SPECORD
®
Technical data of the spectrophotometers
Optical data of SPECORD
3
Technical data of the spectrophotometers
3.1
Optical data of SPECORD
Technical Data
SPECORD
®
200 / 205 /210
Principle
Double-beam spectrophotometer with two large-area
photodiodes
Optics
Monochromator with holographic concave grating
Light split into two beams by a beam-splitting plate
Wavelength range
190-1100nm
Photometric display range
-8A ... 8A
Photometric measuring range
-3A ... 3A
Wavelength accuracy
(with holmium oxide filter)*
≤
±
0.5nm
Wavelength reproducibility
(with holmium oxide filter)*
≤
±
0.05nm
Photometric accuracy VIS
at 546nm with Hellma F4
neutral-density filter
≤
±
0.005
Photometric accuracy UV
with potassium dichromate as per
Ph.Eur.
≤
±
0.01
Stray light at 200nm
(KCl Merck 1.08164.0001)
≤
0.5%T
Stray light at 220nm (NaI)
≤
0.05%T
Stray light at 240nm (NaI)
≤
0.05%
Stray light at 340nm (NaNO
2
)
≤
0.05%T
Baseline noise at 500nm
≤
0.00015 (RMS)
Long-term stability at 500nm
≤
±
0.001
Scanning speed
up to 6000nm/min
*
allowing for tolerances of used standard
SPECORD
®
200/205/210/250 User's Manual – Edition 04/2005
Page 9
Analytik Jena AG
