KROHNE IFC 090 Converter EN - Manual (Page 32)

5/1
5 Description of functions
π
4
π
4
5.1 Full-scale range Q
100%
Fct. 1.01 FULL SCALE
Press
→
key.
Choice of unit for full-scale range Q
100%
• m3/hr (cubic metres per hour)
• Liter/Sec (litres per second)
• US.Gal/min (US gallons per minute)
• User-defined unit, factory-set is „Liter/hr“ (litres per hour) or “US MGal/day”, see Sect. 5.13.
Select with
↑
key.
Use
→
key to transfer to numerical setting, 1st number (cursor) flashes.
Set full-scale range Q
100%
The setting range is dependent on meter size (DN) and flow velocity (v).
Q
min
= DN 2 x v
min
Q
max
= DN 2 x v
max
(refer to flow table in Sect. 10.1)
0.0053 – 33 929 m 3 /hr
0.00147 – 9 424.5 Liter/Sec
0.00233 – 151 778 US.Gal/min
Change flashing number (cursor) with
↑
key.
Use
→
key to shift cursor 1 place to right.
Press
↵
key to return to Fct. 1.01 FULL SCALE.
Note if “VALUE P” is displayed after pressing
↵
key:
PULSE/VOL. is set under Fct. 1.06 PULS B1, subfunction “SELECT P”. Due to the changed
full-scale range Q
100%
, the output frequency (F) of the pulse output will be over- or undershot:
P
min
= F
min
/ Q
100%
P
max
= F
max
/ Q
100%
Change pulse value accordingly, see Sect. 5.7 pulse output B1, Fct. 1.06.
5.2 Time constant
Fct. 1.02 TIMECONST.
Press
→
key.
Choice
•
ALL (applies to display and all outputs)
• ONLY I (applies only to display, current and status output)
Select with
↑
.
Transfer to number setting with
↵
key. 1st number (cursor) flashes.
Set numerical value
•
0.2 - 99.9 Sec (seconds)
Change flashing number (cursor) with the
↑
key.
Use
→
key to shift cursor 1 place to right.
Press
↵
key to return to Fct. 1.02 TIMECONST.