6
Installing the PC2000 and OOIChem Software
The
PC2000 PC P
LUG
-
IN
S
PECTROMETER
has our 2048-element linear CCD-array fiber optic
spectrometer mounted onto an ADC1000 A/D card. The
ADC1000 A/D C
ARD
is a high-speed ISA-bus
analog-to-digital converter card that connects our miniature fiber optic spectrometers to desktop PCs. The
ADC1000 is a 12-bit, 8-channel, single-ended A/D card. This sturdy spectrometer-A/D card combination
fits easily into an ISA-bus slot in the PC. The following directions apply to both CHEM2000 and
CHEM2000-UV-VIS users.
Each device in or connected to your computer is assigned specific settings; it’s similar to giving each
device its own name so that your computer will know what to call and how to recognize the device. In
order for your PC2000 to work as a device in your computer, it has to be assigned a Base Address setting
and an IRQ setting. The default settings for each are:
Base Address (I/O Range)
768 decimal (300 hexadecimal)
IRQ (Interrupt Request)
07
These default values are set on the A/D converter. There are dip switches on the A/D converter and their
positions determine the values. These default values are set in the operating software as well. Most of the
time, these default settings will work with your computer. However, if you have many devices installed in
your computer, you may have a conflict; other devices may be using these settings. If there is a conflict
with another device in your computer, you must change the positions of the switches on the A/D converter.
For the PC2000, there is only one bank of switches on the A/D converter: the Base Address may be
changed via the first 6 switches and the IRQ may be changed via the last 3 switches. To first check your
computer to see which settings are available, follow the instructions for the Windows system that you use.
Windows 95 and Windows 98 Users:
Find Available Base Address and IRQ Settings
1.
Go to
Start | Settings | Control Panel
and double-click on the
System
icon.
2.
Choose the
Device Manager
tab and double-click on “Computer” at the top of the list of devices in
your computer.
3.
Under
View Resources
, find available settings -- numbers unassigned to hardware. Note these
available settings for both the Interrupt request (IRQ) and the Input/output (Base Address). When you
first run OOIChem, you must enter these values in the “Configure Hardware” dialog box. (Remember
that Input/output settings are expressed in hexadecimal.)
