KROHNE IFC 210 E-EEx EN - Manual (Page 30)

Sect. 4.4 Part B IFC 210 Signal converter
IFC 210 E 05/2002
30
4.4 Table of settable functions
Abbreviations used
B1/B2 Status output, control input Q actual flowrate
DN Nominal size, meter size Q
100%
100% flow = full scale range
F
M
Conversion factor volume for any unit,
see Fct. 3.05 “Factor Volume” Q
max
= DN 2 × v
max
(=max. full-scale range Q
100%
F
max
Highest frequency of pulse output at v
max
= 12 m/s / 40 ft/s )
F
min
Lowest frequency of pulse output
F
T
Conversion factor time for any unit, Q
min
= DN 2 × v
min
(=min. full-scale range Q
100%
see Fct. 3.05 “Factor Time” at v
min
= 0,3 m/s / 1 ft/s )
GK Primary constant
I Current output SMU Low-flow cutoff for I and P
I
0%
Current at 0% flow v Flow velocity
I
100%
Current at 100% flow v
max
Max. flow velocity (12 m/s / 40 ft/s) at Q
100%
I
max
I Max. v
min
Min. flow velocity (0.3 m/s / 1 ft/s) at Q
100%
P Pulse output F/R Forward/Reverse flow at F/R operation
P
max
= F
max
/ Q
100%
P
min
= F
min
/ Q
100%
I
Error
I Error, I
0%
≤ I
Error
≥ I
max
Fct. Display- Texts 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 ×
v
min
Q
max
= DN 2 ×
v
max
Nom. dia. /meter size v min = 0,3 m/s (1 ft/s) v max = 12 m/s (40 ft/s)
•
DN 2.5–1600 / 1 /
10
– 64: 0.0053 – 86 859 m 3 /hr
0.0237 – 401 080 US Gal/min
Press ↵ key to return to Fct. 1.01 FULL SCALE.
VALUE P Pulse value 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 Current output (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 values: ON = 0.1% / OFF = 0.2%)
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.
π
4
π
4
π
4
π
4