L-737-3-E
7
}
}
900
800
700
600
500
400
300
200
100
0
Open
Short
High alarm
[900]
Hysteresis
of H/L alarm
[100]
Low alarm
[200]
Time
H/L alm active
H/L alm active
Low alarm arises
as instant mass
flowrate falls below
low alarm value.
High alarm arises
as instant mass
flowrate exceeds
low alarm value.
Low alarm canceled as
instant mass flowrate
exceeds [low alarm + H/L
alarm hysteresis].
High alarm canceled as
instant mass flowrate falls
below [high alarm + H/L
alarm hysteresis].
Instant mass flowrate [kg/min]
Status output
() An example of settings and assignments
Status output assignment (Function):
H/L Alarm
Active output of status output (Mode):
Off Active
H/L alarm value assignment (Assign):
Mass Flow
Alarm type selection (H/L Alm. Type):
H/L Alarm
High alarm value setting (High Alm. Po.):
00 [kg/min]
Low alarm value setting (Low Alm. Po.):
00 [kg/min]
High/low alarm hysteresis value setting (H/L Alm. hys): 00 [kg/mn]