KROHNE ALTOSONIC III EN - Manual (Page 7)

Installation and operating instructions
7 ALTOSONIC III
During the mechanical installation of the ALTOSONIC III and the flow
conditioner it is absolutely required that both parts are aligned with high
accuracy.
“Bush Guides” are permanently welded in one of the top bolt holes of the
inlet flange of the ALTOSONIC III and the outlet flange of the flow
conditioner. The position of these “Bush Guides” is marked on the flange
with “BG”. This provision is integrated to assure the position and to align the
ALTOSONIC III in combination with the flow conditioner as accurate as
possible. If the ALTOSONIC III is used bi-directionally the outlet flange is
provided with a ”Bush Guide” as well.
Seen upstream, only the right top hole is fitted with a bush guide. When the
flowmeter is bidirectional, both flanges of the flowmeter are fitted with a bush
guide, which are placed collinear.
Mark the location of the bush guide in both flanges
Flow direction
Please note to the forward direction of the flow sensor indicated by the
direction arrow on the body. If the flow has this direction the output indication
will be positive.
Bolts and nuts
Use the specified bolts and nuts and gaskets, according to the ordered
flange type and pressure rating and mount according the general or local
requirement.
Vibration
Do not expose the sensor unit to intensive vibrations. Support of the flow
sensor is only allowed at the in- and outlet sections near the flowmeter.