Emerson Process Management IB106-340 Board Replacement, Connect replacement board to board, 18 or

Instruction Manual

IB-106-340 Rev. 2.4 April, 2001

Oxymitter 4000

b. Board Replacement	10. Connect replacement board to board
	(18 or 19).

Perform the following procedure to replace power supply board (18, Figure 6-11)or in- terface board (19).

Disconnect and lock out power before working on any electrical components.

1.Turn off power to the system.

2.Remove screw (7) securing manifold cover lock (6) and remove the lock.

3.Remove manifold cover (14).

4.Remove two screws (11) attaching spacers (9) to manifold (5).

5.Being careful not to disconnect the board wiring, carefully lift power supply board (18) and interface board (19) from manifold (5) and set aside. Do not lose O-rings (8) from the bottom of spacers (9).

6.Tag all leads on the board to be re- placed to simplify installation.

7.See Figure 6-12.If removing the power supply board, remove the line voltage input leads from connector J7. Also, unplug calibration gas 1 solenoid leads from connector J5, calibration gas 2 solenoid leads from connector J4, and pressure switch leads from connector J2.

See Figure 6-12.If removing the inter- face board, remove the CAL INITIATE leads from connector J3, CAL FAIL and IN CAL leads from connector J4, and logic I/O handshake connection from connector J5.

8.Remove stop nuts (22, Figure 6-11),washers (21), and screws (10) secur- ing power supply board (18) and inter- face board (19) to spacers (9).

9.Carefully separate boards (18 and 19).

11.Install screws (10), washers (21), and stop nuts (22) to secure power supply board (18) and interface board (19) to spacers (9).

12.Install all applicable leads in the appro- priate locations on the power supply board or interface board as shown in Figure 6-12.

13.Install power supply board (18, Figure 6-11)and interface board (19) into manifold (5). Align spacers (9) with the mounting holes on the manifold and secure with screws (11). Ensure O-rings (8) are installed between the spacers and the manifold surface.

14.Install manifold cover (14) and secure with manifold cover lock (6) and screw

(7).

c.Solenoid Replacement

The SPS 4000 manifold has a calibration gas 1 (high calibration gas) solenoid (20, Figure 6-11)and a calibration gas 2 (low calibration gas) solenoid (13).

Disconnect and lock out power before working on any electrical components.

1.Turn off power to the system.

2.Shut off the calibration gases at the cylinders.

3.Remove screw (7) securing manifold cover lock (6) and remove the lock.

4.Remove manifold cover (14).

5.Remove two screws (11) attaching spacers (9) to manifold (5).

6.Being careful not to disconnect the board wiring, carefully lift the board and spacer assembly from manifold (5) and set aside. Do not lose O-rings (8) from the bottom of spacers (9).

6-18 Maintenance and Service Rosemount Analytical Inc. A Division of Emerson Process Management