Emerson Rosemount OCX8800A Manual page 34

Install
December 2022
WARNING
To meet the Safety Requirements of IEC 61010 (EC requirement), and ensure safe
operation of this equipment, connection to the main electrical power supply must
be made through a circuit breaker (minimum 10 A) in close proximity and marked
for this equipment which will disconnect all current-carrying conductors during a
fault situation. This circuit breaker should also include a mechanically operated
isolating switch. If not, then another external means of disconnecting the supply
from the equipment should be located close by. Circuit breakers or switches must
comply with a recognized standard such as IEC 947.
WARNING
The Rosemount OCX88A can be installed in general purpose areas only. Do not
install it in hazardous areas.
Note
To maintain proper earth grounding, ensure a positive connection exists between
the sensor housing, the electronics housing, and earth. The connecting ground
wire must be 14 AWG minimum. Refer to
Note
Line voltage, signal, and relay wiring must be rated for at least 221 °F (105 °C).
2.3.1 Electrical connections
Make electrical connections, power, and communications to the electronics
enclosure through two ¾-in. 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
Figure
2.3.3 Connect 4-20 mA signals
Connect the 4-20 mA current loop to the 4-20 mA signal output terminals in the
electronics housing as shown in
34
2-10.
Figure 2-10.
Figure 2-10.
Manual
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Emerson.com/Rosemount