The LS4000 is an in situ cross-duct analyzer for measuring gas component concentrations.

It applies the highly selective, optical measuring principle of tunable diode laser (TDL)

absorption spectroscopy.

The LS4000 is a stand-alone system and is approved for use in hazardous areas according

to international standards. The device consists of a transmitter unit with a laser light source and a receiver

unit with a photodetector. The two units are mounted opposite each other on the process pipe or stack

and are connected by a junction box.

Fast and direct

A sampling and conditioning system is unnecessary since the instrument is directly installed on the

process (in situ).

This results in a typical response time of 2 seconds, providing better loop control and faster detection of

critical conditions.

The in situ laser analyzer is ideally suited for process optimization and safety measurements.

Safe, compact and easy

− No purging for installations in hazardous areas – the analyzer includes flameproof housing (Ex-d) with

international certifications

− No nitrogen purging of the analyzer housing for O2 measurement

− Insensitive to vibrations through compact and lightweight design

− Ease of maintenance