1/4 Meter Monochromator
• Connects to any computer via RS232 or IEEE-488 • Motorized slits • Triple-grating turret allows high efficiency scanning across a broad spectral range • May be factory configured as a monochromator or spectrograph • Scans in both directions and with Constant Spectral Resolution (CSR) • Integrates with SP filter wheel for automatic filter switching • Suitable for fluorescence and absorption studies, detector characterization, thin film measurements. etc
FEATURE | VALUE |
---|---|
Focal Length | 240 mm |
f/# | 3.9 |
Wavelength Precision and reproducibility |
0.007 nm(with 1200g/mm grating) |
Wavelength Accuracy | ± 0.3nm standard(with 1200 g/mm grating) |
Scan Speed | 1 to 1200 nm/min(with 1200 g/mm grating) |
Stray Light | < 0.01% at 220 nm(Nal) |
Slits | Unilateral, computer controlled, straight entrance and straight exit standard. Width - 10 to 3000 μm Height - 2 to 20 mm |
Reciprocal Dispersion | 3.2 nm/mm(with 1200 g/mm grating) |
Grating | One to Three Gratings(68 X 68 mm standard, 68 X 84 mm optional) must be purchased. See appendix A for options |
Power | 100-240 V, 50/60 Hz, 60 W |
Computer Interface | RS232 |
Options | DKBS - Bi-lateral slits DKGPIB - IEEE-488 communication interface (internal) DK2401 - Hand-held controllers for local control IR240 - Gold optics DKPURGE - Purge port |
The Workhorse: Direct Digital Drive/Constant Spectral Resolution
The Digikrom DK240 is a complete computer integrated solution. Easy to use commands control the triple grating turret, motorized slits, and optional motorized filter wheel for quick and easy sorting. Instrument mode can be set for constant spectral resolution (CSR), where the slit width is automatically modified to compensate in the change in dispersion with wavelength to maintain constant spectral bandpass.
Rugged cast construction, A-Thermal design, and SP direct grating drive make this unit the most repeatable and reliable in its class. Each instrument is calibrated and certified prior to delivery.
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Series Options and Accessories
DKBS
Bi-lateral slit option for DK240/480
BOth sides fo slits are automatically controlled for maintaining image centering when wider slits are necesary(tolerance ±10㎛)
DKGPIB
Internal IEEE-488/GPIB communication interface option for DK240/480
Seperate output connector from Monochromator
IR240
For use with DK240
Infrared(gold) coatings on optics for DK240
Enhances transmission by up to 40% between 600-1100nm
Not suitable for work below 600nm
IR240SP
Same as above, for use with DKSP240
IR480
For use with DK480
Infrared(gold) coatings on optics for DK480
Enhances transmission by up to 40% between 600-1100nm
IR480SP
Same as above, for use with DKSP480
DK2401
Hand-held monochromator controller for DK240/480
Allows local control of monochromator when computer is not available or in series with a computer
DK24PS
RS232 Cable assembly for PS/2 style computer
DK24MA
RS232 Cable assembly for MAC style computer
DK24IC
IEEE-488/GPIB universa cable assembly
AB300
Six position, 1" diameter automatic filter wheel assembly that bolts directly to DK entrance
Recieves power and commnad directly through DK unit
DKSP-TO-DK
Attachment to allow DKSP Spectrograph to operate as a monochrometor
It includes CM standard 6-fixed slit set
AB200
Single filter carrier that mounts directly between DK unit and accessories
DK Standard Ruled Gratings Size = 68 X 68 mm
SP Part # | Ruling (g/mm) |
Peak(nm) | Range(nm) @>30%T |
Peak %T |
---|---|---|---|---|
AG2400-00240-686 | 2400 | 240 | 180-680 | 70 |
AG1200-00200-686 | 1200 | 200 | 180-450 | 65 |
AG1200-00250-686 | 1200 | 250 | 180-460 | 70 |
AG1200-00300-686 | 1200 | 300 | 200-750 | 72 |
AG1200-00500-686 | 1200 | 500 | 330-1000 | 83 |
AG1200-00600-686 | 1200 | 600 | 400-1500 | 80 |
AG1200-00750-686 | 1200 | 750 | 480-1500 | 85 |
AG1200-01000-686 | 1200 | 1000 | 550-1500 | 75 |
AG0600-00500-686 | 600 | 500 | 350-1300 | 80 |
AG0600-01200-686 | 600 | 1200 | 800-3000 | 85 |
AG0600-01600-686 | 600 | 1600 | 950-3000 | 93 |
AG0300-00500-686 | 300 | 500 | 310-1100 | 80 |
AG0300-02000-686 | 300 | 2000 | 1200-4000 | 88 |
AG0300-02500-686 | 300 | 2500 | 1500-6000 | 88 |
AG0300-03000-686 | 300 | 3000 | 1800-6000 | 80 |
AG0150-00500-686 | 150 | 500 | 320-980 | 72 |
AG0150-04000-686 | 150 | 4000 | 2500-9000 | 93 |
AG0075-08000-686 | 75 | 8000 | 5000-15000 | 82 |
AG0050-00600-686 | 50 | 600 | 400-1200 | 78 |
AG0050-12000-686 | 50 | 12000 | 7500-20000 | 82 |