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Reference Manual
00809-0100-4696, Rev AA
September 2004
Rosemount 848L
2-10
Using Conduit Entries Use the following steps to install the 848L with Conduit Entries:
1. Remove the junction box cover by unscrewing the four cover screws.
2. Remove the five conduit plugs and install five conduit fittings
(supplied by the installer).
3. Run sensor and output wires through each conduit fitting.
4. Install the I/O wires into the correct screw terminals.
5. Install the power/signal wires into the correct screw terminals. Bus
power is polarity insensitive, allowing the user to connect positive (+)
or negative (–) to either Fieldbus wiring terminal labeled “Bus.” I/O
power is polarity sensitive and must be connected correctly to avoid
damage to the transmitter. See Figure 2-4 on page 2-5.
6. Replace the junction box cover and securely tighten all cover screws.
Figure 2-9. Installing the 848L
with Conduit Entries
Enclosure
Cover Screw
Power/Signal
Conduit
I /O
848_848A09A