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Reflective Sensor Heads: FUN M ode Functions
3-5-9
Intensity Mode
The Intensity Mode can be selected either when using distance values for
display and output values or when using the received intensity (light level).
When the Intensity Mode is entered, the following are changed: Threshold
values (HIGH and LOW), hysteresis (hysteresis width), self-trigger level,
monitor focus function values, and the data for the received amount.
Note: Set the gain switch to
3-5-10 Differentiation Function
The differentiation function is used to convert variations in measured val-
ues into output values. Use it for measurements that monitor changes in
measured values, such as counting the number of sheets.
When the Differentiation Mode is enabled, the number of cycles (measure-
ment periods) to be compared can be set. (1 cycle: 150 μs )
Measured value
Example:
Number of samples
to average = 1
For 10 cycles
(Note: Default
setting =
5,000 cycles)
Differentiation value
Differentiation value changes
because of the difference
in the measured values.
Example: Measured Values and Differentiation Values
The variation in the measured values indicates the difference
between the previous and current measured values. This value will
decrease when the number of samples to average is increased.
POINT
68
Only the measured values for " " are compared.
10 cycles
Differentiation value is zero
because there is no difference
in the measured values.
when using Intensity Mode.
Differentiation value changes
because of the difference
in the measured values.
Section 3-5
Time
Time
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