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Ludlum Measurements 25024424, Manual

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Summary of Contents for 25024424

Page 1: ...Model 30 Series Digital Survey Meter Ludlum Measurements June 2022 Serial Number 25024424 and Succeeding Firmware F 3 1 4549 and Higher ...

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Page 3: ...Model 30 Series Digital Survey Meter Ludlum Measurements June 2022 Serial Number 25024424 and Succeeding Firmware F 3 1 4549 and Higher ...

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Page 5: ...ranty of merchantability or fitness which extend beyond the description of the face there of If the product does not perform as warranted herein purchaser s sole remedy shall be repair or replacement at the option of Ludlum Measurements In no event will Ludlum Measurements be liable for damages lost revenue lost wages or any other incidental or consequential damages arising from the purchase use o...

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Page 7: ...he Instrument On and Off 20 4 5 Instrument Power ON Sequence 20 5 Normal Operation 23 5 1 Buttons 23 5 2 Status Icons 23 5 3 Display Units 24 5 4 Alerts and Alarms 24 5 5 RATE Mode 25 5 6 MAX Mode 26 5 7 COUNT Mode 27 6 Fault Detection 31 6 1 Instrument Faults 31 6 1 1 Detector Loss of Counts 31 6 1 2 Detector Over Range 32 6 1 3 Detector Overload 32 6 1 4 Calibration Expiration 32 6 1 5 Date Real...

Page 8: ...xpiration Lockout 56 8 4 Variable LED Brightness 57 8 4 1 Backlight 57 8 4 2 Ambient Light Value 57 8 5 Audio 57 8 6 Low Battery Alarm Interval 57 8 7 Software Calibration Tools 58 8 8 Instrument Calibration 58 8 9 DIP Switch Viewing 58 8 10 Other Device Data 58 8 11 Real time Streaming 59 9 Specifications 61 9 1 Instrument 61 10 Safety Considerations 63 10 1 Environmental Conditions for Normal Us...

Page 9: ...7 and 30 7B 70 A 3 1 Detector 71 A 3 2 Specifications 71 B Typical Values 73 C All Paramters 75 D Errata 83 D 1 Firmware Known Issues 83 E Assembly Drawings 85 E 1 Model 30 Dimensions 86 E 2 Model 30 Parts Diagram 87 June 2022 ...

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Page 11: ...in COUNT mode 28 5 6 COUNT mode ready to start 28 5 7 COUNT mode results 28 6 1 Fault Loss of Counts 31 6 2 Fault Over Range 32 6 3 Fault Overload 32 6 4 Fault Calibration Expired 33 6 5 Fault Date Reset 33 6 6 Fault Defaults Loaded 33 7 1 Button Press 36 7 2 Menu Short Cut 36 7 3 Setup DIP switch protection enabled 38 7 4 Setup Group Detector 40 7 5 Setup Group Channel 1 42 7 6 Setup Group Displa...

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Page 13: ... MAX Minimum Values 46 7 2 Display Unit RATE MAX Maximum Values 46 7 3 Display Unit Count Minimum Values 48 7 4 Display Unit Count Maximum Values 48 8 1 Features That Affect Units in All Modes 56 9 1 Instrument Display Range 61 9 2 Auto Response Times in seconds 62 9 ...

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Page 15: ...aler count a time averaged rate a time averaged exposure or dose or an integrated exposure or dose Two sets of display units can be configured for RATE MAX mode and COUNT mode The user can switch between these by simply pressing the Units button Available units for each mode are RATE MAX cps cpm Bq dpm rem h R h or Sv h COUNT cps cpm c counts Bq dpm d disintegration rem h rem R h R Sv h or Sv The ...

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Page 17: ...able Display Range auto ranging maximum and minimum display can be set to limit display to calibrated range Table 2 1 Unit Range Rate Mode Count Mode R h 0 00 µ 999 x x Sv h 0 00 µ 999 x x rem h 0 00 µ 999 x x R 0 00 µ 999 x Sv 0 00 µ 999 x rem 0 00 µ 999 x cpm 0 00 999 k x x cps 0 00 999 k x x c counts 0 00 999 k x Bq 0 00 999 k x x dpm 0 00 999 k x x d disintegration 0 00 999 k x x indicates if ...

Page 18: ... auto slow or user defined 0 60 s Audio greater than 75 dB at 0 6 m 2 ft approximately 4 kHz Battery Power two alkaline or rechargeable AAA does not support in device charging Battery Life approximately 100 hours of operation 24 hour low battery warning Construction high impact plastic with water resistant rubber seals and separate battery compartment Environmental Rating NEMA National Electrical ...

