Rockwell Automation 1734sc-IE4CH E+H Instruments via HART to PlantPAx User Manual - Manual (Page 116)

116 Rockwell Automation Publication PROCES-UM002A-EN-P - July 2014
Appendix G Micropilot M Radar Level
• Rod antenna with inactive length:
Reliable measurement in narrow nozzles, with condensation and build-up
in the nozzle.
Measured Variables
The measured variable is the distance between a reference point and a reflective
surface (i.e. medium surface). The level is calculated based on the tank height
entered. The level can be converted into other units (volume, mass) by means of a
linearization (32 points).
Signals from Instrument to Control System
Item Description
E Empty distance
F Span (full distance)
D Distance from sensor membrane - product surface
L Level
20 mA
100%
4 mA
0%
D
L
F
E
flange:
reference point of
measurement
flange:
reference point of
measurement
inactive
length
max.level
threaded
connection
1 ½”
(R 1
:
reference point of
measurement
BSPT ½”)
or 1½ NPT
Signal Details
Current Output 4...20mA with HART protocol