20
3-1
Passing Speed:
f1
Application example
Measures the time taken by an object
to travel the distance between A and B.
Basic Operation
Displays the speed of an object passing between A and B. The speed is obtained
by multiplying the reciprocal of T by 60. T (time) is the time interval between INA
turning ON and INB turning ON. If the distance between the INA sensor and INB
sensor is 1 m, the displayed value is m/min. If the distance is other than 1 m, or if
another unit of measurement is required, input an appropriate prescale value.
Obtain display value D as follows:
D (m/min) = 1/T x 60 x
a
T: Time interval between INA turning ON and INB turning ON (sec)
a
: Prescale value
Hold Measured Value
When the HOLD input turns ON while the K3NP is measuring, the measuring
operation is canceled and the K3NP holds the last measured value (displayed
value). While the HOLD input is ON, the K3NP holds comparative output and
BCD output. Measurement will not begin while the K3NP is in HOLD status. This
is illustrated in the following diagram.
When the comparative output terminals of the output board and the HOLD
input terminals are connected, the value measured immediately after the oc-
currence of an error can be obtained.
Display
Value previously
measured
T
R
: Recovery time
FUNCTION
Passing Speed:
f1
Section 3-1
Summary of Contents for K3NP
Page 1: ...K3NP Period Meter Operation Manual Produced January 1998...
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