Honeywell ST 800 Series, User Manual

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Revision 5.0 ST 800 Series HART/DE Option User’s Manual Page 83
AVDD Tracking Diagnostics
Table 23 – Maximum and Minimum AVDD Tracking
Max AVDD Parameter Description Maximum Sensor Supply Voltage
experienced by device since last reset
of voltage parameters.
Time since last
AVDD Up Method Description Displays time since last Sensor
Supply Voltage was above last Max
AVDD
Min AVDD Method Description Minimum Sensor Supply voltage
experienced by device since last reset
of voltage parameters.
Time since Last
AVDD Down Method Description Displays time since last Sensor
Supply Voltage was below last Min
AVDD
Sensor CPU Temperature Tracking Diagnostics
Table 24 – Maximum Sensor CPU Temperature Tracking
Max Sensor CPU
Temp. Parameter Description Maximum Sensor CPU Temperature
experienced by device
Set-up none
Time Above
Upper Stress
Limit Parameter Description Accumulation of minutes that Sensor
CPU Temperature has been above
the value of Max Sensor CPU Temp.
Set-up None.
NVM Backup once each 8 hour period
Time Since Last
Sensor CPU
Temp. Up Method Description Time that has passed since the last
time Sensor CPU Temp. has passed
above the value of “Max Sensor CPU
Temp” (in days, hours and minutes).
Set-up none
NVM Backup once each 8 hour period
Table 25 – Minimum Sensor CPU Temperature Tracking
Min Sensor CPU
Temp. Parameter Description Minimum Sensor CPU Temperature
experienced by device
Set-up none
Time Below
Upper Stress
Limit Parameter Description Accumulation of minutes that Sensor
CPU Temperature has been below
the value or Min Sensor CPU Temp.
Set-up none
NVM Backup once each 8 hour period
Time Since Last
Sensor CPU
Temp. Down Method Description Time that has passed since the last
time Sensor CPU Temperature has
passed below the value of “Min
Sensor CPU Temp” (in days, hours
and minutes).
Set-up none
NVM Backup once each 8 hour period