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    K72-LND7317 BORG+plusGeiger Counterby Atomic.dave [email protected]

    This is a one of a kind custom hand-made Geiger Counter built by Atomic.Dave. It is based on a kit designed by John

    Giametti (username: Brohogan) I have been building his DIY Geiger counters for over two years having built and sold

    round 70 of them. All information for this kit is available at the developers website. As I have said before, this is more of a

    t for someone who knows a little bit about electronics but doesnt have the time or patience to build it, or would rather

    omeone else do all the dirty work. Having been built by me, of course there will be some imperfections, although as mini-

    mal as possible. This particular one is a culmination of all of its predecessors. It is certainly one of my more advanced kits

    aving more options then all accept the Cadillac, and I will do my best to explain how to use it. Once you have used it a

    ouple times, it will be a piece of cake.

    OPERATION

    our Triple Pole switches- ALL OFF IN CENTER POSITION, AND TWO BLACK MOMENTARY SWITCHES

    SEL PWR LITE ALM SND NULL

    UP ALARM ON ON/ON ON/ON CLICK TONE

    MIDDLE SCALER OFF/USB OFF OFF OFF RESET

    DOWN CHARGE ON/OFF ON/OFF TONE

    A. (SEL) SELECT switch does 2 things. When you first power on the unit, you will see this first screen:

    Atomic.Dave K72BORG+ 7317 V10.2

    This customized first welcome window can easily be changed if you want, by doing a little programming in Arduino.

    Refer to the DIY site for directions at the SOFTWARE section. But the default is now set to my name, Kit 72, and the sec-

    nd line is the Geiger Counter name, and the version of software that the AT328 chip is running V10.2.

    The second window will show this:

    334 CPM=1 uSv/hRunning at 5.24V

    The first line refers to the conversion rate of CPM to uSv/hr for the LND7317 tube (334) this can be changed either in

    he program sketch, with Arduino, or with the Sony wireless remote control which I will explain later. The second line refers

    o the current voltage that your system is running at. This is a 5 volt system. The 3000mAh 3.7v lipo battery is boosted to

    v with a pololu booster. Everytime you start up your GC (geiger counter) it will show you this so you will always know your

    urrent voltage.

    The third window will show something like this:

    Alarm Set ?Now at 200 CPM

    At this point, you can hit the Select button to incrementally change the Alarm threshold number. Once you stop hitting

    he button and wait, it will be set to the current number shown on the screen and will stay there until you change it either

    gain restarting and waiting for this part, or by using the included remote control to change it. You can also chose from

    nits of measurement such as CPM or uSv/h for the Alarm.

    B. (PWR) POWER switch controls the power and charging of the unit. Up turns on the unit, Middle turns if off, and Down is

    or when you charge the unit. When the unit is charging, the RED LED on the lower left side will remain constant REDwhile charging, and when charging is complete, it will turn off. If you wish to power the unit with the USB in, and bypass

    he batteries for extended periods. Switch in middle position, and flip up switch on upper right of unit next to the USB. The

    eft upper switch is to turn on and off the IR used for the remote control.

    C. (LITE) LIGHT switch controls the Event LED (BLUE) and the LCD Backlight. Up turns on both, Middle turns both off,

    nd Down turns the LED on, and the Backlight off.

    D. (ALM) ALARM switch controls the Alarm LED and Piezo. Up for both on, Middle for both off, and Down for LED only on.

    his makes for a silent visual alarm.

    . (SND) SOUND switch controls the Event speaker. Down for tone mode, Middle for mute, and Up for Standard Click

    Mode. More on Tone Mode later.

    . NULL momentary switch and works only when in Tone mode for the event speaker. When you are scanning in Tone

    mode, you can push this to reset the sensing to zero. More on this later.

    EDS

    Right away, you will hear the beeping of the piezo as your LND7317 GM tube picks up radiation events. There are now

    nly 2 LEDs below the LCD. The Left one is the BLUE which is for radiation events and coincides with the beeping piezo

    which can be muted with the mute switch. The Right one is RED for the Alarm which will only light up when a set alarmhreshold is reached. The piezo for the alarm and events are located below the grilled vent below the display.

    OTHER SWITCHES, BUTTONS, PORTS, DIALS

    he upper left side switch is used to turn on and off the IR for the remote control. LEAVE THIS OFF WHEN NOT

    SING THE REMOTE TO PROGRAM THE UNIT. If you leave it on, the IR has a tendancy to pick up signals from

    ther remote controls and will cause the unit to not function properly. The upper right side switch is used to

    ower the unit with the USB cable plugged in. Flip this up to turn it on. Down when not powering the unit with the

    SB. When running the unit this way, please flip the POWER switch to the middle position.

