Wiring Tables - Hach HART PR321 Instrucciones Para El Usuario

4.5 Connect the wires
Connect the wires to the module. Refer to
Refer to the wiring specifications in
Figure 5 Connect the wires

4.6 Wiring tables

Each output can be active through the use of internal module power or external/loop power (requires
an external VDC power supply).
When configured for HART communication, an external power supply is recommended. Refer to
Table 1. For maximum loop resistance versus voltage information, refer to
Table 1 Wiring information for externally/loop powered outputs
Output
Output C
Output C
—
Output B
Output B
—
Output A
Output A
—
Table 2 is not recommended for HART communication.
Wiring tables
Specifications on page 3.
Connection
(–) IN
(+) IN
—
(–) IN
(+) IN
—
(–) IN
(+) IN
—
on page 11 and Figure
Figure
Connector pin number
1
2
3
4
5
6
7
8
9
5.
6.
English 11