Emerson CSI 9420 Reference Manual page 16

Configuration
3.
10
Figure 2-2: Field Communicator and power module connection
Configure using a Field Communicator, AMS Device Manager, or any HART-enabled
host.
Press Send to send configuration changes to the transmitter.
The CSI 9420 enters "HART Listen" mode for communication on the wired interface.
HART Listen is displayed on the optional LCD, if it is installed.
If the device is unable to enter the HART Listen mode during its boot sequence or
while performing its real-time vibration measurement, retry the initial wired HART
handshaking sequence.
If repeated attempts to establish wired communication fail, you can force the device
into a HART Listen mode by removing the transmitter front cover and pressing the
CONFIG button once. Once the device enters HART Listen mode, it remains in this
mode until you press the CONFIG button, the power cycles, or no activity is seen on
the wired interface for three minutes. Pressing the CONFIG button a second time
causes the device to exit HART Listen mode.
CAUTION!
The front electronics end cap (the cap covering the LCD) is certified for Class I, Division I
in appropriate gas environments (check the nameplate on the device for details).
Exposing the electronics to a production environment can allow particulates, moisture,
and other airborne chemicals to enter into the device, which could lead to
contamination and potential product performance issues. In all cases, whenever
opening the front end cap, be sure to seal it completely afterwards by tightening until
the black O-ring is no longer visible. For an illustration on how to properly seal the end
cap, see Figure 3-12.
MHM-97408, Rev 15