Teledyne 6000A - Photometric analyzer - Manual (Page 69)

Part II: 1-7
Photometric Analyzer Operational Theory 1
Teledyne Analytical Instruments
background chemicals below zero on an hourly basis. The zero fluid in this case
is the sample of which the component of interest is filtered out while the
background chemicals are preserved. The Auto Zero system corrects for
background changes on an hourly basis, if the analyzer is set to Auto-Zero in
an hourly basis.
1.5 System Description
The photometric analyzer is generally constructed for general-purpose
(Model 6000A) use and is mounted on a BACKPLATE, an open rack, or in a
closed cubicle.
1.6 Photometer
The three photometer modules are mounted on a BACKPLATE.
Facing the mounted photometer, the source module is at the right, the sample
module is in the center, and the detector module is on the left. Figure 6 shows
a diagram of the modules. A source power supply module is placed near the
source module. Modules for the general-purpose units (Model 6000) are
constructed of sheet metal.
Source Power Supply and optional Temperature Controller PCB