Vega WHA-GW-WIRELESSHART GATEWAY Bedienungsanleitung PDF herunterladen (Seite 30)

221981 2011-07

WHA-GW-*

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.

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Vega WHA-GW-WIRELESSHART GATEWAY Bedienungsanleitung Seite 30