Rockwell Automation 1734sc-IE4CH E+H Instruments via HART to PlantPAx User Manual - Manual (Page 111)

Rockwell Automation Publication PROCES-UM002A-EN-P - July 2014 111
Levelflex M Guided Radar Level Appendix F
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
Connect a Levelflex M Guided
Level-Radar Use a 2-wire connection to the HART input module.
1. Unscrew housing cover (2).
2. Remove any display (3), if fitted.
3. Remove cover plate from terminal compartment (4).
4. Pull out terminal module slightly using “pulling loop” (only 2-wire).
5. Insert cable (5) through gland (6). A standard installation cable is
sufficient if only the analog signal is used. Use a screened cable when
working with a superimposed communications signal (HART).
6. Only ground screening of the line (7) on sensor side.
7. Make connection (see pin assignment).
8. Re-insert terminal module.
9. Tighten cable gland (6). Max. torque 10...12Nm.
10. Tighten screws on cover plate (4).
Signal Details
Current Output 4...20mA with HART protocol
E N DR E S S + HA US E R
EN DR ES S+ HA US ER
3
2
7
8
Unplug display connector!
!