    A. Starting on the left side top of the GC is the LCD contrast dial. As the LCD is used, it might get to a point for you to

    eadjust the contrast for it. Not a big deal, while the backlight is on, gently take a small screwdriver and turn it to the left or

    ght until it appears to have the best contrast.B. Below the contrast pot and IR swtich on the same side is the output multi-port used for Geiger Bot (with the in-

    uded G-Bot cable), and for Geiger Graph and RAD OSX (with the optional USB/FTDI cable) Just plug in the Geiger Botable into this with the 3 conductor plug, and the 4 conductor into your iphone or ipad. Or plug the optional 3.5mm to USBable into the port, and into a USB on your mac or PC, then follow instructions to run those programs. It also serves as an

    mono audio output for silent listening with headphones, or with the included 3 conductor to 3 conductor M-M audio cable,ou can run sound based data logging software.

    Two momentary switches aredescribed in these two BLUEboxes. The Select is to the leftof the tube, and the NULLreset is to the right

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    C. On the right side of the GC below the USB power switch is the Mini USB FTDI output/input for programming in Ar-

    uino. This also is used to charge the internal Lithium Ion battery (with the power switch in the bottome position.) Or it can be

    sed to power the GC for extended periods, however when you power it this way, I would advise to turn off the LCD backlight.

    ut its ok to turn it on once in a while, but I wouldnt leave it on for extended periods. When uploading any new changes to the

    rogram sketch, you will need to have this switch in the up position white it is plugged into your pc with the USB cable.

    REMOTE CONTROL SYSTEM: ONLY TURN ON IR WHEN PROGRAMMING SYSTEM. TURN OFF AFTER.

    This adds some conveniences such as the ability to adjust cer tain things on the GC without the need to plug into your

    C or mac. It is already setup to work. All you have to do is turn on the IR sensor then point the remote towards the IR

    window (above the display inside and hidden), and push the power button on the remote to star t. As soon as you do that

    hese options will pop up. Use the channel button to move thru each option, and use the volume buttons to move up or

    own within those options. You can also use the number pad to input numbers rather than using the up down of the vol-

    me. After you reach the desired amount you push ENT to enter it into the system.

    The keys on the Remote Control perform these functions:

    On/Off enter or exit the menu system. "DISP PERIOD (MS) is the first prompt you will see.

    Channel Down or Down Arrow moves to the next menu option

    Channel Up or Up Arrow moves to the previous menu option

    olume Up or Right Arrow increments the value already set for the current option or toggles an option

    olume Down or Left Arrow decrements the value already set for the current option or toggles an option

    nter finalizes the entry in the current menu option if changes were made. When used out of the menu, it acts like the

    null" button to reset the tome.

    Digits 0-9 for direct entry of values (instead of Volume or Arrows) must use Enter after using digits.

    Decimal Point - enters a decimal point - used when setting the ratio.

    Mute used when out of the menu mutes the speaker when in "tone mode" (see below) or the piezo if that mod has

    een made to the Geiger board.

    Menu Options:

    nitially, menu options are set to defaults. Settings made will be stored in EEPROM on the ATmega328, so they will be in

    ffect when you power back on. Here is a brief description of each menu option:

    DISP PERIOD (MS) - The number of milliseconds before the display refreshes. 5000 (5 sec.) is a good setting.

    Display counts are based on a "running average" I do not recommend settings of less than 5 seconds.)

    OG PERIOD - When to write the CPM, 'dose', and MCU voltage to the serial output. Zero means logging is turned off.

    CPM->[DOSE] RATIO - Sets that ratio for the type of GM tube used. Note this ratio will depend on the dose unit being displayed

    ALARM THRESHOLD - When the CPM or DOSE units is greater than this value the alarm is triggered. (See Alarm and

    econd Screen below) Unlike the button, any value may be entered.

    DOSE UNIT - Use the arrow keys to select the name of the unit for the dose value - "uSv/h", "uR/h" or "mR/h".

    ALARM UNIT - Sets whether the alarm is based off of CPM or the DOSE unit. Use the arrow keys to select.

    CALER PER (MIN) - Sets the period for the second scaler.

    BARGRAPH MAX CPM - Sets the CPM that will give a full scale reading on the bar graph. This also affects tone mode

    see below)

    ONE SENSITIVITY - Determines how sensitive the tone is to changing activity. Low numbers are more sensitive.

    SE RADLOGGER? (v10.1) - When "Yes" serial output is compatible with Radiation Logger application - see Android /

    C BT Graphing page.

    REG. VOLTAGE - Displays the voltage powering the MCU (Vcc). To a large degree, this represents the state of the battery.

