NIVELCO EchoTREK S-300, Руководство пользователя и программирования

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3. INSTALLATION
P
LACEMENT
Various considerations must be taken to find the ideal position for the EchoTREK level
transmitter.
The transmitter should not be installed in the center of the tank/silo when the tank roof is dome-
shaped or conical. The ideal position for the EchoTREK is on the r = (0.3 … 0.5) R (in the case
of a cylindrical tank). Avoid the transmitter's 5° conical beam angle intersecting the tank/silo
wall. In this case, the transmitter is mounted too close to the wall; therefore, it must be tilted
(See "Aiming").
To avoid overheating, the instrument must be protected against direct sunlight.
G
RAVITATIONAL FILLING
The device must be
mounted as far from the
filling stream as possible.
P
NEUMATIC FILLING
Select a location where the speed of the
in-flowing material is the lowest.
Ex-type units must not be installed in
the dust path of the pneumatic filling!
M
OUNTING
(
SEE ILLUSTRATION OF MOUNTING OPTIONS ON THE NEXT PAGE
)
The EchoTREK consists of a sensor attached to the aiming arm (a pipe with a ball joint housing incorporating a ball joint) 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). The Ball joint housing has a screw-hole
diameter of 125 mm (5
″ ) for fixing it. For easy installation, it is recommended to use NIVELCO's special flange with a split insertion, available with four sizes of
DN125/150/200/300 (to be ordered separately). Removing the split insert, the flange is must 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 × each) delivered with the split flange. The ball joint will be pressed to the housing by
a spring allowing adjustment/aiming. After completing the adjustment/aiming, the 4 × of M12 bolts have only to be tightened. The maximum torque for
tightening the bolts is 3.5 Nm.