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CHEM2000 Sampling Components
ISS-2 Integrated Sampling System
The CHEM2000 comes with a light source/sample holder combination called the ISS-2 Integrated Sampling
System. It is a fully integrated tungsten halogen light source and 1-cm square cuvette holder that couples to
the PC2000 with optical fiber to create a small-footprint system from ~350 to 900 nm. The ISS-2 has a 900-
hour bulb with a color temperature of 3100 Kelvin and has a 5-mm diameter f/2 collimating lens. In the ISS-
2, the fan is not enclosed in the base; it is exposed and should be handled with care.
Parts Included
•
ISS-2 light source and cuvette holder assembly
•
12VDC wall transformer for providing power
•
1-cm square, plastic cuvette for holding samples
•
Screwdriver for adjusting the fit of the cuvette
•
Allen wrench for adjusting the collimating lens
Caution!
"
The light source becomes
HOT
during operation. Handle with care.
"
DO NOT insert plastic or flammable materials in the filter slot. The materials could melt or ignite.
"
The unit could ignite flammable materials that come in contact with the metal housing.
"
There is an exposed fan on the bottom of the light source/sample holder. Handle with care.
Operation
Adjusting the Fit of the Cuvette for the ISS-2
The ISS-2 is designed to hold 1-cm square cuvettes. When properly adjusted, the cuvette should fit snugly
into the holder.
1.
Locate the two ball plunger screws.
2.
Use the screwdriver to loosen the two ball plunger screws until the ball end of each screw is just
visible in the holder.
3.
Insert your cuvette into the holder.
4.
Gently tighten the screws until the ball contacts the cuvette and starts to compress.
Do not
over-tighten.
Turning On the ISS-2
1.
Attach the 400-µm optical fiber that came with you CHEM2000 to the SMA connector on the front of
the sample holder and attach the other end of this fiber to the SMA connector on the PC2000 installed
in your computer.
2.
Plug the wall transformer into a standard 110 V outlet. Plug the 12 V output into the back of your ISS-2.
For users of European-version wall transformers, plug the transformer into a standard 220 V outlet.
3.
Find the on/off switch on the back of the ISS-2. Turn the lamp on.
4.
Allow ~30 minutes to stabilize before using.
