Ultraflux UF 831, User Manual, Page: 50 / 109

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NT UF 831 CO GB (b) / March 2014
5.5 NORMAL configuration mode
Comment: This section will be restricted to an explanation of the additional functions of normal mode
compared to simple mode. The entire common base already explained in the simple mode section is not
repeated in this section.
5.5.1 "Pipe / fluid settings" menu
1) Memory
The memory is the time, given in seconds, for which the measurement is stored in memory when a
measurement is lost (echo loss).
This storage is used in particular to avoid inopportune actions from the instrumentation and control part of
the installation.
Two situations may arise:
Scenario no. 1: Duration of the loss of measurement less
than the memory storage time. In this case, the flow
meter retains the last measurement until a new
measurement is valid.
Scenario no. 2: Duration of the loss of measurement
greater than the memory storage time. The flow meter
extends the last measurement, until the time which has
passed is greater than the storage time. At this point the
flow measurement becomes faulty and there is still no
new flow measurement valid.
Configured
storage time
Flow
Flow storage
Duration of the
measurement loss
Time
Flow
Flow storage
Duration of the
measurement
loss
Time
Configured
storage time