NIVELCO EasyTREK SCD-300 Series, Инструкция по установке и программированию

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3. INSTALLATION
P
OSITIONING
Selecting optimal location for the transmitter various considerations should be made.
If the measured material is granule (material size > 5 mm) and the tank roof is dome shaped or conical, do not
install the transmitter in the centre of the tank/silo. In general the transmitter can be installed on the radius
r= (0,3 … 0,5) R.
Avoid that the 5° conical beam angle of the transmitter contact the tank/silo wall. In case the transmitter is
mounted close to the wall, it should be tilted (See section “Aiming”). Protect the transmitter electronics from
overheating due to direct sunshine. The same way no disturbing objects such as ladder, grid, thermometer, etc
should intrude into the beam cone. Heavy air movement can make measurement more difficult or even unable.
Device should be protected against direct sunshine no to let its temperature increase into excessive range.
r
R
G
RAVITY
F
ILLING
Select a location that is as
far away from the filling
point(s) as possible.
P
NEUMATIC
F
ILLING
Select a location where the speed of the in-flowing
material is the smallest.
Suggested location (view from above)
40 m 3,8 m
50 m 4,7 m
M
OUNTING
(see illustration of mounting options on the next page)
The EasyTREK consists of a sensor that is attached to the aiming arm (a pipe with a ball-joint housing incorporating a ball joint) that is attached to the housing of the
electronics. It is recommended to mount the transmitter on the roof of the tank/silo using a flange (see drawing above). The Ball-joint housing has a screw-hole
diameter of 125 mm for fixing it. For easy installation we recommend using our special flange with a split insertion, available in four sizes of DN125/150/200/300 (to be
ordered separately). Removing the split insertion, the flange is to be put around the aiming arm and the ball-joint housing is to be fixed to the split flange. It is essential
to use the washers and the bolts (4 pcs each) delivered with the split flange. The ball-joint will be pressed to the housing by a spring allowing adjustment/aiming.
The 4 pcs of M12 bolts have to be tightened only after completing the adjustments/aiming.