Instruction Manual

245364-V May 2002

Model 755A

A. Detector/Magnet Assembly - Exploded View

B. Optical Bench - Exploded View

 

 

Connector

Sample Pre-Heating

 

J12

Coil

 

 

 

Photocell

 

Connector

Lock Screws (2)

 

 

 

Board

 

 

Sample Inlet

 

 

Tube

 

Dual

Sample Out-

Lamp Retaining

let Tube

Photocell

 

Set Screw

 

Magnet

 

 

Detector Assembly Assembly

Lamp Viewing

 

Optical Bench Assembly

Source Lamp

Hole

Assembly

Mounting Screws (2)

 

 

 

Figure 6-1. Detector/Magnet Assembly

A. Connections to Source Lamp and Photocell

B. Connections to Suspension and Heater Circuits

RED

BLU

1018

BRN

YEL

J12

1

 

ORN

Dual

PhotocellGRY

Sense

Old Style Lamp

1018

J12 1

When dual photocell is installed, the gap between the two photocells should be in position indicated by this line.

WHT

WHT

RT1

 

 

BLK

 

 

HR2

 

BLK

Suspension

 

 

Heater

 

PUR

Suspension

GRN

Terminals

 

Hole for Source Lamp

Optical Bench

C. Removal and Insertion of Pin/Leads in Connector J12

Upper Slot

Keeper

 

Side View

Connector Pin Removed

of Connector

Connector Pin/

 

 

Leads in Place

Lower Slot

 

 

Improvised Pin Removal Tool, Such as a Paper Clip

Figure 6-2. Detector/Magnet Assembly Wiring

6-4

Service and Maintenance

Rosemount Analytical Inc. A Division of Emerson Process Management