Endress+Hauser Levelflex FMP56 Operating Instructions Manual page 22

Installation
22
Sealing
The thread and the type of seal comply with DIN3852 Part 2, screwed plug, form A.
The following types of sealing ring can be used:
• For thread G¾": according to DIN7603 with dimensions 27 mm × 32 mm
• For thread G1½": according to DIN 7603 with dimensions 48 mm × 55 mm
Use a sealing ring according to this standard in form A, C or D and of a material that offers
appropriate resistance for the application.
Nozzle installation
ø 150 (6)
£
H Length of the centering rod or the rigid part of the rope probe
FMP56
Rope, ⌀ 4 mm (0.16 in)
Length H 120 mm (4.7 in)
FMP57
Rope, ⌀ 4 mm (0.16 in)
Length H 94 mm (3.7 in)
Rope, ⌀ 6 mm (0.24 in)
Length H 135 mm (5.3 in)
• Permissible nozzle diameter: ≤ 150 mm (6 in)
For larger diameters, the near-range measuring capability may be reduced.
For large nozzles, see the section "Mounting in nozzles ≥DN300"
• Permissible nozzle height: ≤ 150 mm (6 in)
For larger heights, the near-range measuring capability may be reduced.
Larger nozzle heights are possible in special cases (on request), see section "Rod
extension/centering device HMP40 for FMP57".
• The end of the nozzle should be flush with the tank ceiling in order to avoid ringing
effects.
In thermally insulated vessels, the nozzle should also be insulated in order to prevent
condensate formation.
Levelflex FMP56, FMP57 HART
Endress+Hauser
A0015122