7 Block BASIC FUNCTION Device Functions Proline Promass 83 FOUNDATION Fieldbus
52 Endress+Hauser
7.2 Group PROCESS PARAMETER
7.2.1 Function group CONFIGURATION
BASIC FUNCTION G
⇒
FOUNDATION FIELDBUS GGA
⇓
PROCESS PARAMETER GIA
⇒
CONFIGURATION 640
Function description
BASIC FUNCTION → PROCESS PARAMETER → CONFIGURATION
ASSIGN LOW FLOW
CUT OFF
(6400)
Use this function to assign the switching point for low flow cut off.
Options:
OFF
MASS FLOW
VOLUME FLOW
CORRECTED VOLUME FLOW
Factory setting:
MASS FLOW
ON-VALUE LOW
FLOW CUT OFF
(6402)
Use this function to assign a value to the switch-on point for low flow cut off.
Low flow cut off is active if the setting is a value not equal to 0. The sign of the flow
value is highlighted on the display to indicate that low flow cut off is active.
User input:
5-digit floating-point number, (unit)
Factory setting:
Depends on nominal diameter and country → Page 90 ff.
! Note!
The appropriate unit is taken from the function group SYSTEM UNITS ( → Page 14).
OFF-VALUE LOW
FLOW CUT OFF
(6403)
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
t
H
Q
m
n
b
a
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