Endress+Hauser Levelflex M FMP40, Operating Instructions Manual

Page: 20 / 92

Installation Levelflex M FMP40 with HART/4...20 mA
20 Hauser
3.6 Installation instructions
3.6.1 Mounting kit
In addition to the tool needed for flange mounting, you will require the following tool:
• For mounting adapters: 60 mm open-end spanner for 1½", 50 mm open-end spanner for ¾".
• A 4 mm Allen key for turning the housing.
3.6.2 Shortening probes
Rod probes
It is necessary to shorten a rod probe if the distance to the tank floor or outlet cone is less than
50 mm. The rods of a rod probe are shortened by sawing or separating at the bottom end.
Coax probes
It is necessary to shorten a coax probe if the distance to the tank floor or outlet cone is less than
10 mm.
Coax probes can be shortened a maximum of 80 mm from the end. They have centering units inside
which fix the rod centrally in the pipe. The centerings are held on the rod by flanges. Shortening is
possible up to approx. 10 mm below the centering.
3.6.3 Installation
Type of probe installation
• Probes are mounted to the process connection with threaded connections or flanges and are
usually also secured with these.
Standard installation
Using a coax probe offers great advantages when the viscosity of the product is
≤
500 cSt and it is
certain that the product does not cause buildup:
• Internals in the tank and nozzle dimensions do not have any impact on the measurement.
• Higher lateral load-bearing capacity than rod probes.
• In the event of high viscosity levels, a rod probe for pipe diameters > 40 mm is recommended.
Measurement in corrosive liquids
To measure in corrosive liquids, use Levelflex M FMP41C.
Screw down
• Screw the Levelflex into the sleeve or secure
at the counterflange.
• When using an aramid fibre seal and a process
pressure of 40 bar:
– G1 1/2" : 140 Nm
– G3/4" : 25 Nm
• Maximum permissible torque:
– G1 1/2" : 450 Nm
– G3/4" : 45 Nm
L00-FMP4xxxx-17-00-00-en-057
Screw in Levelflex
housing allignable
T
ighten with the
hexagonal nut onl y