Page 19: ...C H A P T E R 3 QUICK REFERENCE 3 1 Instrument Front Diagram 15 ...

Page 20: ...16 CHAPTER 3 QUICK REFERENCE 3 2 Instrument Rear and Sides Diagram Ludlum Measurements Inc ...

Page 21: ...3 3 INSTRUMENT INTERNAL DIAGRAM 17 3 3 Instrument Internal Diagram June 2022 ...

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Page 23: ...oaded from the Ludlum website at www ludlums com Find the form by clicking the Support tab and selecting Service Department from the drop down menu Then choose the appropriate Service Department division where you will find a link to the form 4 2 Battery Installation A low battery indicator appears on the top of the LCD when less than 24 hours of battery life remain Follow these steps to replace t...

Page 24: ...abled mode 4 4 Turning the Instrument On and Off To turn the instrument ON momentarily press the OK button Display should activate within moments To turn the instrument OFF press and hold the OK button at any time A countdown will start Continue holding until the screen turns off 4 5 Instrument Power ON Sequence Turn the instrument ON by pressing the OK button momentarily and then releasing The in...

Page 25: ... The instrument displays the firmware version Figure 4 2 Firmware version display Next the instrument will display the current battery voltage Figure 4 3 Battery voltage display The instrument will then move to normal operation June 2022 ...

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Page 27: ...e is enabled but the unit is disabled it will be skipped In RATE or MAX modes performing a long press press and hold for ap proximately 0 5 seconds will toggle the response time between fixed fast and fixed slow or auto fast and auto slow If user defined time is selected this feature will be ignored In COUNT mode performing a long press press and hold for approxi mately 0 5 seconds will advance th...

Page 28: ...tings Rate Max shared Unit Minimum Display Value Maximum Display Value Alert set point Alarm set point Count Unit Minimum Display Value Alert set point Alarm set point This device has two sets of display units 5 4 Alerts and Alarms The radiation levels that activate an Alert or an Alarm are user defined This instrument has an alert and an alarm set point for RATE MAX mode and another set of set po...

Page 29: ...can be silenced A FORCED ALARM will activate when the reading exceeds the user configured maxi mum display A forced alarm is similar to an ALARM with the addition of the maximum value or 888 flashing on the display A FORCED ALARM CANNOT be silenced Figure 5 1 Alert example in rate mode Figure 5 2 Alarm example in rate mode 5 5 RATE Mode In RATE mode the current count rate is displayed The rate is ...

Page 30: ...n MAX mode MAX mode is always running in the background on power up While in other modes or units the maximum rate encountered will be stored OK button The first press of the button mutes click audio or other activity audio The second press of the button resets max value to zero and re enables click audio If there are alerts alarms the alert alarm acknowledgement takes precedent and will register ...

Page 31: ...is an averaged count rate over the time interval Other choices are to have count mode units of R h Sv h or rem h in which case the COUNT mode results in a averaged exposure or dose rate But if count mode units of R Sv or rem are chosen the result is shown in accumulated exposure or accumulated dose over the chosen count time Activity measurements that utilize the efficiency parameter for 2pi 4pi e...

Page 32: ...n the h mm format 2 Counting Time remaining is shown and alerts alarms are armed If an alert alarm level is reached while counting the count value will alternate with the current read ing When count down timer reaches 0 the device will automatically advance to the Results state 3 Results Results will be displayed when countdown is finished if count time is greater than 0 If count time is 0 this wi...

Page 33: ...ent is equipped with seven unique count times one user defined time 0 continuous 6 seconds 30 seconds 60 seconds 2 minutes 5 minutes and 10 minutes If the count is in progress or has concluded a long press of the MODE button is ignored 1 Ready to count Starts counting Automatically advances to Counting 2 Counting Resets count Changes the state of count mode to ready to count 3 Results Clears resul...

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Page 35: ...e OK button will silence the tone and ac knowledge the currently displayed fault if applicable If the cause of a fault condition is removed the instrument will automatically clear the fault and continue normal operation 6 1 1 Detector Loss of Counts If the detector stops detecting radiation for a settable number of seconds the instrument will flash LoC or Loss of Counts This indication is common i...

Page 36: ...ing the instrument s behavior in a known radiation field Figure 6 2 Fault Over Range 6 1 3 Detector Overload If a current overload threshold is enabled the instrument can detect when there are some forms of detector failure a cable failure or a high level of radiation In this event the unit will flash oL Figure 6 3 Fault Overload 6 1 4 Calibration Expiration If the calibration expiration lockout i...

