Models ER-420-AC, ER-420-DC & ER-420-LP
FILTER 67 This function is used to stabilize the analog output signal. The output value is updated every
0.1 sec. With the help of this digital filter a more stable but less precise reading can be obtained.
The filter principal is based on three input values: the filter level (01…99), the last analog output
value and the last average value. The higher the filter level, the longer the response time on a
value change will be.
Below, several filter levels with their response times are indicated:
RESPONSE TIME ON STEP CHANGE OF ANALOG VALUE. TIME IN SecS
FILTER VALUE 50% INFLUENCE 75% INFLUENCE 90% INFLUENCE 99% INFLUENCE
01 filter disabled filter disabled filter disabled filter disabled
02 0.1 sec 0.2 sec 0.4 sec 0.7 sec
03 0.2 sec 0.4 sec 0.6 sec 1.2 sec
05 0.4 sec 0.7 sec 1.1 sec 2.1 sec
10 0.7 sec 1.4 sec 2.2 sec 4.4 sec
20 1.4 sec 2.8 sec 4.5 sec 9.0 sec
30 2.1 sec 4 sec 7 sec 14 sec
50 3.5 sec 7 sec 11 sec 23 sec
75 5.2 sec 10 sec 17 sec 34 sec
99 6.9 sec 14 sec 23 sec 45 sec
Page 18 March 2013
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