LUDLUM MODEL 3000 SURVEY METER USER`S MANUAL
Contents
1. Bq disintegration rate averaged over the count time R h Sv h exposure ot dose rate averaged over the count time R Sv integrated exposure or dose over the count time Audio clicks are disabled in COUNT mode Ludlum Measurements Inc Page 2 8 December 2015 Model 3000 Survey meter Ludlum Measurements Inc Users Manual Section 2 In COUNT mode operation depends on the current state of the Count Timer When the Count Timer is Ready The display will show the Count Time Pressing the UNITS button will switch between the Primary and Secondary Count Units The newly selected Count Units will be displayed for approximately one second and the display will then return to the Count Timer Pressing the ON ACK button starts the Count Timer If other operational modes are available pressing the MODE button will move to the next available operational mode When the Count Timer is active The display will show the Count Time remaining Pressing the ON ACK button will reset the Count Timer The UNITS button is disabled If an alarm condition occurs the display will alternate between the Count Time remaining and the Count Rate The ALARM display indicator will turn on Alarms ate latching in COUNT mode If other operational modes are available pressing the MODE button will cancel the current Count Timer and move to the next available operational mode Page 2 9 December 2015 Model 3000 Survey meter Ludlum Measu2. and MODE to adjust the value Available values ate Number of Decimal Places 0 1 or 2 Minimum Units See List Below cpm kcpm cps keps dpm kBg wR h mR h R h uSv h mSv h Sv h Secondary Units RATE MAX Maximum Display Default 9 99 R h Use ON ACK to select the value to adjust and MODE to adjust the value If the Secondary Units is off this parameter will be skipped Units will be the same as selected earlier with Secondary Units Available values are Ones Place 0 9 Tens Place 0 9 Hundreds Place 0 9 Number of Decimal Places 0 1 ot 2 Range k on or off cpm cps dpm Bg u m ot none for R h and Sv h Secondary Units RATE MAX Mode Alarm Point Default 000 Use ON ACK to select the value to adjust and MODE to adjust the value If the Secondary Units is off this parameter will be skipped Otherwise units will be the same as selected earlier with Secondary Units The ALARM LCD Segment will be on to indicate an Alarm parameter Set this Alarm Point to 000 to disable Available values are Ones Place 0 9 Tens Place 0 9 Hundreds Place 0 9 Number of Decimal Places 0 1 or 2 Range k on or off cpm cps dpm Bq u m or none for R h and Sv h Note If the Secondary Units has changed to a value other than that used to previously set this Alarm Point the Alarm Point will be reset to 000 Ludlum Measurements Inc Page 4 11 De
3. on each page Ludlum Measurements Inc Page 4 4 December 2015 Model 3000 Survey meter User s Manual Section 4 Model 3000 List of Parameters in order Page 1 P 1 e Calibration Constant Mantissa e Calibration Constant Exponent e Dead Time Correction e Efficiency e High Voltage Setting e Pulse Threshold e Detector Current Overload Threshold e 055 of Count Alarm Time Page 2 P 2 e Primary Units and Minimum Display e Primary Units Maximum Display e Primary Units RATE MAX Mode Alarm Point e Primary COUNT Units and Minimum Display e Primary COUNT Units Alarm Point Page 3 P 3 e Secondary Units and Minimum Display e Secondary Units Maximum Display e Secondary Units RATE MAX Mode Alarm Point e Secondary COUNT Units and Minimum Display e Secondary COUNT Units Alarm Point Page 4 P 4 e Response Time e Auto Response Rate e Operational Modes e Count Time e Auto Shutdown Time e Backlight Threshold e Sigma Audio Ludlum Measurements Inc Page 4 5 December 2015 Model 3000 Survey meter User s Manual Section 4 Setup Parameter Adjustment Use the MODE button to adjust the value for the selected item When the appropriate value is selected for that item press the ON ACK button to move to the next item When the desired value is displayed press the UNITS button to advance to the next parameter The graph will display the total number of parameters available on the current Setup Page and the current parameters position will be bl
4. 44 9 85 usec 35 usec 200e 06 Model 44 38 100 psec 35 usec 709e 05 Efficiency Default 15 0 Use ON ACK to select the value to adjust and MODE to adjust the value Available values are Ones Place 0 9 Tens Place 0 9 Hundreds Place 0 9 Number of Decimal Places 0 or 1 Normally the efficiency is used on a per detector basis or 4pi basis 1 e the efficiency of the detector is calculated by dividing the count rate recetved from a source by the total disintegration rate of the source When either dpm or Bq units are chosen the use of the 4pi efficiency allows the display of the source size or activity on the Model 3000 display But if the user desires to have the Model 3000 show results in terms of dpm 100 cm the user could manipulate the efficiency to produce this result by multiplying the efficiency times the ratio of the detector area to 100 cm For example using a detector with an area of 15 cm if we start with 10 efficiency to measure in dpm then the parameter could be changed to 1 5 to measure in dpm 100 cm Or likewise for Bq cm efficiency could be calculated as efficiency count rate disintegration rate detector area in cm For example with the same detector as above with an area of 15 cm and starting with an efficiency value of 15 then the parameter could be changed to 225 to measure in Bg cm Ludlum Measurements Inc Page 4 7 December 2015 Model 3000 Survey m
