Ludlum Model 3001 Multi-Detector Survey Meter User's Manual PDF

LUDLUM MODEL 3001 MULTI-DETECTOR SURVEY METER USER’S MANUAL November 2020 Serial Number: 25009185 and Succeeding Firmware: n33 and Higher  LUDLUM MODEL 3001 MULTI-DETECTOR SURVEY METER USER’S MANUAL November 2020 Serial Number: 25009185...

LUDLUM MODEL 3001 MULTI-DETECTOR SURVEY METER USER’S MANUAL November 2020 Serial Number: 25009185 and Succeeding Firmware: n33 and Higher  LUDLUM MODEL 3001 MULTI-DETECTOR SURVEY METER USER’S MANUAL November 2020 Serial Number: 25009185 and Succeeding Firmware: n33 and Higher Model 3001 Multi-Detector Survey Meter User’s Manual Model 3001 Multi-Detector Survey Meter User’s Manual STATEMENT OF WARRANTY Ludlum Measurements, Inc. warrants the products covered in this manual to be free of defects due to workmanship, material, and design for a period of twelve months from the date of delivery. The calibration of a product is warranted to be within its specified accuracy limits at the time of shipment. In the event of instrument failure, notify Ludlum Measurements to determine if repair, recalibration, or replacement is required. This warranty excludes the replacement of photomultiplier tubes, G-M and proportional tubes, and scintillation crystals which are broken due to excessive physical abuse or used for purposes other than intended. There are no warranties, express or implied, including without limitation any implied warranty 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, or inability to use product. RETURN OF GOODS TO MANUFACTURER If equipment needs to be returned to Ludlum Measurements, Inc. for repair or calibration, please send to the address below. All shipments should include documentation containing return shipping address, customer name, telephone number, description of service requested, and all other necessary information. Your cooperation will expedite the return of your equipment. LUDLUM MEASUREMENTS, INC. ATTN: REPAIR DEPARTMENT 501 OAK STREET SWEETWATER, TX 79556 800-622-0828 325-235-5494 FAX 325-235-4672 Model 3001 Multi-Detector Survey Meter User’s Manual Table of Contents Introduction 1 Getting Started 2 Unpacking and Repacking 2-1 Battery Installation 2-1 Instrument Operational Test 2-2 Sigma Audio 2-4 Detector Failure Diagnostic 2-5 Detector Over Range 2-5 Detector Overload 2-6 Instrument Use and Controls 2-7 RATE Mode Operation 2-9 MAX Mode Operation 2-10 COUNT Mode Operation 2-11 Specifications 3 Setup Mode 4 Setup Overview 4-1 Setup Parameters 4-2 Entering Setup Mode 4-4 Setup Mode Operation 4-5 Datalogging 5 Datalogging Operation – Mode 1 5-2 Datalogging Operation – Mode 2 5-3 Datalogging Operation – Mode 3 5-4 Specifications 5-4 Software 6 Connecting to Software 6-1 Extended Features 6-2 Advanced Features 7 Dead Time Correction 7-1 Model 3001 Multi-Detector Survey Meter User’s Manual Units 7-2 Software Calibration Tools 7-3 Instrument Calibration 7-3 Other Device Data 7-3 Real-Time Streaming 7-4 Safety Considerations 8 Environmental Conditions for Normal Use 8-1 Warning Markings and Symbols 8-1 Cleaning and Maintenance Precautions 8-2 Revision History 9 Recycling 10 Options 11 Standard Parts List 12 Auxiliary Communications A AuxComm Overview A-1 Requirements A-1 Usage A-2 Settings A-5 Model 3001 Multi-Detector Survey Meter User’s Manual Section 1 1 Section Introduction The Model 3001 is an ergonomic, lightweight instrument which can be used for radiation survey purposes. It features the ability to measure radiation in count rate, exposure rate/dose, activity rate, integrated exposure/dose, time-averaged rates, and scaler counts. The Model 3001 supports up to four external radiation detectors to detect alpha, beta, or gamma radiation. Each detector may have its own set of calibration and user parameters. The DETECTOR button is used to select the active detector. The instrument features a large backlit LCD (liquid crystal display), an 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 grip but may be removed for ease of decontamination. Three modes of operation are available for the Model 3001 – RATE, MAX, and COUNT. RATE mode operation will display the current count, exposure, or 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, Bq, cps), a time-averaged exposure or dose (R/h, Sv/h), or an integrated exposure or dose (R or Sv). The standard handle includes the LOG pushbutton that allows the instrument to log up to 1000 data points when activated with the optional Lumic Datalogging Kit. Ludlum Measurements, Inc. Page 1-1 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 1 The display will be automatically backlit if light levels are low. The display backlight can also be configured for “Continuous On” operation. RATE, MAX, and COUNT modes can be silent or utilize a “click” audio; the “click” audio is always silent during COUNT mode by default. A "sigma" audio mode can be enabled (disabling the "click" audio) in RATE and MAX modes 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 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 is accomplished through the front-panel buttons, or through software available from Ludlum Measurements. Dead time correction coefficients can be configured either