ISS-2
Integrated Sampling System
Installation and Operation Instructions
Description
The ISS-2 Integrated Sampling System is a fully integrated 1-cm cuvette holder and tungsten halogen
light source. The ISS-2 couples to Ocean Optics spectrometers via an optical fiber to create a smallfootprint system for VIS-NIR (approximately 360 to 1100 nm) measurements.
The ISS-2 light source features a 900-hour bulb. Additionally, the fan in the ISS-2 is exposed (not
enclosed in the base) and requires particular care when handling.
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ISS-2 Installation and Operation Instructions
Parts Included
The ISS-2 Integrated Sampling System ships with the following components:
ISS-2 cuvette holder and light source assembly
12 VDC power supply
1-cm square plastic cuvette
Screwdriver (for adjusting cuvette fit)
Allen wrench (for adjusting collimating lens on light source)
WARNING
The Light Source in the ISS-2 gets extremely hot during operation. After use, allow
sufficient time for the lamp to cool before handling the ISS-2.
Installing the Sampling System
Assembling the ISS-2
Ocean Optics packages the cuvette holder and the ISS-2 light source as separate components that you
must manually connect.
To assemble the ISS-2, screw the cuvette holder onto the SMA-905 connector of the ISS-2 light
source until snug.
Attaching Fibers to the ISS-2
► Procedure
Follow the steps below to attach fibers to the ISS-2:
1. Connect an SMA 905-terminated optical fiber to the collimating lens of the ISS-2’s cuvette
holder.
2. Connect the other end of the fiber (the read fiber) to the SMA 905 connector of the
spectrometer.
Adjusting the Fit of the Cuvette
The ISS-UV-VIS is designed to hold 1-cm square cuvettes. When properly adjusted, the cuvette
should fit snugly into the holder.
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ISS-2 Installation and Operation Instructions
► Procedure
To adjust the fit of the cuvette,
1. Locate the two ball plunger screws.
2. Use the supplied screwdriver to loosen the two ball plunger screws until the end of each screw
is visible in the holder.
3. Insert a cuvette into the cuvette holder.
4. Tighten the ball plunger screws until the cuvette is stationary in the cuvette holder. Do not
over-tighten.
5. Remove the cuvette from the cuvette holder.
Installing Filters
► Procedure
Follow the steps below to install filters in the ISS-2:
1. Loosen the filter clamping screw with an Allen wrench.
2. Insert the filter into the filter slot of the ISS-2. The filter slot accommodates filters up to 6 mm
thick.
3. Gently tighten the filter clamping screw with the Allen wrench to secure the filter in place.
Turning On the Lamp
► Procedure
Follow the steps below to turn on the lamp in the ISS-2:
1. Plug the transformer end of the power cable into a 110 V electrical outlet.
2. Plug the 12V barrel connector on the power cable into the power port on the back of the ISS-2.
3. Screw a fiber into the SMA 905 connector of the ISS-2.
4. Switch the On/Off switch on the rear of the ISS-2 to the On position.
Replacing the Bulb in the ISS-2
► Procedure
Follow the steps below to replace the bulb in the lamp of the ISS-2:
1. Order a replacement bulb (item code LS-1-B) from Ocean Optics.
2. Switch the On/Off switch on the rear of the ISS-2 to the Off position and allow the lamp
sufficient time to cool.
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ISS-2 Installation and Operation Instructions
3. Remove the four screws that secure the fan to the base of the ISS-2. Take particular care to
save the washers for each screw (typically two per screw), as you will need to replace them
when replacing the screws.
Note
Two of the four screws also hold the front two legs of the ISS-2 in place.
4. Pull the fan gently (along with the legs) away from the lamp to remove the fan.
5. Loosen the setscrew underneath the fan with the included Allen wrench. This setscrew holds
the bulb in place.
Note
You do not need to remove the setscrew – loosening it is sufficient.
6. Remove the setscrews above each of the back legs of the ISS-2 using an Allen wrench (not
included). These screws keep the two halves of the lamp together.
Specifications
Path length: 1 cm
Collimating lens: BK 7 glass (~360 nm – 2 µm*), 5 mm diameter, f/2
Collimating lens termination: SMA 905
Filter slot: Accepts filters up to ¼” (6 mm) thick
Base material: Aluminum
Spectral range: 360 nm – 2 µm*
Dimensions (LxWxH): 8.9 cm (3.5”) x 5.1 cm (2”) x 3.2 cm (1.25”)
Power input: 12 VDC/800 mA – 2.1 mm center positive
Power output: 6.5 watts
Bulb life: 900 hours
Bulb color temperature: 3100K
Output to bulb: 5 volts/1.3 amps
Output regulation: 0.2% voltage
Time to stabilized output: ~ 30 minutes
Bulb output: 7400 foot-candles (7.4 MSCP)
* Though the product can be used to 2 µm, you can configure it to only “see” to 1100 nm with the
spectrometer.
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