5. DA Lt LG LI IL k dpm k cpm mSv h mR h Bq cps uSv h uR h The instrument then displays the firmware version Please refer to Figure 2 below Figure 2 Firmware version display The instrument will then move to normal operation displaying the current rate for the Primary units default cpm If the Sigma Audio option is selected the unit will display a countdown from 8 to 1 in seconds as the unit measures background radiation levels The user may select the Secondary units default mR h by pressing the Units button Page 2 2 December 2015 Model 3000 Survey meter Ludlum Measurements Inc Users Manual Section 2 Ensure that the low battery indicator is not present If the low battery indicator is present replace the batteries as soon as possible Should the instrument detect a battery voltage that is high enough to power on but too low to safely operate the display will blank and the low battery icon will flash Normal operation will not be available until the batteries have been replaced Under extreme low battery conditions be awate that the unit may not even turn on or may turn itself off abruptly A reference reading with a check source 1 Ci 37 kBg of Cs for example should be obtained at the time the instrument is received in the field Small check sources of radiation are available from Ludlum Measurements While exempt from many regulations because of their small size these sourc
6. Minimum Display Default 0 cpm Use ON ACK to select the value to adjust and MODE to adjust the value Available values Number of Decimal Places 0 1 ot 2 Minimum Units See List Below cpm cps keps dpm kBq wR h mR h R h uSv h mSv h Sv h Primary Units RATE MAX Maximum Display Default 999 kcpm Use ON ACK to select the value to adjust and MODE to adjust the value Units will be the same as selected earlier with Primary Units Available values are Ones Place 0 9 Tens Place 0 9 Hundreds Place 0 9 Number of Decimal Places 0 1 or 2 Range k on or off cpm cps dpm Bq u m or none for R h and Sv h Primary Units RATE MAX Mode Alarm Point Default 000 Use ON ACK to select the value to adjust and MODE to adjust the value Units will be the same as selected earlier with Primary Units The ALARM LCD Segment will be on to indicate an Alarm parameter Set this Alarm Point to 000 to disable Available values are Ones Place 0 9 Tens Place 0 9 Hundreds Place 0 9 Number of Decimal Places 0 1 or 2 Range k on or off cpm cps dpm Bq u m or none for R h and Sv h Note If the Primary Units has changed to a value other than that used to previously set this Alarm Point the Alarm Point will be reset to 000 Ludlum Measurements Inc Page 4 9 December 2015 Model 3000 Survey meter User s Manual Section 4 P
7. or Auto Response Rate FAST or SLOW Audio greater than 75 dB at 0 6 m 2 ft approximately 4 5 kHz Power four alkaline AA batteries Battery Life approximately 750 hours of operation as low as 100 hours with backlight configured for continuous on 16 hour low battery warning Maximum Current 35 mAdc Construction high impact plastic with water resistant rubber seals and separate battery compartment Temperature Range 20 to 50 C 5 to 122 F may be certified for operation from 40 to 65 C 40 to 150 F Environmental Rating NEMA National Electrical Manufacturers Association rating of 4x or IP Ingress Protection rating of 65 Size 165x 11 4x 21 6 cm 65x 45x 8 5 in Hx W x L Weight 0 9 kg 2 0 Ib Page 3 2 December 2015 Model 3000 Survey meter Users Manual Section 4 Setup Mode Warning Only advanced users or administrators should consider changing any of the parameters in the following section Incorrect settings could jeopardize the safety of users depending on this instrument Setup Overview Your instrument has been shipped from Ludlum Measurements only after passing electronic checkout a 24 hour burn in process and a careful calibration process Calibration papers are supplied with each instrument shipped from Ludlum Measurements Recalibration should be accomplished after maintenance or adjustments have been performed on the instrument Recalibration is not normally required fol
8. the numeric portion of the display shows P 1 indicating the first setup page is selected If you simply wish to view the parameters select the desired Setup Page using the MODE button Press the UNITS button to advance through the parameters available on the selected Setup Page To return to normal operation advance back to the Setup Page selection and hold the UNITS button for approximately 5 seconds SETUP PROTECT The Model 3000 parameters can be protected from unauthorized changes via the internal switch located on the Model 3000 circuit board To change the switch open the battery compartment and remove the batteries from the Model 3000 Next loosen the six captive pan head screws that fasten the bottom cover Gently remove the bottom cover of the instrument The DIP dual in line position switch should now be visible in the upper left hand corner of the circuit board To protect the Model 3000 from changes in Setup mode slide DIP Switch 2 the rightmost switch to the ON forward position If DIP Switch 2 is in the OFF back position changes are allowed in Setup mode Once the DIP Switch is set as desired gently replace the back cover and the six pan head screws Install the batteries and replace the battery cover Note that with the DIP Switch 2 in the ON position Setup mode may be entered and parameters viewed but changes cannot be made DISPLAY BACKLIGHT Continuous On The Model 3000 display backlight can be set t
9. the product is not to be mixed with unsorted municipal waste when discarding Each material must be separated On the Model 3000 the symbol will be placed on the serial number label located on the side of the instrument The symbol appears as such Ludlum Measurements Inc Page 7 1 December 2015 Model 3000 Survey meter Users Manual Section8 Standard Parts List Part Description Part Model 3000 Digital Survey Meter 48 4035 Model 3000 Main Board 5498 440 LCD 82 mm x 61 64 mm 7498 417 Unimorph with Harness 8498 542 Model 3000 Bezel Assembly 4498 412 Main Keypad Membrane Switch 7498 414 Battery Holder Modified 7498 458 Model 3000 Headphone Option 4498 555 Ludlum Measurements Inc Page 8 1 December 2015