through the device setup menu or through a wizard included in the calibration software. Dead time correction employs first and second order corrections for extended performance. Front-panel setup can be disabled via the internal switch on the Model 3001 in order to protect settings from inadvertent changes. When the settings are protected, the user can only view the settings, and the password-protected software must be used to change any of the settings. The Model 3001 can be configured through software to allow changes to the alarms and or count time even when in protect mode. The unit is operated with four alkaline AA batteries for operation from -20 to 50 °C (-5 to 122 °F). Battery life is approximately 500 hours under normal usage. A low-battery indicator on the LCD warns when less than 16 hours of battery life remain. The Model 3001 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. For more advanced use: See Appendix A for information on our Auxiliary Communications features, which allow the instrument to expand its capabilities with a variety of external devices through a standard serial interface. Ludlum Measurements, Inc. Page 1-2 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 2 2 Section 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 (if applicable). The Model 3001 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 accompanied 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 AA batteries: 1. Turn the instrument over so that the bottom of the instrument is facing up. 2. Use a straight, medium-sized screwdriver to turn the single screw on the battery cover one-quarter turn counter-clockwise. 3. Release and remove the battery cover. 4. Replace all four AA batteries. 5. Replace the cover and turn screw one quarter of a turn clockwise to secure. Ludlum Measurements, Inc. Page 2-1 November 2020 Model 3001 Multi-Detector Survey Meter User’s 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 3001, with all LCD segments shown. The instrument then displays the firmware version. Please refer to Figure 2 below. Figure 2: Firmware version display. Note: Firmware versions with the Bq units are equipped with auxiliary communication. The instrument then displays the battery voltage. Please refer to Figure 3. Ludlum Measurements, Inc. Page 2-2 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 2 Figure 3: Battery Voltage display The instrument then displays the number of stored records if datalogging is enabled. Please refer to Figure 4 below. Figure 4: Startup display for Optional Data Logging firmware, showing 155 stored records. The instrument will then move to normal operation, displaying the current rate for the Primary units (default: mR/hr). If the Sigma Audio option is selected, the unit will display a countdown from :08 to :01 (in seconds) as the unit measures background radiation levels. The user may select the Secondary units (default: cpm) by pressing the Units button. Ludlum Measurements, Inc. Page 2-3 November 2020 Model 3001 Multi-Detector Survey Meter User’s 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 aware that the unit may not even turn on or may turn itself off abruptly. A reference reading with a check source, 1 µCi (37 kBq) of 137Cs 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 sources 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 are 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 3001 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 may 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 work 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. Ludlum Measurements, Inc. Page 2-4 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 2 Detector Failure Diagnostic Note that the Model 3001 has its own diagnostic tests to ensure that the detector is functioning correctly. The Model 3001 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 3001 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 detector, remove the unit from service and have it evaluated by a qualified repair and calibration technician. Figure 5: 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 icon ALARM is also displayed at the top of the screen. The user should ensure whether this condition is being caused by a high radiation field, by a shorted cable, or by internal malfunction. With some detectors, this display could be 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. Ludlum Measurements, Inc. Page 2-5 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 2 Figure 6: Detector Over Range (shown for kcpm); will also flash. Detector Overload As another diagnostic test, the Model 3001 monitors the HV supply's detector current. A current overload threshold can be set via Setup Mode. (A setting of 0 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 3001 will return to normal operation. Figure 7: Detector Overload Alarm; will also flash. Ludlum Measurements, Inc. Page 2-6 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 2 Instrument Use and Controls With four front-panel buttons (as seen in front-panel drawing in front of manual), the Ludlum Model 3001 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. Long-pressing the UNITS button will switch between Primary and Secondary units. Long-pressing the MODE button will switch the instrument to MAX mode, which will display the highest count rate detected. Long-pressing the MODE 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. ON/ACK button: Used to power the Model 3001 ON and OFF, reset MAX mode, start/reset the COUNT Timer, and acknowledge audio alarms.  