Technical Data; Measurement Characteristics - wtw photoLab 7100 VIS Operating Manual

®
photoLab 7100 VIS
Measuring principle
Light source
Monochromator
Photometric mea-
surement
ba77095e03 10/2017
7

Technical data

7.1

Measurement characteristics

Spectrophotometer with reference beam technology
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 330 nm ... 1100 nm
Tungsten halogen lamp
approx. 1000 h
Grating monochromator with step motor
320 - 1100 nm
approx. 800 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 ... 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
41