SAIC Exploranium – GR-135 System Manual page: 12
4.0 QUICK START – MANUAL MODE
This section offers a VERY simplified guide to system operation; a more complete description is
available in Section 4+. The manual assumes that unit is being operated with the supplied
DOCKING-STATION (DS) – non-DS users please refer to Appendix C
a) CONNECT DOCKING STATION – connect the DS to an AC source using the cable supplied
b) REMOVE THE GR-135 BOOT – remove the attached Yellow protection boot
b) LOAD BATTERIES - remove rear door and insert 2 batteries – check polarity as marked - ONLY use
the supplied rechargeable batteries. Replace battery clamp and door and ensure the door is correctly
seated.
c) JOYSTICK OPERATION - the JOYSTICK mounted on the handle (see picture above) is the only
control on the instrument. Basic JOYSTICK actions are UP, DOWN, LEFT, RIGHT. Some
operations require a short activation SHORT = less than 0.5secs – or LONG = more then 1
second. ENTER in the manual means LONG DOWN (more than 1 second) – see graphic in
Section 3 above
d) POWER ON - a CLICK DOWN for at least 2 seconds - the unit will power ON and after a few
seconds the MAIN MENU is shown.
e) DOCKING-STATION – place the unit in the DS to charge the batteries
f) STABILIZE – while in the DOCKING-STATION (which has an embedded 0.25uCi Cs137 stabilization
source) select STABILIZE then ENTER (LONG DOWN) and follow display prompts to automatically
set the system gain
e) REMOVE from the DS and attach the Yellow boot for unit mechanical protection
f) SEARCH + DOSE - from the Main Menu, activate the SEARCH+DOSE mode by highlighting the
item in the Main Menu and using ENTER (LONG DOWN) to select. The system display will show
the current count rate in counts/sec while the internal “audio meter” will give an audio response with
the tone related to radiation intensity. DOSE RATE data is also displayed
g) STOP – to stop any function – press ENTER until you see STOP on the display. Then ENTER again
to go back to the Main Menu
h) IDENTIFY - Selecting IDENTIFY from the Main Menu begins a spectral reading for a pre-set
duration. At the end of the sample period, a menu permits viewing the spectrum, peak analysis,
Nuclide Identification, storing the spectrum for later analysis or output of the spectrum to a PC.
i) For a detailed explanation of these functions and other system functions - see the following Sections
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