30
Data Displays: Above the graph are three additi onal displays. The Left screen is the irradiance display, the
center screen is the percentage display and the right is the integrate display. These displays will change
values based on the features you select using the DC, SET 100%, and INT buttons.
If you need to do a software zero, cover the detector connected to the ILT1700 with the black cap and
press the Zero button
. The LED indicator will turn green until complete and the Zero Level
indicator should read
. Assure the meter was already zero-ed prior to using the program. Once
you have zero-ed, the program should show readings as displayed on the ILT1700 meter.
The data can be saved at any point in a tab -delimited file by pressing the Save button
.
Carefully read the pop up messages and follow the instructions. To stop
the program
without saving the data, press the Stop button. To measure in percentage, click the Set 100% button
to set the baseline 100% level. All future readings will be in percentage as a comparison to the
100% baseline reading. To measure accumulated dosage or total exposure, press the Integrate button
. The program will continue to integrate and show the total dosage in the integration window
until you press Save or Stop. To exit or stop the program, always use the Stop or Save buttons as they
assure that the COM port is properly closed. Try not to use the Abort Execution button
in the VI
toolbar.
E. TROUBLE SHOOTING
An
error message in “VISA Read in ILT1700.VI”will appear in case that a wrong COM Port
is
selected or if the VCP driver is not properly working. To exit the message, click Stop and select the
correct Com Port. Use Control Panel \System\Hardware\Device Manager\Ports in the Start Menu to locate
the proper COM port or to check the proper worki ng of the VCP driver.
F. HARDWARE FEATUR ES
USB 2.0
Windows 2000, XP and VISTA
Bits per second: 4800
Data bits: 8
Parity: none
Stop bits: 1
Flow control: none
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