Installation and operating instructions
IFC 020
5/2
Low-flow cutoff 5.3
Fct. 1.03 L.F.CUTOFF
Press
→
key.
Choice
• OFF
(fixed tripping point:
ON = 0.1 % / OFF = 0.2 %
with 100Hz and 1000Hz, see Fct. 1.06; 1% resp. 2%)
• PERCENT
(variable tripping points: ON = 1 - 19 % / OFF = 2 - 20 %)
Select with
↑
or
↓
key.
Transfer to number setting using
→
key (only if “PERCENT” selected).
1st number (cursor) flashes.
Setting the numerical value when “PERCENT” selected
• 01
to
19
(cutoff “on” value, left of hyphen)
• 02
to
20
(cutoff “off” value, right of hyphen)
Change flashing number (cursor) with the
↑
or
↓
key.
Shift cursor 1 place to right using
→
key.
Press
↵
key to return to Fct. 1.03 L.F.CUTOFF.
Note:
The cutoff “off” value must be greater than the cutoff “on” value.
Continuation see next page
Display 5.4
Fct. 1.04 DISPLAY
Press
→
key.
→
DISP. FLOW = select unit for display of flowrate,
press
→
key
• NO DISP.
(no display)
• m3/hr
(cubic metres per hour)
• Liter/Sec
(litres per second)
• US.Gal/min
(US gallons per minute)
•
user-defined unit, factory-set:
“Liter/hr”
(litres per hour) or
“US MGal/day”,
see Sect. 5.14
• PERCENT
(percentage display)
• BARGRAPH
(numerical value and bar graph display in %)
Select with
↑
or
↓
key.
Press
↵
key to transfer to subfunction “DISP. TOTAL”.
→
DISP. TOTAL = select unit for totalizer display,
press
→
key
• NO DISP.
(no display)
• OFF
(internal totalizer switched off)
• + TOTAL. • – TOTAL. • +/– TOTAL. • SUM (
ΣΣ
) • ALL (sequential)
Select with
↑
or
↓
key.
Transfer to totalizer unit setting using
↵
key.
• m3
(cubic metres)
• Liter
(litres)
• US.Gal
(US gallons)
•
user-defined unit, factory-set:
“Liter”
or
“US MGal”
, see Sect. 5.14
Select with
↑
or
↓
key.
Transfer to totalizer format setting using
→
key.