Page 37: ...faults Loaded If the device settings become corrupted due to firmware updates memory failure or soft ware clearing the device will solidly display or flash dEF depending on which settings invalid to indicate that at least some settings are running on firmware default values If the display is solid the fault can be acknowledged and the device will continue to run In either case a professional shoul...

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Page 39: ...form 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 in struments Calibration procedures are available upon request for customers who choose to calibrate their own instruments ò Ludlum Measurements Inc recommends recalibration at intervals no greater than one year assuming t...

Page 40: ...the setup menu 1 Power down the instrument 2 Turn the instrument back on 3 Following the display of the battery voltage when the instrument has begun normal operation press the MODE button three times within four seconds to enter the setup menu Entry to the setup menu can be confirmed when the display shows dEt indicating the first setup group is selected 7 4 Entering Setup Menu Alternative This d...

Page 41: ...button are needed to exit the setup menu 7 6 Setup Mode Operation The setup menu is arranged into two levels groups and pages Each group contains several related pages Each page controls a particular setting ò While in the group selection level the bar graph displays a tick mark for every page in the group When in a page the bar graph flashes the segment that cor responds to the page s location in...

Page 42: ...e will briefly appear to indicate this See figure below OK Select the next position on the current page LONG UNIT Exit page Return to group selection Figure 7 3 Setup DIP switch protection enabled 7 7 Setup Menus 7 7 1 Menu Map Detector dEr 1 HV 2 Current Overload 3 Response Time Auto Response Rate 4 User Defined Count Time 5 Enabled Modes 6 Audio Divide Channel 1 Ch1 1 Cal Constant Mantissa Ludlu...

Page 43: ...ate Maximum Display Exponent 3 Rate Max Alert 4 Rate Max Alarm 5 Count Unit and Minimum Display Exponent 6 Count Alert 7 Count Alarm 8 Icon Unit 2 U 2 1 Rate Unit and Minimum Display Exponent 2 Rate Maximum Display Exponent 3 Rate Max Alert 4 Rate Max Alarm 5 Count Unit and Minimum Display Exponent 6 Count Alert 7 Count Alarm 8 Icon Instrument InS 1 Audio Mode June 2022 ...

Page 44: ...etup Group Detector High Voltage Controls the operating voltage of the detector Value is in volts Configurable positions are Ones Place 0 9 Tens Place 0 9 Hundreds Place 0 9 k Multiplier on off Range 300 1600 V ò The k multiplier also activates left most decimal point If the k multiplier is used the Hundreds Place value is limited to 0 and 1 showing thousands value Ludlum Measurements Inc ...

Page 45: ...g surveys to a fixed MDA Minimum Detectable Activity level When operating in Auto Response mode the instrument will vary the Response Time based on the Auto Response Rate selected Fast or Slow and the current Count Rate When the instrument detects a sudden change in count rate from the detector the response time is reduced to 1 second to quickly show the new value If all characters are flashing th...

Page 46: ... click audio For exampe an Audio Divide of 100 will result in one audio click being emitted for every 100 pulses detected Note Audio is enabled for this menu item to allow the user to hear the effects of adjusting this value while the detector or a pulser is connected Configurable positions are Audio Divide 1 10 100 and 1 00k 7 7 3 Setup Group Ch1 Channel 1 Figure 7 5 Setup Group Channel 1 Calibra...

Page 47: ...rable positions are Exponent 0 10 Range See Calibration Constant Mantissa Dead Time Correction This parameter is used to correct for dead time in the detector Value is in microseconds µs Correction is disabled if value is set to 0 see Dead Time Correction on page 55 Configurable positions are Ones Place 0 9 Tens Place 0 9 Hundreds Place 0 9 Decimal Place rightmost on off Range 00 0 999 µs ò This s...

Page 48: ...sed on a per detector basis or 4pi basis i e the efficiency of the detector is calculated by dividing the count rate received from a source by the total disin tegration 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 display But if the user desires to have the instrument show results in terms of dpm 10...

Page 49: ...me with no counts that can lapse before the loss of count fault is activated Setting the Loss of Count Alarm Time to 0 disables the fault Value is in seconds Configurable positions are Ones Place 0 9 Tens Place 0 9 Hundreds Place 0 9 Decimal 0 or 2 Range 000 to 9 99 ks 7 7 4 Setup Group U 1 Display Unit Figure 7 6 Setup Group Display Unit 1 Display Unit 1 RATE MAX Units and Minimum Display Sets th...

