Seli STS-15, Manual

Page: 49 / 68

Table of contents
Parameter Designation Value range Description
turbidity.
AO min Minimum output
limit
(Analog Output min
4mA)
0,0 … 100,0
(for unit %)
Sets the turbidity value
for minimum output.
AO max Maximum output
limit
(Analog Output max
20mA)
0,0 … 100,0
(for unit %)
Sets the turbidity value
for maximum output.
Damping Damping 0 … 100 Applies damping to the
turbidity measuring
value by returning a
moving average over
the set number of
measuring values.
DO On Switch-on point
(Digital Output on) 0.0 … 100.0
(for unit %)
Sets the switch-on
point.
DO off
Switch-off point
(Digital Output off) 0.0 … 100.0
(for unit %)
Sets the switch-off
point.
DO funct Switching function
Digital Output typ
NO , NC NO = Normally open
contact
NC = Normally closed
contact
DO Delay Switching delay
Digital Output delay
0 … 200 s Delays the switching
point by up to 200
seconds
Language
Language settings Deutsch, English,
Français, Nederlands
Sets the display
language.
5.2 Calibrating the sensor for the medium
(reset to zero)
To detect recurrent product conditions, the sensor can be
adjusted to these product conditions..
Select the parameter "Offset ON". Immerse the sensor tip in the
reference liquid and, once the reading has stabilized, select the
"SET" menu function at the "OffsetVal" parameter to set the
offset. This sets the measured value to 0.
Alternatively, you can apply a 24 V DC switching signal to the
adjustment input. In order to activate the offset and to set the
value of the reference liquid as "zero value" at the same time, the
adjustment input must be supplied with a voltage of 24 V DC for a
short time (approx. 5 sec.).