10. LUDLUM MODEL 3000 SURVEY METER USER S MANUAL December 2015 LUDLUM MODEL 3000 SURVEY METER USER S MANUAL December 2015 LUDLUM MEASUREMENTS INC MI 501 OAK STREET PO BOX 810 SWEETWATER TEXAS 79556 325 235 5494 FAX 325 235 4672 REVISION HISTORY DESCRIPTION DATE VALID 5 26 13 ADD NOTES 1 25 14 ADD CABLE CLAMP TIR powkeina C MP d DWG NUM 4498 409 am SCALE 1 1 TITLE M 3000 FRONT PANEL DA LUDLUM measurements SERIES SHEET CI Soccer Texas roseo 498 409K Model 3000 Survey meter Introduction Getting Started Unpacking and Repacking Battery Installation Instrument Operational Test Sigma Audio Detector Failure Diagnostic Detector Over Range Detector Overload Instrument Use and Controls RATE Mode Operation MAX Mode Operation COUNT Mode Operation Specifications Setup Mode Setup Overview Default Setup Values Entering Setup Mode Setup Mode Operation Safety Considerations Environmental Conditions for Normal Use Warning Markings and Symbols Cleaning and Maintenance Precautions Revision History Recycling Standard Parts List Users Manual Table of Contents 4 1 4 2 4 3 4 4 5 1 5 1 5 2 Model 3000 Survey meter User s Manual Model 3000 Survey meter User s Manual Section 1 Ludlum Measuremenis Inc Introduction The Model 3000 is an ergonomic lightweight instrument which can be used for radiation survey purposes It features the ability to
11. MAX Mode Operation While in MAX mode the highest detected count rate since the last reset is displayed The word MAX will be displayed when in MAX mode Pressing the UNITS button will switch the displayed value between the Primary and Secondary Units Pressing the AUDIO button will turn the click audio on off When Sigma Audio is enabled pressing the AUDIO button will toggle the Sigma Audio beep on off Under a non alarm condition pressing the ON ACK button will reset the display When Sigma Audio is enabled pressing the ON ACK button will reset the Sigma Audio alarm level If an alarm condition is present pressing the ON ACK button once will acknowledge and turn off the continuous tone alarm audio The click audio will remain as selected under non alarm conditions Pressing the ON ACK button a second time will reset the display and clear the alarm condition Under an alarm condition the ALARM display indicator will remain on Alarms in MAX mode latch with the display If other operational modes ate available pressing the MODE button will move to the next available operational mode Figure 7 MAX mode operation display with ALARM indicator Page 2 7 December 2015 Model 3000 Survey meter Users Manual Section 2 COUNT Mode Operation When entering COUNT Mode from another operational mode the currently selected COUNT Units will be displayed for approximately one second The purpose of COUNT mode i
12. S button is disabled during an active countdown AUDIO button Used to toggle the click audio ON or OFF Click audio defaults to ON when the unit is powered up When Sigma Audio is enabled pressing the AUDIO button will togele the Sigma Audio beep ON and OFF The AUDIO button is disabled during an active countdown MODE button Used to advance between the three operating modes RATE MAX and COUNT Note that MAX and or COUNT mode may be disabled from use by the administrator or calibrator RATE Mode Operation In RATE mode the current count rate will be displayed Pressing the UNITS button will switch the displayed value between the Primary and Secondary Units Pressing the AUDIO button will turn the click audio on off When Sigma Audio is enabled pressing the AUDIO button will togele the Sigma Audio beep on off If an alarm condition is present pressing the ON ACK button will acknowledge and turn off the continuous tone alarm audio Under an alarm condition the ALARM display indicator will remain on Alarms are non latching in mode When Sigma Audio is enabled and an alarm condition is not present pressing the ON ACK button will reset the Sigma Audio alarm level Figure 6 RATE mode display showing typical background radiation rate and the low battery icon GO at lt a jar 1 al cpm Page 2 6 December 2015 Model 3000 Survey meter User s Manual Section 2 Ludlum Measurements Inc
13. an indicator of a light leak possibly caused by a puncture or tear in the detector face If a Maximum Display parameter is set then it is possible for the display to flash the Maximum Display value under this condition Figure 4 Detector Over Range shown for opm will also flash ww ws al ml ml NIN k cpm Page 2 4 December 2015 Model 3000 Survey meter User s Manual Section 2 Ludlum Measurements Inc Detector Overload As another diagnostic test the Model 3000 monitors the supply s detector current A current overload threshold in microamps can be set via Setup Mode A setting of O disables this alarm In general this alarm setting can be used to detect when there is some detector failure a cable failure or a possible high level of radiation When this alarm is triggered the LCD will display OL and an alarm tone will sound Once the detector current goes below the threshold the Model 3000 will return to normal Operation Figure 5 Detector Overload Alarm will also flash Ft Lt bn Instrument Use and Controls With three front panel buttons the Ludlum Model 3000 is simple and easy to use with minimal training required Default operation is RATE mode and the display shows the current count rate using the Primary units Pressing the UNITS button will switch between Primary and Secondary units Pressing the MODE button will switch the instrument to MAX mode which will d
14. cember 2015 Model 3000 Survey meter User s Manual Section 4 Secondary Count Units and Minimum Display Default mR Use ON ACK to select the value to adjust and MODE to adjust the value If the Secondary Units is off this parameter will be skipped Available values are Number of Decimal Places 0 1 ot 2 Minimum Units depend on the selected Primary Units See List Below Secondary Secondary Secondary Count Secondary Count Units Units Units Units Available Available cps cps h uR uR h nR b u kcps c off mR h mR mR h lt TS m R h cpm cpm R h kcpm c off of Bq Bq Sv h uSv h uSv T kBq d soft mSv h mSv mSv h dpm dpm Sv h Sv Sv h kdpm d off off Secondary Count Alarm Point Default 000 Use ON ACK to select the value to adjust and MODE to adjust the value If the Secondary Units is off this parameter will be skipped Otherwise units will be the same as selected earlier with Secondary Count Units The ALARM LCD Segment will be on to indicate an Alarm parameter Set this Alarm Point to 000 to disable Available values ate Ones Place 0 9 Tens Place 0 9 Hundreds Place 0 9 Number of Decimal Places 0 1 or 2 Range k on or off cpm cps dpm Bq u m or none for R h and Sv h Note If the Secondary Count Units has changed to a value other than that used to previously set this Alarm Point the Alarm Point will be reset to 000 Ludlum Measurements Inc Page 4 12 D
