Endress+Hauser Levelflex M FMP45 Operating Instructions Manual page 15

Levelflex M FMP45 4 to 20 mA HART
"
!
Endress+Hauser
3.4.4 Mounting rope probes in a partially full silo
It is not always possible to empty a silo which is already in operation. Mounting in a partially filled
silo is possible if the following conditions are met:
• Mount when the silo is as empty as if possible. A minimum of 2/3 of the silo must be empty.
After mounting, map must be made should the installation conditions require it.
Caution!
If there is a risk of electrostatic discharge from the product, the housing must be earthed before the
probe is lowered into the silo.
Screw down
• If appropriate, screw the Levelflex into the
threaded flange.
• Turn with the hexagonal nut only:
torque 10 to 20 Nm
• For flange mounting: if a seal is used, be sure
to use unpainted metal bolts to ensure good
electrical contact between probe flange and
process flange.
• When installing in metal silos, take care to
ensure good metallic contact between the
process connection and silo.
Insert probe
• Uncoil rope and lower it slowly and carefully
into the silo.
• Avoid tangles.
• Avoid any backlash, since this might damage
the silo fittings.
• If possible, make a visual check to see that the
rope has not tangled or is lying such that it can
knot when the level falls. This is
particularly important if a flange was not used.
Re-insert the probe if necessary.
• Screw the flange to the counterflange on the
nozzle.
Note!
Before full accuracy is obtained the probe rope must hang fully extended.
3.4.5 Mounting the probe rod
See KA00228F/00/B8.
Installation
Screw in Levelflex
housing allignable
Tighten with the
hexagonal nut only
L00-FMP4xxxx-17-00-00-en-058
Uncoil rope and lower
probe slowly and
carefully into the silo.
Avoid tangles or knots.
L00-FMP4xxxx-17-00-00-en-059
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