Page 50: ...ions R h Sv h rem h 0 00µ 00 0µ 000µ 0 00m 00 0m 000m 0 00 00 0 000 dpm Bq cpm cps 0 00 00 0 000 0 00k 00 0k 000k Display Unit 1 RATE MAX Maximum Display This determines the maximum displayable value for the display unit 1 or RATE mode and MAX mode If the calculated value is higher than this this value will flash and a forced alarm will activate The unit will be the same as selected minimum displa...

Page 51: ...flash an alarm tone will sound and the ALARM icon will flash This value should be above the minimum display value and below the maximum display value If an alert is also enabled the alarm level should be above the alert level Set this to 000 to disable Configurable positions are Ones Place 0 9 Tens Place 0 9 Hundreds Place 0 9 Decimal Point and Prefix see previous table Display Unit 1 Count Units ...

Page 52: ...the alert level should be below the alarm level Set this to 000 to disable Configurable positions are Ones Place 0 9 Tens Place 0 9 Hundreds Place 0 9 Decimal Point and Prefix see following table Table 7 4 Display Unit Count Maximum Values Units Available decimal points prefix combinations R h Sv h rem h R Sv rem X XXµ XX Xµ XXXµ X XXm XX Xm XXXm X XX XX X XXX dpm Bq cpm cps disintegrations counts...

Page 53: ...X rays will also be measured when that icon is illuminated 7 7 5 Setup Group U 2 Display Unit 2 Figure 7 7 Setup Group Display Unit 2 Display Unit 2 RATE MAX Units and Minimum Display See Display Unit 1 RATE MAX Units and Minimum Display This has all the same options with one addition Unit positions can also be oFF ò If this unit is turned off the next page will be Display Unit 2 Count Units and M...

Page 54: ...nits and Minimum Display This has all the same options with one addition Unit positions can also be oFF ò If this unit is turned off the next page will be Display Unit 2 Radiation Icon Display Unit 2 Count Alert Point See Display Unit 1 Count Alert Point ò If Display Unit 2 Count unit is set to oFF this setting will be skipped Display Unit 2 Count Alarm Point See Display Unit 1 Count Alarm Point ò...

Page 55: ...gma n is settable by software from the average a pulse will be heard Floating delta is best for finding changes increases or decreases from existing readings Configurable positions are Modes cLc SIG F d Audio Volume Simultaneously sets the audio volume of click audio or other activity audio and alert alarm volume 0 mutes click and alert alarm see Audio on page 57 Configurable positions are Volume ...

Page 56: ... indicator is desired the green LED can be used in conjunction with the alert and alarm levels to provide this functionality There are three states it can be activated on off and blink Blink mode is intended to mitigate the battery life problem while still providing a simple interface The green LED states can also be varied on the current power source oFF Off all the time on on all the time bL bli...

Page 57: ... board the order from left to right is SW1 1 SW1 2 SW2 1 and SW2 2 Dip Switches control the following SW1 1 Cal Protect Protects calibration from changes in the device setup menu Values can still be viewed but an attempt to modify these settings will cause the device to briefly show a dIP message see Figure 7 3 SW1 2 Backlight Always On Forces the backlight into the always on state and will no lon...

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Page 59: ...te and ratec is the corrected rate Dead time correction coefficients are configured through the device setup menu or through Lumic Calibration software Lumic Calibration software also includes a wizard that will au tomate finding and setting the correct coefficients DTC1 is represented in microseconds µs on the device setup menu and in the software The equation must be calculated in terms of secon...

Page 60: ...tion software It allows setting a date and time that will cause the device to lock out due to expired calibration To enable this feature the calibration expiration lockout timer DIP switch must be turned on see DIP Switches on page 53 The real time clock and the calibration expiration lockout must also be set correctly in Lumic Calibration software A calibration expiration fault see Calibration Ex...

Page 61: ...mbient light sensor This is a raw reading from the ambient light sensor used to assist in redefining the ambient light state thresholds 8 5 Audio This instrument utilizes software controlled audio There are three types of tones that can be generated a low tone used for clicks and alert audio a high tone used for alarms and a tone for buttons Each of the settings is configurable in the Lumic Calibr...

Page 62: ...he instrument is built and should not require re calibration However if calibration is required due to board rework etc the calibration settings are available in Lumic Calibra tion software 8 9 DIP Switch Viewing The current setting of the DIP switches can be viewed from Lumic Calibration software This allows the user to check the current DIP switch setting without opening the instrument 8 10 Othe...

