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User Manual | Agrónic 2500
Parameters | Sensors
5.7.2 Analog sensors
An analog sensor acts by delivering current or a voltage
proportional to what it measures. Example: tempera-
ture, radiation, pressure, wind, humidity, etc.
ANALOG SENSOR PARAMETERS
1. Sensors
2. Formats
Sensors
ANALOG SENSOR PARAMETERS
Sensor: 01
Input No.: 00002
Format: 01 +000.0 °C
Tare: -000.2°C
Text: texttext
Sensor (00 ... 40): analog sensor number to configure.
Input No.: analog where the sensor is connected. See
section 6 ‘Input and output coding’. If the sensor is
connected to an AgroBee or AgroBee-L, the module
must be configured before the sensor.
Format (01 ... 31): format number used by the sensor).
The format is configured automatically in some
internal or AgroBee sensors.
Tare: value to be added or subtracted from the sensor
reading.
Text (0 ... 9 characters): identifying text of the sensor.
If the sensor is connected to an SDI12 unit or to an
AgroBee or AgroBee-L module, the module must be
configured before the sensor.
Formats
ANALOG SENSOR PARAMETERS
Format: 01
No. of integers: 3
No. of decimals: 1
Sign: yes
Units: °C
Calibration point 1:
real value: 00800 mV
Logical value: -100.0°C
Calibration point 2:
real value: 04000 mV
Logical value: +100.0°C
Calibration point 3:
real value: 00000 mV
...
The format indicates the sensor units and the relation-
ship between the voltage read by the input and the
sensor reading values.
Format (01 ... 31): format: number to configure.
No. of integers (1 ... 5): the number of integers on the
sensor reading.
No. of decimals (1 ... 4): the number of decimals on the
sensor reading.
Sign (Yes ... No):
• yes: the sensor reading may be negative.
• No: the sensor reading is always positive.
Units (0 ... 5 characters): descriptive text of the units.
Calibration points.
There are up to four calibration points, allowing
non-linear sensors to be configured. If they are not
used, they can be le at 0.
Actual value: reading the analog input in millivolt. If it
is by current, it must be converted taking into account
that there is a resistance of 200 ohms, 4 mA = 800 mV,
20 mA = 4000 mV.
Logical value: logical value that corresponds to the
previous real value. It goes in the previously defined
units and format.