OCB100-KIT Optek, OCB100-KIT Datasheet - Page 17

• Manufacturer Part Number: OCB100-KIT
• Description: Optical Sensor Development Tools Sensor Design Kit Trans, Reflec, Fluid
• Manufacturer: Optek

Specifications of OCB100-KIT

• Description/function: Design Kit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

to calibrate. We could have suggested the 10K load resistor to begin
with, but this exercise can show the importance of matching the
phototransistor load resistance to data sheet specifications of the par-
ticular sensor being interfaced to the OCB100CZ.
in combination with the OCB100CZ would be where a semi-opaque
or semi-transmissive material needs to be sensed. Since the material
does not block all of the light, the sensor might see through the mate-
rial and not be able to detect its presence. The OCB100CZ solves this
problem by calibrating the sensor output at a level slightly higher than
the detection trip point. If the material to sense is 50% transmissive
or less, it will be sensed.
transmissive materials needs to be detected, such as in a label
printer where a sensor is required to see through the liner of a roll of
labels, but detect the label. A sample label / liner is included in this
OCB100-KIT. Try the following experiment:
the load resistor at approximately 10K ohms. Place the gap between
the two labels in the center of the optical path. Calibrate the sensor.
Now move the labels back and forth in the gap to see that the green
LED lights when the labels are present, but does not light when the
label is present. Remove the label / liner from the gap completely.
The blue light of the OCB100CZ should now be lit.
to a higher load resistor value in those cases. Place the shorting bar
between pins 2 & 3 and try calibrating again. In this case the OP-
B885CZ only needs to reach an Ic
An example of an application where the OPB885Z could be used
Another example would be when the difference in two semi-
Insure that the shorting bar is placed between pins 2 & 3 to set
OPTEK gives you the tools to help you take your ideas to market.
(ON)
value of 2.5V / 10K = 0.25mA
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