User Manual

52
NOTE:
Some numerical values have fixed permissible limits. For example, Menu 3.1.2., L.F. CUT OFF
only allows values in the range 0 to 10%. If, for example, the operator tries to enter a value of
15%, the converter responds as follows :
5.6 Setting the current output (Fct. 1.3. and 3.3)
The current output can be programmed to the following measurement values :
– Mass Flow
– Density
– Temperature
– Volume Flow Rate
– Flow Direction
For the current output of the MFC 085, five ranges are available :
0 to 20 mA
4 to 20 mA
0 to 20 mA warning state: 22 mA
4 to 20 mA warning state: 2 mA
4 to 20 mA warning state; 3.5 mA
All output ranges will over range to 20.5 mA. The 4 - 20 mA ranges will under range to 3.8 mA.
All functions except flow direction have a minimum and a maximum value. When the current
output is set to one of these quantities, then the output range (4 to 20 or 0 to 20 mA) will
correspond to the appropriate minimum and maximum (see figure on next page).
For example, to use the current output for density with the following parameters :
MIN DENSITY = 0.5g/cm
3
MAX DENSITY = 2.0g/cm
3
RANGE 4 to 20 mA
Density Current
0.5 g/cm
3
4 mA (minimum)
1.0 g/cm
3
10 mA
2.0 g/cm
3
20 mA (maximum)
Key Display
line 1 line 2
15.0 PERCENT
↵ 10.0 MAX.VALUE
Press ↵ again to correct the number:
↵ (0)10.0 PERCENT
Re-edit the number or press ↵ again to
accept this value.