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USB-LS-450 LED Light Source Module
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The USB-LS-450 is an
integrated, multi-purpose LED light source module designed for use
with either a USB4000-FL Spectrometer
(or its predecessor, the USB2000-FL
Spectrometer), a small-footprint, plug-and-play spectrometer that plugs
into the USB port of any desktop or notebook PC. The USB-LS-450 is
available for only $635
and can be used for general fluorescence measurements or as part of a
Fiber Optic Oxygen Sensor system.
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Features
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Simplified LED-spectrometer interface
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LED connects to spectrometer, which
plugs directly into
Universal Serial Bus port of any desktop or notebook PC.
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Small footprint
-- LED-spectrometer combination is about the size of a deck-and-a-half
of playing cards.
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On-board memory for oxygen
measurements --
Fiber Optic Oxygen Sensor users can
conveniently store
calibration temperature calibration coefficients and oxygen
calibration coefficients.
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No external power
requirements -- Spectrometer and LED draw power from the
PC.
The USB-LS-450 module connects to the USB
Series spectrometers via a
connector on the front of the spectrometer. The spectrometer provides power to the
LED and also enables synchronization
functions and I2C communications.
In addition, the USB-LS-450 features a built-in,
24-bit analog-to-digital converter with an analog front end that is
configured for a 100 ohm platinum RTD (resistance temperature device).
This is particularly useful when configured as part of a Fiber Optic
Oxygen Sensor. In fact, the unit has on-board memory to store temperature
calibration coefficients and oxygen calibration coefficients.
The USB-LS-450 can provide 4-20 mA output via a daughter card, making it
especially useful for process applications.
User's Tip: The
USB-LS-450 board allows for software-controlled switching between pulsed
and CW operation of the LED.
USB-LS-450 Spectral Output
USB-LS-450 LED Specifications
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Criteria |
Specification |
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Power output: |
60 µW into a 600 µm
optical fiber |
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LED drive current: |
20 mA +/-150 mA |
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Maximum modulation frequency: |
1 kHz |
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0.5% stability time: |
less than 1 minute |
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Temperature-dependent drift: |
+0.1%/ºC |
Temperature Measurement Specifications
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Criteria |
Specification |
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Precision: |
better than 0.1 °C |
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Accuracy: |
better than 0.5 °C |
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Maximum data rate: |
15 samples/second |
Power Requirements
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Criteria |
Specification |
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Input voltage range: |
3.0-8.0 volts |
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Quiescent range: |
~20 mA |
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Current with light on: |
~20 mA |
Ordering Information
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Item |
Description |
Price |
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USB-LS-450 |
LED drive module for use with USB
Series Spectrometers |
$635 |
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USB-LS-450-TP |
Platinum RTD-type temperature probe
for USB-LS-450 |
$115 |
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USB-LS-450-4/20 |
4-20 mA output module for USB-LS-450 |
$230 |
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USB4000-FL |
Spectrometer
with a 360-1000 nm range; should be specified when used with USB-LS-450 and
Oxygen Sensors |
$2887 |
Sample Oxygen Sensor System Order with USB-LS-450 and
Accessories
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Item |
Comments |
Price |
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Spectrometer: |
USB4000-FL Spectrometer
(360-1000 nm) |
$2887 |
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USB-LS-450 Excitation Source: |
Blue LED drive module |
$635 |
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USB-LS-450-TP Temperature Probe: |
Platinum RTD-type temperature probe
(optional) |
$115 |
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USB-LS-450-4/20 mA output: |
4-20 mA output module for process
applications (optional) |
$230 |
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Probe: |
Select from 6 standard options
(contact an Applications Scientist
for
details) |
Depends on probe selected |
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Fiber: |
Bifurcated optical fiber (200 µm,
400 µm or 600 µm; selection depends on probe specified) |
$427 |
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21-02 Splice Bushing: |
To connect fiber to probe |
$14 |
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OOISensors Software: |
OOISensors 32-bit operating software |
$199 |
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©2007 Ocean Optics, Inc. All rights reserved.
Terms of
Use and Privacy Statement
+1
727.733.2447 • +1 Fax 727.733.3962 •
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Contact
an Ocean Optics Applications Scientist
Fiber Optic Oxygen Sensors
Sample Application
LS-450
and Additional LEDs
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