Ocean Optics DT-1000 User manual

DT-1000 Deuterium Tungsten Halogen Light Source
The DT-1000 DEUTERIUM TUNGSTEN HALOGEN LIGHT SOURCE combines the continuous spectrum of a
deuterium UV light source and a tungsten-halogen VIS/Shortwave NIR light source in a single optical path. The
combined light source produces a powerful, stable output from ~200-1100 nm. It also has a highly stabilized
microprocessor-based power supply designed for optimum stability.
Parts Included
!DT-1000 Deuterium Tungsten Halogen Light Source
!Safety eyewear for protection against dangerous ultraviolet radiation
!Power cord for connecting DT-1000 to outlet
!Allen wrench for adjusting the focus of the collimating lens
Caution!
The beam emerging from the DT-1000 produces visible light and/or invisible ultraviolet radiation. Direct
contact with the beam could cause serious eye injury.
Safety eyewear must be worn at all times while operating the DT-1000. Do not remove any safety
device installed.
Dangerous voltages present.
""Only qualified service personnel should service the DT-1000.
""This instrument should not be used for any clinical or diagnostic purposes.
""Handle with care. Dropping the instrument may cause permanent damage.
""For optimum performance below 250 nm, use a solarization-resistant fiber with this lamp.
Operation
Allow several minutes for the lamp to warm up and for the power to stabilize, regardless of the bulb being used.
Best results are obtained after 30 minutes. The spectral output as delivered by an optical fiber will decrease
significantly at wavelengths lower than 250 nm due to attenuation in the lamp envelope, the decrease in detector
efficiency in the spectrometer, and attenuation by the fiber.
1. Put on safety eyewear.
2. Lift the black protective shutter covering the fiber optic port. Install an optical fiber. (For best results, use
our solarization-resistant fibers.)
3. Plug the power cord into the rear of the DT-1000. Plug the other end into a 110 VAC outlet.
4. To turn on the power for the DT-1000, flip the power switch at the rear of the unit, just above where the
power cord connects to the DT-1000. When the power is on, the green Power On light located at the bottom
right of the front panel will light. At this time, the user can now power up the deuterium or tungsten-halogen
source or both. (See the following Operating the Deuterium Source and Operating the Tungsten-
Halogen Source sections for more information.)
5. To turn off the DT-1000, both deuterium and tungsten-halogen sources must be turned off first. Only then
can the user flip the power switch at the rear of the unit to the off position. The green Power On light will
turn off.
6. Lift up the black protective shutter and disconnect your optical fiber from the SMA connector.
Operating Instructions: DT-1000
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Operating the Deuterium Source
1. To power the deuterium lamp, push in the UV Start button located on the front panel. This white button turns
on the deuterium lamp. Pushing in the UV Start button initiates the start-up sequence for the lamp. First, the
heater in the deuterium lamp ionizes the available deuterium. At this point, the yellow Heater On light on the
front panel will light. After ~30 seconds, the red UV On light located at the top of the front panel will light.
(The Heater On light will turn off at the same time.)
2. To turn off the deuterium lamp, press the white UV Off button located on the front panel. The red UV On light
should go out.
Operating the Tungsten-Halogen Source
1. To power the tungsten-halogen lamp, push in the white button Visible On. The red Vis. On light will come on.
2. To turn off the tungsten-halogen lamp, press the white Visible On button located on the front panel. The red
Vis. On light will go out.
Bulb Replacement
Replacing the Deuterium Bulb
1. Order a deuterium replacement bulb, item DT-1000-BD, from Ocean Optics.
2. Make sure the DT-1000 is turned off, the power cord is disconnected, and the source has cooled.
3. Use a Phillips-head screwdriver to remove all 12 screws from the side panels of the DT-1000 casing. Do not
remove any screws from the front, back, or bottom panels. Remove the cover.
4. Locate the deuterium bulb. It is located at the front of the housing, mounted on a black platform. Three wires
lead from the bottom of the bulb to the green electronic board: one red wire and two black wires.
5. Use a Phillips-head screwdriver to loosen the screws securing these three wires to the green electronic board.
Once the screws are loose, gently remove the red wire and the two black wires. You do not need to completely
remove the screws to detach the wires. (Note that on the green electronic board, just to the right of each wire, is
a letter. To the right of the red wire is the letter “A”. To the right of one black wire is the letter “H” and to the
right of the second black wire is the letter “C”.)
6. Use a Phillips-head screwdriver to remove the two screws securing the bulb to the black platform.
7. Remove the old bulb unit.
8. Inspect the new bulb unit, but avoid touching the glass casing (or envelope) around the bulb, as the oils from
your skin will deteriorate the bulb. Inside the envelope is a triangle-shaped filament. The filament has a square
opening. The light passes through the square opening to the collimating lens. Take the new bulb, carefully
feeding the three wires through the hole in the black platform, and position it so that the square opening in the
filament faces the collimating lens.
9. Screw in the two screws that secure the bulb to the black platform.
10. Secure the three wires to the green electronic board. Attach the red wire to the top screw, labeled “A”. Attach
the black wires to the screws on the board labeled “H” and “C”. It does not matter which black wire is
attached to screw “H” or “C”.
11. Put the DT-1000 casing back on and secure it with the 12 screws.
Replacing the Tungsten-Halogen Bulb
1. Order a tungsten-halogen replacement bulb, item DT-1000-BT, from Ocean Optics.
2. Remove all 12 screws from the side panels of the DT-1000 casing using a Phillips-head screwdriver. Do not
remove any screws from the front, back, or bottom panels. Remove the cover.
3. Locate the tungsten-halogen bulb. It is inserted on the top of a cylindrical unit held by a set screw in a hole in
the black platform. The cylindrical unit is positioned behind the deuterium bulb. Two thin wires lead from the
bottom of the unit to a socket on the electronic board.
Operating Instructions: DT-1000
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4. Gently grip the top of the bulb and pull it away from the cylindrical unit. Discard the bulb.
5. Insert the new bulb into the top of the cylinder, being careful to position the bulb’s pins over the holes in the
top of the cylinder.
""The cylindrical unit is held in place with a small set screw. By loosening it, the user can slide the bulb unit up
and down, positioning it in front of the attenuator, a metal disc that attenuates the light before going through the
collimating lens. Another set screw holds the attenuator in place.
6. Put the DT-1000 casing back on and secure it with the 12 screws.
Specifications
Operating Instructions: DT-1000
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Spectral range: ~200-1100 nm
Time to stabilized output: ~30 minutes
Deuterium bulb lifetime: 1,000 hours
Tungsten-halogen bulb lifetime: 900 hours
Power consumption: 25-30 Watts
Stability: peak-to-peak = 0.05% (maximum)
drift of +/-0.5%/hour
Aperture: 0.5 mm (at lamp)
Connector: SMA 905
Lamp voltage: 85 volts DC (nominal)
Operating lamp current: 300 mA DC (+/- 1mA)
Inputs: trigger inputs for lamp (on/off)
Outputs: levels for lamp (on/off), filament (on/off)
Power requirements:
120 volts AC @ 0.50 A, 50-60 Hz
220 volts AC @ 0.25 A, 50-60 Hz
100 volts AC @ 0.60 A, 50-60 Hz
240 volts AC @ 0.20 A, 50-60 Hz