15. d by an Instrument Return Form which can be downloaded from the Ludlum website at www ludlums com Find the form by clicking the Support tab and selecting Repair and Calibration from the drop down menu Then choose the appropriate Repair and Calibration division where you will find a link to the form Battery Installation A low battery indicator appears at the top of the LCD when less than 16 hours of battery life remain When this indicator is present follow these steps to replace the four standard batteries Turn the instrument over so that the bottom of the instrument is facing up Use a straight medium sized screwdriver to turn the single screw on the battery cover one quarter turn counter clockwise Release and remove the battery cover Replace four each AA batteries Replace the cover and turn screw one quarter of a turn clockwise to secure Page 2 1 December 2015 Model 3000 Survey meter Ludlum Measurements Inc Users Manual Section 2 Instrument Operational Test Turn the instrument ON by pressing the ON ACK button for about a second and then releasing The instrument should activate all the LCD segments and the audio Observe the device during this time If any LCD segments are missing or audio fails to work the device is in need of repair Please refer to Figure 1 below Figure 1 Startup display for Model 3000 with all LCD segments shown MAX ALARM amp JADA
16. e in count rate from the detector the response time is reduced to 1 second to quickly show the new value Operational Modes Default 0 All modes available Use MODE to adjust the value Available values are 0 RATE MAX and COUNT Modes 1 RATE and MAX Modes only 2 RATE and COUNT Modes only 3 RATE Mode only Page 4 13 December 2015 Model 3000 Survey meter User s Manual Section 4 Ludlum Measurements Inc Count Time Default 1 minute Use ON ACK to select the value to adjust and MODE to adjust the value Setting Count Time to 0 enables continuous count until reset If 9 minutes are selected then the maximum seconds value is 60 otherwise the maximum seconds value is 59 Available values ate Ones Place 0 9 Tens Place 0 6 6 only available if minutes value is 19 Hundreds Place 0 9 Note The UNITS button can be used to advance to the next parameter To send Setup mode and save the current setting press and hold the UNITS button for approximately 5 seconds Auto Shutdown Time Default 0 off Use MODE to adjust the value Setting Auto Shutdown Time to 0 disables Auto Shutdown Available values are Ones Place 0 9 hours Backlight Threshold Default LO most sensitive Use MODE to adjust the value Available values are LO Backlight comes on at a higher ambient light level HI Backlight comes on at a lower ambient light level OFF Disables backlight Sigma Audio D
17. ecember 2015 Model 3000 Survey meter Users Manual Section 4 Setup Page 4 Response Time Default 0 auto Use ON ACK to select the value to be adjusted and MODE to adjust the value Setting the Response Time to a fixed value is useful primarily when performing surveys to a fixed MDA Minimum Detectable Activity level Setting the Response Time to 0 will enable the Auto Response mode for the Model 3000 see the next parameter Available values for the Response Time in seconds Ones Place 0 9 Tens Place 0 6 6 forces max Response Time of 60 Auto Response Rate Default S Use MODE to select Fast E or Slow S When operating in Auto Response mode the Model 3000 will vaty the Response Time based on the Auto Response Rate selected Fast or Slow and the current Count Rate The following table shows the response time for different count rates when these auto response modes are chosen Auto Response Auto Response Count Rate Time Fast Time Slow Seconds Seconds Less than 3 kcpm 50 cps 10 5 21 Between 3 kcpm and 4 kcpm 67 cps 8 4 16 8 Between 4 kcpm and 6 kcpm 100 cps 6 3 12 6 Between 6 kcpm and 12 kcpm 200 cps 4 2 8 4 More than 12 kcpm 2 1 4 2 Ludlum Measurements Inc The Model 3000 also utilizes a Step function in Auto Response mode which enables faster response to a significant increase or decrease in Count Rate When the instrument detects a sudden chang
18. efault OFF Use MODE to adjust the value Available values are ON Sigma Audio Enabled OFF Sigma Audio Disabled Normal Click Audio active Note The Sigma Mode may not work ptoperly until the 8 second background is completed If the 8 second background count is too low the device will continually beep until an acceptable background count rate is obtained Page 4 14 December 2015 Model 3000 Survey meter User s Manual Section 5 A Ludlum Measuremenis Inc Safety Considerations Environmental Conditions for Normal Use Indoor or outdoor use While rain resistant user is cautioned to avoid getting water through detector opening No maximum altitude Temperature range of 40 to 65 C 40 to 150 F Maximum relative humidity of less than 95 non condensing Pollution Degree 3 as defined by IEC 664 Occurs when conductive pollution or dry nonconductive pollution becomes conductive due to condensation This is typical of industrial or construction sites Not certified for use in an explosive atmosphere Warning Markings and Symbols Caution The operator or responsible body is cautioned that the protection provided by the equipment may be impaired if the equipment is used in a manner not specified by Ludlum Measurements Inc The Model 3000 Survey meter is marked with the following symbols CAUTION per ISO 3864 No B 3 1 designates hazardous live voltage and risk of electric sh
