Multi Channel

MCR-n - Multichannel Spectroradiometer

JETI MCR-n (download datasheet (170kB)) is a multichannel VIS spectroradiometer for the simultaneous measurement of up to 12 light sources. Depending on the application it can be equipped with full or reduced number of channels.
The instrument can be used with the supplied PC software or via serial interface commands. JETI MCR-n can handle up to three calibration data sets for different measuring heads.

Examples for Applications:
Quality control of LED equipped PCB's

Goniometric measurements

Burn-in tests of lamps

Advantages:
Simultaneously measurement for all channels

Continuous measurement mode

Measurement in time step intervals

Automatic determination of correct integration time

Control of the instrument also via interface commands

Additional input for hardware triggering of the instrument

USB and CAN interface (optional)

Data Export to Excel spread sheets

Export of calculated measuring values, e.g. chromaticity

Measuring values:
Luminance, Radiance

Illuminance, Irradiance

xy and u'v' coordinates

Dominate wavelength

Color purity

Correlated Color Temperature (under preparation)

Transmission

Specifications
Optical Parameters

Spectral range 380 nm .. 780 nm

Spectral resolution 9 nm (FWHM)

Digital spectral resolution 4 nm
Digital electronic resolution 14 bit A/D

Number of channels 12 (or less)
Accuracy (radiance) ± 10 %

Viewing angle (radiance) approx. 2°
Dispersive Diffraction grating

Light receiving element Photodiode array
Maximum measuring time 60 s

Measuring values Spectral radiance;
Integral luminance radiance;
Chromaticity coordinates x,y; u',v';
Correlated Color Temperature (under preparation);
Dominant wavelength, color purity
Transmission (with additional light source)
Measuring range and accuracy

Luminance 2 .. 7×10⁴ cd/m²
Reproducibility (radiance) ± 1 % (new measurement)
± 5 % (after new start)

Luminance accuracy ± 5 %
Luminance reproducibility ± 2 %

Chromaticity accuracy ± 0.002 x, y (@ 2856 K)
Color reproducibility ± 0.0005 x, y

CCT reproducibility ± 20 K (@ 2856 K)
Technical parameters

Operating conditions Temperature 10 .. 40 °C
Humidity < 85 % relative humidity at 35 °C
PC interfaces RS 232, 8N1, 115200 Bd or optional
USB1.1 and USB2.0 compatible up to 1 Mbyte/sec
CAN optional

Dimensions 300 mm x 250 mm x 90 mm
Weight approx. 1000 g

Power supply 230 VAC (115 VAC optional)/ 9 VDC (power supply included)
Accessories (included) PC software JETI MCR-n for Windows 2000/XP /NT
Operation manual

Measuring heads Application specific