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GKplus2 K103 LND7317 Geiger Counterby Atomic.dave
[email protected]
This is yet another one of a kind, custom hand-made Geiger
Counter built by Atomic.Dave. This is the GKplus2-a replacement to
the popular full featured Cadillac Meter. 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
about 100 of them.Much of the information for this kit is available
at the developers website. This is more of a kit for someone who
knowsa little bit about electronics but doesnt have the time or
patience to build it, or would rather someone else do all thedirty
work. Having been built by me, of course there may be some
imperfections, although as minimal as possible.This particular unit
not only has a wireless remote control for in field programming, it
also has the very sensitive pan-cake American tube, the LND7317.
Also provided on the CD is the developers User guide and assembly
instructionsfor further information on this unit and its operations
and functions as well as otgher troubleshooting.
OPERATIONThree Triple Pole switches- ALL OFF IN CENTER POSITION.
With 2 green momentary switches in between.
POWER SELECT ALARM NULL SOUNDUP ON IN ON IN CLICK
MIDDLE OFF OUT OFF OUT OFFDOWN CHARGE LED ONLY TONE
A. POWER controls the power and charging of the unit. Up turns
on the unit with internal battery power, Mid-dle turns if off, and
Down is for charging the unit. When the unit is charging, the tiny
RED LED on the lowerright side below the USB port and switch will
remain constant RED while charging, and when charging iscomplete,
it will turn BLUE. If you wish to power the unit with the USB in,
and bypass the batteries for ex-tended periods. Switch POWER to
middle position, and flip up switch on lower right of unit next to
the miniUSB port. This will keep the batteries unused while you
power with any 5v source.B. SELECT - momentary switch does 2
things. When you first power on the unit, you will see:
GK-plus LND7317 v1.15This 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 by default it now says GK6-plus, and the second line
says the tube name and the software version. (LND7317 and
v1.10)
The First window will show the info below. The first line is the
current uSv to CPM conversion rate. For aLND7317 pancake tube, the
conversion rate is 345.
uSv/h=345CPMVcc=5.05VAlarm=200CPMGKLOG007.CSV
Set Alarm?
02/16/14 01:30pmI have preset this for your Tube, but later if
you wanted to you could change this rate with either Arduino,
or with the Sony wireless remote control which I will explain
later. The second line refers to the current volt-age that your
system is running at. This is a 5 volt system. The 4000mAh 3.7v
lipo battery is boosted to 5vwith a pololu booster. Everytime you
start up your GC (geiger counter) it will show you this so you will
alwaysknow your current voltage.
Then the Current Alarm amount that is set is shown, and the blue
boxed area says Set Alarm? at thatpoint you can push the Select
button to incrementally change the Alarm threshold number. Once you
stopholding the button and wait, it will be set to the current
number shown on the screen and will stay there untilyou change it
either again restarting and waiting for this part, or by using the
included remote control tochange it. You can also choose from units
of measurement such as CPM or uSv/h for the Alarm with the re-mote.
It also acts like a stopwatch starter for the scaler mode. It has
two preset times of 1 minute and 10minute averaging. You can change
the second one only with the remote, or the sketch when connected
to pc.The first one (1 minute) is default and unchangeble. You can
always change this later at any time without acomputer and with the
remote. At the bottom of the window is todayss date and time. The
system now hasan internal clock with backup battery.
Finally this select button can also be used as a mute switch
when an alarm point is reached, and thepiezo is blaring, just hit
this select button once and it will mute the alarm.C. ALARM
controls the Alarm LED and Piezo. Up for both on, Middle for both
off, and Down for LED only on.This makes for a silent visual
alarm.D. NULL momentary switch and works only when in Tone mode for
the event speaker. When you are scanningin Tone mode, you can push
this to reset the sensing to zero as you approach a sample.E. SOUND
switch controls the Event speaker. Up for Standard Click mode,
Middle for mute, Down for ToneMode. More information on Tone Mode
can be found on the User guide pdf on the cd.
Two BLACK Tactileswitches are described inthese two grey
boxes.
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LEDSRight away, you will hear the clicking of the speaker as
your GM tube picks up radiation events. There are twoLEDs below the
LCD. The Left is GREEN which is for radiation events and coincides
with the clicking speakerwhich can be muted with the sound switch
in middle position. The Right one is RED for the Alarm which
willonly light up when a set alarm threshold is reached. It can be
turned on or off with the Alarm switch in middleposition. Once
again when there is an alarm threshold reached, you can alway hit
the select button to mutethe piezo and shut off the RED LED if you
dont want to move the sound switch to middle position.
