KROHNE OPTIFLEX 1300C EN - Manual (Page 88)

6
OPERATION
88
OPTIFLEX 1300 C
www.krohne.com 03/2014 - 4000172306 - HB OPTIFLEX 1300 R07 en
You can change the reference point from which distance is measured. Use the menu item
"Reference Offset" (C.1.10). If you move the reference point above the flange, add this value
when give a distance for the 4 and 20 mA current output settings. If you move the reference point
below the flange, subtract this value when you give a distance for the 4 and 20 mA current output
settings.
For more data about the menu items, refer to Function description on page 73 (table C. Advanced
setup).
6.4.5 Level measurement
The device displays level measurements when an output function is set to "Level".
Menu items related to level measurement are:
• Output Function (C.3.1 or C.4.1)
• Tank Height (C.1.2)
• Blocking Distance (C.1.9)
Use the tank bottom as the reference point for the 4 and 20 mA current output settings. The 4
and 20 mA current output settings are the minimum and maximum points of the measurement
scale.
Figure 6-4: Distance measurement
1 Tank Height (C.1.2)
2 Reference Offset (C.1.10)
3 Blocking Distance (C.1.9)
4 4 mA Setting (C.3.2 or C.4.2)
5 20 mA Setting (C.3.3 or C.4.3)
6 Maximum effective measuring range
7 Non-measurement zone
CAUTION!
If the level for 20 mA is set in the blocking distance, the device will not be able to use the full
current output range.