Milltronics IQ Radar 160, Инструкция по эксплуатации, Страница: 27 / 81

PL-550 IQ Radar 160/160 Ex Page 27
Installation
Mounting: Still pipe or Side pipe
An alternate to the waveguide antenna, this option is also used for products
with an
ε
r
less than 3 or for extremely turbulent or vortex conditions. This
mounting arrangement can also be used to provide optimum signal conditions
on foaming materials.
Suitable pipe diameters are 2” (50 mm) to 10” (250 mm). A rod antenna or a
horn antenna may be used.
Note: The measurement range is reduced to 13 m (43’) for a 50 mm (2”)
still pipe or 14.5 m (47’) for a 80 mm (3”) still pipe.
Smoothness
One continuous length of metallic pipe is preferred (no joints). If joints are
required due to long length, then you must machine the joints to close
tolerances
±
0.25mm (
±
0.010”) and weld a connecting sleeve on the outside.
See P655 on page 58.
Ensure there is a vent at the upper end of the surge pipe to equalize pressure
and keep the liquid level in the pipe constant with level in the vessel.
vent hole
Suitable pipe diameters
are 2” (50mm) to 10”
(250mm).
You can use either a
Rod or Horn antenna.