VEGA WHA-GW-WIRELESSHART GATEWAY - Manual (Page 30)

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Installation
3.5 Connecting the Antenna
An antenna is supplied with the device. However, if the device is mounted indoors, or if
there are many metal obstacles near the device, it is better to use a suitable remote
antenna instead.
The remote antenna should be installed outdoors in a position where it is within the
antenna range of other WirelessHART devices. To minimize signal loss, the cable
connecting the remote antenna to the Gateway should not be longer than 10 m.
The guidelines for positioning a WirelessHART device also apply to the positioning of a
remote antenna (see chapter 3.1.1).
Connecting the antenna
Firmly screw the antenna or a a remote antenna to the device's antenna terminal (see
Figure 2.5 on page 17).
Danger!
Loss of the device's certification
Only use antennas that are specified in the data sheet.
Danger!
Explosion hazard in Zone 2 when operating powered Gateway
If the Gateway is installed in Zone 2 and connected to power, there is an explosion hazard
when operating DIP switches, buttons or connecting/disconnecting cables.
The operation of DIP switches/buttons and the connection/disconnection of any cables in
Zone 2 is only permitted in the absence of a hazardous atmosphere or if the device is
disconnected from power!
Note!
Only antennas of the type W-ANT-2400-2DB-ROD or remote antennas with an antenna
gain  2 dBi may be connected to the device.