Siemens SITRANS VP300, Руководство по эксплуатации

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Operate
6.2 Parameter description
SITRANS VP300 with or without HART
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Operating Instructions, 03/2011, A5E01258666-03
Example:
Position Name of selected trend. In the example graph, parameter "3.7.2.1 Position", i.e.
the trend of the position, has been selected.
x axis The unit is per the selected trend period
-30 MIN, -8 HOURS, -5 DAYS, -2 MONTHS, -30 MONTHS
In the sample graphic, a trend period of "-30 MIN" has been selected for the
position. This shows the progress of the variable during the last half hour.
y axis Depending on the selected trend, the values on the y axis mean the following:
Trend Lower limit Upper limit Unit
Position 0 100 %
Deviation of control -10 10 %
Stiction 0 10 %
Lower endstop -5 5 %
Upper endstop -5 5 %
Temperature -40 (-40) 85 (185) °C (°F)
Deadband 0 5 %
6.2.3.8 "3.8 Temperature"
This menu is used to enter the current temperatures inside the housing of the field device.
You can also access temperature-related information:
● Actual temperature
● Minimum temperature
● Maximum temperature
● Display of temperature zone histogram
"3.8.1 Current"
Setting range: Read only
Purpose: Temperature indicator
Description: This value indicates the current temperature inside the housing. This
temperature can be measured and displayed in °C or °F depending on
the setting.
If you want to change the unit, change over to parameter:
"3.8.4 Unit" (Page 123)