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Procedural Considerations
Alarm
Break Detect(STT25H) -
select Disabled or Enabled
When Enabled, the
transmitter checks for open
Thermocouple.
Latching Alarm - select
Disabled or Enabled
When Enabled, the output
remains in Failsafe until the
critical status condition is
cleared, and the transmitter
is reset.
When Disabled, if the
transmitter goes to Failsafe,
the transmitter will clear
Failsafe as soon as the
critical status condition is
cleared.
Diagnos-
Refer Table 11 for more
tics
information.
/Service
Menu
Calibra-
Refer to:
tion
Table 12 - Zero Trim (not
Menu
supported for STT25T or
STT25H)
Table 14 - Reset Corrects
(ST3000 and (STT25H)
Table 15 - Loop Test
Table 16 - D/A Trim
Page 46
Honeywell HART Main Menu Procedures
Click on the
Clear Latching
clear the Failsafe condition
if the Latching Alarm is
Enabled.
XS Delta Detection
(STT25T) – Select On or
Off. When On, if the
difference (Delta) between
PV1 and PV2 exceeds the
Delta Alarm value, the
device goes into Failsafe,
and a critical alarm is raised.
When Off, if the Delta
Alarm value is exceeded,
the device will not go into
failsafe, and a non-critical
alarm is raised.
34-ST-25-20 MC Toolkit User Manual
button to
Refer to:
Table 13 - Corr. Input LRV
and Corr. Input URV
(ST3000 and STT25H)
Table 17 - Apply Values
Release 3
9/06
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