KROHNE IFC 090 Converter EN - Manual (Page 73)

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Control input (passive)
Function
– settable for range change, totalizer reset, error reset,
set outputs to min. values or hold actual output values
– initiate function by “low” or “high” control signals
Control signals U max : 24 V AC 32 V DC (any polarity)
low:
≤
1,4 V
≤
2 V
high:
≥
3 V
≥
4 V
Output/input combinations I = current output P = pulse output
S = status output C = control input
the following combinations can be set:
1) I
P S
2) I P C
3) I C S
4) I S C
5) I S1 S2
6) I C1 C2
Time constant 0.2 – 99.9 s, adjustable in increments of 0.1 second
Low-flow cutoff Cutoff “on” value: 1 – 19% of Q
100%
, adjustable
Cutoff “off” value: 2 – 20% in 1% increments
Local display (D version) 3-field LCD
Display function actual flowrate, forward, reverse and sum totalizers
(7-digit), or 25-character bar graph with percentage
indication and status messages
Units: Actual flowrate m 3 /h, liter/s., US gallons/min or user-defined unit,
e. g. liters/day
Totalizer m 3 , liters, US gallons or user-defined unit,
e. g. hecto-liters or US gallons/day
(adjustable count duration up to overflow)
Language of plain texts English, German, French, others on request
Display: Top field 8-character, 7-segment numeral and sign display,
and symbols for key acknowledgement
Middle field 10-character, 14-segment text display
Bottom field 4 markers to identify display in measuring mode
Operator control – 3 keys
→ ↵ ↑
or
– 3 magnetic sensors and the supplied
bar magnet without opening the housing
Power supply
1. Rated voltage
Tolerance band
2. Rated voltage
Tolerance band
Frequency
Power consumption
(incl. primary head)
Housing
Material
die-cast aluminium with polyurethane finish
Ambient temperature – 25 to + 60°C (– 13 to + 140°F)
Protection category (IEC 529/EN 60 529) IP 67, equivalent to NEMA 6
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1. AC Version 2. AC Version AC/DC Version
Standard Option Option
230 / 240 V 200 V 24 V AC 24 V DC
200 – 260 V 170 – 220 V 20 – 27 V AC 18 – 32 V DC
115 / 120 V 100 V – –
100 – 130 V 85 – 110 V – –
48 – 63 Hz 48 – 63 Hz –
approx. 10 VA approx. 10 VA approx. 8 W
When connected to functional extra-low voltage, 24 V, safety separation (PELV)
is essential (to VDE 0100/VDE 0106 and IEC 364/IEC 536 or equivalent
national standard).