Spectrum Techniques STU ST365 Manual de usuario
User Manual
February 4, 2022
IMPORTANT NOTE
The ST365 Webpage Control application is included as a part of
each Spectrum Techniques ST365 hardware device. In order
to access this application it is necessary that the ST365 device
be LAN-connected to your network. With the device powered
on you may use a computer, smart phone, or tablet that is
connected to the same network to open a Chrome browser
window. From within this browser window you navigate to the
URL for the given ST365 device. Click the menu item labeled
“ST365 Webpage” to launch the control application.
Spectrum Techniques, LLC
106 Union Valley Road
Oak Ridge, TN 37830
Phone
(865)482-9937
Fax
(865)483-0473
E-mail
support@spectrumtechniques.com
Web Site
spectrumtechniques.com
2 Spectrum Techniques ST365 Webpage Rev. 1
Contents
Introduction ................................................................................................................................................. 3
System Setup ............................................................................................................................................... 3
Accessing the ST365 Webpage ................................................................................................................... 3
ST365 Home Page ........................................................................................................................................ 5
USING YOUR ST365 DEVICE ........................................................................................................................6
Assigning Parameter Values................................................................................................................... 11
Counts Command................................................................................................................................ 11
Plateau Experiment Command ..........................................................................................................13
Plateau Experiment Setup..................................................................................................................13
Plateau Experiment ............................................................................................................................15
Half-Life Experiment Command........................................................................................................ 18
Half-Life Experiment Setup ............................................................................................................... 18
Half-Life Experiment .......................................................................................................................... 19
Data Table....................................................................................................................................................21
Data Graph ................................................................................................................................................. 22
SYSTEM OPERATION ................................................................................................................................. 23
Basic GM Tube Setup and Operation.................................................................................................... 23
GM Tubes............................................................................................................................................ 24
GM Tube Plateau................................................................................................................................ 24
Creating a Plateau Chart.................................................................................................................... 24
Running the unit as a stand-alone unit ......................................................................................... 24
Using the ST365 application software.............................................................................................. 24
Resolving Time................................................................................................................................... 25
The Wipe Test System ...........................................................................................................................26
The Wipe Test.....................................................................................................................................26
Checking the System Calibration ...................................................................................................... 27
Taking a Background Reading........................................................................................................... 27
Measuring Wipes ............................................................................................................................... 27
System Re-calibration ........................................................................................................................ 27
Warranty and Repair Information..................................................................................................... 28
3Spectrum Techniques ST365 Webpage Rev. 1
Introduction
The purpose of this guide is to help you learn to use the ST365 Webpage application with your
Spectrum Techniques hardware device. The ST365 webpage allows the user to copy data to
your device’s clipboard and to use features described in the Using Your ST365 Device section
found later in this document. The webpage is located on a web server that resides within your
ST365 device.
System Setup
Connect a detector probe to your ST365 device. Note that each ST365 device has connector
jacks on the back of the box for connecting to Geiger-Mueller and Scintillator detectors.
Connect the detector you have available to the appropriate jack on your device. You should
follow the procedure outlined in the ST365 Spectrum Techniques setup manual when doing this.
Accessing the ST365 Webpage
The following discussion assumes that your ST365 device is already LAN-connected to your
network and the device is powered on. Further, this discussion assumes that you already know
the IP address of your ST365 device on your network. If you do not already know your ST365
device’s IP address, then you can use the Texas Instruments software utility called Finder.exe
to find it. This utility will help you find the IP address your ST365 device and all other ST365
device’s on your LAN.
Using a computer, smart phone, or tablet that is connected to the same network as your ST365
device open a Chrome browser window. From within the browser address bar enter the IP
address of your ST365 device. Doing this causes the browser window to display the following
page.
4Spectrum Techniques ST365 Webpage Rev. 1
Figure 1
The webpage you see is hosted by a web server located inside your ST365 device. The menu
buttons displayed in green are used to access various features of the device.
Click the menu button labeled ST365 Webpage. After a moment a new browser window
appears that looks like this:
5Spectrum Techniques ST365 Webpage Rev. 1
Figure 2
ST365 Home Page
Figure 2 shows the ST365 home page. This is your starting point for controlling your ST365
device through the web server. This is how the page initially looks each time you access the
device. Note that the page is oriented vertically. This is so as to accommodate how users
normally hold a smart phone when using their phone.
Note in Figure 2 that there is a red button labeled Click to Control ST365. This document refers
to this as the control button. This button is always visible regardless of what operation you
perform within the webpage. As long as the control button contains the label Click to Control
ST365 you do not have control of the ST365 device. The device will ignore any commands you
attempt to send to it. Occasionally, you might find that the device quits responding to your
commands. This could happen because someone else has acquired control of the device while
you were still using it. When this happens the next command button you click will cause this
message to appear:
Figure 3
This message tells you that someone has used another browser window to take control of the
same ST365 device that you have been using and that you no longer have control of the device.
