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Installation
Note the maximum lateral load of the probe rod when using it for minimum
detection.
Start-up without calibration is possible if the requirements for installation are
met as shown in Fig. 7b). The material of the silo wall is not important.
Examples for Mounting
Correct Installation
a) The probe tip points slightly downwards so that material can slide off
more easily;
with short threaded socket (half socket length = 25 mm);
with minimum distance of 200 mm to the next Nivocompact FTC 731;
with minimum distance > 500 mm to a Nivocompact FTC 831.
b) Threaded socket + silo wall + material build-up is a maximum 50 mm
thick so that no calibration is required before start-up.
c) Minimum detection in the outlet cone is only possible with easy gliding,
free-flowing bulk materials.
d) Probe end too near a wall (under the 120 mm distance)
e) Threaded socket too long with material build-up on the silo wall. *
f) In area where material is deposited in silo. *
g) Poor gliding characteristics of material causes material bridges. *
* In these cases it would be better to use a Nivocompact FTC 831 with
rope probe, installed from above.
Incorrect Installation
Resistance to Load
Start-Up without Calibration
Fig. 7
Noting the information given for installation
will prevent errors occurring.
Correct Installation
Incorrect Installation
9
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