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10.6.2
Universal inputs of base unit and optional boards
Configuration point Selection/
Description
Operating mode
Signal type
Base unit universal input: IN 6
Optional board universal inputs: IN 11/12
Open: Device Menu > Configuration > Analog Inputs >
Universal Input 1 to 3 > Configuration
setting option
up to 15 text characters
linear scaling,
temp. measurement,
pH-value measurement,
conductivity measure-
ment,
free chlorine
pH/T-compensated
IN 6/11/12:
0 to 20 mA
4 to 20 mA
20 to 0 mA
20 to 4 mA
only IN 11/12:
0 to 10 V
10 to 0 V
Pt100
Pt1000
400 Ω
4000 Ω
Resistance potentiome-
ter
10 Configuration
Explanation
Designation for the input
Type of measuring
linear scaling: Standard signals (for
IN 11/12 and resistance transmitter
measurement characteristic line or customer-
specific linearization
For standard signals the scale start point, scale
end point and unit must be specified.
Temp. measurement: Measurement made with
a
resistance thermometer
The type of sensor is selected in the "Signal type"
configuration item. The unit for the temperature is
specified in the "Basic Settings" menu.
⇨
Chapter 10.3 "Basic settings", page 10
pH value, conductivity, and free chlorine: The
values measured by the individual analysis sen-
sors are received in the form of a standard signal.
Outside factors affecting the individual analysis
process variables are compensated. It is thus
necessary to make appropriate compensation
settings in the configuration of the universal in-
put.
Type of sensor connected
Correct scale settings are required for the stan-
dard signals.
⇨
"Scale start/end" in this table.
Appropriate linearizations are available for
Pt100, Pt1000 and resistance transmitters
For 400 Ω and 4000 Ω, a customer-specific lin-
earization must be configured.
⇨
"Customer-specific linearization" in this table
a
) with linear
a
.
17
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