Function group
PROCESSING PARAMETERS
LOW FLOW
CUTOFF
Set the required switch point for the creepage (low flow cutoff). The creep
suppression prevents the flowrate being registered in the lower part of the
measuring range, e.g. by a variable column of liquid at standstill.
Note!
• When creep suppression is active, the sign of the flow appears optically
inverted on the display.
• The max. creepage depends on the nominal diameter of the sensor
currently being used and corresponds to a flow velocity v = 1 m/s.
6
5-digit number with floating decimal point (e.g. 15.000 dm
3
/min)
Unit selection → see function “FLOW RATE UNIT”
Factory setting:
dependent
on the nominal diameter
7
HYSTERESIS = 50%
Creep suppression operates with a negative hysteresis of 50%.
NOISE
SUPPRESS.
Using the interference blanking (= software filter) the sensitivity of the flow
measurement signal can be reduced with respect to transient flows and
interference peaks; e.g. with fluids containing solids or gas bubbles.
6
OFF – LOW –
MEDIUM
– HIGH
Q [Vol/time]
1 Suppression switched on
2 Suppression switched off
suppression
active
suppression
active
time
creepage
100%
ba009y38
50%
Note!
6 Description of Functions Promag 33
72 Endress+Hauser
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