Operate
6.2 Parameter description
SITRANS VP300 with or without HART
Operating Instructions, 03/2011, A5E01258666-03
117
"3.6.7.7 Start"
Requirements:
Activation of the monitoring function
"3.6.7.1 Activation" (Page 115)
Purpose:
Starting and interruption of generation of average value.
Description:
With this function you can control generation of the average value for
the device (average position value and reference position value).
Press . The function is started, the reference position valueis
generated. "Next" is output in the display with a black background. In
order to interrupt the calculation, e.g. for maintenance work, press .
"Pause" is output in the display with a black background.
In the "3.6.7.3 Status" (Page 116) parameter you can read whether
generation of the average value can be started, and whether the
reference position value or the average position value is generated.
You can also see here whether the calculation is currently set to
"Pause".
"3.6.8 Lower limit temperature"
This menu is used to make all settings regarding monitoring of the lower temperature limit.
The actual temperature in the housing interior is measured on a continuous basis and
compared with the corresponding thresholds. If one of the three parameterizable thresholds
falls below this value during the test, a maintenance message is output by the device.
See also
"3.6.9 Upper limit temperature" (Page 118)
"3.6.8.1 Activation"
Factory setting:
Off
Setting options:
Off
On
Purpose:
Monitor lower temperature limit.
Description:
When the parameter is active, the positioner monitors the lower
temperature limit in the housing interior on a continuous basis. The
actual temperature is registered by a sensor on the electronic
conductor board. The temperature limit is monitored by three
thresholds. Please check whether the "thresholds" apply to your
application.
