FISCHER NC56, Operating Manual, Page: 15 / 24

FISCHER Mess- und Regeltechnik GmbH Technical data | 6
BA_EN_NC56 15/24
6 Technical data
6.1 General
General information
Type designation NC56
Measurement principle Continuous measurement of the capacity
change between two/three probe rods, de-
pending on the filling probe of a fluid.
Operating pressure Max. 10 bar
Number of electrodes 2 (3 for diesel)
Thread connection G 1¼’’ (for protective tubing version G2’’)
Protection class IP67 as per DIN EN 60529
Reference conditions (acc. to IEC 61298-1)
Temperature +15 to +25 °C
Relative humidity 45 … 75 %
Air pressure 86 to 106 kPa 860 to 1060 mbar
Installation position vertical
6.2 Input variables
Measuring range The measuring range lies between 400
mm and 2000 mm, depending on the
ordered probe length.
Other lengths available on request.
Input signal Probe rods covered: high capacity
Probe rods free: low capacity
6.3 Output variables
Current output Voltage output
Output signal 0 to 20 mA
4 to 20 mA 0 … 10 V
2 … 10 V
0 … 5V
1 … 5V
Load impedance (U
b
– 9V)/20 mA > 5 kΩ
6.4 Measuring accuracy
Measurement deviation < 1 % FS
Temperature coefficient of the zero-point < 0.5 % FS/10 K
Temperature coefficient of the measuring
range < 0.1 % FS/10 K
FS: Full Scale (measuring range)
6.5 Auxiliary energy
Current output Voltage output
Nominal voltage 24 V DC 24 V DC
Permitted op. voltage 9 to 32 V DC 12 to 32 V DC
Current draw (without signal) 30 mA 30 mA