Yokogawa EJX530B - Manual (Page 22)

<4. Installation>
4-3
IM 01C27F01-01EN
4.5 Changing the direction of
the antenna
Adjust the direction of the antenna to be in the
upright position. Figure 4.5 show factory setup
antenna position. If the transmitter is installed to
horizontal impulse piping, follow the procedure
below and change the antenna position.
1) Loosen the two mounting screws at the bottom
of the antenna by using a 2.5mm Allen wrench
(see Figure 4.5). The screws might come off
and be lost if loosened too much; loosen the
screws by about three rotations.
2) Press forward and down 90 degrees by rotating
the axis at the bottom of the antenna.
3) Tighten the two screws to a torque of 1.5 N·m
by using a torque wrench. When doing this, be
careful not leave a gap between the antenna
and housing.
F0405.ai
Figure 4.5 Mounting Screw Position
F0406.ai
Figure 4.6 Adjusting Antenna Position