Emerson Rosemount 3051S Series, Справочное руководство, Страница: 132 / 240

Reference Manual
00809-0100-4801, Rev FA
October 2010
Rosemount 3051S Series
7-28
Temperature Variable
Log
Minimum, Maximum Temperature
The meter indicates the lowest and highest temperature the transmitter has
measured since the last time the value was cleared. The Time Since Event
indicates the elapsed time since that temperature was measured.
Both the Min and Max values can be reset independently. Clicking on Reset
All Temperature Events will reset the Time Since Event clock and sets the
temperature to the currently measured value.
Figure 7-22. Temperature
Variable Logging screen
Time Outside Sensor Limits gives the operator/maintenance personnel an
indication of possible misapplication of the transmitter. The Lower and Upper
operate the same. They both include a Time Since 1st Event, Number of
Events, and Total time.
Total Time Above / Below
This is the accumulated time the temperature sensor has been in an over-
temperature condition. This elapsed total time is independent of the number
of events or frequency; it is the total or sum time the transmitter was in this
condition. These values are not resettable.
Time Since 1st Event
The elapsed time since the first over- temperature was detected. This time
can be reset by clicking the Reset Time Since 1st Events button.
Number of Events
This is the number of times the temperature sensor has been in an over-
temperature condition. These values are not resettable.
Reset Time Since 1st Events
Selecting this reset will set the Since 1st Event for both Above Upper Sensor
Limit and Below Lower Sensor Limit to zero.
Device Dashboard
Fast Keys
3, 2, 3