Page 63: ...the ability to stream data from the in strument to a computer The data can be viewed live inside software or can be recorded to a file Multiple user selected parameters can be streamed simultaneously including Remote display of the screen All unit values Device status Live HV current measurement June 2022 ...

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Page 65: ...d of a computer Display Range all auto rangeable maximum displays can be set to limit the display to cali brated range Table 9 1 Instrument Display Range Unit Range Rate Mode Count Mode R h 0 00 µ 999 x x Sv h 0 00 µ 999 x x rem h 0 00 µ 999 x x R 0 00 µ 999 x Sv 0 00 µ 999 x rem 0 00 µ 999 x cpm 0 00 999 k x x cps 0 00 999 k x x c counts 0 00 999 k x Bq 0 00 999 k x x dpm 0 00 999 k x x d disinte...

Page 66: ...rage time of 10 90 measurements Real time Streaming Rate 1 16th to 15 seconds 1 16th second resolution Real time Streaming Parameters 8 Warm up Time less than 2 minutes Power two alkaline or rechargeable AAA batteries does not support in device charging Battery Life approximately 100 hours of operation 24 hour low battery warning Temperature Range 20 to 50 C 4 to 122 F may be certified for operati...

Page 67: ...uctive pollution becomes conductive due to condensation This is typical of industrial or construction sites Not certified for use in an explosive atmosphere 10 2 Warning Markings and Symbols 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 spec ified by Ludlum Measurements Inc Verify instrument volt...

Page 68: ...sed to identify this instrument as being acceptable for use within the European Union CAUTION per ISO 3864 No B 3 1 designates hazardous live voltage and risk of electric shock During normal use internal components are hazardous live voltage before accessing the internal components This symbol appears on the battery cover Be sure to take the precautions noted in the next section whenever necessary...

Page 69: ... 30 6 design changed to telescoping style pole The photo descrip tion and size of the 30 6 were updated in the Appendix Chapter 13 July 2020 Corrected the range for the Model 30 6 from 0 1000 µR h to 0 2000 µR h on page 59 June 2022 Increased loss of count time to 9 99K seconds and modified Channel 1 and Chan nel 2 Setup Menu to reflect new feature limits Added click audio divide feature to instru...

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Page 71: ...form 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 elec tronics 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 equi...

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Page 73: ...ng within 10 of actual value The energy response provides appropriate inverse RPG curve for neutrons from thermal through 7 MeV and provides a response up to 12 MeV A 1 2 Specfications Gamma Rejection 10 cpm through 0 1 Sv hr 10 R hr 137 Cs gamma Operating Voltage approximately 1200 Vdc Threshold 2 mV Temperature Range 20 to 50 C 4 to 122 F may be certified for operation from 40 to 65 C 40 to 150 ...

Page 74: ...for operation from 40 to 65 C 40 to 150 F Environmental Rating NEMA National Electrical Manufacturers Association rating of 3x or IP Ingress Protection rating of 52 with audio hole seal option Size 20 3 x 20 3 cm 8 x 8 in L x W overall length is adjustable from 111 to 161 cm 43 6 to 63 4 in with 11 different length settings Weight 2 9 kg 6 5 lb A 3 Model 30 7 and 30 7B Like the Model 30 4 the Mode...

Page 75: ...des response up to 12 MeV A 3 2 Specifications Gamma Rejection 10 cpm through 0 1 Sv h 10 R h 137 Cs gamma Operating Voltage approximately 1200 Vdc Threshold 2 mV Temperature Range 20 to 50 C 4 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 3x or IP Ingress Protection rating of 52 with audio hole...

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Page 77: ...sponse Rate F dEt4 Count Time 60 dEt5 Enabled Modes Rate Max Count Ch1 1 Calibration Constant Mantissa 122 100 001 600 940 Ch1 2 Calibration Constant Exponent 04 08 00 04 8 Ch1 3 Dead Time Correction 1 36 10 5 5 5 Ch1 4 Dead Time Correction 2 Mantissa 360 TBD TBD TBD TBD Ch1 5 Dead Time Correction 2 Exponent 12 TBD TBD TBD TBD Ch1 6 Efficiency 100 15 Alpha 20 Beta 15 15 15 Ch1 7 Discriminator Thre...

