process gas analyzer / oxygen / carbon monoxide / temperature



  • Measured entity:

    process gas, oxygen, carbon monoxide

  • Measured value:


  • Configuration:

    portable, in situ

  • Other characteristics:

    monitoring, control, laser diode, online


Laser diode gas analyzer
SITRANS SL – easy to handle with contact-free measurement
The gas analyzer SITRANS SL consists of a pair of cross-duct sensors, a transmitter unit and a detector unit, both with the same dimensions. The sensors (transmitter and receiver) are meant to be mounted directly on the process with no need of sampling systems. The hardware for processing the measurement signal into a concentration value as well as monitoring, control and serving of the communication means are also integrated into these two main modules. The sensors are designed for operation under harsh environmental conditions. Laser light is sent from the transmitter, passing through the process gas, arriving at the detector on the receiver side. The measurements are carried out on-line with a very short response time permitting fast and effective cost-savings in process control. The laser characteristics allow single-line spectroscopy free of interferences. Since the band width of the laser light is extremely narrow, only the gas component of interest will interact with it. Other process influences, such as dust and temperature, are easily eliminated due to the excellent inherent compensation capabilities of this technique.

High functionality with remote control
The detector unit is connected to the transmitter unit by means of a sensor cable. A further cable on the receiver is used to connect the power supply and the communication interfaces. The receiver enclosure contains a local user interface (LUI) with an LC display which can be read through a window in the cover. The LUI is operated by remote control.

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