h 50 to 100uSv h in steps of 5uSv h Maximum alarm trip level 100uSv h To set the dose rate alarm level the speaker should be held for 3 seconds whilst in dose rate mode To set the dose rate alarm level the same procedure should be followed whilst in dose mode In both cases the alarm can be turned on A ON or off A OFF by pressing MODE then SELECT RESET If alarm on is selected the alarm level can be increased by pressing the PEAK button and decreased by pressing the MODE button SELECT RESET should be pressed to select and apply the alarm level and return to the readings display 2 6 6 Sound Options If the speaker symbol i is not showing on the screen both the clicking sounder and the alarm are off Whenever you switch on the monitor it will keep the previous alarm trip level and speaker setting 3 Maintenance 3 1 Replacing the Battery The condition of the battery is constantly monitored The battery will last for approximately 100 hours of use When the monitor shows a LO BATT warning on the screen under normal circumstances the battery should last for another four hours of use When the battery is too low for reliable use the screen will go blank There may be
3. Tracerco Providing Insight Onsite TRACERCO X Ray Monitor USER MANUAL e Monitors amp Servicing Contents Ji 2 ANI E e About your X Ray MONItOr nici accesa ceace ad Dea ede ches da repara Dea Operational Features nice ce ete iie lare 2 1 AN LE ICON citea OO 2 2 SEE eM ETT TT 23 BE IG RR AR E 8 Ea 24 ARMS 25 IMS MISS Sal ES iaia lalla lata 2 6 MEASUMAGRAGIANOM ia asa atata aaa aa Mone ap Mite phat lod 201 Bai Chart DISDIBV sss itas ineat Al ia a 20 2 imencsbay retata dea iius utt aaa ua aav barul a 216 3 Aceumiuilatedi adiatian DOSE cientes itin taia 264 Peak Radiation Dose Hale sicario rioni taranta 2D Setting Alam Level 25468 soOHDel ODIO SE cascata tat RI M al late d i Maintenance 3 1 Replacing ihe Balerna 32 General Maintenance e 3 3 e lle cuore Technical Specification ila Hints for Radiation Dose Rate Monitoring GOnNtaci IS det aria iaia Tracerco Products and Services i 1 About Your T406 X Ray Monitor The T406 is a portable battery operated radiation monitor capable of measuring X and gamma radiation in the energy range of 17keV to 1332keV The monitor reflects Tracerco s extensive experience in industrial and environmental radiation measurement by combining novel design features with advances in technology to make the monitor versatile accurate and easy to use The radiation detection capabi
4. ents where radiation levels are totally unknown having the speaker on reduces the potential for exposure if your attention is taken away from the monitor screen It also provides a warning to other workers in the area Always remember the time and distance rules to keep your personal exposure to a minimum The accumulated dose and peak value options should reinforce safe working practices Before you use the monitor check that it is working properly by placing it near a known test source or make sure that sensible background radiation values are being displayed 6 Contact us at one of our Global Centres UK Global Headquarters USA Tel 44 1642 375171 Tel 1 281 291 7769 Email radiation monitors tracerco com Email tracerco tracerco com Malaysia Australia Tel 603 7803 4622 Tel 61 8 9209 3905 Email tracerco asia tracerco com Email tracerco tracerco com Please visit the Tracerco website www tracerco com for details of other regional office locations 7 Tracerco Products and Services Tracerco manufacture a wide range of Our experienced technicians can also intrinsically safe and standard radiation provide an annual Hazardous Area monitoring products Equipment Inspection as described Tracerco can provide a professional rapid Ey JEG ODDS MA turnaround calibration and repair service as well as offering a hire service for a range of monitors For more details contact Tracerco Unit 2 3 Belasis Court Belasis Hall
5. he backlight on The backlight will go off when you take your finger off the button 2 4 Alarm Settings The monitor is equipped with an alarm which you can set to go off when a certain level of radiation within limits is detected The alarm provides a continuous high frequency tone whenever the radiation dose level goes above the value you set A safety feature of the monitor is that the alarm cannot be muted when it is switched on When the alarm is on a flashing I is displayed on the screen You can turn the alarm off For information on setting the alarm see 2 6 5 on page 6 2 5 Status Messages In areas where there is extremely low background radioactivity the monitor is programmed to recognise the following situations 1 No recorded counts over a period of 20 seconds the monitor will display a lo BGnd message on the screen 2 No recorded counts over a period of 40 seconds the monitor will recognise a detector problem and will display an ERR message on the screen Error message Comments Action ERRI GM Tube Failure Return to Tracerco for further diagnosis and repair ERR2 Undefined error has occurred Return to Tracerco for further diagnosis and repair LO BATT There is approximately 4 hours of Replace battery See battery life remaining section 3 1 of the manual for further battery information Contact Tracerco for assistance OUEr Radiation levels have exceeded Remove T406 to lower dose the w
6. isplay Pressing the button allows you to switch between the digital read out of dose rate in uSv h and the accumulated dose in uSv You can end the accumulation by simply pressing the green SELECT RESET button when in the accumulated uSv mode This will reset the dose to zero and a new accumulation will start The accumulated dose function allows you to use the monitor as an integrated dosimeter and is useful in carrying out assessments of potential dose uptake by individuals during the performance of certain operations or establishing a time integrated dose from which average dose rate values can be calculated This is particularly useful where dose rates are extremely low and variable with time 2 6 4 Peak Radiation Dose Rate The monitor can record the highest dose rate the peak rate it has been exposed to since it was switched on Switching off the monitor clears the memory of the previous peak rate Pressing the green PEAK button while in the dose rate uSv h mode will show the peak value Pressing the button again will return the display to normal reading mode Pressing the SELECT RESET button during this peak display will reset the peak rate to zero reading allowing you to take a new peak reading 2 6 5 Setting Alarm Level The T406 is equipped with an alarm which can be set by the operator The alarm sound is a continuous high pitched note You can set the alarm trip level in either rate values or as accumulated dose The