    Note that each menu setting has a minimum and a maximum setting. Entries that are out of bounds will revert to the mini-mum or maximum.

    DISPLAY BAR GRAPH:

    The display has a new bar graph style with placeholders and is much more responsive. It now updates 20 times per sec-

    ond. The tone is also updated at this rate when used.

    Auto-precision - decimals are dropped from the displayed dose rate as it gets larger.

    Beginning with v10.1 the LOG PERIOD can now be set to intervals of less than 1 minute. Valid settings are OFF, 2s, 3s,

    4s, 5s, 6s, 10s, 12s, 15s, 20s, 30s, and 1 minute intervals up to 720 minutes.

    "Tube Select" is still supported where grounding I/O pin 9 will use an alternate ratio for CPM to Dose unit. The CPM-

    >DOSE RATIO in the menu will set and save which ever ratio is selected at the time it's used. This allows setting of both

    the primary and alternate ratios.

    The current state of the the mute button and the scaler mode are saved in EEPROM and the Geiger kit will come up in

    those states the next time it's powered on.A "reset all" #define can be set. When uploaded the EEPROM is reset to all the default values. This may be useful if the

    EEPROM contains invalid data from a previous release.

    Another #define can put the counter in a test mode. 360 CPM is simulated. Interrupts are not producing the count so it

    can be affected if tone mode is on.

    Major restructuring of the code base including use of tabs and memory saving techniques.

    ABOUT DOSE UNITS:

    The menu allows you select the name of the dose unit that appears on the display. However, to be clear, there is no

    uilt in conversion between them. Instead the CPM->[DOSE] RATIO is adjusted depending on the name of the DOSE

    NIT selected. For example, 175.43 is the default set for the SBM-20 with uSvas the dose unit. Suppose you pick "mR"

    s the dose unit name, and want to measure in milirems. ("mR" more correctly abbreviates as milliroentgens but is used to

    ave display space.) The rem is defined as .01 seivert. Therefore, to use the same ratio that was designed for the tube,

    ou would multiply that ratio by 10. You would enter a CPM->[DOSE] RATIO as 175.43 x 10 or 1754.3. Likewise if you

    wanted microrems ("uR") you would divide the ratio by 10 and enter 17.54.

    If you do want to use roentgens (used in older instruments) this source states that they are .96 rem in soft tissue. Sohe CPM->[DOSE] RATIO for actual mR would be 175.43 x 10 x .96 or 1684.1. (for uR it would be 16.84)

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    LEASE REFER TO THE DIY GEIGER COUNTER DEVELOPERS WEBSITE FOR FURTHER INFORMATION:

    http://www.sites.google.com/site/diygeigercounter/ARDUINO Software and Serial-USB connection information:ON the cd you will find the FTDI driver and Arduino program version 1. Install both and restart your mac. Copy the Geiger Sketch folder to the same folder as youuino program is and remember where that is as that will be where you go to save your sketch everytime you make a change to it. There will also be a Library foldhat will also need to be in the same folder. Just remember that the folder has to be the same exact name as the sketch name is. And also within Arduino, you wilave to go to preferences and show Arduino where your default sketch folder is.

    ARDUINO SETTINGS: Brohogan Software system version 10.1. Open Arduino. Open the saved sketch .ino file, connect your Geiger counter to the USB with power switch off.. Verify the file by clicking the little check mark icon.. Click TOOLS, and Select Board type as Arduino UNO, and select serial por t as the top tty choice.. Click Serial Monitor (top right looking glass icon). Set Baud rate to 9600 and you should see the CPM, uSv and geiger counter voltage data coming up once per minor more info go to website under Software section on the DIY geiger counter website. Or go to Arduino.cc

    GEIGER BOT SUGGESTED SETTINGS: (You may have to play with it to get it just right) GO TO: https://sites.google.com/site/geigerbot/

    OTHER SOFTWARE LINKS:

    http://www.blackcatsystems.com/GM/download.html

    http://www.imagesco.com/geiger/geiger-graph.html

    GEIGER GRAPH FOR PC NETWORKS: (cost is around $60. Use the OPTIONAL FTDI 3.5mm to USB cable) This

    s a PC only software.

