The LS4000 is an in situ crossduct analyzer for measuring gas component concentrations. It applies the highly selective optical measuring principle of tunable diode laser (TDL) ab sorption spectroscopy. The LS4000 is a standalone system and is approved for use in hazardous areas according to international standards.
The ABB LS4000 is a standalone in-situ crossduct analyzer designed for measuring gas component concentrations. It utilizes the highly selective optical measuring principle of tunable diode laser (TDL) absorption spectroscopy. The system consists of a transmitter unit with a laser light source and a receiver unit with a photodetector, mounted opposite each other on a process pipe or stack and connected by a junction box.
| Measurement principle | Tunable diode laser (TDL) absorption spectroscopy |
|---|---|
| Max. temperature | 800 °C (1472 °F) |
| Optical path lengths | 0.5 to 20 m |
| Linearity deviation | ≤ 1 % of span |
| Response time | Typically 5 sec |
| Protection class | IP65 |
| Material | Stainless steel AISI 304H |
| Weight | 4.1 kg each |
It uses the optical measuring technique of absorption spectroscopy with a tunable laser diode.
Yes, it is approved for use in hazardous areas according to international standards.
The maximum temperature is 800 °C (1472 °F), with higher temperatures available on request.