Stress Life; Service Life; Operating Voltage Diagnostics; Table 23 - Operating Voltage Diagnostics - Honeywell ST 700 User Manual

9.2.6 % Stress Life

% Stress Life Parameter

9.2.7 % Service Life

% Service Life Parameter
9.2.8

Operating Voltage Diagnostics

Current Op Parameter
Voltage
Min Op Voltage Parameter
Time Since Method
Last Voltage
Low
Reset Method
Operating
Voltage
Parameters
Revision 4.0
Description
Set-up
NVM
Description
Set-up
NVM
Table 23 – Operating Voltage Diagnostics
Description
Set-up
NVM
Note
Description
Set-up
NVM
Description
Set-up
NVM
Description
Set-up
ST 700 Series HART/DE Option User's Manual
Percent of service life spent in stressful
conditions. Indicates the % of service life
where electronics temperature is within 10%
of respective range limits.% of Service life
spent either in 10% of lower limit range or
10% of upper limit range.
None.
Backup once each 8 hour period
Percent of expected Service Life that device
has been in service. Value is based on
electronics temperature. Service life
accumulates faster at higher temperatures
with an exponential relationship.
None.
Backup once each 8 hour period
Operating voltage available at device
terminals.
None: units always in volts.
none
No accuracy is specified for this
measurement.
This value is intended to be used for
informational purposes only and should not
be used for control.
Minimum operating voltage experienced by
device at terminals since last reset of
operating voltage parameters.
User can reset as desired using method
described in item below.
Backup once each 8 hour period
Displays time since last minimum operating
voltage event in minutes.
User can reset as desired using method
described in item below.
Update every 8 hours.
Causes Min Op Voltage to be set to 32 volts
and Time Since Last Event to be reset to
zero. Within a short period of time Min Op
Voltage will assume operating voltage value.
User actuates as required.
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