SKF On-line System WVT User Manual page 79

WARNING! EXPLOSION HAZARD! Connection and disconnection of cables and
antennas may cause a spark that can ignite a potentially explosive atmosphere.
Connect or disconnect cables and antennas only in the absence of a potentially
explosive atmosphere.
WARNING! LIGHTNING STRIKE DAMAGE HAZARD! With outdoor mountings,
install surge protectors to help guard devices against lightning strike damage.
Avoid installation and maintenance during thunderstorms.
Only trained, qualified personnel should carry out mounting and installation of the
remote antenna and related accessories.
If the antenna is mounted outdoors, you should include a surge protector in the
installation. While a surge protector will shield the device against a lightning strike, it
does so at the cost of some loss of in the radio signal strength usually specified in dB in
the surge protector's data sheet. The loss should be taken into account in the link
budget calculation.
When a surge protector is used, two sections of coaxial cable are required. Follow the
installation instructions given by the manufacturer of the surge protector. The diagram
below illustrates the installation setup.
SKF Multilog On-line System WVT
User Manual
Figure 5 - 8.
External Antenna Mounted to Pole.
Setting Up the SKF Multilog WVT
Mounting the External Antenna
5 - 11