Samson 3730 Series Mounting And Operating Instructions page 47

Connections
(reference variable) as for point-to-point
communication. This operating mode is, for
250 Ω
example, suitable for split-range operation
22 μF
of positioners (series connection). The bus
address/polling address has to be within a
range of 1 to 15.
Controller/control station
Note:
Communication errors may occur when the
Fig. 18 · Adapting the output signal
process controller/control station output is
not HART-compatible.
For adaptation, the Z box (order no.
1170-2374) can be installed between out-
put and communication interface.
At the Z box a voltage of 330 mV is re-
leased (16.5 Ω at 20 mA).
Alternatively, a 250- Ω resistor can be con-
nected in series and a 22- μ F capacitor can
be connected in parallel to the analog out-
put. Note that in this case, the controller out-
put load will increase.
47
EB 8384-3 EN