Teledyne 6600 manual Photometer, Source Module, Sample Cell

Oil in Water Part III

All sample-filtering (fluid) components are located on the same side of the equipment panel as the electrical components.

3.1Photometer

The photometer control/analysis unit module is mounted on a back panel. Modules for General Purpose; I, II, B, C & D; and I, I, B, C & D are avail- able and mounted within sheet metal Nema enclosures as well as Nema stainless enclosures depending upon customer preference for the intended environmental areas. These enclosures are either Z-purged or X-purged to meet hazardous area classifications. In some cases, Teledyne has supplied non-purged, Division II Oil in Water systems self-certified to FM standard 3600 for non-incendive equipment and ISA S12.12-1994 standard for the same type equipment (Class I, Div II, B, C, D).

3.1.1Source Module

The source module contains a mercury-line lamp (the source of UV energy) located within a parabolic reflector which captures most of the emitted lamp output energy. A quartz lens is used to focus the energy into a beam for transmission through the optical path and sample cell before reaching the detector (PMT).

WARNING:

The lamp is installed within a parabolic reflector. It emits strong UV radiation. When the module is opened with the lamp on, UNDER NO CIRCUMSTANCES SHOULD THE OPERATOR VIEW THE LAMP DIRECTLY OR BE ALLOWED TO OPERATE THE UNIT UNLESS PERSONNEL IN THE IMMEDIATE VICINITY ARE PROTECTED WITH SUITABLE UV ABSORBING EYEGLASSES.

3.1.2Sample Cell

All systems, the Aluminum/CPVC sample cell couples the source and detector modules together along a folded optical train of the photometer. The sample cell includes double windows (inner sapphire, outer Quartz), at either end, to prevent condensate from forming in the optical path.

Teledyne Analytical Instruments Part III: 1-9