19. es are large enough to produce a response on this instrument If this procedure is done routinely with the same radiation source instrument malfunction may be detected when anomalous readings ate observed If at any time the instrument fails to read within 20 of the reference reading when using the same check source it should be sent to a calibration facility for recalibration and or repair Example log reading Check Source _________ Rate ________ Units Once this procedure has been completed the instrument is ready for use Sigma Audio The Ludlum Model 3000 has the standard click audio that is widely used by radiation instruments However it also has a Sigma Audio mode that can be enabled to change the audio sound This mode is useful for scintillation detectors because their high count rate makes the click audio less useful In the sigma audio mode the instrument measures the background radiation alarm for eight seconds on power up and then automatically sets a low threshold rate above the background rate Then the instrument will produce a beep any time that the instrument sees more than this threshold value The user doesn t need to watch the display to find a small increase over background the user can just listen for multiple beeps Thus the unit has an audio alarm that on power up adjusts to just above the current background level and provides a sensitive audio indication to the user Note that this audio alarm can also wo
20. eter User s Manual Section 4 High Voltage Default 900 Volts Use ON ACK to select the value to adjust and MODE to adjust the value Value is in Volts Available values are Ones Place 0 9 Tens Place 0 9 Hundreds Place 0 9 k Multiplier on off Note k multiplier also activates left most decimal point If k multiplier is used Hundreds Place value is limited to 0 and 1 Pulser Threshold Default 35 millivolts Use ON ACK to select the value to adjust and MODE to adjust the value Available values are Ones Place 0 9 Tens Place 0 9 Hundreds Place 0 9 Multiplier m ot leftmost decimal Note multiplier m signifies a value in millivolts If the multiplier is the left most decimal value is in Volts Detector Current Overload Threshold Default 800 microamps Use ON ACK to select the value to adjust and MODE to adjust the value Setting the Detector Current Overload Threshold to 0 disables the Current Overload Alarm Available values are Ones Place 0 9 Tens Place 0 9 Hundreds Place 0 9 Loss of Count Alarm Time Default 60 seconds Use ON ACK to select the value to adjust and MODE to adjust the value Setting the Loss of Count Alarm Time to 0 disables the alarm Value is in seconds Available values are Ones Place 0 9 Tens Place 0 9 Hundreds Place 0 9 Ludlum Measurements Inc Page 4 8 December 2015 Model 3000 Survey meter User s Manual Section 4 Setup Page 2 Primary RATE MAX Units and
21. evels are low The display backlight can also be configured for Continuous On operation RATE and MAX modes can be silent or utilize a click audio the click audio is always silent during COUNT mode A sigma audio mode can be enabled disabling the click audio when scintillator detectors are used and this mode makes it easy for the user to find small increases above the background radiation level In this Page 1 1 December 2015 Model 3000 Survey meter User s Manual Section 1 mode the instrument measures background for 8 seconds after power up and then beeps whenever the rate increases by a small amount Users are freed from watching the numeric value to find something They can simply listen for multiple beeps Setup of the instrument 15 accomplished through the front panel buttons or through software available from Ludlum Measurements The advanced user ot administrator can set e Calibration Constant e Dead Time Correction e Efficiency e High Voltage e Pulse Threshold e Detector Current Overload Threshold e Loss of Count Alarm Time e Primary and Secondary Units e Primary and Secondary Minimum and Maximum Displays e Primary and Secondary Unit Alarm Levels e Primary and Secondary Count Units e Primary and Secondary Count Units Minimum Displays e Primary and Secondary Count Alarm Levels e Response Time e Auto Response Rate Fast or Slow e Available Operational Modes e Count Time e Auto S
22. hutdown Time e Backlight Threshold e Sigma or Click Audio Mode Front panel setup can be disabled via the internal switch on the Model 3000 in order to protect settings from inadvertent changes Ludlum Measurements Inc Page 1 2 December 2015 Model 3000 Survey meter User s Manual Section 1 The unit is operated with four alkaline AA batteries for operation from 20 to 50 C 5 to 122 F Battery life is approximately 750 hours under normal usage A low battery indicator on the LCD warns when less than 16 hours of battery life remain The Model 3000 may optionally be provided with a 1 8 inch stereo headphone jack that would allow for headphone use for audio output It is located to the left of the detector connector Ludlum Measurements Inc Page 1 3 December 2015 Model 3000 Survey meter User s Manual Section 2 Ludlum Measuremenis Inc Getting Started Unpacking and Repacking Remove the calibration certificate and place it in a secure location Remove the instrument and ensure that all of the items listed on the packing list are in the carton Check individual item serial numbers and ensure calibration certificates match between instruments and detectors Gf applicable The Model 3000 serial number is located on a label on the front side of the unit To return an instrument for repair or calibration provide sufficient packing material to prevent damage during shipment Every returned instrument must be accompanie
23. inking When the Model 3000 is in PROTECT mode dipswitch setting the Setup parameters will cycle through to display the set values but changes are not possible The order of Setup parameters for the Model 3000 is as follows Setup Page 1 Calibration Constant Mantissa Default 200 Use ON ACK to select the value to adjust and MODE to adjust the value Value is used with Calibration Constant Exponent to express counts per R Available values are Ones Place 0 9 Tens Place 0 9 Hundreds Place 1 9 Calibration Constant Exponent Default 6 Use ON ACK to select the value to adjust and MODE to adjust the value Value is used with Calibration Constant Mantissa to express counts per R Available values are Ones Place 0 9 Tens Place 0 1 Dead Time Correction Default Varies Use ON ACK to select the value to adjust and MODE to adjust the value Value is in microseconds Should be set to zero when checking instrument with pulser or function generator otherwise higher countrates will result in nonlinearities Available values are Ones Place 0 9 Tens Place 0 9 Hundreds Place 0 9 Ludlum Measurements Inc Page 4 6 December 2015 Model 3000 Survey meter User s Manual Section 4 See the following table for examples with specific detectors Detector Dead Time Calibration Constant Model 44 2 10 usec 5 psec 100e 08 Model 44 6 100 psec 35 usec 709e 05 Model 44 7 262 usec 35 psec 139e 06 Model