Power On: Press for approximately one second and release (all LCD segments will activate, and firmware version will be shown).  Power Off: Press and hold for approximately four 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. Short Tap (tap-pressing the button and releasing in under a half second):  Normal Operation: Will acknowledge/silence alarms in all modes of operation.  Change Log Location Selected Position (if data logging is enabled).  Will move selection position in the device menu. Long Press (pressing the button and releasing for at least a half second):  Start/reset COUNT Timer in COUNT mode.  When Sigma Audio is enabled, pressing the ON/ACK button will take a new background reading and update the Sigma Audio level (in Rate Mode only).  Reset/Zero: When in Rate mode, a long press of the ON/ACK. Will reset/zero the averaged rate: the minimum display will be shown before returning to the exposure rate. When Sigma Audio is enabled, Rate Reset is disabled.  Will reset MAX mode display. Ludlum Measurements, Inc. Page 2-7 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 2 UNITS button: Short Tap (pressing the button and releasing under a half second)  Used to switch between Primary and Secondary units in all available modes. DETECTOR button: Short Tap (pressing the button and releasing under a half second)  Used to select the active detector, as evidenced by the corresponding DET1, DET2, DET3, or DET4 LED. Unit saves this setting prior to shutting down, so it will power up with the same detector setting. Long Press (pressing the button and releasing for at least a half second)  Only used in the device menu. While viewing the Detector Overload parameter, a long press will allow the user to view the actual current level. Another long press will return user to overload setting. MODE button: Short Tap (pressing the button and releasing under a half second)  Used to advance between the three operating modes: RATE, MAX, and COUNT. Note that MAX and/or COUNT mode may be disabled from use.  The device menu increments selected digit/text to the next available option. Ludlum Measurements, Inc. Page 2-8 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 2 RATE Mode Operation In RATE mode, the current count rate will be displayed. Long-pressing the ON/ACK button for at least a half second will reset the averaged rate before releasing the button. The Reset feature must be enabled through Lumic Calibration software (see parameter: RateResetBtn) and will be disabled when Sigma Audio is enabled. Tapping the UNITS button will switch the displayed value between the Primary and Secondary Units. Tapping ON/ACK button will turn the “click” audio on/off. When Sigma Audio is enabled, tapping the ON/ACK button will toggle the Sigma Audio beep on/off. If dual Level audio is enabled, it will toggle between “Hi, LO, and OFF.” If an alarm condition is present, tapping 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 RATE mode. When Sigma Audio is enabled, and an alarm condition is not present, a long press (at least a half second) of the ON/ACK button will reset the Sigma Audio alarm level. The Sigma count can only be reset in RATE mode. Figure 8: RATE mode display showing typical background radiation rate and the low-battery icon. Ludlum Measurements, Inc. Page 2-9 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 2 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. Tapping the UNITS button will switch the displayed value between the Primary and Secondary Units. Tapping the ON/ACK button will turn the “click” audio on/off. When Sigma Audio is enabled, tapping the ON/ACK button will toggle the Sigma Audio beep on/off. Under a non-alarm or alarm condition, a long press of the ON/ACK button will reset the display. When Sigma Audio is enabled, the Sigma Audio alarm level cannot be reset in Max Mode. If an alarm condition is present, tapping 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.) Tapping the ON/ACK button a second time will toggle the audio setting. Under an alarm condition, the ALARM display indicator will remain on until the display is reset. Alarms in MAX mode latch with the display. If other operational modes are available, tapping the MODE button will move to the next available operational mode. Figure 9: MAX mode operation display with ALARM indicator. Ludlum Measurements, Inc. Page 2-10 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 2 COUNT Mode Operation When entering COUNT Mode from another operational mode, the currently selected COUNT Unit will be displayed for approximately one second. The purpose of COUNT mode is 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. A 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). There are two different options for COUNT mode, which can be set through software. Go to “Device Count DisplayMode” in the Device or Others tab (depending on software version). Enter the desired option into the “Value” field.  