The only option you have at this point is to click the Continue button. Doing this takes you back
to the webpage shown in Figure 2 above. Notice that the control button now says Click to
Control ST365.
This method of acquire-and-release exists in your ST365 LAN-connected device because of the
possibility that another user might go to its internal webpage and attempt to control the device at
the same time you are using it. To prevent two users from having control of the same device at
6Spectrum Techniques ST365 Webpage Rev. 1
the same time the web server uses a lockout mechanism that assures that only one user may
control a given ST365 device at a time.
To take control of the ST365 device click the control button. Assuming the device is not already
in use the control button will turn green and its label will update to say Click to Release ST365.
In the case where someone else is currently controlling the device the control button will instead
turn yellow and its label will update to say Locked by another user. Continue? If you click the
control button again the web server will disconnect the other user and give you control of the
ST365 device. The control button within your browser window turns green and its label updates
to say Click to Release ST365. As a courtesy to others you should take control of an ST365
device only after you have assured that the device is not in use by someone else. There is no
technical way to prevent a user from taking control of an already-in-use ST365 device.
When you first gain control of the ST365 device the home page updates to look like this:
Figure 4
When you are finished controlling the ST365 device you should click the control button again.
Doing this notifies the web server that the device has been released from use and is now
available for the next user to acquire control of the device and to begin using it. The control
button updates to say Click to Control ST365. This indicates that the ST365 device is ready for
someone else to take control of it and to begin using it.
USING YOUR ST365 DEVICE
The ST365 home page is comprised of five pushbuttons and two dropdown menus. The control
button is used to acquire and release control of the ST365 device. The function of this button
was described previously in this manual in the section entitled ST365 Home Page. The
following discussion assumes that the user has used the control button to acquire control of
their ST365 device and that the web server is now displaying its home page.
7Spectrum Techniques ST365 Webpage Rev. 1
Along the top row of the webpage is a button that says OFF. This is the high voltage button and
is used to toggle the high voltage on and off. Click this button once to turn the ST365 device
voltage on. The button now says ON. Click it once again to turn the ST365 device voltage off.
Notice that when the high voltage is off the button says OFF and is colored red. When the high
voltage is on the button says ON and is colored green. There is a physical button labeled HV
ON/OFF located on the ST365 device. See Figure 5 for location of HV ON/OFF button circled
in red.
Figure 5
The LED on this button will light up in green when the user toggles the high voltage button on
within the webpage. The LED on this button will go dark when the user toggles the high voltage
button off within the webpage.
Immediately below the control button is a Display dropdown menu. See Figure 6.
Figure 6
This menu allows the user to select from one of seven display options for the device. These
options are:
Counts
Counts per Second
Counts per Minute
8 Spectrum Techniques ST365 Webpage Rev. 1
Elapsed Time
High Voltage
Probe Type GM Tube
Probe Type Scintillator
Select any one of these seven display options to cause the information displayed in the Display
window to change. Initially, the text shown at the top of this window says Counts. However, the
user may change this to say Counts / Second, Counts / Minute, Elapsed Time, or High Voltage.
The number shown immediately below this text is the value of the selected display option.
Initially, the text shown at the bottom of this window says Probe Type:. However, the user may
change this to say Probe Type: GM Tube or Probe Type: Scintillator. Setting the probe type in
this manner instructs the ST365 device to use the corresponding jack on the back of the device
when acquiring count data from an attached probe.
Immediately below the Display dropdown menu is the Mode dropdown menu. See Figure 7.
Figure 7
This menu allows the user to select from one of nine mode options for the device. These
options are:
Home
Plateau Experiment
Half-Life Experiment
Set Preset Time
Set Preset Runs
Set Pause Time
Set High Voltage
9Spectrum Techniques ST365 Webpage Rev. 1
Data Table
Data Graph
Select any one of these nine mode options to initiate a mode change for your ST365 device.
Approximately midway down the webpage is a horizontal blue bar that extends the entire width
of the webpage. This is the Display window for the page. See Figure 8 for the location of the
Display window outlined in red.
Figure 8
Immediately below the Display window is a row of three pushbuttons. See Figure 9.
10 Spectrum Techniques ST365 Webpage Rev. 1
Figure 9
These are the Start Counts button, the Stop Counts button, and the Clear Counts button. The
Start Counts button is shown in Figure 10.
Figure 10
Click the Start Counts button to instruct the ST365 device to begin counting.
The Stop Counts button is shown in Figure 11.
Figure 11
Click the Stop button to instruct the ST365 device to stop counting.
The Clear Counts button is shown in Figure 12.
Figure 12
Click the Clear Counts button to reset the counts and the elapsed time to zero (0) as shown in
the Display and Elapsed Time windows.
Immediately below this row is a 3 x 2 grid of blue boxes. See Figure 13.
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