Yokogawa YFGW710 - Manual (Page 35)

A3-15
IM 01W01F01-01EN
A3.2.4.2 Mounting and Wiring External Antenna
n Mounting of External Antenna
Mount the external antenna at the proper location according to the wireless environment de-
scribed in “A3.1.1 Installation Condition” of this manual.
The mounting to the pipe such as 2-inch (2B) pipe needs to secure the enough strength to en-
dure a strong wind, vibration and so on. The antenna must be mounted vertically.
l Fixing of External Antenna
Fix an external antenna appropriately using the bracket provided as the external antenna option.
Bracket
Antenna
Vertical pipe
mounting Horizontal pipe
mounting
Nut
2-inch pipe
U Bolt
Washer
Nut
Antenna
Extension Cable
FA0313.ai
Fig. A 3-12 Example of fixing external antenna
l Mounting Procedure of External Antenna
1. Fix the antenna extension cable to the bracket with the provided nut as shown in the figure
A3-12 above.
2. Fix the bracket to the 2-inch (2B) pipe by using the provided a pair of U bolts and nuts.
3. Screw the antenna into the antenna connector of the antenna extension cable on the
bracket.
Tighten the antenna connector with a torque of 2 to 3 N∙m.
4. Protect the connection as necessary. For details of the protection, see “A3.2.4 Mounting
Antenna and Wiring.”