24. isplay the highest count rate detected Pressing the MODB button again will switch it to COUNT mode which will display the COUNT timer Note that either or both of the MAX and COUNT modes can be locked out in the setup process See the Model 3000 drawing at the beginning of this manual to reference the following controls ON ACK button Used to power the Model 3000 ON and OFF reset MAX mode statt reset the COUNT Timer and acknowledge audio alarms e Power On Press for approximately one second and release all LCD segments will activate and firmware version will be shown e Power Off Press for approximately five seconds The display will show a 3 2 1 countdown for the final three seconds of shutdown Releasing the ON ACK button during shutdown will return the device to the previous state of operation At completion of the shutdown count the LCD will go blank Page 2 5 December 2015 Model 3000 Survey meter User s Manual Section 2 Ludlum Measurements Inc e Normal Operation Will reset MAX mode display start reset COUNT Timer in COUNT mode and acknowledge silence alarms in all modes of operation When Sigma Audio is enabled pressing the ON ACK button will take a new background reading and update the Sigma Audio level UNITS button Used to switch between Primary and Secondaty units in RATE and MAX modes In COUNT mode the UNITS button will switch between Primary and Secondary units unless a countdown is active The UNIT
25. lowing instrument cleaning or battery replacement Recalibration does not require any special tools or software to perform Ludlum Measurements offers a full service repair and calibration department Not only do we repair and calibrate our own instruments we also service most other manufacturers instruments Calibration procedures are available upon reguest for customers who choose to calibrate their own instruments Note Ludlum Measurements Inc recommends recalibration at Intervals no greater than one yeat assuming that regular operational checks are performed Check the appropriate local state and federal regulations to determine required recalibration intervals Ludlum Measurements Inc Page 4 1 December 2015 Model 3000 Survey meter User s Manual Section 4 Default Setup Values Setup Parameter Notes P1 1 Calibration Constant Mantissa 200 M 200 Counts R P1 2 Calibration Constant Exponent 06 1 intillator 5 1 x Dead Time Correction 0 spen E 0 3 7 P1 4 Efficiency 15 0 Efficiency P1 5 High Voltage Setpoint 900 Volts P1 6 Pulser Threshold 35 millivolts P1 7 Detector Current Overload Threshold 100 microamps P1 8 Loss of Count Alarm Time 60 Seconds P2 1 Primary Units and Minimum Display 000 cpm P2 2 Primary Units Maximum Display 999 kepm P2 3 ad Units RATE MAX Mode Alarm 000 Disabled P2 4 Primary Coun
26. measure radiation in count rate exposure rate dose activity rate integrated exposure dose time averaged rates and scaler counts The Model 3000 utilizes an external radiation detector to detect alpha beta or gamma radiation Three modes of operation are available for the Model 3000 RATE MAX and COUNT RATE mode operation will display the current count exposure ot activity rate MAX mode is used to capture the highest count activity or exposure rate detected useful for finding a peak rate or frisking when the display is not visible Two sets of units primary and secondary for RATE and MAX modes can be chosen from among cps cpm Bq dpm R h or Sv h The user can switch between these two units by simply pressing the Units button COUNT mode allows the user to perform a count for a predetermined time Depending on the count units chosen the result can be a scaler count in counts or disintegrations a time averaged rate cpm dpm Bg cps a time averaged exposure or dose R h Sv h ot an integrated exposure dose or Sv The instrument features a large backlit LCD liguid crystal display a piercing audio warning and easy intuitive use The unit body is made of lightweight but durable plastic It is intended for outdoor use and can resist splashing water The foam grip provides a comfortable ergonomic gtip but may be removed for ease of decontamination The display will be automatically backlit if light l
27. nts false display of lower count rates Zero Protection after a user settable number of seconds of no pulses from detector unit will flash a zero reading and the alarm audio will be triggered LCD Display 3 digit LCD with large 20 mm 0 8 in digits k cps k cpm k dpm 4 m R h u m Sv h low battery indicator MAX ALARM AUDIO Display Range e 0 0 cps to 99 9 kcps e 0 00 cpm to 999 kcpm e 0 00 Bq to 99 9 kBg e 0 00 dpm to 999 kdpm e 0 00 uR h to 999 R h e 0 00 uSv h to 999 Sv h Headphone Jack optional 1 8 inch stereo jack for use with headphones for audio output It is located to the left of the detector connector Backlight built in ambient light sensor automatically activates low power LED backlight unless internal dip switch is set to continuous On will reduce battery life Page 3 1 December 2015 Model 3000 Survey meter User s Manual Section 3 Ludlum Measurements Inc User Controls e ON OFF ACK press to turn ON tap to acknowledge alarms and silence alarm tone press to reset Sigma Audio alarm hold for OFF e MODE alternates between NORMAL count rate MAX captures peak rate and COUNT user selectable preset count time from 0 to 10 minutes e AUDIO turn click audio on off turn Sigma Audio beep on off e UNITS changes the units from count rate cpm cps to dose exposure uSv h mR h or disintegration dpm Bg Response Time user selectable from 1 to 60 seconds
