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7 Setup Program
7.4.3 Analog inputs
Probe type
Linearization
Start
End
Offset
Humidity
calculation
Dry temperature
64
Up to eight analog inputs are available.
Analog input 1 — 8
Selection/settings
No function
Resistance thermometer
Thermocouple
Voltage 0 — 1000mV
Voltage 0 — 10V
Current 0 — 20mA
Current 4 — 20mA
Linear
Pt100
Fe-Con J
NiCr-Ni K
Fe-Con L
Measuring range
-9999 to 0 to +9999 °C/°F
(depending on the sensor type
and linearization)
v Data Sheet 70.0101
-9999 to 0 to +9999 °C/°F
(depending on the sensor type
and linearization)
v Data sheet 70.0101
-9999 to 0.0 to +9999 °C/°F
Humidity calculation
ON
OFF
Analog input 1
k
/ bold = factory setting
Description
Defines the type of probe/sensor to be connected
to the individual analog input.
Defines the linearization function for the sensor.
The display depends on the type of sensor that has
been set.
For standard signals:
Defines the display value (measurement) for the
start of the input signal range.
The value defines the display value (measurement)
for the end of the input signal range.
The offset is used to correct the measurement
upwards or downwards by a fixed amount.
Examples:
Measured
Offset
value
294.7
+0.3
295.3
- 0.3
A
The controller uses the corrected value
(= displayed value) for its calculations.
This value is not the same as the value
at the point of measurement.
Incorrect use of this function may produce
impermissible values for the control variable.
The analog input 1 (or one of 3 — 8) is used to
acquire the dry temperature. Analog input 2 is used
to acquire the wet temperature. This two values are
used to calculate the psychrometric humidity.
Source for dry temperature
Displayed
value
295.0
295.0
IMAGO F3000 / 10.01
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