Baumer DAB10, Руководство по эксплуатации, Страница: 29 / 56

Baumer Functions | 7
V3 | DAB10, DST53, DST76 Operating Manual 29
7.3.1.1 Parameterizable sensor characteristics
In general, you can parameterize the following properties for the sensor at the amplifier elec-
tronics:
n
Unit of the process value ( Process Value Unit )
n
Nominal measurement range of the process value ( Nominal Process Value )
n
Nominal key value of the sensor in mV/V ( Nominal Sensitivity )
n
Input signal in mV/V at which a process value of 0 should be presented ( Offset )
Example: Conversion of the input signal into the process value
The sensor is parameterized with the following sensor characteristics:
n
Process Value Unit =
N
n
Nominal Process Value =
1000 N
n
Nominal Sensitivity =
1 mV/V
n
Offset =
0.2 mV/V
This means that the process value is converted based on the following diagram:
mV/V
2.0 -2 -1.6 -1.2 -0.8 -0.4 0.4 0.8 1.2 1.6
N
1000
800
600
400
200
200
400
-1000
-600
-800
Nominal Sensitivity
Offset
Ill. 4: Converting the input signal into the process value
NOTICE
Limited evaluable measurement range
The evaluable measurement range is limited to double the set parameter Nominal Process
Value (in positive and negative signal direction). Example:
Nominal Process Value : 1000 N
Input signal range: -0.8 ...1.2 mV/V (nominal)
Evaluable measuring range: ±(2 × 1000 N) = ±2000 N
This corresponds to: 0.2 ± (2 × 1 mV/V) = -1.8 ...2.2 mV/V
Therefore: Process values smaller than -2000 N or larger than +2000 N are not displayed (see
Diagnosis | Device Status ).