18 • Chapter 3: Installation
AirLink 7543 Gas Monitor Operator’s Manual
WirelessHART Setup
If the AirLink 7543 was ordered with WirelessHART, a module will be installed on the Terminal
Board and the Modbus output will not be user-accessible.
1. Drill a hole in the housing and install the 2.4 GHz WirelessHART antenna. If the antenna receiving
the detector signal is also a 2.4 GHz antenna, then remote either the receiving antenna or the
WirelessHART antenna away from the AirLink 7543. If the receiving antenna is a 900 MHz
antenna, then the WirelessHART antenna can be installed on the AirLink 7543’s enclosure.
WARNING: Seal the hole for the antenna or for the antenna cable to ensure water does not enter
the enclosure.
2. Connect a HART communicator to the “H+” and “H-” terminals on the Terminal Board to make
configuration settings.
