MJK Automation Shuttle Ultrasonic Level Transmitter and Sensor - Manual (Page 7)

7 SW 838023 GB Shuttle Manual 100316
Mounting
Mounting
General
Shuttle
® measures the level by sending an
ultrasonic signal against the surface and
measuring the delay time of the received
echo.
Although Shuttle
® is equipped with a very
advanced system for eliminating measur-
ing errors, the ultrasonic sensor must - as
much as possible - be mounted so that the
ultrasonic signal is not disturbed by liquid
being pumped in or by mixers, ladders or
other installations in the tank.
The liquid surface should also be calm and
without waves and possibly without foam
that may muffle the ultrasonic echo too
much.
Since the ultrasonic beam is extremely
narrow (between 3 - 7 ° depending on
the sensor type), Shuttle
® can be used for
measurements in very narrow tanks or wells.
This requires that the ultrasonic sensor is
mounted so it points absolutely vertical
against the surface - or the ultrasonic echo
will simply miss the sensor.
Explosion hazardous areas
The ultrasonic sensor is Ex approved in
accordance with EN 50021:1999 and can
be mounted in Zone 2 without the need of
a zener barrier. Please check local require-
ments before installing in hazarduous
locations.
The level transmitter (= the electronic
box with display) must not be mounted in
explosive hazardous areas.
Mechanical mounting
Level transmitter
Shuttle
® is in IP65 enclosure and can be
mounted outdoors directly on a wall, a
railing or a banister with mounting plate
200240 and universal bracket 200205.
Shuttle ® Ultrasonic Level Transmitter
mounted directly on a wall.
Shuttle ® Level Transmitter mounted on the plant
with mounting plate 200240 and universal bracket
200205.
Shuttle ® must be mounted
vertically in order to observe the
NEMA4X standard.