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Giving Shape to Ideas

Specifications

CAS 140D High-end Array Spectrometer

Stray light corrected array spectrometer suitable as a reference instrument in laboratories and for production

Specifications

Principal Specifications of the CAS 140D

Model

UV/VIS

UV/VIS/NIR

VIS

VIS/NIR

Spectral range

200 - 830 nm

220 – 1020 /

300 – 1100 nm

360 – 830 nm

380 – 1040 nm

Detector

Back-thinned CCD

Number of pixels

1024 x 128

Spectral resolution1)

3.0 nm

3.7 nm

2.2 nm

3.0 nm

Data point interval

0.65 nm

0.8 nm

0.5 nm

0.65 nm

Wavelength accuracy

± 0.2 nm

Integration time

4 ms – 65  s

Shortest duration SOT to EOT2)

6 ms

Sensor dynamic range3)

37,000:1

Linearity

± 0.5 %

Cooling

-10 °C

Stray light

Broadband for illuminant A4)

5·10-4

For LED5)

1·10-4

With laser5)

5·10-5

Sensitivity

Irradiance6)
[W/m2 nm]

1·10-8 – 100

6·10-9 – 60

7·10-9 – 70

6·10-9 – 60

Spectrophotometry

Baseline noise7)

± 0.4 %

Transmission  measuring accuracy8)

± 0.5 % T

Baseline drift9)

0.15 %/h

Spectrograph

Focal length, grating

Approx. 120 mm f/3.5 / plane ruled grating

Slit

50 µm, 100 µm or 250 µm

Filter wheel / Shutter

Max. 7 slots for density filters OD 0.5 to OD 4; UV/VIS and UV/VIS/NIR with UV density filters; position monitoring with encoder

Electrical data

AD converter

24 bit resolution, Chip 16 bit

PC interface

USB 2.0, PCIe, Ethernet

Triggering

1 TTL input with ascending slope; 2 software-controlled TTL outputs; 1 TTL output with flash pulse

Other

Dimensions (H, W, D)

144 x 341 x 359 mm³

Power supply

Wide-range input 100 – 240 VAC 50/60  Hz

Power consumption

Max. 70 VA

Ambient temperature

15 – 35 °C; relative humidity 0 – 70 % max., non-condensing

Weight

Approx. 9 kg

Valid standards

In conformity with EN 60721-4-7 Class 7M2, EN 60721-4-7 Class 2M2, EN 61326:2004-05 and EN  61010-2002-08

Measure-ment uncertainty 10)

Lumi-nance / radiance

Lum. intensity/ flux

Irradiance / illumi-nance

Color coordinates (x,y) 11)

Dominant wave-length

Instrument precision

± 0.1 %

0.0001

0.02 nm

Accuracy

± 3 %

± 4 %

± 3.5 %

0.0015

0.5 nm

 

1) Applies to a 100 µm slit.

2) With USB interface.

3) For a single acquisition with 4 ms integration time.

4) Measured with edge filter OG455 at 400 nm, relative to peak intensity of unweighted spectral data.

5) Measured 150 nm to left of the peak wavelength, relative to peak intensity of unweighted spectral data.

6) Measured with optical probe EOP-120 and OFG-414 fiber bundle at 600 nm and signal/noise ratio of 10:1, without averaging.

7) With shortest integration time, without averaging and with 50 % modulation. This value improves with appropriate averaging (e.g. 9x averaging results in a 3x reduction of noise).

8) Applies to optimum spectral range; with 10 % transmission and immediately after recording an averaged baseline.

9) Typical value. Applies with LS100-130 light source after 2 hour warm-up.

10) Minimum achievable, extended relative measuring uncertainty applied to a twofold standard deviation. Only applies to the measuring and ambient conditions used for calibration (e.g. without density filter, optimum spectral range, sufficient signal level, etc.).

11) For white LEDs.