Honeywell stt850 SMARTLINE User Manual page 50

Break Detect
Enabled, Disabled
(FF read only)
Latching
Enabled, Disabled
(FF read only)
CJ Type
Internal, External, Fixed
(FF read only)
Fixed CJ Value
(FF read only)
Loop Ctrl Mode
Average, Difference,
(HART/DE)
Sensor 1, Sensor 2,
(DE read only)
Split-Range, Redundant
(Dual input only)
Loop Source
(HART/DE)
(Dual input only)
LRV (HART/DE) #. ##
URV (HART/DE) #. ##
Set LRV
Set Lower Range Value
(HART/DE)
Set URV
(HART/DE) Set Upper Range Value
MRV (HART/FF)
Set Middle Range Value
(FF read only)
Hysteresis
(HART/FF) ###.##
(FF read only)
Bumpless
Damping
##.#
(HART/FF)
(FF read only)
Damping
#. ##
(HART/DE)
Page 40
####.##
Sensor 1, Sensor 2
STT850 Temperature Transmitter User's Manual
Enable or disable detection of Input
wire break
When enabled, causes all critical
sensor input failures to latch to the
Critical Fault state. The fault may
only be cleared by device reset.
When disabled, the critical sensor
input failure will be cleared if the input
recovers.
Determines the source of the Cold
Junction compensation for
thermocouple Sensor types.
When CJ Type is Fixed, specifies the
Cold Junction temperature value for
thermocouple Sensor types. Degrees
Celsius. Fixed CJ temperatures below
-50 degrees have no effect on
measured values.
Mode of Loop control
Input sensor currently controlling the
Loop
The limits are:
the Lower Range Limit (LRL) and the
Upper Range Limit (URL) of the
selected Sensor 1 ID
ATTENTION: Executing this service
will set the Lower Range Value (LRV)
equal to the input pressure
ATTENTION: Executing this service
will set the Upper Range Value (URV)
equal to the input pressure
Limits are the minimum URL and
maximum LRL of the selected Sensor
1 and Sensor 2 IDs. Determines the
point of transition of Loop Control
between Sensor 1 and Sensor 2 for
Split-Range Loop Control Mode.
Hysteresis value relative to the MRV
for the transition of Loop Control
between Sensors when Loop Ctrl
Mode is Split-Range
Damping value for the transition of
Loop Control between Sensors when
Loop Ctrl Mode is Split-Range or
Redundant
Selection applies digital filtering to
suppress noise effects on the PV.
The limits for this value are 0.0 to
32.0 seconds
Press ↵ to
enter
menu
selection
↑ and ↓ to
select
entry.
↵ to enter
Read Only
Parameter
Press ↵ to
enter
menu
selection
↑ and ↓ to
select
digit.
↵ to enter
Revision 3