Emerson 3000 World Class, Instruction Bulletin, E-9REPLACE MICROPROCESSOR BOARD, E-11REPLACE FAN

World Class 3000

Instruction Bulletin

Appendix E Rev. 4.6 May 2005

E-9 REPLACE MICROPROCESSOR BOARD

a.Remove four screws (1, Figure E-7) and washers (2).

Pull very carefully on the microproc- essor board to ensure that none of the mating connector pins are dam- aged.

b.Carefully unplug and remove microproc- essor board (3) from interconnect board

(4).

c.Carefully line up connector of new micro- processor board (3) and interconnect board (4). Plug in mating connectors.

d.Secure microprocessor board (3) to mounting plate (5) with screws (1) and washers (2).

E-10 REPLACE INTERCONNECT BOARD

a.Carefully tag and remove the jumper wires from terminal strip on interconnect board (4, Figure E-7). Jumper wires must be installed in same terminals on re- placement interconnect board.

b.Remove screws (6) and washers (7).

Pull very carefully on the intercon- nect board to ensure that none of the mating connector pins are dam- aged.

c.Carefully unplug and remove interconnect board (4) from microprocessor board (3).

d.Carefully line up connector of new inter- connect board (4) and microprocessor board (3). Plug in mating connectors.

e.Secure interconnect board (4) to mount- ing plate (5) with screws (6) and washers

(7).

f.Reconnect tagged jumper wires to mating terminals of interconnect board (4).

E-11 REPLACE FAN

a.Remove screws (8, Figure E-7), self- locking hex nuts (9), and fan (10) from mounting plate (5).

b.Cut fan lead wires (only) at connector side of installed heat shrink.

c.Strip 0.5 to 0.6 in. (13 to 15 mm) of wire insulation from fan leads of fan and heater connector plug (11).

d.Slide one 2-in. (50 mm) length of heat shrink tubing onto each lead of fan (10).

e.Connect and solder lead wires of new fan (10) to mating lead wires on fan and heater connector plug (11). Install heat shrink tubing over soldered lead wire connections.

f.Attach fan (10) with screws (8) and self- locking hex nuts (9) to mounting plate (5).

E-12 REPLACE POWER SUPPLY BOARD

a.Loosen two screws (1, Figure E-8) and remove protective cover (2). Remove standoffs (3).

b.Unplug transformer connector plugs (not shown) from power supply board (4).

c.Remove three screws (5), two plastic washers (6), and external lock washer (7). Remove power supply board (4).

d.Install new power supply board (4) on electronics chassis (8). Secure power supply board with screws (5), washers (6 and 7), and standoffs (3).

e.Install protective cover (2) and screws (1) to secure the cover.

f.Connect transformer connector plugs (not shown) to mating receptacles on power supply board (4).

Rosemount Analytical Inc. A Division of Emerson Process Management Appendices E-11