Emerson Process Management IM-106-340 Electrical Installation with Remote Electronics

Instruction Manual

IM-106-340, Rev. 4.0 May 2006

Oxymitter 4000

ELECTRICAL INSTALLATION (WITH REMOTE ELECTRONICS)

For Oxymitter 4000 with Remote Electronics

All wiring must conform to local and national codes.

Disconnect and lock out power before connecting the power supply.

Install all protective covers and safety ground leads after installation. Failure to install covers and ground leads could result in serious injury or death.

To meet the Safety Requirements of IEC 1010 (EC requirement), and ensure safe operation of this equipment, connection to the main electrical power supply must be made through a circuit breaker (min 10 A) 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.

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 Figure 2-10.

NOTE

Line voltage, signal, and relay wiring must be rated for at least 221°F (105°C).

1.Remove cover (27) from remote electronics.

2.Connect Line Voltage.

a.Connect the line, or L1 wire to the L1 terminal and the neutral, or L2 wire, to the N terminal (Figure 2-10). The Oxymitter 4000 automatically will configure itself for 90-250 VAC line voltage and 50/60 Hz. The power supply requires no setup.

3.Connect 4-20 mA Signal and Calibration Handshake/Logic I/O Leads (Figure 2-10). Use individual shielded twisted wire pairs. Terminate the shield only at the electronics housing.

a.4-20 mA Signal. The 4-20 mA signal represents the O2 value and can also operate the Model 751 Remote Powered Loop LCD Display or any other loop powered display. Superimposed on the 4-20 mA signal is HART information that is accessible through a Model 275/375 Handheld Communicator or AMS software.

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