BUCHI NIRFlex N-500 - Manual (Page 15)

3 Technical data
15 NIRFlex N-500 Operation Manual, Version F
Technical data NIRFlex Solids Transmittance (cont.)
Photometric linearity
The “addition of filter technique” has been used.
A 2% transmission filter and a wavelength standard
(Rare Earth Oxide mixture) were used for the addition.
Both filters were measured individually and together in
series. The addition of the individual measurements has
been compared with the measurement of both filters ihn
series. The difference had been < 2 x 10
-7 T
at 7’876 cm -1
Typical signal-to-noise ratio
open beam
5 mm white standard
rms for spectral segments of 300 cm -1 in the range of
11’000 - 6’500 cm -1
mean 2 x 10 -5 AU (16 scans; Blackman apodization)
mean 10 x 10 -5 AU (64 scans; Blackman apodization)
3 .3 .3 NIRFlex Liquids
Technical data NIRFlex Liquids
Detector
extended range InGaAs (temperature controlled)
Electric power supply provided from NIRFlex N-500 100−230 VAC ± 10 %, 50/60 Hz, 250 W
Ambient conditions < 80 % relative humidity for T < 31 °C, linear
decreasing to 67 % at 35 °C, max. 2500 m, for indoor
use only
Ambient temperature 5−35 °C ( 25 ± 5 °C recommended)
Pollution degree 2
Installation category II
Sample temperature range Ambient temperature plus 10 °C up to 65 °C
Reproducibility of set sample temperature ± 0.5 °C
Temperature overshoot < 5 °C
Overheating protection, automatic switch-off T > 90 °C
Diameter of measurement spot 2 mm
Type of cuvettes to be used Standard cuvettes 12.5 x 12.5 x 45 mm with path-
length of 2 mm, when spacers are used, 1, 5, 10 mm
cuvettes can be inserted as well
Time needed to reach a stable control of the set temperature Ambient temperature to 65 °C: 15 min