KROHNE CAPAFLUX IFM 5080 K Datasheet EN - Manual (Page 6)

CAPAFLUX
6 CAPAFLUX
IFC 090 K-CAP Signal converter
Versions
IFC 090 K/B (Standard)
Basic version, without local display and control elements
IFC 090 K/D (Option) Display version, with local display and control elements
IFC 090 K/D-EEx Ex version with “Increased Safety” outputs
Interfaces (option) – HART®
– RS 485/PROFIBUS/FIELDBUS (switch-selectable add-on module)
Add-on equipment (option) CONFIG-Software and adapter for operator control via MS-DOS PC,
connection to internal IMoCom interface (equipment bus)
Current output
Function
– all operating data configurable
– galvanically isolated from current output and all input circuits
– for active or passive mode
Current: fixed ranges 0 – 20 mA and 4 – 20 mA
variable ranges for Q = 0% I
0%
= 0 – 16 mA
for Q = 100% I
100%
= 4 – 20 mA
}
adjustable in 1 mA increments
for Q > 100% I
max
= 22 mA
Active mode max. 500
Ω load
Passive mode external voltage: 15 ... 20 V DC 20 ... 32 V DC
load: min ... max. 0 ... 500
Ω
250 ... 750
Ω
Error identification 0/22 mA and variable
Forward/reverse flow measurement direction identified via status output
Pulse output
Function
– all operating data configurable
– galvanically isolated from all input and output circuits
– digital pulse division, interpulse period non-uniform, therefore if frequency
and cycle meters connected allow for minimum counting interval:
gate time, totalizer
≥ 1000
P100% [Hz]
Active mode connection: electronic totalizers
voltage: approx. 15 V DC, from current output
load: I
max
< 23 mA, operation without current output
load: I
max
< 3 mA, operation with current output
Passive mode connection: electronic or electromechanical totalizers
voltage: external, U
ext
≤ 30V DC/≤ 24V AC
load: I
max
≤ 150mA
Pulse width automatic: pulse duty cycle 1:1, max 1000 pulses/s = 1 kHz
variable: 10 ms – 2 s P
100%
[pulses/s] = f
max
[Hz] =
1
2 x pulse width
Forward/reverse flow measurement flow direction identified via status output
Status output (passive)
Function
configurable as measuring range identification for BA mode,
indicator for flow direction, errors or trip point
Connection voltage: external, U
ext
≤ 30 V DC/≤ 24 V AC
load current: I
max
≤ 150 mA
Control input (passive)
Function
– configurable 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 S1 S2
5) 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%
Cutoff “off” value: 2 – 20% }
of Q
100%
, adjustable in 1% increments