Delta CS24D User Manual download pdf (Page 16)

5.4 General Teach Information

Once an output is taught, the mean and SD for the Sort Output are immediately stored in the color

sensor (overwriting any previous data) and the individual data from the eight readings is deleted.

When the sensor is in Teach mode, the outputs are held OFF (No Match condition when in Run mode).

In Teach mode, the Output LEDs show the output being taught, not the actual output state. The output

LEDs use binary coding to indicate which channel is active:

Output

LED 0

LED 1

LED 2

LED 3

0 (No Match)

OFF

If four or less Sort output (colors) are needed, Teaching outputs 1, 2, 4, and 8 will result in a single

LED and discrete output dedicated to each Sort output.

Output

LED 0

LED 1

LED 2

LED 3

0 (No Match)

OFF

For best results, Teach the CS24D at normal operating temperature and in a normal mounting position,

etc. Let it warm up for at least 15 minutes.

The LEDs have a typical operating life of 50,000 hours or about 5 years of continuous operation. The

intensity of LEDs varies with temperature and aging due to the properties of the semiconductor

materials used. The CS24D sensors have automatic compensation that greatly reduces the effect of

these variations.

Dust, dirt and scratches on the viewing window are another source of variation over time. This type of

error affects Intensity (amplitude) more than Colors (ratios). Also, the colors themselves may vary

from batch to batch.

Since the CS24D’s automatic compensation will not eliminate 100% of the variations, it may be

necessary to re-Teach periodically. The re-Teach period depends on the application. In many cases,

every three to six months or more may suffice, while in very critical applications, it may be necessary to

re-Teach every week or every shift.

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Delta CS24D User Manual Page 16