Honeywell ST 3000 - Manual (Page 51)

4.3 Wiring ST 3000 Transmitter,
Continued
Wiring connections The procedure in Table 15 shows the steps for connecting power to the
transmitter. For loop wiring and external wiring diagrams, refer to the
installation drawings presented in Section 5. Detailed drawings are
provided for transmitter installation in non-intrinsically safe areas and
for intrinsically safe loops in hazardous area locations. If you are using
the transmitter with Honeywell’s TPS system, see the previous TPS
reference.
ATTENTION
• All wiring must comply with local codes, regulations, and
ordinances.
• If you will be using the transmitter in a hazardous area, be sure to
review the hazardous location reference data included in Appendix
A of this manual before operating the transmitter.
Table 15 Wiring the Transmitter
Step Action
1 Loosen end-cap lock using a 1.5 mm allen wrench and remove end-
cap cover from terminal block end of transmitter housing.
2 Feed loop power leads through one of conduit entrances on either
side of transmitter housing. Plug whichever entrance you do not use.
ATTENTION The transmitter accepts up to 16 AWG wire.
3 Observing polarity, connect positive loop power lead to SIGNAL +
terminal and negative loop power lead to SIGNAL – terminal.
Example - Connecting loop power to transmitter.
3-screw terminal block
-
S
IG
N
A
L
+
+
-
T
E
S
T
+
-
Loop
Power
5-screw terminal (option LP)
+
+
-
-
L
-
S
IG
N
A
L
M
E
T
E
R
T
E
S
T
S
IG
N
A
L
-
+
+
-
+
-
Loop
Power
4 Replace end-cap, and tighten end-cap lock.
Continued on next page
2/05 ST 3000 Release 300 Installation Guide 41