0 - will only show the countdown timer while the timer is active (default selection).  1 - will cycle between showing the countdown timer and the current reading.  2 - will only show the current gathered reading. Note: Tapping the LOG button will start a count and automatically log the result. A long press of the LOG button during the count will toggle the display between the timer and reading. Audio ‘clicks’ are disabled in COUNT mode by default Device Count Mode AudioMode will enable\disable click audio during a COUNT  0 – Disabled (Mute icon will always be illuminated in COUNT mode.)  1- Enabled Ludlum Measurements, Inc. Page 2-11 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 2 Note: Sigma audio is disabled in Count Mode. If Sigma Audio and Count Mode Audio are enabled, click audio will be utilized in Count Mode. If a 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 or dpm are chosen, the resulting answer is an averaged disintegration rate. Note: If the user desires the instrument to show results in terms of disintegrations/area (eg. dpm/100cm2 or Bq/cm2), 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 R or Sv are chosen, the result is shown in accumulated exposure or accumulated dose over the chosen count time. The following tables lists the possibilities: UNITS RESULT c counts per count time d disintegrations per count time cpm, cps count rate averaged over the count time dpm, Bq disintegration rate, averaged over the count time R/h, Sv/h exposure or dose rate, averaged over the count time R, Sv integrated exposure or dose over the count time Ludlum Measurements, Inc. Page 2-12 November 2020 Model 3001 Multi-Detector Survey Meter User’s 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.  Tapping 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.  Long-pressing the ON/ACK button starts the Count Timer.  If other operational modes are available, tapping the MODE button will move to the next available operational mode. When the Count Timer is active:  The display will show either Count Time (default), both Count Time and Counts, or just counts, depending on Count Display Mode.  Doing a long press (pressing the button and releasing afater at least a half second) the ON/ACK button will reset the Count Timer.  Tapping the UNITS button will display the other unit if enabled.  Click audio, if enabled, can be turned on and off by tapping the ON/ACK button.  If an alarm condition occurs, the ALARM display indicator will turn on. Alarm audio will sound after the count is completed if the result is over the alarm threshold. (If the count unit is an averaged rate, it is possible for the ALARM icon to come on during the count, but if the averaged rate falls below the alarm threshold by the end of the count, no ALARM will be active.)  If other operational modes are available, tapping the MODE button will cancel the current Count Timer and move to the next available operational mode. 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 exposure or average dose in R/h and Sv/h.  Tapping the UNITS button will switch between the Primary and Secondary Count Units.  Pressing the ON/ACK will reset the Count Timer. Ludlum Measurements, Inc. Page 2-13 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 2  If an alarm condition occurred during the Timed Count, a continuous audio tone will sound, and the ALARM display indicator will already be on. Tapping the ON/ACK button once will acknowledge and turn off the continuous tone alarm audio. Doing a long press (pressing the button and releasing after at least a half second) to the ON/ACK button will clear the alarm condition and reset the Count Timer. Alarm audio will sound after the count is completed if the result is over the alarm threshold.  If other operational modes are available, tapping the MODE button will move to the next available operational mode. Figure 10: COUNT mode operation showing COUNT Timer of 5 minutes, 30 seconds. Ludlum Measurements, Inc. Page 2-14 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 3 3 Section Specifications 0 Detector: may be Geiger-Mueller (GM), scintillator, or proportional HV Range: 400-1500 Vdc Threshold Range: 4-100 mVdc Linearity: within 10% Resolving Time: approximately 5 µsec as defined by IEC 60325 Alarms: count rate, exposure/dose, and count alarm setpoints adjustable over the display range Overload: high count rate saturation protection prevents 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 Dead Time Correction: employs first and second order corrections for extended performance LCD Display: 3-digit LCD with large 20 mm (0.8 in.) digits, (k)cps, (k)cpm, (k)Bq, (k)dpm, (µ)(m)R(/h), (µ)(m)Sv(/h), low-battery indicator, MAX, ALARM, AUDIO Display Range:  0.0 cps to 99.9 kcps  0.00 cpm to 999 kcpm  0.00 Bq to 99.9 kBq  0.00 dpm to 999 kdpm  0.00 µR/h to 999 R/h  0.00 µSv/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. Ludlum Measurements, Inc. Page 3-1 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 3 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) User Controls:  ON/ ACK – long press to turn ON, tap to