CR210E

Perceptive color processing with Ethernet connectivity

The color sensor processes colors in a perceptual way

The CROMLAVIEW^® CR210E color sensor processes colors in a perceptual way (i.e. according to human perception) and assesses color distances with the precision of the human eye. For this purpose, a Lab color space is used in the color sensor, which has been equipped with a 4 Watt high power white light LED. Color distances are measured and assessed the same way humans would do. This sensor offers a maximum of flexibility, as it can be combined with a large number of optical fibers and focus optics by means of an optical fiber connection. On the other hand, multiple interfaces leave nothing to be desired. The color sensor, for example, can be connected with the computer via RS232 or USB interfaces. The freeware software CR-Tool, supplied with all CROMLAVIEW^® color sensors, facilitates the parameterization and the visualization of color values. Besides that, the color sensor can also be operated using the buttons. More standard interfaces are 12 push-pull switching lines (24 V/100 mA per line), which, when binary encoded, can output 4096 switching states. As all the other CROMLAVIEW^® color sensors, the CR210E is also equipped with the CROMLASTAB^® technology, which protects it from temperature and age drift and thus ensures secure and reliable operation in the whole life cycle. For easy connections via longer distances the CR210E has been equipped with an Ethernet interface.

Function

The functional principle of the CR210E is based on the three range procedure. The measuring light is assessed with the tristimulus value functions and assigned to the three wave length ranges red, green and blue. Through the assessment with these tristimulus value functions the sensor is able to perceive colors similar to the human eye.
The sensor contains an own white light source clocked with a frequency of up to 10 kHz. Sampling takes place in both, the light and the dark phase. Additive ambient light cannot change the difference between the light and dark phase, so that the sensor is independent from ambient light.

Features

Up to 100 colors can be stored
Quick response time from 50 µs
12 channels, with binary encoding 4096 output combinations
Long-term stability of color recognition without new teach-in by CROMLASTAB^®-technology
Finest color differences can be detected (ΔE < 1)
Standard interfaces: USB, RS232, 12 push-pull outputs (24V/100mA)
Field bus interface: Fast Ethernet
PC software CR-Tool for parameterization and visualization of color values

Technical data

Sensing channels	1 sensing channel 1 internal stabilization channel
Drift stabilization	CROMLASTAB^® can be switched off
Receiving detector	Three range photo diode
Sensitivity steps	8 (1x, 4x, 20x, 40x, 80x, 200x, 400x, 800x)
Receiving signal resolution	3 x 4096 steps
Object illumination	Power white light LED Adjustable (4096 steps) Can be switched off
Response time	≥ 50 µs
Interfaces	12 Switching outputs 2 Control inputs RS232 USB Fast Ethernet
Displays	22 LEDs for outputs and status
Buttons	3 Buttons for teach -in
Color resolution	ΔE_Lab < 1
On-/Off-Delay	0 ms ... 65535 ms
Color output channels	12 (up to 100 with binary encoding)
Protection standard	IP 54
Power supply	18 ... 28 VDC, max. 500 mA
Case temperature during operation	-10 °C ... 55 °C
Coupling in signal path	Via optical fiber
Case size	100 mm x 70 mm x 30 mm
Weight	285 g