    Select options Select Geiger Counter Select LND712 CS137 Adjust Conversion

    factor to your tube:

    123 for LND712

    175 for SBM-20

    360 for LND7317

    Select I/O Settings

    Auto Adjust OFF

    (you may need to play

    with this setting)

    RMS Window 1

    Delay Window 30

    Volume Thresh 20000

    Ultrafast Rates O

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    HARDWARE. DIY Geiger counter kit V5.0 by Brohogan, Running operating system 10.2

    . LND 7317 Geiger Muller Tube

    . Power System by TENERGY, Sparkfun and Pololu (please charge the unit until the RED light goes out)

    A. You can power the Geiger in a couple different ways

    1. With internal Lipo battery

    2. With PWR switch OFF (middle), USB cable plugged into USB por t on RIGHT side of geiger then plugged into:

    a. Computer or laptop USB

    b. Wall charger block

    c. Standard 5v USB Cigarette adapter

    d. To power and operate the unit this way for long periods, TURN OFF BACKLIGHT

    . Pelican 1060 Atmostpherically sealed case. This case will protect your delicate geiger muller pancake tube while travel-

    ng in high altitude, or shipping the unit somewhere on an airplane. Always seal the unit inside the case.

    OWER and OTHER SYSTEM ITEMS: This system is capable of producing 900+ volts, so be careful or you may

    et zapped when handling the system while it is powered on.

    A. Tenergy Lithium Ion battery - 3.7v 2600mAh

    http://www.seeedstudio.com/depot/lithium-ion-polymer-battery-pack-3a-p-588.html?cPath=178_183

    Full recharge in 3 hours, provides approximately 40 hour constant use of geiger counter with backlight off.

    Charge with PC/USB will take about 5 hours or more.

    B. USB Lithium Polymer battery charger

    https://www.sparkfun.com/products/10401

    C. Pololu 5V Step-Up/Step-Down Voltage Regulator 2120

    http://www.pololu.com/catalog/product/2120

    D. Sparkfun 5V FTDI Basic Breakout

    https://www.sparkfun.com/products/9716

    ND-7317 GEIGER MULLER TUBE

    nstalled inside this nicely planned out kit is a PANCAKE LND 7317 which senses Alpha, Beta and Gamma. The pancakeube is mounted to the case by a solid copper bracket, with a galvanized 1/8" mesh for protection and silicon feet. It has a

    andle that was placed in a well balanced position. I will be Including and shipping the Geiger Counter inside a Pelican

    150 atmospheric controlled case to protect the pancake from high altitude and pressure implosion during shipping.

    ttp://www.lndinc.com/products/17/

    NCLOSURE

    Dimensions: Serpac - H75 7.2 x 3.65 x 1.2

    ttp://www.serpac.com/h75.aspx

    ttp://www.serpac.com/userprints/H75.pdf

    ELICAN 1060 ATMOSPHERIC CARRYING CASE

    ttp://www.pelican.com/cases_detail.php?Case=1060

    REPAIRS:

    the unit fails for some reason with a year from purchase, I will be more than happy to do any maintenance you need at

    o charge except shipping.

    ACKAGE CONTENTS:

    n your package you will find: Geiger Counter, Pelican 1060 Case, Lead Pig w/ Samples, Sony RM-EZ4 Remote Control,

    4) Cables: Geiger bot 3 to 4 conductor, Audio 3 to 3 conductor, Mini USB to standard USB2 and the FREE Geiger graph

    .5mm to USB serial cable. CD with software and documents, Manual, RAD sticker, and extra faceplate labels.

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    atomic.daveRADIATION DETECTOR

    ALPHA

    BETAGAMM

    AX

    RAY

    BORG+plus

    LND 7317

    POWER

    PWR/CHRGON/PCOFFCHARGE

    LIGHT

    LED/BKLTON/ONOFFON/OFF

    SOUND

    SPEAKERTONEOFFCLICK

    ALARM

    LED/SNDON/ONOFFON/OFF

    SELECT

    ALARMTHRESHOLDTIMER

    NULL

    TONERESET

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    8

    7

    6

    4

    3

    2

    5

    +

    +

    14

    17

    18

    19

    16

    15

    12

    5VBoostIN

    LIPOC

    hrg5VOut

    OPEN

    OPEN

    FTDI5V

    LIPOC

    hrgUSBPOS

    2 6

    1

    2

    3

    4

    5

    6

    1

    2

    3

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    LCD

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    LCD

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    BlueLED

    POS

    LED

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    POS

    1

    2

    3

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    OPEN

    OPEN

    OPEN

    1

    2

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    AlarmP

    iezoPOS

    BRD

    Pin15

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    RedLED

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    Pin15

    RedLED

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    1

    2

    3

    4

    5

    6

    1 3 5

    POWER

    PWR/CHG

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    Bandtoleft

    1KOHM

    RESISTOR

    56KOHM

    RESISTOR

    3.5mm

    Socket

    USB

    Power

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    MULTI-SOFTW

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    1 5

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    9

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    atomic.dave

    RADIATIONDETECTOR

    K72

    ON

    OFF/USB

    CHARG

    ONOFF

    ON/OFF

    ONOFF

    ON/OFF

    CLICK

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