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Endura ACA592
Toroidal conductivity transmitter
4 Electrical Installation
28
OI/ACA592/TC–EN Rev. B
4.2 DC Power Supply Connections
To connect the HART power supply:
1.
Route the power supply wiring through one of the three threaded connections in the transmitter
housing.
2.
Strip the wires and tin or attach wire end sleeves.
3.
Loosen the power supply terminal captive screws (
1
,
2
and
3
) using a flat-bladed screwdriver
(3.5 / 4 mm or Size-1).
4.
Connect the (+) wire to the (+) terminal
1
.
5.
Connect the (–) wire to the (–) terminal
2
.
6.
Connect the cable shield or earth (ground) wire to the earth (ground) terminal
3
(if required).
Fig. 4.2 Power Supply Connections at Transmitter Terminals
Note.
HART Communication
Communication with the transmitter is supported by the HART protocol. The communication signal is
modulated on both wires for the power supply line and decoded by the transmitter. The electrical
connection is provided at the (+) and (–) terminals of the transmitter or by the power supply cable that is
installed on-site.
Key
:
1
Po
2
Negative –
3
Earth (Ground)
*DC Power Supply Requirements
:
Non-Intrinsically safe transmitters:
12 to 42 V DC, 4 to 20 mA
Intrinsically safe transmitters:
12 to 30 V DC, 4 to 20 mA
Transmitter Type
Connection Label*
(inside End Cap)