acknowledge alarms and silence alarm tone, long press to reset Sigma Audio alarm, long press to reset Rate, and hold for OFF. Tap to turn “click” audio on/off, or turn Sigma Audio beep on/off  MODE – alternates between RATE (count rate), MAX ( captures peak rate), and COUNT ( user-selectable preset count time from 0 to 10 minutes)  DETECTOR – tap to change active detector to the next enabled detector  UNITS – changes the units from count rate (cpm, cps), to dose/exposure (µSv/h, mR/h) or disintegration (dpm, Bq) Response Time: user-selectable from 1 to 60 seconds, or auto-response rate FAST or SLOW Audio: click audio greater than 65 dB at 0.6 m (2 ft), alarm audio at greater than 72 dB, approximately 4.5 kHz Power: four alkaline “AA” batteries Battery Life: approximately 500 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 5 or IP (Ingress Protection) rating of 53 Size: 16.5 x 11.4 x 21.6 cm (6.5 x 4.5 x 8.5 in.) (H x W x L) Weight: 0.9 kg (2.0 lb) Ludlum Measurements, Inc. Page 3-2 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 4 4 Section 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 following 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 request for customers who choose to calibrate their own instruments. Note: Ludlum Measurements, Inc. recommends recalibration at intervals no greater than one year, 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 November 2020  Model 3001 Multi-Detector Survey Meter User’s Manual Section 4 Setup Parameters Model Model Alpha or Setting Setup Parameter Model Model 133-6 44-2 Beta 42-31H 44-132 Calibration Constant P1-1 122 100 001 600 940 Mantissa Calibration Constant P1-2 04 08 01 04 8 Exponent P1-3 Dead Time Correction 1 36 10 5 5 5 Dead Time Correction 2 P1-4 360 TBD TBD TBD TBD Mantissa Dead Time Correction 2 P1-5 -12 TBD TBD TBD TBD Exponent Alpha: 20 P1-6 Efficiency 100 15 15 15 Beta: 15 P1-7 High Voltage Setpoint 550 800 800 1200 800 P1-8 Discriminator Threshold 35 35 35 2 10 Detector Current P1-9 0 (disabled) Overload Threshold Loss of Count Alarm Alpha:600 0 P1-10 999 60 60 Time Beta:60 (disabled) P1-11 Detector Enable En Unit 1 - Units and 0.00 P2-1 00.0 mR/h 000 µR/h 000 cpm 00.0 µR/h Minimum Display µSv/h Unit 1 - Units Maximum 50.0 100.0 2.50 P2-2 999 R/h 999 kcpm Display mR/h mSv/h mR/h Unit 1 - RATE/ MAX P2-3 0 (disabled) Mode Alarm 1 Unit 1 - RATE/ MAX 5.00 50.00 P2-4 50.0 mR/h 5.00 kcpm 500 µR/h Mode Alarm 2 mR/h µSv/h Unit 1 - Count Units 000 P2-5 00.0 mR/h 0.00 mR 0.00 µSv 00.0 µR/h and Minimum Display counts Unit 1 - Count Units P2-6 0 (disabled) Alarm 1 Unit 1 - Count Units 000 R 000 R 0 counts 000 R P2-7 000 Sv Alarm 2 (disabled) (disabled) (disabled) (disabled Unit 2 - Units and P3-1 000 cpm 000 cpm oFF 000 cpm 000 cpm Minimum Display Unit 2 - Units Maximum P3-2 999 kcpm 999 kcpm 999 kcpm 999 kcpm Display Unit 2 - RATE/ MAX P3-3 0 (disabled) Mode Alarm 1 Ludlum Measurements, Inc. Page 4-2 November 2020  Model 3001 Multi-Detector Survey Meter User’s Manual Section 4 Model Model Alpha or Setting Setup Parameter Model Model 133-6 44-2 Beta 42-31H 44-132 Unit 2 - RATE/ MAX P3-4 5.00 kcpm 5.00 kcpm 5.00 kcpm 5.00 kcpm 5.00 kcpm Mode Alarm 2 Unit 2 - Count Units 000 000 000 P3-5 000 counts oFF and Minimum Display counts counts counts Unit 2 - Count Units P3-6 0 (disabled) Alarm 1 Unit 2 - Count Units 0 counts 0 counts 0 counts 0 counts P3-7 Alarm 2 (disabled) (disabled) (disabled) (disabled) Response Time/Auto P4-1/2 S Response Rate P4-3 Enabled Modes Rate/Max/Count P4-4 Count Time 60 P4-5 Auto Shutdown Time 0 hours (disabled) P4-6 Sigma Audio Mode oFF on P4-7 Dual Level Audio oFF P5-1 Datalogging Mode 1 P5-2 Real Time Clock Month 1 P5-3 Real Time Clock Day 7 P5-4 Real Time Clock Year 14 P5-5 Real Time Clock Hour 16 P5-6 Real Time Clock Minute 30 P5-7 Real Time Clock Second 00 Ludlum Measurements, Inc. Page 4-3 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 4 Entering Setup Mode To enter Setup Mode, power down the Model 3001, then turn the unit back ON. Following the display of the Firmware version, when the instrument has begun normal operation, tap the MODE button three times (within four seconds) to enter Setup mode. Note: This process is different if you are in Sigma Audio Mode, rather than in the “click” Audio Mode. While trying to enter Setup Mode with Sigma Mode enabled, once the screen displays the firmware number and then begins the Sigma countdown, press the Mode button three times. 