Endress+Hauser Proline Promass 83 - Page 119

Device Functions Proline Promass 83 FOUNDATION Fieldbus 3 Transducer Block
Endress+Hauser 119
Low Flow Cut Off -
Off-Value
AUTO - OOS Use this function to enter the off-value (b) for low flow cut off.
Enter the off-value as a positive hysteresis (H) from the on-value (a).
User input:
Integer 0 to 100%
Factory setting:
50%
A0003882
m = On-value, n =Off-value
a Low flow cut off is switched on
b Low flow cut off is switched off (a + a
⋅ H)
H Hysteresis value: 0 to 100%
■ Low flow cut off active
Q Flow
Process - Pressure
Shock Suppression
AUTO - OOS The closure of a valve can cause brief but severe movements of the fluid in
the piping system, movements which the measuring system registers. The
pulses totaled in this way result in a totalizer reading error, particularly in
the case of filling processes. For this reason, the measuring device is
equipped with pressure shock suppression (= short-term signal suppression)
which can eliminate system-related "disruptions".
! Note!
Note that pressure shock suppression cannot be used unless the low flow cut
off is active (see parameter "Low Flow Cut Off - On-Value" → Page 118).
Use this parameter to define the time span for active pressure shock
suppression.
(Continued on next page)
"Flow" Transducer Block / base index 1400:
Parameter
Write access
with operating
mode
(MODE_BLK)
Description
t
H
Q
m
n
b
a