KROHNE OPTIMASS with MFC 300 EN - Manual (Page 88)

88
A+
A-
A mA
24V
DC
- +
U
ext
B
B-
1
A+
A-
A mA
U
ext
- +
X
X-
=
U
ext
2
4
5
I
a
22mA
RL
a 1
K
HART ® connection
See P.73
D
R
D-
U
ext
=
0 0 0
Σ
3
I
a
22mA
Uext
a 1 K
R = 1.2
K
/ 0.5 W
Only necessary when
using an electronic
totalizer with an
impedance
>
5 K
f
a
10 KHz: I
a
20 mA
f
a
100 Hz: I
a
100 mA
Uo 1.5V @ 10 mA
Uext
a
32 V Dc
Can also be set as status output. In this case,
connection is as shown in fig. 4
Uo 1.5V @ 10 mA
Uext
a
32 V Dc
I
a
100 mA
X = terminals B or D
Uon 19 V DC
Uoff 2.5 V DC
Uext
a
32 V Dc
I0
a 100
mA
Can also be set as status output , in which
case electrical connections are as per fig. 4.
1 Current Output Active Ia HART ®
2
Current Output Passive Ip HART ®
3
Pulse / Frequency Output Passive Pp
4
Status Output / Limit Switch Passive Sp
5
Control Input Passive Cp