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” Audio Mode. Entry to Setup Mode can be confirmed when 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 by tapping the MODE button. Tap 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 by pressing the UNITS button for at least a half second. Pressing the UNITS button again while the page selection is active will return to the Setup Detector Selection. Pressing the UNITS for at least a half second again will exit, or holding the UNITS button for approximately 5 seconds will exit from anywhere in the menu. Note: If the menu is not exited properly, any changes made will not be saved. SETUP PROTECT: The Model 3001 parameters can be protected from unauthorized changes via the internal switch located on the Model 3001 circuit board. To change the switch, open the battery compartment and remove the batteries from the Model 3001. Next, loosen the six pan head screws that fasten the bottom cover. Ludlum Measurements, Inc. Page 4-4 November 2020  Model 3001 Multi-Detector Survey Meter User’s Manual Section 4 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 3001 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. There are three different options for protect mode, which can be set through Lumic Calibration Software. Locate the Parameter “Device Setup Prtct” in the Others tab. Enter the desired option into the “Value” field. - Normal: All Parameters are protected from change through the device menu. - Bypass Alarms: All Parameters except for Rate and Count Alarms are protected from change through the device menu. - Bypass Alarms Count: All Parameters except for Rate Alarms, Count Alarms, and count time are protected from change through the device menu. 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 3001 display backlight can be set to 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. Note: Setting the display backlight for continuous-on operation can result in reduced battery life. The backlight can be configured to always be off as well through the device menu or Lumic Calibration Software. Setup Mode Operation 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 Ludlum Measurements, Inc. Page 4-5 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 4 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. Tap the MODE button to choose the Setup Page. Once the desired Setup Page is shown, tap the UNITS button to move to the first parameter of that Setup Page. Long-pressing the UNITS button will exit the menu. Figure 11: Setup Page Selection display (showing page 4). Long-pressing the UNITS button, no matter what parameter is shown, will first return the user back to the Page Selection screen and then exit if held for approximately 5 seconds in total. Exiting can also be accomplished by one or two individual long presses (at least a half second) of the UNITS button depending on where the user is in the menu. (If on the page selection, only one press will exit, but if viewing an individual parameter, two presses will be required.). The list below shows the four setup pages and the parameters, in order, on each page. Model 3001 List of Parameters (in order) Page 1 (P-1)  Calibration Constant Mantissa  Calibration Constant Exponent  Dead Time Correction 1  Dead Time Correction 2 Mantissa  Dead Time Correction 2 Exponent  Efficiency  High Voltage Setting  Pulse Threshold  Detector Current Overload Threshold  Loss of Count Alarm Time Ludlum Measurements, Inc. Page 4-6 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 4 Page 2 (P-2)  Primary Units and Minimum Display  Primary Units Maximum Display  Primary Units RATE/MAX Mode Alarm 1  Primary Units RATE/MAX Mode Alarm 2  Primary COUNT Units and Minimum Display  Primary COUNT Units Alarm 1  Primary COUNT Units Alarm 2 Page 3 (P-3)  Secondary Units and Minimum Display  Secondary Units Maximum Display  Secondary Units RATE/MAX Mode Alarm 1  Secondary Units RATE/MAX Mode Alarm 2  Secondary COUNT Units and Minimum Display  Secondary COUNT Units Alarm 1  Secondary COUNT Units Alarm 2 Page 4 (P-4)  Response Time  Auto Response Rate  Operational Modes  Count Time  Auto Shutdown Time  Backlight Threshold  Sigma Audio  Dual Level Audio Page 5 (P-5)  Datalogging Mode  Month  Day  Year  Hour Ludlum Measurements, Inc. Page 4-7 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 4  Minute  Second Note: Parameters on Page 5 (P-5) are not user editable using the instrument Setup Mode. To edit these parameters, please use the Ludlum Lumic Calibration or datalogging Software. Setup Parameter Adjustment: Tap (pressing the button and releasing under a half second) the MODE button to adjust the value for the selected item. When the appropriate value is selected for that item, tap the ON/ACK button to move to the next item. When the desired value is displayed, tap 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 parameter’s position will be blinking. When the Model 3001 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 3001 is as follows: Setup Page 1 Calibration Constant Mantissa (Default 200) - Tap 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 selected exposure unit. Available values are: Ones Place (0-9) Tens Place (0-9) Hundreds Place (1-9) Calibration Constant Exponent (Default 6) - Tap 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 selected exposure unit. Available values are: Ones Place (0-9) Tens Place (0-1) Dead Time Correction (Default Varies) - Tap ON/ACK to select the value to adjust, and MODE to adjust the value. Value is in microseconds. User should be able to zero when checking instrument with pulser or function generator. Otherwise, higher count rates will result in non-linearities. Available values are: Ones Place (0-9) Tens Place (0-9) Hundreds Place (0-9) Ludlum Measurements, Inc. Page 4-8 November 2020 Model 3001 Multi-Detector 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 µsec ±5 µsec 100e+08 Model 44-6 100 µsec ±35 µsec 709e+05 Model 44-7 