Eppendorf BioSpectrometer basic - Manual (Page 86)

Technical data
Eppendorf BioSpectrometer
® basic
English (EN)
86
11.4 Photometric properties
11.5 Further technical parameters
Measuring principle Single beam absorption spectrophotometer with reference beam
Light source Xenon flash lamp
Monochromator Holographic aberration-corrected concave grating
Beam receiver CMOS photodiode array
Wavelengths 200 nm to 830 nm
Wavelength selection Method-dependent, freely selectable
Spectral bandwidth ≤ 4 nm
Smallest step size 1 nm
Systematic wavelength error ±1 nm
Random wavelength error ≤ 0.5 nm
Photometric measuring range 0 A to 3.0 A at 260 nm
Reading accuracy ΔA = 0.001
Random photometric error ≤ 0.002 at A = 0
≤ 0.005 (0.5 %) at A = 1
Systematic photometric error ±1 % at A = 1
Stray light component < 0.05 %
Cuvette material For measurements in the UV:
Quartz glass or UV transparent plastic (Eppendorf UVette, 220
nm
to 1600 nm)
For measurements in the visible range:
Glass or plastic material
Cuvette shaft 12.5 mm × 12.5 mm, untempered
Overall cuvette height Min. 36 mm
Height of the light beam in the cuvette 8.5 mm
Key pad 22 foil keys
6 foil keys as softkeys
Result output Absorbance, concentration, scan (absorbance wavelength
spectrum)
Additional, method-dependent data (ratio, FOI, background
absorbances)
Display VGA TFT display 5.7”
Operator guidance language English, French, Spanish, Italian, German
Interfaces USB master: for USB stick and thermal printer DPU-S445
USB slave for connecting to a PC
Serial interface RS 232: for thermal printer DPU-414
Connected devices must meet the safety requirements specified in
IEC 60950-1.