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OPERATING MANUAL TMU / UMC3
7.2.5.3
Mass flow QM range
This function allows the operator to set the upper-range value for mass flow. The upper-range value takes on
the unit defined using the Mass flow unit function. The upper-range value will scale the current and frequency
outputs assigned to mass flow. After choosing the Mass flow QM range function and pressing “
”, the following
selection field will be displayed:
QM range=100%
XXXXX.XX kg/h
The current QM-range value for mass flow is displayed and can be changed by toggling the arrow keys.
Pressing the “
” key confirms the entry.
7.2.5.4
Mass flow QM limit MIN
The MIN limiting value for mass flow can be evaluated via the status output. You enter the value as a
percentage of the set upper-range value. If the mass flow is lower than that limit value, the status output will
be set in case the corresponding assignment has been made. If the alarm function has also been activated for
the assigned current output, the applied current will change to < 3.2 mA or > 20.5 mA / 22 mA.
After choosing the Mass flow QM limit MIN function and pressing “
”, the following selection field will be
displayed:
Mass flow limit
MIN = 10 %
The current MIN flow limit value for mass flow will be displayed and can be changed by toggling the arrow keys.
Pressing the “
” key confirms the entry.
7.2.5.5
Mass flow QM limit MAX
The MAX limiting value for mass flow can be evaluated via the status output. You enter the value as a
percentage of the set upper-range value. If the mass flow surpasses this limit value, the status output will be
set in case the corresponding assignment has been made. If the alarm function has also been activated for the
assigned current output, the applied current will change to < 3.2 mA or > 20.5 mA / 22 mA.
After choosing the Mass flow QM limit MAX function and pressing “
”, the following selection field will be
displayed:
Mass flow limit
MAX = 90 %
The current MAX flow limit value for mass flow will be displayed and can be changed by toggling the arrow
keys.
Pressing the “
” key confirms the entry.