Page 78: ...0 cpm U 2 2 Unit 2 Units and Maximum Display 999 kcpm 999 kcpm 999 kcpm 999 kcpm U 2 3 Unit 2 Units RATE MAX Mode Alert Point 2 00 kcpm 2 00 kcpm 2 00 kcpm 2 00 kcpm U 2 4 Unit 2 Units RATE MAX Mode Alarm Point 5 00 kcpm 5 00 kcpm 5 00 kcpm 5 00 kcpm U 2 5 Unit 2 Count Units and Minimum Display 000 counts 000 counts oFF 000 counts 000 counts U 2 6 Unit 2 Count Units Alert Point 0 counts dis abled ...

Page 79: ...age 300 1600 Defines the operating voltage of the detector Ch1 8 Loss of Count Timer 0 999 Defines the amount of time in seconds it takes before the instrument triggers a loss of count fault A value of 0 disables this feature dEt 2 Overload 0 100 Defines the high voltage current required to trigger an over current fault A value of 0 disables this feature dEt 3 Response Time 1 min 60 max slow and f...

Page 80: ...ven display unit Ex 6 with a display unit of R h would yield a minimum display of 000 µR h Software simplified this setting U 1 2 Display Unit 1 RATE Maximum Value 1 00E 06 999000 Defines the maximum value allowed for a given display unit Ex 999 with display unit of R h will yield a maximum display of 999 R h If the rate exceeds this value a forced alarm will engage This value must be at least two...

Page 81: ...splay units used for RATE and MAX modes Display Unit 2 RATE Minimum Display Exponent 8 3 Defines the minimum exponent allowed for a given display unit Ex An exponent of 6 with a display unit of R h would yield a minimum display of 000 µR h Software simplifies this setting U 2 2 Display Unit 2 RATE Maximum Value 1 00E 06 999000 Defines the maximum value allowed for a given display unit Ex 999 with ...

Page 82: ...sable this alert U 2 7 Display Unit 2 COUNT Alarm Threshold 0 999000 Defines the alarm threshold for COUNT mode A value of 0 will disable this alarm U 2 8 COUNT Time 0 999 Determines the amount of time COUNT mode will count for in seconds A value of 0 will cause count mode to have unlimited count time OK Button 0 1 Virtual press of the OK button UNIT Button 0 1 Virtual press of the UNIT button MOD...

Page 83: ... Alarms Audio Tone Low 2500 6000 Determines the frequency of clicks and alerts Audio Tone Button 2500 6000 Determines the button press frequency InS 2 Audio Click Volume 0 3 Sets the volume of the click audio or other activity audio 0 is silent Audio Alarm Volume 0 3 Sets the volume of Alerts and Alarms 0 is silent Audio Button Volume 0 3 Sets the volume of the button presses 0 is silent Ins 1 Aud...

Page 84: ...t threshold to transition from dark state to medium state Medium to Dark 0 2500 Ambient light threshold to transition from medium state to dark state Medium to Bright 0 2500 Ambient light threshold to transition from medium state to bright state Bright to Medium 0 2500 Ambient light threshold to transition from bright state to medium state dEt 5 Rate Mode Enabled 0 1 Determines if RATE mode is ena...

Page 85: ...1 31 Day for the calibration expiration date of the instrument Calibration Expire Year 2015 3000 Year for the calibration expiration date of the instrument Calibration Expire Hour 0 23 Hour for the calibration expiration date of the instrument Calibration Expire Minute 0 59 Minute for the calibration expiration date of the instrument DIP SW1 1 read only Current state of DIP switch 1 1 DIP SW1 2 re...

Page 86: ...nclude unit Does not have to be active on device display Display Unit 1 Count Unit 0 0 Unit for streaming measured COUNT rates Display Unit 2 Measured Rate 0 0 Access to measured RATE that is updated every 1 16th second Intended for streaming only Floating point number only does not include unit Does not have to be active on device display Display Unit 2 Measured Max Rate 0 0 Access to measured MA...

Page 87: ...ll continue normal operation Issue Instrument always starts in rate mode Description Instrument always starts in rate mode even if rate mode is disabled Workaround Change modes once after power on Instrument will then follow config ured mode pattern Issue Button and low tone frequencies cannot be changed Description The frequency of the high tone low tone and button tone are config urable through ...

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Page 89: ...e needed call Ludlum Measurements Inc One of our salespeople will be happy to assist you The following drawings are provided to assist in finding the correct part Drawing Description Page 498 x 512 Model 30 Dimensions 86 498 x 512C Model 30 Parts Diagram 87 85 ...

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