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Product Name: CHEM4-VIS-NIR Spectrophotometer
Product Description
The CHEMUSB4-VIS-NIR packages a high-tech built-in light source, a USB4000 Spectrometer, a holder for 1-cm cuvettes, and high-speed electronics into a small-footprint system. The CHEMUSB4-VIS-NIR provides real-time, PC-based spectroscopy and captures full spectra from 370 to 985 nm in only 25 milliseconds.
The CHEMUSB4-VIS-NIR is available for $3149.
Features
Fully integrated, preconfigured system covers the 370 to 985 nm range at 1.0 nm (FWHM)
See changes as small as 0.1 Absorbance Units
Small-footprint system ideal for the laboratory and the classroom
Direct-attach deuterium tungsten/violet LED light source and sample holder
USB 2.0 interface for fast, hassle-free spectrometer-to-PC connection
Direct-attach Light Source
The CHEMUSB4-VIS-NIR uses the USB-ISS-VIS
combination sample holder (1-cm cuvette) and violet LED-boosted tungsten light
source for measuring relative absorbance. The light source boosts signal in the
blue and provides over 45,000 hours of use.
Programmable Microcontroller
The CHEMUSB4-VIS-NIR uses our USB4000
Spectrometer. The USB4000 features an onboard programmable microcontroller
that provides you with considerable flexibility in controlling the spectrometer
and accessories. Through a 22-pin connector, you can implement all operating
parameters in the software: control light sources, create processes, and
retrieve information on external objects. You have access to 8 user-programmable
digital Inputs/Outputs for interfacing to other equipment. (Contact
an Applications Scientist regarding what you'll need to program the GPIOs.)
Modular Design
Ocean Optics offers complete line of fiber
optic sampling accessories and teaching
tools to further enhance your CHEMUSB4-VIS-NIR system. Most accessories have
SMA 905 connectors for application flexibility; changing the sampling system is
as easy as unscrewing a connector and adding new components or accessories.
For even more flexibility, consider the CHEM4-VIS-FIBER.
An optical fiber based system, the CHEM4-UV-FIBER lets you quickly and easily
couple fiber optic accessories, such as reflection probes or transmission dip
probes, to the system's light source.
Plug-and-Play Operation
The CHEMUSB4-VIS-NIR interfaces to a PC, PLC or other embedded controllers via USB 2.0 or RS-232 serial port. When using the serial port, the system requires a single 5-volt power supply (not included). Data unique to each spectrometer is programmed into a memory chip on the USB4000; our spectrometer operating software reads these values for easy setup and hot swapping among PCs.
Serial port operation tips: When using the serial port, the USB4000 requires a single 5-volt power supply (not included). Also, SpectraSuite Spectroscopy Software does not support spectrometer operation via the serial port. However, using the included Serial Port Command Set, you can write your own software that makes serial port operation possible.
Convenient Calibration
To maintain the quality of your spectrometer's wavelength calibration, we
recommend our drift-free, calibration light sources. Click
here for details.
Specifications
|
Physical
|
| Spectrometer
dimensions: |
89.1 mm x 63.3
mm x 34.4 mm |
| Spectrometer
weight: |
190 grams |
| Light source
dimensions: |
40.7 mm x 88.8
mm x 34.1 mm |
| Light source
weight: |
130 g |
| Detector
Specifications |
|
Detector:
|
Toshiba TCD1304AP Linear CCD array
|
|
Pixels:
|
3648 pixels
|
|
Pixel size:
|
8 μm x 200 μm
|
|
Pixel well depth:
|
100,000 electrons
|
| Signal-to-noise
ratio: |
300:1 (at full
signal) |
| A/D resolution: |
16 bit |
| Corrected
linearity: |
>99.8% |
| Sensitivity: |
130
photons/count at 400 nm; 60 photons/count at 600 nm |
| Optical
Bench |
| Design: |
f/4,
Asymmetrical crossed Czerny-Turner |
| Focal length: |
42 mm input; 68
mm output |
| Entrance
aperture: |
25 µm wide slit |
| Grating: |
Grating #2 |
| OFLV filter: |
OFLV-350-1000 |
| Fiber optic
connector: |
SMA 905 to 0.22
numerical aperture single-strand optical fiber |
| Spectroscopic |
| Wavelength
range: |
370 to 985 nm
(The actual range typically exceeds what's listed here. The range listed
is where you will see changes as small as 0.01 absorbance units.) |
| Optical
resolution: |
1.0 nm FWHM |
| Signal-to-noise
ratio: |
300:1 (at full
signal) |
| A/D resolution: |
16 bit |
| Dark noise: |
50 RMS counts |
| Integration
time: |
3.8 ms to 10
seconds |
| Dynamic range: |
2 x 108
(system), 1300:1 for a single acquisition |
| Stray light: |
<0.05% at 600
nm; 0.10% at 435 nm |
| Light
Source/Sample Holder |
| Power
consumption: |
160 mA @ 5 VDC;
external power supply (included) |
| Pathlength: |
1 cm |
| Cuvette shape: |
Square |
| Light source: |
Tungsten halogen
and violet LED |
| Z dimension: |
15 mm |
| Bulb life
(hours): |
45,000 |
| Time to
stabilized output: |
~5 minutes |
| Electronics |
| Power
consumption: |
250 mA @ 5 VDC |
| Data transfer
speed: |
Full scans to
memory every 5 ms with USB 2.0 port, 18 ms with USB 1.1 port |
| Inputs/Outputs: |
Yes, 8 onboard
digital user-programmable GPIOs |
| Analog channels: |
No |
| Auto nulling: |
Yes |
| Breakout box
compatible: |
Yes,
HR4-BREAKOUT |
| Trigger modes: |
4 modes |
| Strobe
functions: |
Yes |
| Connector: |
22-pin connector |
| Computer |
| Operating
systems: |
Windows
98/Me/2000/XP, Mac OS X and Linux with USB port; Any 32-bit Windows OS
with serial port |
| Computer
interfaces: |
USB 2.0 @ 480
Mbps (USB1.1 compatible); RS-232 (2-wire) @ 115.2 K baud |
| Peripheral
interfaces: |
SPI (3-wire);
I2C inter-integrated circuit |
| Pricing |
| Retail: |
$3149 |
Company Details
Ocean Optics is a leading supplier of solutions for optical sensing – fundamental methods of measuring and interpreting the interaction of light with matter. We enable diverse applications in medical and biological research, environmental... more
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