Siemens SITRANS FUH1010PVDX, Руководство по эксплуатации, Страница: 140 / 308

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CQO:1010PVXFM-3 Section 5
5.5.3 MEMORY/FAULT SET
Certain situations (e.g., an empty pipe or excessive aeration) will interrupt data production. Use Memory/
Fault Set to select the meter response to such an interruption. The Fault setting (default) will zero the flow
rate output and declare an alarm on a flow display screen, Datalogger report and an assigned relay
output.
For some applications, occasional temporary Fault conditions may be a normal part of the process and
would not require an alarm response. The system offers a Memory operating mode to support such an
application. Memory Mode suspends the system’s Fault response by preventing the flow outputs from
dropping to zero for the interval specified in the [Memory Delay] menu cell. During the Memory duration,
the meter will maintain the last valid flow reading measured before the onset of the fault condition. The
default Memory Delay is 60 seconds. You may select any duration from 3 to 604,800 seconds (one
week).
To select Memory mode:
To access the [Memory/Fault] option list press
Move the cursor down to [Memory] by pressing
To make selection press
This moves the highlight to [Memory Delay <sec>].
Memory Delay <sec>
Selecting [Memory] activates the suppressed [Memory Delay] menu cell. It allows you to specify the
number of seconds that the meter maintains its last valid flow reading. When the memory delay expires,
it triggers the fault alarm response described previously.
To specify the Memory Delay:
To enable numeric entry press
Use PC numeric keys or Magnetic Wand to enter the delay in seconds.
To register the new value press
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