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Electrical connections
5.5
Connection examples for peripherals (incl. HART)
Current output
I
E
+31
0/4 ... 20 mA
0/2 ... 10 mA
-32
Current output:
selectable in software
Active
Function:
0/4 ... 20 mA (0 Ω ≤ RB ≤ 560 Ω)
0/2 ... 10 mA (0 Ω ≤ RB ≤ 1120 Ω)
Terminals: 31, 32
Fig. 40:
Current output active with/without HART protocol (4 ... 20 mA)
Contact output
I
E
R
+U
41
42
U
*
CE
R
B
I
CE
Contact output:
selectable in software
Passive
Function:
"closed" 0 V ≤ U
"open" 16 V ≤ U
Terminals: 41, 42
Fig. 41:
Contact output for system monitoring, Max.-Min. alarm for empty tube or forward/reverse signal
Contact input
I
E
81
R
i
82
Contact input:
selectable in software
Passive
Function:
"On" 16 V ≤ U
"Off" 0 V ≤ U
Ri = 2 kΩ
Terminals: 81, 82
Fig. 42:
Contact input for external totalizer reset and external zero return
44
G00243
(with HART only 4 ... 20 mA)
*
B
0 V
24 V DC
G00244
≤ 2 V, 2 mA ≤ I
CEL
CEL
≤ 30 V, 0 mA ≤ I
CEH
CEH
+ 16 ... 30 V DC
0 V
G00245
≤ 30 V
KL
≤ 2 V
KL
I = internal
E = external
≤ 220 mA
≤ 2 mA
FSM4000
Note
Horn and alarm light are shown only
as examples. Other suitable devices
such as bells, sirens, buzzers, etc.,
can also be used.
D184B140U02
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