Manual

ELECTRICAL CONNECTIONS 4
33
IFC 050
www.krohne.com08/2013 - 4002184002 - MA IFC 050 R02 en
4.9.2 Pulse and frequency output
• All outputs are electrically isolated from each other and from all other circuits.
• All operating data and functions can be adjusted.
• Passive mode:
External power supply required: U
ext
≤ 32 VDC
I ≤ 100 mA at f ≤ 10 kHz (over range up to f
max
≤ 12 kHz)
• Active mode:
Use of the internal power supply: U
nom
=20VDC
I
Peak
< 100 mA
I
Average
≤ 10 mA at f ≤ 10 kHz (over range up to f
max
≤ 10 kHz)
• Scaling:
Frequency output: in pulses per time unit (e.g. 1000 pulses/s at Q
100%
);
Pulse output: quantity per pulse.
• Pulse width:
symmetric (pulse duty factor 1:1, independent of output frequency)
automatic (with fixed pulse width, duty factor approx. 1:1 at Q
100%
) or
fixed (pulse width adjustable as required from 0.05 ms...2 s)
• Forward / reverse flow measurement (F/R mode) is possible.
• The pulse and frequency output can also be used as a status output / limit switch.
INFORMATION!
Depending on the version, the outputs must be connected passively or actively!
INFORMATION!
For further information refer to Connection diagrams of outputs on page 36
and refer to
Technical data on page 71 .