Honeywell STT850 Series - Page 104

Page 94 STT850 Series HART/DE Option User’s Manual Revision 4.0
Non Critical
Comm Module
Temp
OK
OVER TEMP
OVERTEMP: Electronics
temperature is greater than 85C or
less than -40C.
DAC Temp Comp
HART/DE only
OK
NO COMPENSATION
The DAC has not been compensated
for temperature effects. This is a
factory operation.
Sensor Comm
OK
SUSPECT
SUSPECT: The interface between
the Temperature Sensor Module and
the Electronics Module is
experiencing intermittent
communication failures.
Display Setup
HART/DE only
OK
NVM Corrupt
NVM Corrupt: The Display memory is
corrupt.
Excess: Delta
(Dual Inputs only)
(HART/FF only)
OK
EXCESSIVE
EXCESSIVE: Delta value exceeds
Delta Limit
Internal Power
(HART only)
OK
LOW OR HIGH
LOW: Internal power is below 2.9V”
and “HIGH: Internal power is above
3.4V.
Digital Output
ON
OFF
ON or OFF State of the Digital
Output.