Endress+Hauser Fieldbus Levelflex M FMP45 Operating Instructions Manual page 94

Technical data
94
Installation
This version of Levelflex M generates a reference reflection in the distance Lref from the flange (see
→ ä 8 "Ordering structure" option U: 300 mm/11"; option V: 550 mm/21"). The reference
reflection must be at least 150 mm above the highest level. By means of the shift of the reference
reflection the actual propagation speed is measured and the level value will be automatically
corrected.
Limitations for coax probes
Maximum probe length LN
Minimum probe length LN
Reference distance Lref
Maximum level relative to sealing
surface of flange:
Minimum DC-value of medium:
Levelflex M FMP45 with FOUNDATION Fieldbus
LN ≤ 4000 mm
LN > Lref + 200 mm
300 mm / 550 mm
Lref + 150 mm
D > 7
K
max
min
L00-FMP4xxxx-15-00-00-xx-003
Endress + Hauser