262 µsec ±35 µsec 139e+06 Model 44-9 85 µsec ±35 µsec 200e+06 Model 44-38 100 µsec ±35 µsec 709e+05 Dead Time Correction 2 Mantissa (Default 0) - Tap 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 (1-9) Dead Time Correction 2 Exponent (Default 0) - Tap ON/ACK to select the value to adjust, and MODE to adjust the value. Available values are: Value between (-6 to -12) Efficiency (Default 15.0%) - Tap 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, i.e. the efficiency of the detector is calculated by dividing the count rate received 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 3001 display. But if the user desires to have the Model 3001 show results in terms of dpm/100 cm2, the user could manipulate the efficiency to produce this result by multiplying the efficiency times the ratio of the detector area to 100 cm2. For example, using a detector with an area of 15 cm2, if we start with 10% efficiency to measure in dpm, then the parameter could be changed to 1.5% to measure in dpm/100 cm2. Ludlum Measurements, Inc. Page 4-9 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 4 Or likewise for Bq/cm2, efficiency could be calculated as: efficiency = count rate/disintegration rate*detector area (in cm2). For example, with the same detector as above with an area of 15 cm2, and starting with an efficiency value of 15%, then the parameter could be changed to 225% to measure in Bq/cm2. High Voltage (Default 900 Volts) - Tap 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) - Tap 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) Note: Audio is enabled for this parameter only for east of setting. Detector Current Overload Threshold (Default 100) - Tap 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) A long press (at least a half second) of the DETECTOR button will cause the display to show the actual live current reading. Repeating this process will return you back to the overload threshold setpoint. Ludlum Measurements, Inc. Page 4-10 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 4 Loss of Count Alarm Time (Default 60 seconds) - Tap 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) Setup Page 2 Primary RATE/MAX Units and Minimum Display (Default 0 µR/hr) - Tap 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 (See list below.) cpm kcpm cps kcps dpm kdpm Bq kBq µR/h mR/h R/h µSv/h mSv/h Sv/h Primary Units RATE/MAX Maximum Display (Default 999 mR/hr) - Tap 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; µ, m or none for R/h and Sv/h) Primary Units RATE/MAX Mode Alarm Point 1 and 2 (Default 000) - Tap 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 flash to indicate Alarm 1 and will be on solid to indicate Alarm 2. Set this Alarm to 000 to disable. Available values are: Ones Place (0-9) Tens Place (0-9) Ludlum Measurements, Inc. Page 4-11 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 4 Hundreds Place (0-9) Number of Decimal Places (0, 1, or 2) Range (k on or off – cpm, cps, dpm, Bq; µ, 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. Primary Count Units and Minimum Display (Default 0 µR) - Tap 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 µR/h µR/h µR kcps c mR/h mR/h mR cpm cpm R/h R/h R kcpm c Bq Bq µSv/h µSv/h µSv kBq d mSv/h mSv/h mSv dpm dpm Sv/h Sv/h Sv kdpm d Ludlum Measurements, Inc. Page 4-12 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 4 Primary Count Alarm Point 1 and 2 (Default 000) - Tap 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 µSv will. The ALARM LCD Segment will flash to indicate Alarm 1 and will be on solid to indicate Alarm 2. 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; µ, 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. Setup Page 3 Secondary RATE/MAX Units and Minimum Display (Default 0 cpm) - Tap 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 (See list below.) cpm kcpm cps kcps dpm kdpm Bq kBq µR/h mR/h R/h µSv/h mSv/h Sv/h Secondary Units RATE/MAX Maximum Display (Default 999 kcpm) - Tap 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, or 2) Range (k on or off – cpm, cps, dpm, Bq; µ, m or none for R/h and Sv/h) Ludlum Measurements, Inc. Page 4-13 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 4 Secondary Units RATE/MAX Mode Alarm Point 1 and 2 (Default 000) - Tap 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 flash to indicate Alarm 1 and will be on solid to indicate Alarm 2. 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; µ, 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. Secondary Count Units and Minimum Display (Default c) - Tap 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, or 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 µR/h µR µR/h kcps c off mR/h mR mR/h cpm cpm R/h R R/h kcpm c off off Bq Bq µSv/h µSv kBq d off µSv/h mSv/h mSv mSv/h dpm dpm Sv/h Sv Sv/h kdpm d off off Ludlum Measurements, Inc. Page 4-14 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 4 Secondary Count Alarm Point 1 and 2 (Default 000) - Tap 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 flash to indicate Alarm 1 and will be on solid to indicate Alarm 2. Set this Alarm 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; µ, 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. Setup