wtw photoLab 6600 UV-VIS Instrucciones De Operación página 87

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photoLab 6600 UV-VIS
Measuring principle
Light source
Monochromator
Photometric
measurement
ba75850e04 02/2011
7 Technical data
7.1 Measurement characteristics
Single-beam spectrophotometer
Lamp type
Average lifetime
Type
Wavelength range
Max. scan speed
Wavelengths calibration
Accuracy
Reproducibility
Resolution
Spectral band width
Light sensor
Measuring range
Linearity
Accuracy *
Reproducibility *
Resolution
Stray light
* in the range 200 nm ... 1000 nm
Xenon flashlamp
8
5 x 10 flashes, corresponding to at least
13000 h in permanent operation
Grating monochromator with step motor
190 - 1100 nm
approx. 3300 nm/min
Automatic
± 1 nm
± 0.5 nm
(checkable, e.g. with holmium oxide filter)
1 nm
4 nm
Photo diode
A = -3.300 to A = +3.300
< 1 % for A ≤ 2.000
in the range 340 to 900 nm
– 0.003 A for A < 0.600
– 0.5 % of the reading for 0.600 ≤A≤ 2.000
± 0.002 at A = 1.000
Δ
A = 0.001
< 0.1 % transmission at 340 and 408 nm
Technical data
85