KROHNE IFC 010 Converter EN User Manual
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π
4
π
4
Q
actual flowrate
Q
100%
100% flow = full scale range
Q
max
=
DN
2
x v
max
/ max. full-scale range (Q
100%
)
at v
max
= 12 m/s / 40 ft/s
Q
min
=
DN
2
x v
min
/ min. full-scale range (Q
100%
)
at v
min
= 0.3 m/s / 1 ft/s
S
Status output, control input
SMU
Low-flow cutoff for I and P
v
Flow velocity
v
max
Max. flow velocity (12 m/s / 40 ft/s) at Q
100%
v
min
Min. flow velocity (0.3 m/s / 1 ft/s) at Q
100%
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4
4.4 Table of settable functions
Abbreviations used
DN
Nominal size, meter size
F
max
Highest frequency of the pulse output
F
min
Lowest frequency of the pulse output
F
M
Conversion factor volume for any unit,
see Fct. “FACT. VOL.”
F
T
Conversion factor time for any unit,
see Fct. 3.05 “FACT. Time”
F/R
Forward/reverse flow in F/R mode
GKL
Primary constant
I
Current output
P
Pulse output
P
max
= F
max
/ Q
100%
P
min
= F
min
/ Q
100%
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4
Fct.
Text
Description and settings
1.00
OPERATION
Operations menu
1.01
FULL SCALE
Full-scale range for flowrate Q
100%
Select unit
• m
3
/hr
• Liter/Sec
• US.Gal/min
• user unit, factory set is “Liter/hr” or “US MGal/day” (see Fct. 3.05)
Press
→
key to transfer to number setting.
Setting ranges
The ranges are dependent on the meter size (DN) and the flow
velocity (v): Q
min
= DN
2
x v
min
Q
max
= DN
2
x v
max
Nom. dia. /meter size
v
min
= 0,3 m/s (1 ft/s) v
max
= 12 m/s (40 ft/s)
• DN 2.5–1000 /
1
/
10
”– 40”:
0.0053 –
0
33 900 m
3
/hr
0.0237 –
152 000 US.Gal/min
Press
↵
key to return to Fct. FULL SCALE.
→
VALUE P
Pulse value (Fct. 1.06
“VALUE P”
) has been changed.
With the “old” pulse values the output frequency (F)
would have been exceeded or not reached.
P
min
= F
min
/ Q
100%
P
max
= F
max
/ Q
100%
Check new values!
1.02
TIMECONST.
Time constant
Select:
• ALL (applies to display and all outputs)
• ONLY I+S (only display, current and status outputs)
Press
↵
key to transfer to number setting.
Range:
• 0.2 – 99.9 Sec
Press
↵
key to return to Fct. 1.02 TIMECONST.
1.03
L.F.CUTOFF
Low-flow cutoff (SMU)
• OFF (fixed trip points: ON = 0.1% / OFF = 0.2%
for 100 and 1000 Hz, see Fct. 1.06, 1% or 2%)
• PERCENT (variable values)
ON OFF
1 – 19% 2 – 20%
Press
→
key to transfer to number setting.
Note: Cutoff “off” value must be greater than cutoff “on” value.
Press
↵
key to return to Fct. 1.03 L.F. CUTOFF.