Page 4 Response Time (Default 0 - auto) – Tap 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 3001 (see the next parameter). Available values for the Response Time (in seconds) are: Ones Place (0-9) Tens Place (0-6, 6 forces max response time of 60) Auto-Response Rate (Default S) - Tap MODE to select Fast (F) or Slow (S). When operating in Auto-Response mode, the Model 3001 will vary 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: Ludlum Measurements, Inc. Page 4-15 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 4 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 The Model 3001 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 change 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) - Tap 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 Ludlum Measurements, Inc. Page 4-16 November 2020 Model 3001 Survey meter User’s Manual Section 4 Count Time (Default 1 minute) - Tap 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 are: 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, or press the UNITS button for at least a half a second two times. Auto Shutdown Time (Default 0 - off) - Tap 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) - Tap MODE to adjust the value. Available values are: LO – Backlight comes on at a higher ambient light level There are two different options for Backlight Threshold LOW, which can be set through software. Locate the Parameters in the Others tab. Enter the desired number into the “Value” field. - Low Light Turn On: The value will set the threshold that the backlight will turn on at. (This should be lower than the Turn Off value.) - Low Light Turn Off: The value will set the threshold that the backlight will turn off at. (This should be higher than the Turn On value.) HI – Backlight comes on at a lower ambient light level There are two different options for Backlight Threshold HIGH, which can be set through software. Locate the Parameters in the Others tab. Enter the desired number into the “Value” field. Ludlum Measurements, Inc. Page 4-17 November 2020 Model 3001 Survey meter User’s Manual Section 4 - High Light Turn On: The value will set the threshold that the backlight will turn on at. (This should be lower than the Turn Off value.) - High Light Turn Off: The value will set the threshold that the backlight will turn off at. (This should be higher than the Turn On value.) OFF – Disables backlight Sigma Audio (Default OFF) - Tap 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 properly until the 8-second background is completed. If the 8-second background count is too low or too high, the device will continually beep until an acceptable background count rate (500 cpm - 200 kcpm) is obtained. Sigma Audio is disabled in Count Mode. If Count audio and Sigma Audio are enabled, Count audio will be “click” audio. Dual Level Audio (Default OFF) - Use MODE to adjust the value. Available values are: ON – Dual Level Audio Enabled (Audio settings: Hi, LO, and Mute) OFF – Dual Level Audio Disabled (Audio settings: Hi and Mute) Setup Page 5 Note: Parameters on Page 5 (P-5) are not user editable using the instrument Setup Mode. To edit these parameters, please use the LMI Lumic Datalog Software. Ludlum Measurements, Inc. Page 4-18 November 2020 Model 3001 Survey meter User’s Manual Section 4 Datalogging Mode (Default 1) – Displays the current Datalogging Mode selection for the device. Valid values are: 1-3 Month (Default 1) – Displays the month of the Real Time Clock. Available values are: 1-12 Day (Default 7) – Displays the numerical day of the Real Time Clock. Available values are: 1-31 Year (Default 14) – Displays the decade and year of the Real Time Clock. Available values are: 00-99 Note: Valid year range is 2000-2099. Hour (Default 16) – Displays the hour of the Real Time Clock in 24-hour format. Available values are: 0-23 Minute (Default 30) – Displays the minute of the Real Time Clock. Available values are: 00-59 Second (Default 00) – Displays the second of the Real Time Clock. Available values are: 00-59 Ludlum Measurements, Inc. Page 4-19 November 2020 Model 3001 Multi-Detector Survey Meter User’s Manual Section 5 5 Section Datalogging The datalogging feature of the Model 3001 allows the user to log radiation readings with the use of a handle-mounted LOG button. Data can be logged in any of the Model 3001’s operational modes (RATE, MAX, and COUNT). Up to 1000 data points can be taken and stored internally. Depending on the chosen Datalogging Mode, the user can quickly save logged data using a single Location ID, or select from up to 250 stored Location IDs. A Real Time Clock (RTC) is utilized to time and date stamp each datalog entry. The saved log data and stored location IDs can be viewed, downloaded, and erased using the LMI Lumic software kit, which includes a USB cable. Editing of datalogging parameters and RTC via setup mode on the instrument is disabled. Setup of the datalogging parameters is also done through the LMI Lumic software. The advanced user or administrator can set:  Datalogging Mode  Real Time Clock (RTC) Values  Location IDs Ludlum Measurements, Inc. Page 5-1 November 2020 Model 3001 Survey meter User’s Manual Sect