Instrument Description

The analyser consists of 3 separate units:

 Transmitter unit with decontamination

 Receiver unit with decontamination

 Power supply unit

The transmitter unit consists of the laser module, the temperature stabilised diode laser,

the collimating optics and the main electronics in a coated aluminium case.

The receiver unit contains a focusing lens, photodetector and receiver electronics in a coated aluminium case.

Both the transmitter and receiver have an environmental protection rating of IP66.

The standard optical window is pressure resistant up to 5 bar (absolute pressure).

The monitor is mounted by assembling the transmitter and receiver with the supplied

purge and calibration unit and mounting to a DN50 process flange (see Figure 3-1).

Optical alignment is both simple and reliable, and the purge device prevents dust

and other contaminants from being deposited on the optical window.