KROHNE MFC 400 EN - Manual (Page 127)

TECHNICAL DATA
8
127
MFC 400
www.krohne.com 08/2013 - 4002075802 - MA MFC 400 R02 en
HART HART HART HART ®
Description HART ® protocol via active and passive current output
HART ® version: V7
Universal HART ® parameter: completely integrated
Load ≥ 250 Ω at HART ® test point;
Note maximum load for current output!
Multidrop operation Yes, current output = 4 mA
Multi-drop address adjustable in operation menu 1...15
Device drivers Available for FC 375, AMS, PDM, FDT/DTM
Registration (HART
Communication Foundation)
Yes
Pulse or frequency output Pulse or frequency output Pulse or frequency output Pulse or frequency output
Output data Pulse output: volume flow, mass flow, mass or volume of dissolved substance
during activated concentration measurement
Frequency output: flow velocity, mass flow, temperature, density, diagnostic value
Optional: concentration, flow of the dissolved substance
Function Can be set as a pulse output or frequency output
Pulse rate/frequency 0.01...10000 pulses/s or Hz
Settings Mass or volume per pulse or max. frequency for 100% flow
Pulse width: adjustable as automatic, symmetric or fixed (0.05...2000 ms)
Operating data Basic I/Os Basic I/Os Basic I/Os Basic I/Os Modular I/Os Modular I/Os Modular I/Os Modular I/Os Ex i Ex i Ex i Ex i
Active - U
nom
= 24 VDC -
f
max
in operating menu set
to
f
max
≤ 100 Hz:
I ≤ 20 mA
open:
I ≤ 0.05 mA
closed:
U
0, nom
= 24 V
at I = 20 mA
f
max
in operating menu set
to
100 Hz < f
max
≤ 10 kHz:
I ≤ 20 mA
open:
I ≤ 0.05 mA
closed:
U
0, nom
= 22.5 V
at I = 1 mA
U
0, nom
= 21.5 V
at I = 10 mA
U
0, nom
= 19 V
at I = 20 mA
.book Page 127 Monday, August 26, 2013 9:05 AM