Special Mounting Conditions - Endress+Hauser Levelflex FMP51 Operating Instructions Manual

Levelflex FMP51, FMP52, FMP54 HART
Endress+Hauser
6.1.7

Special mounting conditions

Bypasses and stilling wells
In bypass and stilling well applications it is recommended to use a centering disks or
stars.
A B
 6 Dimensions: mm (in)
A Mounting in a stilling well
B Mounting in a bypass
C Center washer or centering star
1 Metallic center washer (316L) for level measurement
2 Fixing screw; torque: 25 Nm ± 5 Nm
3 Non-metallic centering star (PEEK, PFA) for interface measurement
4 Minimum distance between end of probe and lower edge of the bypass; see table below
Allocation of probe type and center washer or centering star to pipe diameter
Feature 610 - Accessory mounted
Application
Level measurement
Level or interface
measurement
1) Operation temperature: –60 to +250 °C (–76 to 482 °F)
2) Operation temperature: –200 to +250 °C (–328 to +482 °F)
Minimum distance between end of probe and lower edge of the bypass
Type of probe
Rope
Rod
Coax
øD
4
Option Type of probe
 d [mm (in)]
OA Rod probe 75 (2,95)
OB Rod probe 45 (1,77)
OC Rope probe 75 (2,95)
OD Rod probe 48...95 (1,89...3,74)
OE Rod probe 37 (1,46)
Minimum distance
10 mm (0.4 in)
10 mm (0.4 in)
10 mm (0.4 in)
C
1
2
3
2
Center washer
Centering star
Material  D [mm (in)]
316L DN80/3" to DN100/4"
316L DN50/2" to DN65/2½"
316L DN80/3" to DN100/4"
1)
PEEK ≥ 50 mm (2")
2)
PFA ≥ 40 mm (1.57")
Mounting
A0012615
Pipe
37