Honeywell ST 800 Series User Manual

Page 80 ST 800 Series HART/DE Option User’s Manual Revision 5.0
TV Tracking Diagnostics
Table 19 – TV Tracking Diagnostics
Max TV Limit Parameter Description Static Pressure upper operating limit
specification.
Units are always PSI (pounds per square
inch).
Set-up
None.
Max TV Value
Parameter
Description
Highest SP ever experienced by the
device.
Units are always PSI (pounds per square
inch).
Set-up
None.
NVM
Backup once each 8 hour period
Time Above
Upper Stress
Limit
Parameter Description Accumulation of minutes that device’s SP
has been above the value of “SP Upper
Stress Limit”.
Set-up
None.
NVM
Backup once each 8 hour period
Time Since
Last TV Up
Method Description Time that has passed since the last time
device’s SP has passed above the value of
“SP Upper Stress Limit” (in days, hours,
and minutes).
Set-up
None.
NVM
Backup once each 8 hour period
ET Tracking Diagnostics
Table 20 – Maximum ET Diagnostics
Max ET Limit
Parameter
Description
Electronics Temperature (ET) upper
operating limit from specification.
Units are same degree units as has been
selected for SV (Secondary Variable).
Set-up
None.
ET Upper
Limit for
Stress
Condition
Description
Actual limit used in “Time Above Limit” and
“Time Since Last Event”. Value is equal
to “Max ET Limit” less 10% of limits range.
Example
Electronics Temperature range is -40°F to
185°F for a total of 225°F.
“ET Upper Stress Limit”= 185°F - 10% of
225
°
F = 162.5
°
F.
Set-up
None – calculation is automatic.
Max ET Value
Parameter
Description
Highest Electronics Temperature ever
experienced by the device.
Units are same degree units as has been
selected for SV (Secondary Variable).
Set-up
None.
NVM
Update every 8 hour.
Time Above
Upper Stress
Limit
Parameter
Description
Accumulation of minutes that device’s
Electronics Temperature has been above
the value of “ET Upper Stress Limit”.
Set-up
None.
NVM
Backup once each 8 hour period

Honeywell ST 800 Series Specifications

General

Brand	Honeywell
Model	ST 800 Series
Category	Transmitter
Language	English