28. o remain on continuously during operation Follow the steps above for SETUP PROTECT but use DIP Switch 1 for display backlight selection Setting DIP Switch 1 to the ON forward position will configure the display backlight to remain on during operation Set DIP Switch 1 to the OFF back position and the display will be backlit only when light levels are low Ludlum Measurements Inc Page 4 3 December 2015 Model 3000 Survey meter User s Manual Section 4 NOTE Setting the display backlight for continuous on operation can result in reduced battery life Setup Mode Operation Setup Page Selection Once the Model 3000 is in Setup mode the Setup Page selection will be displayed on the LCD and the Page number will be blinking indicating it as the selected item The number of available parameters per Setup Page will be displayed using the graph the number of segments indicating the number of parameters Use the MODE button to choose the Setup Page Once the desired Setup Page is shown press the UNITS button to move to the first parameter of that Setup Page Figure 9 Setup Page Selection display showing page 4 Pressing and holding the UNITS button no matter what parameter is shown will first return the user back to the Page Selection screen Ifthe UNITS button is then held down for about 4 seconds the display will exit the Setup Mode The list on the following page lists the four setup pages and the parameters in order
29. ock During normal use internal components ate hazardous live This instrument must be isolated disconnected from the hazardous live voltage before accessing the internal components This symbol appears on the side panel Be sure to take the precautions noted in the next section whenever necessaty Page 5 1 December 2015 Model 3000 Survey meter User s Manual Section 5 Ludlum Measuremenis Inc Caution Verify instrument voltage input rating before connecting to a power converter If the wrong power converter is used the instrument and or power converter could be damaged The crossed out wheelie bin symbol notifies the consumer that the product is not to be mixed with unsorted municipal waste when discarding Each material must be separated The symbol is placed on the label located on the side panel See section 7 Recycling for further information The CE mark is used to identify this instrument as being acceptable for use within the European Union Cleaning and Maintenance Precautions The Model 3000 may be cleaned externally with a damp cloth using only water as the wetting agent Observe the following precautions when cleaning or performing maintenance on the instrument 1 Turn the instrument OFF and remove the batteries 2 Allow the instrument to sit for one minute before cleaning the exterior or accessing any internal components for maintenance Page 5 2 December 2015 Model 3000 Survey me
30. rements Inc Users Manual Section 2 When the Count Timer has finished The display will show either the accumulated total for c d R and Sv or the timed ratemeter average for cps cpm Bq dpm or the average exposute or average dose in R h and Sv h Pressing the UNITS button will switch between the Primary and Secondaty Count Units Under a non alatm condition pressing the ON ACK button will reset the Count Timer If an alarm condition occurred during the Timed Count a continuous audio tone will sound and the ALARM display indicator will turn on Pressing the ON ACK button once will acknowledge and turn off the continuous tone alarm audio Pressing the ON ACK button a second time will clear the alarm condition and reset the Count Timer Alarms ate latching in COUNT mode If other operational modes are available pressing the MODE button will move to the next available operational mode Figure 8 COUNT mode operation showing COUNT Timer of 5 minutes 30 seconds Page 2 10 December 2015 Model 3000 Survey meter User s Manual Section 3 Ludlum Measuremenis Inc Specifications Detector may be Geiger Mueller GM scintillator or proportional HV Range 400 1500 Vdc Threshold Range 4 100 mVdc Resolving Time approximately 5 usec as defined by IEC 60325 Alarms count rate exposute dose and scaler alarm setpoints adjustable over the display range Overload high count rate saturation protection preve
31. rimary Count Units and Minimum Display Default 0 Use ON ACK to select the value to adjust and MODE to adjust the value Available values are Number of Decimal Places 0 1 or 2 Minimum Units depend on the selected Primary Units See List Below Primary Primary Primary Count Primary Count Units Units Units Units Available Available cps cps uR h uR h uR kcps mR h mR h mR cpm cpm R h R h R kcpm i uSv h uSv h uSv kBg d mSv h mSv h mSv dpm dpm Sv h Sv h Sv kdpm d Primary Count Alarm Point Default 000 Use ON ACK to select the value to adjust and MODE to adjust the value Units will be the same as selected earlier with Primary Count Units Primary Count Units of c or d will not be displayed but mR or uSv will The ALARM LCD Segment will be on to indicate an Alarm parameter Set this Alarm Point to 000 to disable Available values are Ones Place 0 9 Tens Place 0 9 Hundreds Place 0 9 Number of Decimal Places 0 1 or 2 Range k on or off cpm cps dpm Bq u m or none for R h and Sv h Note If the Primary Count Units has changed to a value other than that used to previously set this Alarm Point the Alarm Point will be reset to 000 Ludlum Measurements Inc Page 4 10 December 2015 Model 3000 Survey meter User s Manual Section 4 Setup Page 3 Secondary RATE MAX Units and Minimum Display Default uR h Use ON ACK to select the value to adjust
32. rk in conjunction with the fixed alarm i e the user can have both a floating audio alarm resulting in audio beeps based on the background level and a fixed tone audio and a steady ALARM icon when a predetermined fixed alarm level is exceeded Page 2 3 December 2015 Model 3000 Survey meter Ludlum Measurements Inc Users Manual Section 2 Detector Failure Diagnostic Note that the Model 3000 has its own diagnostic tests to ensure that the detector is functioning correctly The Model 3000 can detect when the radiation detector is malfunctioning and will flash the display to indicate a fault If the detector stops detecting radiation for a settable number of seconds the Model 3000 will flash a zero reading for the currently selected units This indication is common if the unit is powered up without a detector connected If this indication is observed with a connected detectot remove the unit from service and have it evaluated by a qualified repair and calibration technician Figure 3 Detector Failure display shown for cpm will also flash Detector Over Range If the detector is exposed to high levels of radiation or has an internal malfunction that causes it to count high or excessively the unit flashes the maximum rate 999 for the currently selected units as a warning The user should ensure whether this is being caused by a high radiation field or by internal malfunction With some detectors this display could be
