Emerson Process Management OXYMITTER 4000 instruction manual J8 Connector

Hazardous Area Oxymitter 4000

Instruction Manual

IB-106-340C Rev. 4.1 July 2004

POWER

SUPPLY

BOARD

J8

37270022

Figure 9-6. J8 Connector

3.Loosen the three captive screws (9, Figure 9-3or Figure 9-4). Slide electronic assembly (2) partially out of housing (11).

10.Reconnect the J1 connector to the microprocessor board (Figure 9-5). Ensure the connector is secure.

11.Tighten the three captive screws (9, Figure 9-3or Figure 9-4)in the top of the microprocessor board (5).

12.Install and tighten cover (1); make sure it is tight. Secure the cover using cap- tive washer (20), cover lock (19), and screw (18).

Opening the electronic housing will cause the loss of ALL hazardous per- mits. Opening the electronics housing in a hazardous area may cause an explosion resulting in loss of property, severe personal injury, or death. It may be required to get a hot work permit from your company safety officer be- fore opening the electronic housing.

4.See Figure 9-6.Squeeze the sides of the J8 connector, and carefully remove the J8 connector (heater leads) from the power supply board.

5.Remove the electronic assembly (2, Figure 9-3or Figure 9-4)from the housing(11).

6.Slide the new electronic assembly (2) partially into the housing (11).

7.Reconnect the J8 connector to the power supply board. Make sure the connector is secure.

8.Holding the J1 connector leads, slide the electronic assembly the rest of the way into the housing. Seat the electronic assembly on the mating connector pins.

9.Gently try to rotate the electronic assembly to check for full seating. If the electronic assembly rotates, remove the assembly and repeat step 8.

d.Terminal Block Replacement See Figure 9-3or Figure 9-4.

1.Remove the left side cover (17) from the housing (11).

2.Loosen the three captive screws (16) in the terminal block (15). Carefully lift the terminal block out of the housing.

3.Carefully align the new terminal block on the pins so that it sits flat in the housing. The round end of the terminal block should be on the opposite side of the housing conduit ports and should not be able to rotate.

4.Tighten the three mounting screws and ensure the terminal block is secure in the housing.

9

Rosemount Analytical Inc. A Division of Emerson Process Management Maintenance and Service 9-11