OTHER SWITCHES, BUTTONS, PORTS, DIALS 1. GPS POWER SWITCH - used
to help reduce battery life. When using this switch, I recommend
turning offthe unit first. This is located at the very top left of
the unit.2. USB POWER SWITCH - This is used for controlling the use
of the USB 5v power that is coming thru thisport when plugged into
a 5v source such as a wall charger, solar panel, cigarette adapter,
laptop, or com-puter. When up, and the power switch in the middle,
this will power the unit and bypass the batteries. Whendown, and
power switch is down, this will charge the units internal 4000mAh
3.7v lithium ion battery. Just tothe left of the USB port is the
charging LED indicator. RED for charging, and BLUE when charging is
com-plete. Protective overcharge circuitry is built into the
included Lithium Ion rechargeable battery.3. USB MINI INPUT PORT -
(IN port on right side of unit) used to connect to pc of mac for
sketch editing viaarduino programming. It can also be used for
radiation data logging, using Radiation
Logger:http://www.rhelectronics.net/store/radiation-logger.html 4.
MULTIPORT- (OUT port on the left side of unit) used for Geiger Bot
(with the included G-Bot cable). Justplug in the Geiger Bot cable
into this with the 3 conductor plug, and the 4 conductor into your
iphone or ipad.It also serves as an audio output for silent
listening with headphones, or with the a 3 conductor to 3
conduc-tor M-M audio cable, you can run sound based data logging
software.
SD CARD WRITER - This meter is equipped with an internal SD card
writer (FREEblank is inclluded) Always turn OFF the unit while
removing or inserting the SD card.The default auto write of all
info to the card is set to 1 minute, but you can change thateasily
with the remote control. When inserting the SD card, place the
meter back downon a table, make sure the metal tabs onthe card are
up, and are going into theslot of the meter. Do NOT force it
andgently nudge it in making sure you aresliding it in in a
horizontal motion. It willstop when the card is about .25 com-ing
out of the slot as shown in the pic-ture left. The file that is
written to thecard is saved as a .csv file which is Mi-crosoft
Excel compatible.INSTALOG BUTTON - The button atthe top of the
meter just below the SDcard. Push this and all info currently
happening will be written to the SD card. Otherwise, the SDcard
writer has a set time you can adjust to record at intervals- info
such as Time, Date, Speed, altitude,GPS coordinates, CPM,
uSv/hr.
As shown in the diagram to the right, the file is broken out
into columns: Date, Time, Lat, Lon, Alt(m),Vel(km/h), CPM, uSv/h,
Vcc. By copying a column(s) of data, you can make anytype of
bargraph or piechartthat excel is capable of creating. (note: when
removing or replacing the silicone boot, remember to remove the SD
card first, and alsobe sure to avoid rubbing the INSTALOG button
with boot or damage will occur to the switch, andwill need
replacing.)
NEW 1.8 Serial Display 128x160 SPI TFT LCD module w/
SDsocketSoftware features A graph on the main screen shows last 13
minutes of activity and
can be set to auto-resize based on peak or avg. New dose type
xBg shows the percent of average
background set Max CPM, speed and altitude (if GPS used), low
battery and other info are
shown on the "status line" 3 choices for color scheme of the
main screen Bargraph on the bottom of the screen also shows
activity and is very responsive Scaler screen shows two scaler
periods. Second scaler period length set by menu. Logging to SD
card and serial output. Information is saved to a .csv file that
can
be opened in Microsoft Excel for mac or PC.
scaler screen
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Display menu options (these options are contolled by the remote)
SCREEN ORIENTATION screen and text adjust for 4 positions portrait
or landscape DISPLAY SCHEME set 1 of 3. (If you can upload a new
sketch, its easy to change one to your own tastes.) BRIGHTNESS -
Adjust the backlight brightness GRAPH SCALE MODE - two "Auto" modes
allow the graph to update its range based on the max peak or
average. BACKGROUND CPM - the average background rate you enter is
used if the DOSE UNIT is set to xBg. TIME SETTINGS set time and
date if not using a GPS also Auto DST and various time date,
formats and metric or imperial units GPS MODULE choice of one of
the four supported GPS module types (EM-406a/411, U-blox 6,
Adafruit MTK3339, SkyTraq ST22) DISP PERIOD, SD CARD LOG PERIOD,
SERIAL LOG PERIOD, SCALER PERIOD settable CPM->(unit), ALARM
THRESHOLD, BARGRAPH MAX CPM, TONE SENSITIVITY - settable
GPS MODULEThis unit is equipped with an internal (Ublox NEO-6M)
With its separate power switch flipped up/on, it will automatically
boot up when you
power up your meter. When you see the Velocity and Altitude on
the lower left side of the display, you are synced.