33. s Inc supports the recycling of the electronics products it produces for the purpose of protecting the environment and to comply with all regional national and international agencies that promote economically and environmentally sustainable recycling systems To this end Ludlum Measurements Inc strives to supply the consumer of its goods with information regarding reuse and recycling of the many different types of materials used in its products With many different agencies public and private involved in this pursuit it becomes evident that a myriad of methods can be used in the process of recycling Therefore Ludlum Measurements Inc does not suggest one particular method over another but simply desires to inform its consumers of the range of recyclable materials present in its products so that the user will have flexibility in following all local and federal laws The following types of recyclable materials are present in Ludlum Measurements Inc electronics products and should be recycled separately The list is not all inclusive nor does it suggest that all materials are present in each piece of equipment Batteries Glass Aluminum and Stainless Steel Circuit Boards Plastics Liquid Crystal Display LCD Ludlum Measurements Inc products that have been placed on the market after August 13 2005 have been labeled with a symbol recognized internationally as the crossed out wheelie bin which notifies the consumer that
34. s to count for a predetermined amount of time and to display the results on the display Note that the predetermined count time can be from 1 second to 10 minutes or can be set to zero to enable continuous counting until stopped by the user Count mode operation is very flexible depending on the units chosen common choice is for the count mode to just perform a scaler count for a specified time with a resulting answer in counts equaling detected radiation events Ifa result in terms of activity is desired the scaler count can also be in units of d or disintegrations But if the count units are chosen to be cpm or cps then the resulting answer is an averaged count rate over the time interval Similarly if count units of Bq dpm are chosen the resulting answer is an averaged disintegration rate Y NOTE If the user desires the instrument to show results in terms of disintegrations area eg dpm 100cm or Bg cm then the appropriate factor should be placed in the Efficiency parameter Other choices are to have count mode units of R h or Sv h in which case the COUNT mode result is an averaged exposure or dose rate But if count mode units of or Sv ate chosen the result is shown in accumulated exposure or accumulated dose over the chosen count time The following tables lists the possibilities UNITS RESULT counts per count time d disintegrations per count time cpm cps count rate averaged over the count time dpm
35. t Units and Minimum Display 000 c P2 5 Primary Count Alarm Point 000 Disabled Hei Secondary Units and Minimum Display a Non SI exposure rate KS Secondary Units and Maximum Display Ea P3 3 0 Units RATE MAX Mode Alarm 000 Disabled 0 00 mR Non SI exposure P3 5 Secondary Count Alarm Point 000 Disabled PE Response Time 0 m P4 2 Auto Response Rate Slow Auto Response P4 3 Operational Modes All Modes Available P4 4 Count Time 1 00 One Minute P4 5 Auto Shutdown Time Hours 0 Disabled P4 6 Backlight Threshold LO Most Sensitive P4 7 Sigma Audio OFF Disabled Ludlum Measurements Inc Page 4 2 December 2015 Model 3000 Survey meter User s Manual Section 4 Entering Setup Mode To enter Setup Mode power down the Model 3000 then turn the unit back ON Following the display of the Firmware version when the instrument has begun normal operation press the MODE button three times within four seconds to enter Setup mode Note This process is different if you are in Sigma Mode rather than in the click Mode While trying to enter Setup Mode from Sigma Mode once the screen displays the firmware number and then begins counting down press the Mode button three times as soon as the countdown begins Do not wait until the countdown is complete which will prevent you from getting into the Setup Mode There is no countdown for the click Mode Entry to Setup Mode can be confirmed when
36. ter User s Manual Section 6 Revision History NOTE This section of the manual will be updated with each revision of the Model 3000 in order to document changes over time Ludlum Measurements policy is to provide free software upgrades to instruments for the life of the instrument December 2013 New manual May 2014 Added range Threshold range and maximum load on supply to Specifications Section 3 July 2014 Added standard parts list Section 8 Added note about foam grip in Intro Added sentence on page 4 6 about setting DTC to zero when checking with pulser September 2014 In second paragraph on page 4 4 corrected Mode button to Units button twice Also changed to hold down button for 4 seconds instead of 3 Updated ON ACK and AUDIO button operational descriptions to reflect Sigma Audio operation On page 3 1 changed ON OFF Quiet button to ON OFF ACK November 2014 Added a note explaining entering Setup Mode while in Sigma Mode on page 4 3 Added a note on page 4 14 regarding the audio and background December 2015 Added description of headphone option Corrected the location of the low battery indicator Updated the table on page 4 13 Removed Units selected as Primary will not be available as Secondary on page 4 11 Updated Sigma Audio Note on page 4 14 Ludlum Measurements Inc Page 6 1 December 2015 Model 3000 Survey meter User s Manual Section 7 Recycling Ludlum Measurement
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