7. ital numeric display 0 100 mRem h Accumulated dose range Digital numeric display 0 1000 uSv USA version Digital numeric display 0 100 mRem Peak radiation Digital numeric display 0 1000 uSv h dose range USA version Digital numeric display 0 100 mRem h Measurement Can be supplied with either mRem h or uSv h display Over range Bar graph display will read full scale response Digital numeric display will show OUEr OUEr Case materials Robust chemical resistant polymers Variation with Less that 296 battery Voltage Battery life 100 hours typically with background radiation Low battery indication Displays at approximately 4 hours available life left background radiation levels Battery Standard 9V PP3 battery Ingress protection rating Rated IP65 dust tight and will withstand water jets Humidity range 0 to 95 Weight 600 grammes approx Variation with temperature Less than 5 over temperature range 10 C to 40 C 14 F to 104 F Standard compliance The monitor meets the following EU Directives 2004 108 EC Electromagnetic Compatibility Directive 5 Hints for Radiation Dose Rate Monitoring The radiation detector is in the front face of the instrument Hold the monitor as far as comfortably possible in front of you with the head of the monitor pointing towards the potential source of radiation When monitoring environm
8. lity is based on a special thin window Geiger Muller GM tube The monitor case has been specifically designed to protect the GM detector without reducing the sensitivity to low energy X rays It is designed to be lightweight but strong and comfortable when used over long periods The outer protective case is made from a high quality material that is robust and resistant to most chemicals The monitor is highly tolerant to humidity and wet conditions and its design is based on the award winning range of TRACERCO radiation monitors 2 Operational Features 2 1 Switch On You switch the monitor on by pressing the red D switch Press once for on and a second time to turn the monitor off If there are no significant local sources of radiation the monitor will register background which will vary with the environment but would typically be expected to be below 0 1uSv h Please note that there may be a slight delay between switching off the monitor and the screen becoming blank 2 2 Speaker Pressing the grey IC switch activates the internal speaker The speaker provides a clicking sound at a rate that is proportional to radiation intensity You can turn the speaker off by pressing the i switch again When the speaker is on the IC symbol will be shown on the screen Using the speaker reduces the life of the battery 2 3 Backlight The monitor has a backlight which you can use in dark conditions Press the grey xi to turn t
9. orking range 1mSv h rate of the T406 2 6 Measuring Radiation Switching on the monitor will display all available segments for 2 seconds The monitor then enters normal operation All previous information on peak radiation dose rate and accumulated radiation dose will have been re set to zero following the power down 2 6 1 Bar Chart Display The monitor provides a bar chart display which you may prefer to the digital numeric display for providing an improved visual indication of dose equivalent rate trends in the region of 0 to 1000uSv h If the monitor is exposed to radiation higher than 1000uSv h the barchart display will stay at full scale until the radiation detected drops to below 1000uSv h 2 6 2 Numeric Display The display provides a continuous numeric display of dose equivalent rates from 0 to 1000 uSv h If radiation readings go above 1000uSv h on the digital numeric scale the display will show an OVER warning In this situation the monitor cannot provide a measurement of radiation dose exposure If the level of radiation drops below 1000uSv h the monitor will return to normal operation 2 6 3 Accumulated Radiation Dose An important feature of the monitor is its ability to record an accumulated dose Once the monitor has been switched on the accumulated dose will be continuously updated in the monitors memory The yellow mode button allows you to view the accumulated dose in uSv on the digital d
10. times when the LO BATT warning appears but when the monitor has been switched off for a short period and then switched back on the warning does not appear This is relatively rare and usually happens after the monitor has been used in a high radiation environment for a significant period of time The battery compartment is on the back of the case The recommended batteries are alkaline manganese MN1604 MX1604 To remove the battery cover the single retaining screw must be unscrewed After changing the battery take care not to over tighten the cover screw 3 2 General Maintenance The case is designed to keep the build up of contaminants to a minimum and is easy to clean with mild detergents Solvents must not be used 3 3 Calibration It is best to practice that all radiation monitors are inspected and tested once a year This includes carrying out performance checks and where appropriate recalibrating the monitor We check and calibrate our radiation monitors immediately before we send them to our customers Please refer to the Contact Us section to find your nearest Tracerco Calibration and Repair Facility 4 Technical Specification Radiation detected X Rays and gamma rays in range of 17 keV to 1332 keV Detector Single thin window energy compensated Geiger Muller tube Dose rate range Bar graph display 0 1000 uSv h Digital numeric display 0 1000 uSv h USA version Bar graph display 0 100 mRem h Dig
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