Emerson Rosemount OCX8800 Quick Start Manual page 10

Quick Start Guide
2.3.1 Electrical connections
Make electrical connections, power, and communications to the electronics
enclosure through two ¾ national pipe thread (NPT) ports in the enclosure,
using fittings and cables provided by the customer.
Cable installation must meet NEC, IEC, and/or other applicable national or
local codes for Class I, Zone 1, IIB +H2 T3/T6 permanently mounted
equipment.
2.3.2 Connect line voltage
The transmitter operates on 100 to 240 Vac line voltage at 50 to 60 Hz. The
power supply requires no setup.
Connect the line (L wire) to the L terminal and the neutral (N wire) to the N
terminal on the AC power input terminal block in the electronics housing.
Connect the ground (G wire) to the ground stud in the electronics housing as
shown in
2.3.3 Connect output signals
The transmitter comes with a single F
Connect the output terminals in the electronics housing as shown in
2-2.
Use individual shielded twisted wire pairs. Terminate the shield at the
electronics housing.
2.3.4 Oxygen (O
One 4-20 mA signal represents the O
Superimposed on the O
accessible through a handheld communicator or AMS Device Manager
software.
The O signal is at the AOUT 1 terminals.
2
2.3.5 Combustibles equivalent (COe) 4-20 mA signal
Another 4-20 mA signal at the AOUT 2 terminals represents the COe value.
2.3.6 F
OUNDATION
The F
OUNDATION
accessible through a Handheld Communicator.
2.3.7 Alarm output relay
Connect any customer-supplied relay input to the alarm output relay
terminal. Use shielded wire and terminate the shield at the electronics
10
Figure 2-2.
) 4-20 mA signal
2
signal is the F
2
™
Fieldbus signal
Fieldbus signal provides all output information and is
™
Fieldbus signal.
OUNDATION
value.
2
™
Fieldbus information
OUNDATION
February 2020
Figure
Rosemount OCX8800