PrimaX® IR
35
Accessories
GB
7.4
HART Module
The HART Module is a 316 Stainless Steel enclosure that provides a hazardous area approved HART
port for access to the HART signal. The PrimaX IR can be mounted to this module using an available
port and all applicable facility wiring rules from Section apply to wiring the HART Module.
Fig. 26
HART module
An optional cable is available from MSA to connect to the XP HART port from a hand-held controller.
7.5
Insect Guard/Remote Calibration Inserts
For applications where HART is being used for calibration and the sensor is located in a remote loca-
tion where use of the calibration cover is not practical, optional screen inserts are available. These
inserts snap into the environmental guard (see Fig. 27) and permit a very slow diffusion of gas through
the tight mesh screens. This allows enough zero and span gas to be retained in the environmental
guard for the calibration procedure to be accurate for still air applications.
CAUTION!
Use of these inserts will increase the sensor response time to ambient gas conditions up to
210 seconds. Ensure that the operational conditions are appropriate for use of these screens.
These screens can be used as an insect guard.
