Omron ZW Series User Manual page 95

■ Setting the differ filter
Use the differentiation function to detect only sudden changes in the measured values
that occur during very short periods of time.
The differentiation function detects changes between the present value and the
measured value that is in effect just before the comparing pitch. The coefficient of this
comparing pitch is defined as the differentiation cycle.
Example: Differentiation cycle = 10 ms
Present value
Sampling
Measuring cycle
Display value
(differentiation result)
As an example, here is an explanation of the procedure for selecting the "10 ms"
differentiation filter cycle setting.
Operating procedure
Steps Key operation
1 - 4 For moving to FILTER, see steps 1 to 4 in p.3-15
5
ZERORST/ ESC ZERORST/
ZERO/ SET ZERO/
6
ZERORST/ ESC ZERORST/
ZERO/ SET ZERO/
7
ZERORST/ ESC ZERORST/
ZERO/ SET ZERO/
Display
ESC
SET
ESC
SET
ESC
SET
Setting the Output Conditions
Comparison interval: 10 ms
Description
Select "Differ filter" as the filter type.
Press or keys to select either of "DIFFER"
and press key.
ZERO/ ZERO/ SET SET
Enable the differential filter.
The current setting value is displayed on the sub-
display.
Press / keys to enter the editing mode, and the
sub-display blinks.
Select "ON" and press
ZERO/ SET ZERO/ SET
Set "10" as the differential cycle.
"CYCLE" is displayed on the main display and the
current setting value is displayed on the sub-display.
Press key to enter the editing mode, and the
ZERO/ SET ZERO/ SET
sub-display blinks.
To edit numerical values use
Enter "10" and press
ZERO/ SET ZERO/ SET
Chapter 3
key.
/ / / keys.
key.
ZW
User's Manual
3-17