KROHNE MFC 300 EN - Manual (Page 142)

8
TECHNICAL DATA
142
MFC 300
www.krohne.com 02/2012 - 4000498602 - MA MFC 300 R03 en
Control input Control input Control input Control input
Function Hold value of the outputs (e.g. for cleaning work), set value of the outputs to "zero",
counter and error reset, stop counter, range conversion, zero calibration
Start of dosing when dosing function is activated.
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
int
= 24 VDC
Ext. contact open:
U
0, nom
= 22 V
Ext. contact closed:
I
nom
= 4 mA
Contact closed (On):
U
0
≥ 12 V
with I
nom
= 1.9 mA
Contact open (Off):
U
0
≤ 10 V
with I
nom
= 1.9 mA
-
Passive 8 V ≤ U
ext
≤ 32 VDC
I
max
= 6.5 mA
at U
ext
≤ 24 VDC
I
max
= 8.2 mA
at U
ext
≤ 32 VDC
Contact closed (On):
U
0
≥ 8 V
with I
nom
= 2.8 mA
Contact open (Off):
U
0
≤ 2.5 V
with I
nom
= 0.4 mA
3 V ≤ U
ext
≤ 32 VDC
I
max
= 9.5 mA
at U
ext
≤ 24 V
I
max
= 9.5 mA
at U
ext
≤ 32 V
Contact closed (On):
U
0
≥ 3 V
with I
nom
= 1.9 mA
Contact open (Off):
U
0
≤ 2.5 V
with I
nom
= 1.9 mA
U
ext
≤ 32 VDC
I ≤ 6 mA at U
ext
= 24 V
I ≤ 6.6 mA at U
ext
= 32 V
On:
U
0
≥ 5.5 V or I ≥ 4 mA
Off:
U
0
≤ 3.5 V or I ≤ 0.5 mA
U
i
= 30 V
I
i
= 100 mA
P
i
= 1 W
C
i
= 10 nF
L
i
= 0 mH
NAMUR - Active to EN 60947-5-6
Terminals open:
U
0, nom
= 8.7 V
Contact closed (On):
U
0, nom
= 6.3 V
with I
nom
> 1.9 mA
Contact open (Off):
U
0, nom
= 6.3 V
with I
nom
< 1.9 mA
Detection of cable break:
U
0
≥ 8.1 V
with I ≤ 0.1 mA
Detection of cable short
circuit:
U
0
≤ 1.2 V
with I ≥ 6.7 mA
-
.book Page 142 Monday, February 6, 2012 11:01 AM