User Manual

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.
Settin
g 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.