Operating instructions

WirelessHART Fieldgate SWG70 4 Mechanical Installation
Endress+Hauser 13
4 Mechanical Installation
NOTE!
• It is recommended that Fieldgate SWG70, adapters and devices be setup on the test bench and
the network be tested before the components are installed in the field.
4.1 Mounting considerations
4.1.1 Positioning the Fieldgate
Install the gateway first, before installing other WirelessHART devices. This way you can check for
proper operation of new devices as they are installed. Nevertheless, consider the location of future
WirelessHART devices that will be routed through the gateway to ensure good connectivity.
Guidelines for Planning a WirelessHART Network
• Mark the positions of the various measuring points on a scale overview of the plant. It is
important that the overview shows likely obstacles to the propagation of the radio waves
• Make sure that a minimum of 2 other WirelessHART devices are well within the antenna range
of the device. If necessary, consider using an adapter as an additional stand-alone repeater. For
more information on the antenna characteristics please refer to Chapter 4.1.3.
• Where a lot of metal, grids or walls prevent a device from being in line-of-sight of its nearest
neighbour, the maximum distance between two devices is 30 m. Install wireless devices at
least 1m above the ground or the floor.
• Where there are fewer structural elements and one or more neighbours are in direct line-of-
sight, the maximum distance between two devices for planning purposes is 200 m. In this case,
install wireless devices at least 3m above the ground or the floor.
• Consider moving objects that could affect the device's antenna range.
• Make sure that the device's antenna is aligned vertically.
• If possible, position the Fieldgate at or near the centre of the network - it should be in contact
with at least 20% of the devices in the network.
• Do not position WirelessHART devices directly below or above each other as they will be
outside each other's antenna range, see Chapter 4.1.5.
• If possible, do not position the device next to metal surfaces, pipes or walls containing metal
(minimum distance: 6 centimetres). There should be as little metal around the device as
possible.
• Do not position other 2.4 GHz devices like cordless phone bases or WLAN routers near
WirelessHART devices. Wireless technologies used in an industrial environment must be able
to coexist without disrupting each other. If multiple networks operate in one facility, wireless
frequency management may be required.
4.1.2 Positioning the antenna
Fieldgate FWG70 is supplied with an omnidirectional dipole antenna that must be screwed on
during installation, see Chapter 4.2.1. The antenna characteristics and details of positioning are to
be found in Chapters 4.1.3 to 4.1.5.
If the application requires that the Fieldgate be mounted in a protective enclosure, a remote antenna
must connected to the antenna terminal and mounted outdoors, see Chapter 4.2.2. This antenna
must conform with the requirements described in 4.2.2 and be mounted according to the the
instructions in Chapter 4.2.3. The guidelines for positioning a WirelessHART device also apply to
the positioning of a remote antenna, see Chapter 4.1.5.