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
built in conversion be-
tween them. Instead the CPM->[DOSE] RATIO is adjusted
depending on the name of the DOSE UNIT selected. For example,
175.43 is the de-fault set for the SBM-20 with uSv as the dose
unit. Suppose you pick "mR" as the dose unit name, and want to
measure in milirems. ("mR" morecorrectly abbreviates as
milliroentgens but is used to save display space.) The rem is
defined as .01 seivert. Therefore, to use the same ratio thatwas
designed for the tube, you would multiply that ratio by 10. You
would enter a CPM->[DOSE] RATIO as 175.43 x 10 or 1754.3.
Likewise if youwanted 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. So the
CPM->[DOSE]RATIO for actual mR would be 175.43 x 10 x .96 or
1684.1. (for uR it would be 16.84)
PLEASE 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 thesame
folder as your Arduino program is and remember where that is as
that will be where you go to save your sketch everytime you make
achange to it. There will also be a Library folder that will also
need to be in the same folder. Just remember that the folder has to
be the same exactname as the sketch name is. And also within
Arduino, you will have to go to preferences and show Arduino where
your default sketch folder is.
ARDUINO SETTINGS: Brohogan Software 1. Open Arduino2. Open the
saved sketch .ino file, connect your Geiger counter to the USB with
power switch off.3. Verify the file by clicking the little check
mark icon.4. Click TOOLS, and Select Board type as Arduino UNO, and
select serial port as the top tty choice.5. Click Serial Monitor
(top right looking glass icon). Set Baud rate to 9600 and you
should see the CPM, uSv and geiger counter voltage datacoming up
once per minute.
For 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/
Select options Select Geiger Counter Select LND712 CS137 Adjust
Conversion factor to your tube:
123 for LND712175 for SBM-20
360 for LND7317Select I/O Settings
Auto Adjust OFF(you may need to play
with this setting) RMS Window 1
Delay Window 30Volume Thresh 20000
Ultrafast Rates ON
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HARDWARE1. DIY Geiger counter kit GKplus by Brohogan, Running
operating system 1.10
ATmega1284P processor User Adjustable 1100v max HV Some of the
main hardware features of the GK-Plus:
- The board uses an ATmega1284P MCU with 4x the program space of
the standard kit.- A 128x160 1.8 TFT color graphic display is
used.- Improved components provide >1100V max HV.- SD card, GPS,
IR remote, and clock features from Logging Shield kit are
supported.- The HV, click, and processor areas are separated, and
have their own ground planes.- All I/O pins broken out. The board
can be used as a 1284 development platform.- Space left to replace
the voltage regulator with a buck/boost reg for more power
options.
Sparkfun FTDI Storage/transport case Pelican 1060 GM Tube LND
7317, with gasket riser and Stainless steel grill Ludlum SCRN/M44-9
SS Geiger Bot ready includes FREE custom cable Mini USB charging
with multicolor status LED Ublox NEO-6M GPS Module
POWERING YOUR GEIGER COUNTER:1. With internal Lipo battery
(Power switch in UP position)2. With PWR switch OFF (middle), USB
cable plugged into USB port on RIGHT side of geiger, USB PWR switch
on top right side of unit switched
UP, then plug USB cable into:a. Computer or laptop USBb. Wall
charger block (included)c. Standard 5v USB Cigarette adapter
(included)
POWER and OTHER SYSTEM ITEMS: This system is capable of
producing 900+ volts, so be careful or you may get zapped when
han-dling the system while it is powered on. 3.7v 4000mAh lithium
ion, with protective circuit PCM Lipo charger 1 cell Li-ion or LiPo
based TP4056. External power supply or USB. 25 * 19 * 10mm,
Charging current: 1A. Pololu 5v up/down boost regulator #2119
ENCLOSURE - TAKACHI LCS165H-N-WLDimensions: 85mm X 40mm X
171mmhttp://www.takachi-enclosure.com/data/c14/hand04_1401.pdf
REPAIRS:If the unit fails for some reason with six months from
purchase, I will be more than happy to do any maintenance you need
at no charge exceptshipping.
PACKAGE CONTENTS:In your package you will find: Geiger Counter
with LND7317 Pancake Tube with Pelican 1060 case, (2) Cables:
Geiger bot 3 to 4 conductor, MiniUSB to standard USB2 with wall
charger and cigarette adapter. CD with software and documents,
Manual, RAD stickers, and extra faceplate la-bels. Sony RM-EZ4
Remote control, SD card.
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Appendix V - Main Board Schematic
(larger schematic in browser here)