Installation and operating instructions
IFC 020
5/11
I
I
max
I
100%
I
0%
Q
R
Q
F
%
0
%
100 Max
P
115%
P
100%
P= 0 Hz
Q
R
Q
F
%
0
%
100 Max
P
max
I
I
max
I
100%
I
0%
Q
R
Q
F
%
0
%
100 Max
Max 100
P
115%
P
100%
P= 0 Hz
Q
R
Q
F
%
0
%
100 Max
Max 100
P
max
S
Q
R
Q
F
%
0
%
100 Max
Max 100
5.13 F/R mode, forward/reverse flow measurement
• Refer to Sect. 2.4 for electrical connection of outputs.
• Define direction of forward (normal) flow,
see Fct. 3.02, subfunction “FLOW DIR.”:
in conjunction with F/R operation, set the direction for the forward flow here.
“+” signifies the same direction as shown by the arrow on the primary head,
“–” signifies the opposite direction.
•
Set the
status output
to ”F/R INDIC.”, see Fct. 1.07.
• Current and/or pulse output
must be set to “2 DIR.”, see Fct. 1.05 and 1.06, subfunctions
“FUNCT. I” and “FUNCT. P”.
5.14 Characteristic of outputs
I
Current output
I
0%
0 or 4 mA
I
100%
20 mA
P
Pulse output
P
100%
Pulses at Q
100%
, full-scale range
Q
F
1 flow direction, forward flow in F/R operation
Q
R
Reverse flow in F/R operation
Q
100%
Full-scale range
S
Status output
switch open
switch closed
1 flow direction
2 flow directions,
F/R mode
