Honeywell STT850 Series - Page 49

Revision 4.0 STT850 Series HART/DE Option User’s Manual Page 39
Online/Device
Setup/Basic Setup/
Device Information
Maint Mode
Displays the Maintenance mode set by
Experion PKS.
When a HART device requires maintenance,
the engineer or the operator changes the PV
Source value of the corresponding AI channel
to MAN. As soon as the PV Source value is
changed for the channels connected to the
STT850 transmitters, Experion communicates
the channel mode status to the corresponding
STT850 transmitters. Upon receiving this
status, if the value is MAN, the transmitter
displays an M and Available for Maintenance
on the local display of the transmitter. The
status display on the transmitter ensures that
the field technician can locate and perform the
maintenance work on the correct transmitter
without impacting the integrated devices in the
process loop. The transmitter continues to
display the Available for Maintenance status
on its local display until the PV Source status
of the corresponding AI channel is changed to
AUTO / SUB or the transmitter is power
cycled.
For more information, refer to the Experion
Knowledge Builder
Device ID
Displays the HART unique long address of the
STT850 Temperature Transmitter
Final Asmbly num
Displays the final assembly number of the
STT850 Temperature Transmitter
Universal rev
Displays the HART Universal Revision of the
STT850 Temperature Transmitter
Fld dev rev
Displays Field Device Revision of the STT850
Temperature Transmitter
Software rev
Displays the Electronics Board Software
Revision of the STT850 Temperature
Transmitter
Loop mA
Select the Loop Current Mode configuration:
“Enable”: enables loop current mode
(analog output will operate as a 4 to 20
mA signal consistent with the
transmitter output)
“Disable”: disables loop current mode
(analog output will be fixed at 4 mA)